clamsmtp-1.10/0000777000175000017500000000000011032211510010242 500000000000000clamsmtp-1.10/README0000644000175000017500000000117010626145255011061 00000000000000================================================================= CLAMSMTP README ClamSMTP is an SMTP filter that allows you to check for viruses using the ClamAV anti-virus software. It accepts SMTP connections and forwards the SMTP commands and responses to another SMTP server. The 'DATA' email body is intercepted and scanned before forwarding. See the website: http://memberwebs.com/swalter/software/clamsmtp/ How to use with Postfix: http://memberwebs.com/swalter/software/clamsmtp/postfix.html How to use as a Transparent Proxy: http://memberwebs.com/swalter/software/clamsmtp/transparent.html clamsmtp-1.10/configure.in0000644000175000017500000001115111032210574012477 00000000000000dnl dnl Copyright (c) 2004, Stefan Walter dnl All rights reserved. dnl dnl Redistribution and use in source and binary forms, with or without dnl modification, are permitted provided that the following conditions dnl are met: dnl dnl * Redistributions of source code must retain the above dnl copyright notice, this list of conditions and the dnl following disclaimer. dnl * Redistributions in binary form must reproduce the dnl above copyright notice, this list of conditions and dnl the following disclaimer in the documentation and/or dnl other materials provided with the distribution. dnl * The names of contributors to this software may not be dnl used to endorse or promote products derived from this dnl software without specific prior written permission. dnl dnl THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS dnl "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT dnl LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS dnl FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE dnl COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, dnl INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, dnl BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS dnl OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED dnl AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, dnl OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF dnl THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH dnl DAMAGE. dnl dnl dnl CONTRIBUTORS dnl Stef Walter dnl dnl Process this file with autoconf to produce a configure script. AC_INIT(clamsmtp, 1.10, stef@memberwebs.com) AM_INIT_AUTOMAKE(clamsmtp, 1.10) LDFLAGS="$LDFLAGS -L/usr/local/lib" CFLAGS="$CFLAGS -I/usr/local/include" AC_CONFIG_SRCDIR([src/clamsmtpd.c]) AM_CONFIG_HEADER([config.h]) # Checks for programs. 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then { echo "$as_me:$LINENO: result: $CC" >&5 echo "${ECHO_T}$CC" >&6; } else { echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6; } fi fi fi if test -z "$CC"; then # Extract the first word of "cc", so it can be a program name with args. set dummy cc; ac_word=$2 { echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } if test "${ac_cv_prog_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else ac_prog_rejected=no as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then ac_prog_rejected=yes continue fi ac_cv_prog_CC="cc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS if test $ac_prog_rejected = yes; then # We found a bogon in the path, so make sure we never use it. set dummy $ac_cv_prog_CC shift if test $# != 0; then # We chose a different compiler from the bogus one. # However, it has the same basename, so the bogon will be chosen # first if we set CC to just the basename; use the full file name. shift ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" fi fi fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then { echo "$as_me:$LINENO: result: $CC" >&5 echo "${ECHO_T}$CC" >&6; } else { echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6; } fi fi if test -z "$CC"; then if test -n "$ac_tool_prefix"; then for ac_prog in cl.exe do # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. set dummy $ac_tool_prefix$ac_prog; ac_word=$2 { echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } if test "${ac_cv_prog_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then ac_cv_prog_CC="$ac_tool_prefix$ac_prog" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then { echo "$as_me:$LINENO: result: $CC" >&5 echo "${ECHO_T}$CC" >&6; } else { echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6; } fi test -n "$CC" && break done fi if test -z "$CC"; then ac_ct_CC=$CC for ac_prog in cl.exe do # Extract the first word of "$ac_prog", so it can be a program name with args. set dummy $ac_prog; ac_word=$2 { echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } if test "${ac_cv_prog_ac_ct_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$ac_ct_CC"; then ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. else as_save_IFS=$IFS; 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exit 1; }; };; esac build=$ac_cv_build ac_save_IFS=$IFS; IFS='-' set x $ac_cv_build shift build_cpu=$1 build_vendor=$2 shift; shift # Remember, the first character of IFS is used to create $*, # except with old shells: build_os=$* IFS=$ac_save_IFS case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac { echo "$as_me:$LINENO: checking host system type" >&5 echo $ECHO_N "checking host system type... $ECHO_C" >&6; } if test "${ac_cv_host+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test "x$host_alias" = x; then ac_cv_host=$ac_cv_build else ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` || { { echo "$as_me:$LINENO: error: $SHELL $ac_aux_dir/config.sub $host_alias failed" >&5 echo "$as_me: error: $SHELL $ac_aux_dir/config.sub $host_alias failed" >&2;} { (exit 1); exit 1; }; } fi fi { echo "$as_me:$LINENO: result: $ac_cv_host" >&5 echo "${ECHO_T}$ac_cv_host" >&6; } case $ac_cv_host in *-*-*) ;; *) { { echo "$as_me:$LINENO: error: invalid value of canonical host" >&5 echo "$as_me: error: invalid value of canonical host" >&2;} { (exit 1); exit 1; }; };; esac host=$ac_cv_host ac_save_IFS=$IFS; IFS='-' set x $ac_cv_host shift host_cpu=$1 host_vendor=$2 shift; shift # Remember, the first character of IFS is used to create $*, # except with old shells: host_os=$* IFS=$ac_save_IFS case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu acx_pthread_ok=no # We used to check for pthread.h first, but this fails if pthread.h # requires special compiler flags (e.g. on True64 or Sequent). # It gets checked for in the link test anyway. # First of all, check if the user has set any of the PTHREAD_LIBS, # etcetera environment variables, and if threads linking works using # them: if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" save_LIBS="$LIBS" LIBS="$PTHREAD_LIBS $LIBS" { echo "$as_me:$LINENO: checking for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS" >&5 echo $ECHO_N "checking for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS... $ECHO_C" >&6; } cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char pthread_join (); int main () { return pthread_join (); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_link") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest$ac_exeext && $as_test_x conftest$ac_exeext; then acx_pthread_ok=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 fi rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \ conftest$ac_exeext conftest.$ac_ext { echo "$as_me:$LINENO: result: $acx_pthread_ok" >&5 echo "${ECHO_T}$acx_pthread_ok" >&6; } if test x"$acx_pthread_ok" = xno; then PTHREAD_LIBS="" PTHREAD_CFLAGS="" fi LIBS="$save_LIBS" CFLAGS="$save_CFLAGS" fi # We must check for the threads library under a number of different # names; the ordering is very important because some systems # (e.g. DEC) have both -lpthread and -lpthreads, where one of the # libraries is broken (non-POSIX). # Create a list of thread flags to try. Items starting with a "-" are # C compiler flags, and other items are library names, except for "none" # which indicates that we try without any flags at all, and "pthread-config" # which is a program returning the flags for the Pth emulation library. acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" # The ordering *is* (sometimes) important. Some notes on the # individual items follow: # pthreads: AIX (must check this before -lpthread) # none: in case threads are in libc; should be tried before -Kthread and # other compiler flags to prevent continual compiler warnings # -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) # -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads) # -pthreads: Solaris/gcc # -mthreads: Mingw32/gcc, Lynx/gcc # -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it # doesn't hurt to check since this sometimes defines pthreads too; # also defines -D_REENTRANT) # pthread: Linux, etcetera # --thread-safe: KAI C++ # pthread-config: use pthread-config program (for GNU Pth library) case "${host_cpu}-${host_os}" in *solaris*) # On Solaris (at least, for some versions), libc contains stubbed # (non-functional) versions of the pthreads routines, so link-based # tests will erroneously succeed. (We need to link with -pthread or # -lpthread.) (The stubs are missing pthread_cleanup_push, or rather # a function called by this macro, so we could check for that, but # who knows whether they'll stub that too in a future libc.) So, # we'll just look for -pthreads and -lpthread first: acx_pthread_flags="-pthread -pthreads pthread -mt $acx_pthread_flags" ;; esac if test x"$acx_pthread_ok" = xno; then for flag in $acx_pthread_flags; do case $flag in none) { echo "$as_me:$LINENO: checking whether pthreads work without any flags" >&5 echo $ECHO_N "checking whether pthreads work without any flags... $ECHO_C" >&6; } ;; -*) { echo "$as_me:$LINENO: checking whether pthreads work with $flag" >&5 echo $ECHO_N "checking whether pthreads work with $flag... $ECHO_C" >&6; } PTHREAD_CFLAGS="$flag" ;; pthread-config) # Extract the first word of "pthread-config", so it can be a program name with args. set dummy pthread-config; ac_word=$2 { echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } if test "${ac_cv_prog_acx_pthread_config+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$acx_pthread_config"; then ac_cv_prog_acx_pthread_config="$acx_pthread_config" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then ac_cv_prog_acx_pthread_config="yes" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS test -z "$ac_cv_prog_acx_pthread_config" && ac_cv_prog_acx_pthread_config="no" fi fi acx_pthread_config=$ac_cv_prog_acx_pthread_config if test -n "$acx_pthread_config"; then { echo "$as_me:$LINENO: result: $acx_pthread_config" >&5 echo "${ECHO_T}$acx_pthread_config" >&6; } else { echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6; } fi if test x"$acx_pthread_config" = xno; then continue; fi PTHREAD_CFLAGS="`pthread-config --cflags`" PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" ;; *) { echo "$as_me:$LINENO: checking for the pthreads library -l$flag" >&5 echo $ECHO_N "checking for the pthreads library -l$flag... $ECHO_C" >&6; } PTHREAD_LIBS="-l$flag" ;; esac save_LIBS="$LIBS" save_CFLAGS="$CFLAGS" LIBS="$PTHREAD_LIBS $LIBS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" # Check for various functions. We must include pthread.h, # since some functions may be macros. (On the Sequent, we # need a special flag -Kthread to make this header compile.) # We check for pthread_join because it is in -lpthread on IRIX # while pthread_create is in libc. We check for pthread_attr_init # due to DEC craziness with -lpthreads. We check for # pthread_cleanup_push because it is one of the few pthread # functions on Solaris that doesn't have a non-functional libc stub. # We try pthread_create on general principles. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include int main () { pthread_t th; pthread_join(th, 0); pthread_attr_init(0); pthread_cleanup_push(0, 0); pthread_create(0,0,0,0); pthread_cleanup_pop(0); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_link") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest$ac_exeext && $as_test_x conftest$ac_exeext; then acx_pthread_ok=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 fi rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \ conftest$ac_exeext conftest.$ac_ext LIBS="$save_LIBS" CFLAGS="$save_CFLAGS" { echo "$as_me:$LINENO: result: $acx_pthread_ok" >&5 echo "${ECHO_T}$acx_pthread_ok" >&6; } if test "x$acx_pthread_ok" = xyes; then break; fi PTHREAD_LIBS="" PTHREAD_CFLAGS="" done fi # Various other checks: if test "x$acx_pthread_ok" = xyes; then save_LIBS="$LIBS" LIBS="$PTHREAD_LIBS $LIBS" save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" # Detect AIX lossage: threads are created detached by default # and the JOINABLE attribute has a nonstandard name (UNDETACHED). { echo "$as_me:$LINENO: checking for joinable pthread attribute" >&5 echo $ECHO_N "checking for joinable pthread attribute... $ECHO_C" >&6; } cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include int main () { int attr=PTHREAD_CREATE_JOINABLE; ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_link") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest$ac_exeext && $as_test_x conftest$ac_exeext; then ok=PTHREAD_CREATE_JOINABLE else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ok=unknown fi rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \ conftest$ac_exeext conftest.$ac_ext if test x"$ok" = xunknown; then cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include int main () { int attr=PTHREAD_CREATE_UNDETACHED; ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_link") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest$ac_exeext && $as_test_x conftest$ac_exeext; then ok=PTHREAD_CREATE_UNDETACHED else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ok=unknown fi rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \ conftest$ac_exeext conftest.$ac_ext fi if test x"$ok" != xPTHREAD_CREATE_JOINABLE; then cat >>confdefs.h <<\_ACEOF #define PTHREAD_CREATE_JOINABLE $ok _ACEOF fi { echo "$as_me:$LINENO: result: ${ok}" >&5 echo "${ECHO_T}${ok}" >&6; } if test x"$ok" = xunknown; then { echo "$as_me:$LINENO: WARNING: we do not know how to create joinable pthreads" >&5 echo "$as_me: WARNING: we do not know how to create joinable pthreads" >&2;} fi { echo "$as_me:$LINENO: checking if more special flags are required for pthreads" >&5 echo $ECHO_N "checking if more special flags are required for pthreads... $ECHO_C" >&6; } flag=no case "${host_cpu}-${host_os}" in *-aix* | *-freebsd*) flag="-D_THREAD_SAFE";; *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";; esac { echo "$as_me:$LINENO: result: ${flag}" >&5 echo "${ECHO_T}${flag}" >&6; } if test "x$flag" != xno; then PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS" fi LIBS="$save_LIBS" CFLAGS="$save_CFLAGS" # More AIX lossage: must compile with cc_r # Extract the first word of "cc_r", so it can be a program name with args. set dummy cc_r; ac_word=$2 { echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; } if test "${ac_cv_prog_PTHREAD_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$PTHREAD_CC"; then ac_cv_prog_PTHREAD_CC="$PTHREAD_CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then ac_cv_prog_PTHREAD_CC="cc_r" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS test -z "$ac_cv_prog_PTHREAD_CC" && ac_cv_prog_PTHREAD_CC="${CC}" fi fi PTHREAD_CC=$ac_cv_prog_PTHREAD_CC if test -n "$PTHREAD_CC"; then { echo "$as_me:$LINENO: result: $PTHREAD_CC" >&5 echo "${ECHO_T}$PTHREAD_CC" >&6; } else { echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6; } fi else PTHREAD_CC="$CC" fi # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: if test x"$acx_pthread_ok" = xyes; then cat >>confdefs.h <<\_ACEOF #define HAVE_PTHREAD 1 _ACEOF : else acx_pthread_ok=no echo "ERROR: Pthread support not found."; exit 1 fi ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu LIBS="$PTHREAD_LIBS $LIBS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS -D_POSIX_PTHREAD_SEMANTICS" # Some checks for Solaris { echo "$as_me:$LINENO: checking for getsockname in -lsocket" >&5 echo $ECHO_N "checking for getsockname in -lsocket... $ECHO_C" >&6; } if test "${ac_cv_lib_socket_getsockname+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lsocket $LIBS" cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char getsockname (); int main () { return getsockname (); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_link") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest$ac_exeext && $as_test_x conftest$ac_exeext; then ac_cv_lib_socket_getsockname=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_lib_socket_getsockname=no fi rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { echo "$as_me:$LINENO: result: $ac_cv_lib_socket_getsockname" >&5 echo "${ECHO_T}$ac_cv_lib_socket_getsockname" >&6; } if test $ac_cv_lib_socket_getsockname = yes; then cat >>confdefs.h <<_ACEOF #define HAVE_LIBSOCKET 1 _ACEOF LIBS="-lsocket $LIBS" fi { echo "$as_me:$LINENO: checking for getaddrinfo in -lnsl" >&5 echo $ECHO_N "checking for getaddrinfo in -lnsl... $ECHO_C" >&6; } if test "${ac_cv_lib_nsl_getaddrinfo+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lnsl $LIBS" cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char getaddrinfo (); int main () { return getaddrinfo (); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_link") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest$ac_exeext && $as_test_x conftest$ac_exeext; then ac_cv_lib_nsl_getaddrinfo=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_lib_nsl_getaddrinfo=no fi rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { echo "$as_me:$LINENO: result: $ac_cv_lib_nsl_getaddrinfo" >&5 echo "${ECHO_T}$ac_cv_lib_nsl_getaddrinfo" >&6; } if test $ac_cv_lib_nsl_getaddrinfo = yes; then cat >>confdefs.h <<_ACEOF #define HAVE_LIBNSL 1 _ACEOF LIBS="-lnsl $LIBS" fi # Checks for header files. ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu { echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5 echo $ECHO_N "checking how to run the C preprocessor... $ECHO_C" >&6; } # On Suns, sometimes $CPP names a directory. if test -n "$CPP" && test -d "$CPP"; then CPP= fi if test -z "$CPP"; then if test "${ac_cv_prog_CPP+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else # Double quotes because CPP needs to be expanded for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp" do ac_preproc_ok=false for ac_c_preproc_warn_flag in '' yes do # Use a header file that comes with gcc, so configuring glibc # with a fresh cross-compiler works. # Prefer to if __STDC__ is defined, since # exists even on freestanding compilers. # On the NeXT, cc -E runs the code through the compiler's parser, # not just through cpp. "Syntax error" is here to catch this case. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #ifdef __STDC__ # include #else # include #endif Syntax error _ACEOF if { (ac_try="$ac_cpp conftest.$ac_ext" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } >/dev/null && { test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" || test ! -s conftest.err }; then : else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 # Broken: fails on valid input. continue fi rm -f conftest.err conftest.$ac_ext # OK, works on sane cases. Now check whether nonexistent headers # can be detected and how. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include _ACEOF if { (ac_try="$ac_cpp conftest.$ac_ext" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } >/dev/null && { test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" || test ! -s conftest.err }; then # Broken: success on invalid input. continue else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 # Passes both tests. ac_preproc_ok=: break fi rm -f conftest.err conftest.$ac_ext done # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. rm -f conftest.err conftest.$ac_ext if $ac_preproc_ok; then break fi done ac_cv_prog_CPP=$CPP fi CPP=$ac_cv_prog_CPP else ac_cv_prog_CPP=$CPP fi { echo "$as_me:$LINENO: result: $CPP" >&5 echo "${ECHO_T}$CPP" >&6; } ac_preproc_ok=false for ac_c_preproc_warn_flag in '' yes do # Use a header file that comes with gcc, so configuring glibc # with a fresh cross-compiler works. # Prefer to if __STDC__ is defined, since # exists even on freestanding compilers. # On the NeXT, cc -E runs the code through the compiler's parser, # not just through cpp. "Syntax error" is here to catch this case. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #ifdef __STDC__ # include #else # include #endif Syntax error _ACEOF if { (ac_try="$ac_cpp conftest.$ac_ext" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } >/dev/null && { test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" || test ! -s conftest.err }; then : else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 # Broken: fails on valid input. continue fi rm -f conftest.err conftest.$ac_ext # OK, works on sane cases. Now check whether nonexistent headers # can be detected and how. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include _ACEOF if { (ac_try="$ac_cpp conftest.$ac_ext" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } >/dev/null && { test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" || test ! -s conftest.err }; then # Broken: success on invalid input. continue else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 # Passes both tests. ac_preproc_ok=: break fi rm -f conftest.err conftest.$ac_ext done # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. rm -f conftest.err conftest.$ac_ext if $ac_preproc_ok; then : else { { echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check See \`config.log' for more details." >&5 echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check See \`config.log' for more details." >&2;} { (exit 1); exit 1; }; } fi ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu { echo "$as_me:$LINENO: checking for grep that handles long lines and -e" >&5 echo $ECHO_N "checking for grep that handles long lines and -e... $ECHO_C" >&6; } if test "${ac_cv_path_GREP+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else # Extract the first word of "grep ggrep" to use in msg output if test -z "$GREP"; then set dummy grep ggrep; ac_prog_name=$2 if test "${ac_cv_path_GREP+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_path_GREP_found=false # Loop through the user's path and test for each of PROGNAME-LIST as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_prog in grep ggrep; do for ac_exec_ext in '' $ac_executable_extensions; do ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext" { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue # Check for GNU ac_path_GREP and select it if it is found. # Check for GNU $ac_path_GREP case `"$ac_path_GREP" --version 2>&1` in *GNU*) ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;; *) ac_count=0 echo $ECHO_N "0123456789$ECHO_C" >"conftest.in" while : do cat "conftest.in" "conftest.in" >"conftest.tmp" mv "conftest.tmp" "conftest.in" cp "conftest.in" "conftest.nl" echo 'GREP' >> "conftest.nl" "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break ac_count=`expr $ac_count + 1` if test $ac_count -gt ${ac_path_GREP_max-0}; then # Best one so far, save it but keep looking for a better one ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_max=$ac_count fi # 10*(2^10) chars as input seems more than enough test $ac_count -gt 10 && break done rm -f conftest.in conftest.tmp conftest.nl conftest.out;; esac $ac_path_GREP_found && break 3 done done done IFS=$as_save_IFS fi GREP="$ac_cv_path_GREP" if test -z "$GREP"; then { { echo "$as_me:$LINENO: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5 echo "$as_me: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;} { (exit 1); exit 1; }; } fi else ac_cv_path_GREP=$GREP fi fi { echo "$as_me:$LINENO: result: $ac_cv_path_GREP" >&5 echo "${ECHO_T}$ac_cv_path_GREP" >&6; } GREP="$ac_cv_path_GREP" { echo "$as_me:$LINENO: checking for egrep" >&5 echo $ECHO_N "checking for egrep... $ECHO_C" >&6; } if test "${ac_cv_path_EGREP+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if echo a | $GREP -E '(a|b)' >/dev/null 2>&1 then ac_cv_path_EGREP="$GREP -E" else # Extract the first word of "egrep" to use in msg output if test -z "$EGREP"; then set dummy egrep; ac_prog_name=$2 if test "${ac_cv_path_EGREP+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_path_EGREP_found=false # Loop through the user's path and test for each of PROGNAME-LIST as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_prog in egrep; do for ac_exec_ext in '' $ac_executable_extensions; do ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext" { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue # Check for GNU ac_path_EGREP and select it if it is found. # Check for GNU $ac_path_EGREP case `"$ac_path_EGREP" --version 2>&1` in *GNU*) ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;; *) ac_count=0 echo $ECHO_N "0123456789$ECHO_C" >"conftest.in" while : do cat "conftest.in" "conftest.in" >"conftest.tmp" mv "conftest.tmp" "conftest.in" cp "conftest.in" "conftest.nl" echo 'EGREP' >> "conftest.nl" "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break ac_count=`expr $ac_count + 1` if test $ac_count -gt ${ac_path_EGREP_max-0}; then # Best one so far, save it but keep looking for a better one ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_max=$ac_count fi # 10*(2^10) chars as input seems more than enough test $ac_count -gt 10 && break done rm -f conftest.in conftest.tmp conftest.nl conftest.out;; esac $ac_path_EGREP_found && break 3 done done done IFS=$as_save_IFS fi EGREP="$ac_cv_path_EGREP" if test -z "$EGREP"; then { { echo "$as_me:$LINENO: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5 echo "$as_me: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;} { (exit 1); exit 1; }; } fi else ac_cv_path_EGREP=$EGREP fi fi fi { echo "$as_me:$LINENO: result: $ac_cv_path_EGREP" >&5 echo "${ECHO_T}$ac_cv_path_EGREP" >&6; } EGREP="$ac_cv_path_EGREP" { echo "$as_me:$LINENO: checking for ANSI C header files" >&5 echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6; } if test "${ac_cv_header_stdc+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include #include #include #include int main () { ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (ac_try="$ac_compile" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_compile") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest.$ac_objext; then ac_cv_header_stdc=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_header_stdc=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test $ac_cv_header_stdc = yes; then # SunOS 4.x string.h does not declare mem*, contrary to ANSI. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include _ACEOF if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | $EGREP "memchr" >/dev/null 2>&1; then : else ac_cv_header_stdc=no fi rm -f conftest* fi if test $ac_cv_header_stdc = yes; then # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include _ACEOF if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | $EGREP "free" >/dev/null 2>&1; then : else ac_cv_header_stdc=no fi rm -f conftest* fi if test $ac_cv_header_stdc = yes; then # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. if test "$cross_compiling" = yes; then : else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include #include #if ((' ' & 0x0FF) == 0x020) # define ISLOWER(c) ('a' <= (c) && (c) <= 'z') # define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) #else # define ISLOWER(c) \ (('a' <= (c) && (c) <= 'i') \ || ('j' <= (c) && (c) <= 'r') \ || ('s' <= (c) && (c) <= 'z')) # define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) #endif #define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) int main () { int i; for (i = 0; i < 256; i++) if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) return 2; return 0; } _ACEOF rm -f conftest$ac_exeext if { (ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_link") 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='./conftest$ac_exeext' { (case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_try") 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then : else echo "$as_me: program exited with status $ac_status" >&5 echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ( exit $ac_status ) ac_cv_header_stdc=no fi rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext fi fi fi { echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5 echo "${ECHO_T}$ac_cv_header_stdc" >&6; } if test $ac_cv_header_stdc = yes; then cat >>confdefs.h <<\_ACEOF #define STDC_HEADERS 1 _ACEOF fi # On IRIX 5.3, sys/types and inttypes.h are conflicting. for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ inttypes.h stdint.h unistd.h do as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` { echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; } if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ $ac_includes_default #include <$ac_header> _ACEOF rm -f conftest.$ac_objext if { (ac_try="$ac_compile" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_compile") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest.$ac_objext; then eval "$as_ac_Header=yes" else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 eval "$as_ac_Header=no" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi ac_res=`eval echo '${'$as_ac_Header'}'` { echo "$as_me:$LINENO: result: $ac_res" >&5 echo "${ECHO_T}$ac_res" >&6; } if test `eval echo '${'$as_ac_Header'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 _ACEOF fi done for ac_header in limits.h err.h paths.h do as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then { echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; } if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then echo $ECHO_N "(cached) $ECHO_C" >&6 fi ac_res=`eval echo '${'$as_ac_Header'}'` { echo "$as_me:$LINENO: result: $ac_res" >&5 echo "${ECHO_T}$ac_res" >&6; } else # Is the header compilable? { echo "$as_me:$LINENO: checking $ac_header usability" >&5 echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6; } cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ $ac_includes_default #include <$ac_header> _ACEOF rm -f conftest.$ac_objext if { (ac_try="$ac_compile" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_compile") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest.$ac_objext; then ac_header_compiler=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_header_compiler=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext { echo "$as_me:$LINENO: result: $ac_header_compiler" >&5 echo "${ECHO_T}$ac_header_compiler" >&6; } # Is the header present? { echo "$as_me:$LINENO: checking $ac_header presence" >&5 echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6; } cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include <$ac_header> _ACEOF if { (ac_try="$ac_cpp conftest.$ac_ext" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } >/dev/null && { test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" || test ! -s conftest.err }; then ac_header_preproc=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_header_preproc=no fi rm -f conftest.err conftest.$ac_ext { echo "$as_me:$LINENO: result: $ac_header_preproc" >&5 echo "${ECHO_T}$ac_header_preproc" >&6; } # So? What about this header? case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in yes:no: ) { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5 echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5 echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;} ac_header_preproc=yes ;; no:yes:* ) { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5 echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5 echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5 echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5 echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5 echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5 echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;} ( cat <<\_ASBOX ## ---------------------------------- ## ## Report this to stef@memberwebs.com ## ## ---------------------------------- ## _ASBOX ) | sed "s/^/$as_me: WARNING: /" >&2 ;; esac { echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; } if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then echo $ECHO_N "(cached) $ECHO_C" >&6 else eval "$as_ac_Header=\$ac_header_preproc" fi ac_res=`eval echo '${'$as_ac_Header'}'` { echo "$as_me:$LINENO: result: $ac_res" >&5 echo "${ECHO_T}$ac_res" >&6; } fi if test `eval echo '${'$as_ac_Header'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 _ACEOF fi done for ac_header in unistd.h stdio.h stddef.h fcntl.h stdlib.h assert.h errno.h stdarg.h string.h netdb.h do as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then { echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; } if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then echo $ECHO_N "(cached) $ECHO_C" >&6 fi ac_res=`eval echo '${'$as_ac_Header'}'` { echo "$as_me:$LINENO: result: $ac_res" >&5 echo "${ECHO_T}$ac_res" >&6; } else # Is the header compilable? { echo "$as_me:$LINENO: checking $ac_header usability" >&5 echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6; } cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ $ac_includes_default #include <$ac_header> _ACEOF rm -f conftest.$ac_objext if { (ac_try="$ac_compile" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_compile") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest.$ac_objext; then ac_header_compiler=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_header_compiler=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext { echo "$as_me:$LINENO: result: $ac_header_compiler" >&5 echo "${ECHO_T}$ac_header_compiler" >&6; } # Is the header present? { echo "$as_me:$LINENO: checking $ac_header presence" >&5 echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6; } cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include <$ac_header> _ACEOF if { (ac_try="$ac_cpp conftest.$ac_ext" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } >/dev/null && { test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" || test ! -s conftest.err }; then ac_header_preproc=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_header_preproc=no fi rm -f conftest.err conftest.$ac_ext { echo "$as_me:$LINENO: result: $ac_header_preproc" >&5 echo "${ECHO_T}$ac_header_preproc" >&6; } # So? What about this header? case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in yes:no: ) { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5 echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5 echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;} ac_header_preproc=yes ;; no:yes:* ) { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5 echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5 echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5 echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5 echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5 echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5 echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;} ( cat <<\_ASBOX ## ---------------------------------- ## ## Report this to stef@memberwebs.com ## ## ---------------------------------- ## _ASBOX ) | sed "s/^/$as_me: WARNING: /" >&2 ;; esac { echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; } if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then echo $ECHO_N "(cached) $ECHO_C" >&6 else eval "$as_ac_Header=\$ac_header_preproc" fi ac_res=`eval echo '${'$as_ac_Header'}'` { echo "$as_me:$LINENO: result: $ac_res" >&5 echo "${ECHO_T}$ac_res" >&6; } fi if test `eval echo '${'$as_ac_Header'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 _ACEOF else echo "ERROR: Required C header missing"; exit 1 fi done # Check for linux type transparent proxy support for ac_header in linux/netfilter_ipv4.h do as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` { echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6; } if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #ifdef HAVE_LIMITS_H #include #endif #include <$ac_header> _ACEOF rm -f conftest.$ac_objext if { (ac_try="$ac_compile" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_compile") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest.$ac_objext; then eval "$as_ac_Header=yes" else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 eval "$as_ac_Header=no" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi ac_res=`eval echo '${'$as_ac_Header'}'` { echo "$as_me:$LINENO: result: $ac_res" >&5 echo "${ECHO_T}$ac_res" >&6; } if test `eval echo '${'$as_ac_Header'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 _ACEOF cat >>confdefs.h <<\_ACEOF #define LINUX_TRANSPARENT_PROXY 1 _ACEOF fi done # Checks for typedefs, structures, and compiler characteristics. { echo "$as_me:$LINENO: checking for an ANSI C-conforming const" >&5 echo $ECHO_N "checking for an ANSI C-conforming const... $ECHO_C" >&6; } if test "${ac_cv_c_const+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ int main () { /* FIXME: Include the comments suggested by Paul. */ #ifndef __cplusplus /* Ultrix mips cc rejects this. */ typedef int charset[2]; const charset cs; /* SunOS 4.1.1 cc rejects this. */ char const *const *pcpcc; char **ppc; /* NEC SVR4.0.2 mips cc rejects this. */ struct point {int x, y;}; static struct point const zero = {0,0}; /* AIX XL C 1.02.0.0 rejects this. It does not let you subtract one const X* pointer from another in an arm of an if-expression whose if-part is not a constant expression */ const char *g = "string"; pcpcc = &g + (g ? g-g : 0); /* HPUX 7.0 cc rejects these. */ ++pcpcc; ppc = (char**) pcpcc; pcpcc = (char const *const *) ppc; { /* SCO 3.2v4 cc rejects this. */ char *t; char const *s = 0 ? (char *) 0 : (char const *) 0; *t++ = 0; if (s) return 0; } { /* Someone thinks the Sun supposedly-ANSI compiler will reject this. */ int x[] = {25, 17}; const int *foo = &x[0]; ++foo; } { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */ typedef const int *iptr; iptr p = 0; ++p; } { /* AIX XL C 1.02.0.0 rejects this saying "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */ struct s { int j; const int *ap[3]; }; struct s *b; b->j = 5; } { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */ const int foo = 10; if (!foo) return 0; } return !cs[0] && !zero.x; #endif ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (ac_try="$ac_compile" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_compile") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest.$ac_objext; then ac_cv_c_const=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_c_const=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi { echo "$as_me:$LINENO: result: $ac_cv_c_const" >&5 echo "${ECHO_T}$ac_cv_c_const" >&6; } if test $ac_cv_c_const = no; then cat >>confdefs.h <<\_ACEOF #define const _ACEOF fi { echo "$as_me:$LINENO: checking for size_t" >&5 echo $ECHO_N "checking for size_t... $ECHO_C" >&6; } if test "${ac_cv_type_size_t+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ $ac_includes_default typedef size_t ac__type_new_; int main () { if ((ac__type_new_ *) 0) return 0; if (sizeof (ac__type_new_)) return 0; ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (ac_try="$ac_compile" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_compile") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest.$ac_objext; then ac_cv_type_size_t=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_type_size_t=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi { echo "$as_me:$LINENO: result: $ac_cv_type_size_t" >&5 echo "${ECHO_T}$ac_cv_type_size_t" >&6; } if test $ac_cv_type_size_t = yes; then : else cat >>confdefs.h <<_ACEOF #define size_t unsigned int _ACEOF fi # We use error checking mutexes whenever possible { echo "$as_me:$LINENO: checking whether PTHREAD_MUTEX_ERRORCHECK_NP is declared" >&5 echo $ECHO_N "checking whether PTHREAD_MUTEX_ERRORCHECK_NP is declared... $ECHO_C" >&6; } if test "${ac_cv_have_decl_PTHREAD_MUTEX_ERRORCHECK_NP+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include int main () { #ifndef PTHREAD_MUTEX_ERRORCHECK_NP (void) PTHREAD_MUTEX_ERRORCHECK_NP; #endif ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (ac_try="$ac_compile" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_compile") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest.$ac_objext; then ac_cv_have_decl_PTHREAD_MUTEX_ERRORCHECK_NP=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_have_decl_PTHREAD_MUTEX_ERRORCHECK_NP=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi { echo "$as_me:$LINENO: result: $ac_cv_have_decl_PTHREAD_MUTEX_ERRORCHECK_NP" >&5 echo "${ECHO_T}$ac_cv_have_decl_PTHREAD_MUTEX_ERRORCHECK_NP" >&6; } if test $ac_cv_have_decl_PTHREAD_MUTEX_ERRORCHECK_NP = yes; then cat >>confdefs.h <<\_ACEOF #define HAVE_ERR_MUTEX 1 _ACEOF else { echo "$as_me:$LINENO: checking whether PTHREAD_MUTEX_ERRORCHECK is declared" >&5 echo $ECHO_N "checking whether PTHREAD_MUTEX_ERRORCHECK is declared... $ECHO_C" >&6; } if test "${ac_cv_have_decl_PTHREAD_MUTEX_ERRORCHECK+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include int main () { #ifndef PTHREAD_MUTEX_ERRORCHECK (void) PTHREAD_MUTEX_ERRORCHECK; #endif ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (ac_try="$ac_compile" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_compile") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest.$ac_objext; then ac_cv_have_decl_PTHREAD_MUTEX_ERRORCHECK=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_have_decl_PTHREAD_MUTEX_ERRORCHECK=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi { echo "$as_me:$LINENO: result: $ac_cv_have_decl_PTHREAD_MUTEX_ERRORCHECK" >&5 echo "${ECHO_T}$ac_cv_have_decl_PTHREAD_MUTEX_ERRORCHECK" >&6; } if test $ac_cv_have_decl_PTHREAD_MUTEX_ERRORCHECK = yes; then cat >>confdefs.h <<\_ACEOF #define HAVE_ERR_MUTEX 2 _ACEOF fi fi # Required Variables { echo "$as_me:$LINENO: checking for struct tm.tm_gmtoff" >&5 echo $ECHO_N "checking for struct tm.tm_gmtoff... $ECHO_C" >&6; } if test "${ac_cv_member_struct_tm_tm_gmtoff+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include int main () { static struct tm ac_aggr; if (ac_aggr.tm_gmtoff) return 0; ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (ac_try="$ac_compile" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_compile") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest.$ac_objext; then ac_cv_member_struct_tm_tm_gmtoff=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include int main () { static struct tm ac_aggr; if (sizeof ac_aggr.tm_gmtoff) return 0; ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (ac_try="$ac_compile" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_compile") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest.$ac_objext; then ac_cv_member_struct_tm_tm_gmtoff=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_member_struct_tm_tm_gmtoff=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi { echo "$as_me:$LINENO: result: $ac_cv_member_struct_tm_tm_gmtoff" >&5 echo "${ECHO_T}$ac_cv_member_struct_tm_tm_gmtoff" >&6; } if test $ac_cv_member_struct_tm_tm_gmtoff = yes; then cat >>confdefs.h <<\_ACEOF #define HAVE_TM_GMTOFF 1 _ACEOF fi for ac_global in __argv do ac_tr_global=HAVE_`echo $ac_global | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` { echo "$as_me:$LINENO: checking for global variable ${ac_global}" >&5 echo $ECHO_N "checking for global variable ${ac_global}... $ECHO_C" >&6; } if { as_var=ac_cv_global_$ac_global; eval "test \"\${$as_var+set}\" = set"; }; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* no includes */ int main () { extern long int $ac_global; exit((int)$ac_global) ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_link") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest$ac_exeext && $as_test_x conftest$ac_exeext; then eval "ac_cv_global_${ac_global}=yes" else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 eval "ac_cv_global_${ac_global}=no" fi rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \ conftest$ac_exeext conftest.$ac_ext fi if eval "test \"`echo '$ac_cv_global_'$ac_global`\" = yes"; then { echo "$as_me:$LINENO: result: yes" >&5 echo "${ECHO_T}yes" >&6; } cat >>confdefs.h <<_ACEOF #define $ac_tr_global 1 _ACEOF else { echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6; } fi done # Required Functions for ac_func in memset strerror malloc realloc getopt strchr tolower getaddrinfo do as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh` { echo "$as_me:$LINENO: checking for $ac_func" >&5 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6; } if { as_var=$as_ac_var; eval "test \"\${$as_var+set}\" = set"; }; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* Define $ac_func to an innocuous variant, in case declares $ac_func. For example, HP-UX 11i declares gettimeofday. */ #define $ac_func innocuous_$ac_func /* System header to define __stub macros and hopefully few prototypes, which can conflict with char $ac_func (); below. Prefer to if __STDC__ is defined, since exists even on freestanding compilers. */ #ifdef __STDC__ # include #else # include #endif #undef $ac_func /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char $ac_func (); /* The GNU C library defines this for functions which it implements to always fail with ENOSYS. Some functions are actually named something starting with __ and the normal name is an alias. */ #if defined __stub_$ac_func || defined __stub___$ac_func choke me #endif int main () { return $ac_func (); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_link") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest$ac_exeext && $as_test_x conftest$ac_exeext; then eval "$as_ac_var=yes" else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 eval "$as_ac_var=no" fi rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \ conftest$ac_exeext conftest.$ac_ext fi ac_res=`eval echo '${'$as_ac_var'}'` { echo "$as_me:$LINENO: result: $ac_res" >&5 echo "${ECHO_T}$ac_res" >&6; } if test `eval echo '${'$as_ac_var'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1 _ACEOF else echo "ERROR: Required function missing"; exit 1 fi done for ac_func in strlwr strlcat strlcpy strncat strncpy strcasestr setenv daemon do as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh` { echo "$as_me:$LINENO: checking for $ac_func" >&5 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6; } if { as_var=$as_ac_var; eval "test \"\${$as_var+set}\" = set"; }; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* Define $ac_func to an innocuous variant, in case declares $ac_func. For example, HP-UX 11i declares gettimeofday. */ #define $ac_func innocuous_$ac_func /* System header to define __stub macros and hopefully few prototypes, which can conflict with char $ac_func (); below. Prefer to if __STDC__ is defined, since exists even on freestanding compilers. */ #ifdef __STDC__ # include #else # include #endif #undef $ac_func /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char $ac_func (); /* The GNU C library defines this for functions which it implements to always fail with ENOSYS. Some functions are actually named something starting with __ and the normal name is an alias. */ #if defined __stub_$ac_func || defined __stub___$ac_func choke me #endif int main () { return $ac_func (); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_link") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest$ac_exeext && $as_test_x conftest$ac_exeext; then eval "$as_ac_var=yes" else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 eval "$as_ac_var=no" fi rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \ conftest$ac_exeext conftest.$ac_ext fi ac_res=`eval echo '${'$as_ac_var'}'` { echo "$as_me:$LINENO: result: $ac_res" >&5 echo "${ECHO_T}$ac_res" >&6; } if test `eval echo '${'$as_ac_var'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1 _ACEOF fi done for ac_func in getline getdelim flockfile do as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh` { echo "$as_me:$LINENO: checking for $ac_func" >&5 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6; } if { as_var=$as_ac_var; eval "test \"\${$as_var+set}\" = set"; }; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* Define $ac_func to an innocuous variant, in case declares $ac_func. For example, HP-UX 11i declares gettimeofday. */ #define $ac_func innocuous_$ac_func /* System header to define __stub macros and hopefully few prototypes, which can conflict with char $ac_func (); below. Prefer to if __STDC__ is defined, since exists even on freestanding compilers. */ #ifdef __STDC__ # include #else # include #endif #undef $ac_func /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char $ac_func (); /* The GNU C library defines this for functions which it implements to always fail with ENOSYS. Some functions are actually named something starting with __ and the normal name is an alias. */ #if defined __stub_$ac_func || defined __stub___$ac_func choke me #endif int main () { return $ac_func (); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (ac_try="$ac_link" case "(($ac_try" in *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; *) ac_try_echo=$ac_try;; esac eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 (eval "$ac_link") 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { test -z "$ac_c_werror_flag" || test ! -s conftest.err } && test -s conftest$ac_exeext && $as_test_x conftest$ac_exeext; then eval "$as_ac_var=yes" else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 eval "$as_ac_var=no" fi rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \ conftest$ac_exeext conftest.$ac_ext fi ac_res=`eval echo '${'$as_ac_var'}'` { echo "$as_me:$LINENO: result: $ac_res" >&5 echo "${ECHO_T}$ac_res" >&6; } if test `eval echo '${'$as_ac_var'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1 _ACEOF fi done # DMALLOC memory debugging # Check whether --enable-dmalloc was given. if test "${enable_dmalloc+set}" = set; then enableval=$enable_dmalloc; fi if test "$enable_dmalloc" = "yes"; then { echo "$as_me:$LINENO: checking for malloc in -ldmalloc" >&5 echo $ECHO_N "checking for malloc in -ldmalloc... $ECHO_C" >&6; } if test "${ac_cv_lib_dmalloc_malloc+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-ldmalloc $LIBS" cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. 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So we exec the FD to /dev/null, # effectively closing config.log, so it can be properly (re)opened and # appended to by config.status. When coming back to configure, we # need to make the FD available again. if test "$no_create" != yes; then ac_cs_success=: ac_config_status_args= test "$silent" = yes && ac_config_status_args="$ac_config_status_args --quiet" exec 5>/dev/null $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false exec 5>>config.log # Use ||, not &&, to avoid exiting from the if with $? = 1, which # would make configure fail if this is the last instruction. $ac_cs_success || { (exit 1); exit 1; } fi clamsmtp-1.10/AUTHORS0000644000175000017500000000115210626144473011252 00000000000000AUTHOR: Stef Walter CONTRIBUTORS: Andreas Steinmetz Rubio Vaughan Olivier Beyssac PATCHES: Berk D. Demir João Carlos Mendes Luís Jasper Slits Yamamoto Takao Ben Mesman Chris Mason Laurent Papier Piotr Klaban Greg Hackney Billy B. Bilano Loic Le Loarer clamsmtp-1.10/COPYING0000644000175000017500000000276510626145172011245 00000000000000 Copyright (c) 2004, Stefan Walter All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * The names of contributors to this software may not be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. clamsmtp-1.10/ChangeLog0000644000175000017500000001261411032210312011733 000000000000001.10 [2007-06-30] - Make the XFOWARD HELO available as a environment variable in scripts. [Glenn Matthys] - Send an RSET to the server after filter fails an email. 1.9 [2007-05-28] - Resolve any DNS name for each connection. - Use my real name 'Stefan Walter' See: http://memberwebs.com/nielsen/ 1.8 [2006-09-05] - Fix dumb bug with 'Action' config line - Added support for setting the REMOTE variable when an XFORWARD command is seen. 1.7 [2006-08-10] - Fix crasher when connection goes down unexpectedly. - Add support for letting virus emails pass. - Better message for 'busy' [Akihiro Sagawa] 1.6 [2005-10-21] - IMPORTANT: Removed support for listening on ports under < 1024 See: http://memberwebs.com/swalter/software/clamsmtp/faq.html#low-ports - Support embedded NULLs in email data. - Fix problems with not listening properly when in daemon mode - Fix warnings when compiled with gcc 4.0 - Handle empty addresses properly in logs. - Don't let exchange send it's strange binary data through the proxy - More Solaris fixes :( - Don't reject emails when server is overloaded or errors. - Don't reject emails when starting the filter command fails. 1.5 [2005-07-31] - Handle condition of server refusing data transfers more gracefully. - Less chatty when setting timeouts fail - Drop privileges after binding to port. Allows listening on ports < 1024 - Ported to Solaris - Fix problem with binding to certain 'long' addresses 1.4.1 [2005-04-15] - Fixed bug (introduced in 1.4) when Header was not present. 1.4 [2005-03-24] - Documentation fixes [Sean Franklin] - Don't leak file descriptors when clamsmtpd can't connect to outgoing SMTP server [Chris Mason] - Now accepts special format arguments on 'Header' line [Olivier Beyssac] - Supress weird warnings when looking up names of local unix connections. 1.3 [2005-01-27] - Fixed crasher when outgoing connection couldn't be established - Removed erroneous chown line from clamsmtpd.sh 1.2 [2004-12-02] - XCLIENT support - Drop XCLIENT commands coming in from clients for security. - Added the sample virus_action.sh script to the distribution - Documentation fixes [Olivier Beyssac] 1.1 [2004-10-30] - Added CLIENT and SERVER variables to VirusAction script environment. - Even better logging for network errors. - Print out clamsmtp version in debug logs - Allow configuration of server keep alives (NOOPs). Default to none 1.0 [2004-10-21] - Removed user option from startup script (use User config option) - Don't send lines that are too long to syslog [Ben Mesman] - Stable release 0.9.6 [2004-10-10] - Fixed problem when filtering the last of a list of EHLO responses - Send NOOPs to the server when receiving data slowly from client to prevent timeouts on the server side. - Made the log line always keep the status, rather than dropping of the end in the case of many recipeints. 0.9.5 [2004-10-01] - Fixed problems with the select zeroing out timeouts. - Added support for setting the PidFile from the config file 0.9 [2004-09-23] - Don't quit when too many threads created - Restructured smtp passthru system so it can be used by other apps - Better IO and SMTP parsing - Changed default header to be similar to Amavis - Compiles and runs on systems without error checking mutexes - Ability to drop privileges and run as a different user [Rubio Vaughan] - Fixed config file bugs - Virus Actions. Run a script every time a virus is found. - By default don't use ClamAV sessions. This fixes several stability problems that were being experienced with clamd. 0.8 [2004-09-07] - clamsmtpd now uses a configuration file - Transparent proxy support [Andreas Steinmetz] - Compile option -Wall only enabled on debug builds - Sample script changed due to configuartion file - Fixed other minor bugs 0.7 [2004-08-29] - Added support for ESMTP [Andreas Steinmetz] - Fixed crash when too many connections established - Announce ourselves as 'clamsmtp' in EHLO/HELO responses which fixes 'loopback' problems with certain versions of Postfix 1.x - Better IO performance under heavy load - Fixed most warnings when compiled with -Wall - Fixed other minor bugs 0.6 [2004-08-17] - Proper adding of customized header [Berk D. Demir] - Fixes to documentation [Jasper Slits] 0.5 [2004-08-02] - Announce ourselves as 'clamsmtp' in banner to prevent loop warnings - Fixed endless loop that occurred on failure to connect out [João Carlos Mendes Luís] - Added option for leaving all files in temp directory (debugging purposes) - Prints version number when run with -v 0.4 [2004-07-22] - Option for quarantining files with viruses - Fixed problem with returning wrong SMTP error code - Handling timeouts properly - Fixed stupid problem with sockets not getting closed properly 0.3 [2004-07-20] - Small log format changes - When no port specified for out address, connect back to original IP - Bug fixes to address parsing and formatting code - Fixed problem with AV header not being added [Yamamoto Takao] - Send our own initial banner to prevent complaints about loops 0.2 [2004-07-09] - Initial public release - Sliently dropping viruses is the default - Limit to old SMTP (not ESMTP) - Added logging - Many bug fixes - Adds a header to email 0.1 [2004-07-08] - Initial implementation clamsmtp-1.10/INSTALL0000644000175000017500000002203010577653461011240 00000000000000Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. This file is free documentation; the Free Software Foundation gives unlimited permission to copy, distribute and modify it. Basic Installation ================== These are generic installation instructions. The `configure' shell script attempts to guess correct values for various system-dependent variables used during compilation. It uses those values to create a `Makefile' in each directory of the package. It may also create one or more `.h' files containing system-dependent definitions. Finally, it creates a shell script `config.status' that you can run in the future to recreate the current configuration, and a file `config.log' containing compiler output (useful mainly for debugging `configure'). It can also use an optional file (typically called `config.cache' and enabled with `--cache-file=config.cache' or simply `-C') that saves the results of its tests to speed up reconfiguring. (Caching is disabled by default to prevent problems with accidental use of stale cache files.) If you need to do unusual things to compile the package, please try to figure out how `configure' could check whether to do them, and mail diffs or instructions to the address given in the `README' so they can be considered for the next release. If you are using the cache, and at some point `config.cache' contains results you don't want to keep, you may remove or edit it. The file `configure.ac' (or `configure.in') is used to create `configure' by a program called `autoconf'. You only need `configure.ac' if you want to change it or regenerate `configure' using a newer version of `autoconf'. The simplest way to compile this package is: 1. `cd' to the directory containing the package's source code and type `./configure' to configure the package for your system. If you're using `csh' on an old version of System V, you might need to type `sh ./configure' instead to prevent `csh' from trying to execute `configure' itself. Running `configure' takes awhile. While running, it prints some messages telling which features it is checking for. 2. Type `make' to compile the package. 3. Optionally, type `make check' to run any self-tests that come with the package. 4. Type `make install' to install the programs and any data files and documentation. 5. You can remove the program binaries and object files from the source code directory by typing `make clean'. To also remove the files that `configure' created (so you can compile the package for a different kind of computer), type `make distclean'. There is also a `make maintainer-clean' target, but that is intended mainly for the package's developers. If you use it, you may have to get all sorts of other programs in order to regenerate files that came with the distribution. Compilers and Options ===================== Some systems require unusual options for compilation or linking that the `configure' script does not know about. Run `./configure --help' for details on some of the pertinent environment variables. You can give `configure' initial values for configuration parameters by setting variables in the command line or in the environment. Here is an example: ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix *Note Defining Variables::, for more details. Compiling For Multiple Architectures ==================================== You can compile the package for more than one kind of computer at the same time, by placing the object files for each architecture in their own directory. To do this, you must use a version of `make' that supports the `VPATH' variable, such as GNU `make'. `cd' to the directory where you want the object files and executables to go and run the `configure' script. `configure' automatically checks for the source code in the directory that `configure' is in and in `..'. 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Defining Variables ================== Variables not defined in a site shell script can be set in the environment passed to `configure'. However, some packages may run configure again during the build, and the customized values of these variables may be lost. In order to avoid this problem, you should set them in the `configure' command line, using `VAR=value'. For example: ./configure CC=/usr/local2/bin/gcc will cause the specified gcc to be used as the C compiler (unless it is overridden in the site shell script). `configure' Invocation ====================== `configure' recognizes the following options to control how it operates. `--help' `-h' Print a summary of the options to `configure', and exit. `--version' `-V' Print the version of Autoconf used to generate the `configure' script, and exit. `--cache-file=FILE' Enable the cache: use and save the results of the tests in FILE, traditionally `config.cache'. 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Run `configure --help' for more details. clamsmtp-1.10/NEWS0000644000175000017500000000001510577653461010705 00000000000000See ChangeLogclamsmtp-1.10/config.guess0000755000175000017500000012706110707444443012532 00000000000000#! /bin/sh # Attempt to guess a canonical system name. # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, # 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, # Inc. timestamp='2007-07-22' # This file is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^ The alpha \(.*\) processor.*$/\1/p' | head -n 1` case "$ALPHA_CPU_TYPE" in "EV4 (21064)") UNAME_MACHINE="alpha" ;; "EV4.5 (21064)") UNAME_MACHINE="alpha" ;; "LCA4 (21066/21068)") UNAME_MACHINE="alpha" ;; "EV5 (21164)") UNAME_MACHINE="alphaev5" ;; "EV5.6 (21164A)") UNAME_MACHINE="alphaev56" ;; "EV5.6 (21164PC)") UNAME_MACHINE="alphapca56" ;; "EV5.7 (21164PC)") UNAME_MACHINE="alphapca57" ;; "EV6 (21264)") UNAME_MACHINE="alphaev6" ;; "EV6.7 (21264A)") UNAME_MACHINE="alphaev67" ;; "EV6.8CB (21264C)") UNAME_MACHINE="alphaev68" ;; "EV6.8AL (21264B)") UNAME_MACHINE="alphaev68" ;; "EV6.8CX (21264D)") UNAME_MACHINE="alphaev68" ;; "EV6.9A (21264/EV69A)") UNAME_MACHINE="alphaev69" ;; "EV7 (21364)") UNAME_MACHINE="alphaev7" ;; "EV7.9 (21364A)") UNAME_MACHINE="alphaev79" ;; esac # A Pn.n version is a patched version. # A Vn.n version is a released version. # A Tn.n version is a released field test version. # A Xn.n version is an unreleased experimental baselevel. # 1.2 uses "1.2" for uname -r. echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` exit ;; Alpha\ *:Windows_NT*:*) # How do we know it's Interix rather than the generic POSIX subsystem? # Should we change UNAME_MACHINE based on the output of uname instead # of the specific Alpha model? echo alpha-pc-interix exit ;; 21064:Windows_NT:50:3) echo alpha-dec-winnt3.5 exit ;; Amiga*:UNIX_System_V:4.0:*) echo m68k-unknown-sysv4 exit ;; *:[Aa]miga[Oo][Ss]:*:*) echo ${UNAME_MACHINE}-unknown-amigaos exit ;; *:[Mm]orph[Oo][Ss]:*:*) echo ${UNAME_MACHINE}-unknown-morphos exit ;; *:OS/390:*:*) echo i370-ibm-openedition exit ;; *:z/VM:*:*) echo s390-ibm-zvmoe exit ;; *:OS400:*:*) echo powerpc-ibm-os400 exit ;; arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*) echo arm-acorn-riscix${UNAME_RELEASE} exit ;; arm:riscos:*:*|arm:RISCOS:*:*) echo arm-unknown-riscos exit ;; SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*) echo hppa1.1-hitachi-hiuxmpp exit ;; Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*) # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE. if test "`(/bin/universe) 2>/dev/null`" = att ; then echo pyramid-pyramid-sysv3 else echo pyramid-pyramid-bsd fi exit ;; NILE*:*:*:dcosx) echo pyramid-pyramid-svr4 exit ;; DRS?6000:unix:4.0:6*) echo sparc-icl-nx6 exit ;; DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*) case `/usr/bin/uname -p` in sparc) echo sparc-icl-nx7; exit ;; esac ;; sun4H:SunOS:5.*:*) echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*) echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*) echo i386-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; sun4*:SunOS:6*:*) # According to config.sub, this is the proper way to canonicalize # SunOS6. Hard to guess exactly what SunOS6 will be like, but # it's likely to be more like Solaris than SunOS4. echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; sun4*:SunOS:*:*) case "`/usr/bin/arch -k`" in Series*|S4*) UNAME_RELEASE=`uname -v` ;; esac # Japanese Language versions have a version number like `4.1.3-JL'. echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'` exit ;; sun3*:SunOS:*:*) echo m68k-sun-sunos${UNAME_RELEASE} exit ;; sun*:*:4.2BSD:*) UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null` test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3 case "`/bin/arch`" in sun3) echo m68k-sun-sunos${UNAME_RELEASE} ;; sun4) echo sparc-sun-sunos${UNAME_RELEASE} ;; esac exit ;; aushp:SunOS:*:*) echo sparc-auspex-sunos${UNAME_RELEASE} exit ;; # The situation for MiNT is a little confusing. The machine name # can be virtually everything (everything which is not # "atarist" or "atariste" at least should have a processor # > m68000). The system name ranges from "MiNT" over "FreeMiNT" # to the lowercase version "mint" (or "freemint"). Finally # the system name "TOS" denotes a system which is actually not # MiNT. But MiNT is downward compatible to TOS, so this should # be no problem. atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*) echo m68k-atari-mint${UNAME_RELEASE} exit ;; atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*) echo m68k-atari-mint${UNAME_RELEASE} exit ;; *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*) echo m68k-atari-mint${UNAME_RELEASE} exit ;; milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*) echo m68k-milan-mint${UNAME_RELEASE} exit ;; hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*) echo m68k-hades-mint${UNAME_RELEASE} exit ;; *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*) echo m68k-unknown-mint${UNAME_RELEASE} exit ;; m68k:machten:*:*) echo m68k-apple-machten${UNAME_RELEASE} exit ;; powerpc:machten:*:*) echo powerpc-apple-machten${UNAME_RELEASE} exit ;; RISC*:Mach:*:*) echo mips-dec-mach_bsd4.3 exit ;; RISC*:ULTRIX:*:*) echo mips-dec-ultrix${UNAME_RELEASE} exit ;; VAX*:ULTRIX*:*:*) echo vax-dec-ultrix${UNAME_RELEASE} exit ;; 2020:CLIX:*:* | 2430:CLIX:*:*) echo clipper-intergraph-clix${UNAME_RELEASE} exit ;; mips:*:*:UMIPS | mips:*:*:RISCos) eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #ifdef __cplusplus #include /* for printf() prototype */ int main (int argc, char *argv[]) { #else int main (argc, argv) int argc; char *argv[]; { #endif #if defined (host_mips) && defined (MIPSEB) #if defined (SYSTYPE_SYSV) printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0); #endif #if defined (SYSTYPE_SVR4) printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0); #endif #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD) printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0); #endif #endif exit (-1); } EOF $CC_FOR_BUILD -o $dummy $dummy.c && dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` && SYSTEM_NAME=`$dummy $dummyarg` && { echo "$SYSTEM_NAME"; exit; } echo mips-mips-riscos${UNAME_RELEASE} exit ;; Motorola:PowerMAX_OS:*:*) echo powerpc-motorola-powermax exit ;; Motorola:*:4.3:PL8-*) echo powerpc-harris-powermax exit ;; Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*) echo powerpc-harris-powermax exit ;; Night_Hawk:Power_UNIX:*:*) echo powerpc-harris-powerunix exit ;; m88k:CX/UX:7*:*) echo m88k-harris-cxux7 exit ;; m88k:*:4*:R4*) echo m88k-motorola-sysv4 exit ;; m88k:*:3*:R3*) echo m88k-motorola-sysv3 exit ;; AViiON:dgux:*:*) # DG/UX returns AViiON for all architectures UNAME_PROCESSOR=`/usr/bin/uname -p` if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ] then if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \ [ ${TARGET_BINARY_INTERFACE}x = x ] then echo m88k-dg-dgux${UNAME_RELEASE} else echo m88k-dg-dguxbcs${UNAME_RELEASE} fi else echo i586-dg-dgux${UNAME_RELEASE} fi exit ;; M88*:DolphinOS:*:*) # DolphinOS (SVR3) echo m88k-dolphin-sysv3 exit ;; M88*:*:R3*:*) # Delta 88k system running SVR3 echo m88k-motorola-sysv3 exit ;; XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3) echo m88k-tektronix-sysv3 exit ;; Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD) echo m68k-tektronix-bsd exit ;; *:IRIX*:*:*) echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'` exit ;; ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX. echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id exit ;; # Note that: echo "'`uname -s`'" gives 'AIX ' i*86:AIX:*:*) echo i386-ibm-aix exit ;; ia64:AIX:*:*) if [ -x /usr/bin/oslevel ] ; then IBM_REV=`/usr/bin/oslevel` else IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} fi echo ${UNAME_MACHINE}-ibm-aix${IBM_REV} exit ;; *:AIX:2:3) if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #include main() { if (!__power_pc()) exit(1); puts("powerpc-ibm-aix3.2.5"); exit(0); } EOF if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` then echo "$SYSTEM_NAME" else echo rs6000-ibm-aix3.2.5 fi elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then echo rs6000-ibm-aix3.2.4 else echo rs6000-ibm-aix3.2 fi exit ;; *:AIX:*:[45]) IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'` if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then IBM_ARCH=rs6000 else IBM_ARCH=powerpc fi if [ -x /usr/bin/oslevel ] ; then IBM_REV=`/usr/bin/oslevel` else IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} fi echo ${IBM_ARCH}-ibm-aix${IBM_REV} exit ;; *:AIX:*:*) echo rs6000-ibm-aix exit ;; ibmrt:4.4BSD:*|romp-ibm:BSD:*) echo romp-ibm-bsd4.4 exit ;; ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and echo romp-ibm-bsd${UNAME_RELEASE} # 4.3 with uname added to exit ;; # report: romp-ibm BSD 4.3 *:BOSX:*:*) echo rs6000-bull-bosx exit ;; DPX/2?00:B.O.S.:*:*) echo m68k-bull-sysv3 exit ;; 9000/[34]??:4.3bsd:1.*:*) echo m68k-hp-bsd exit ;; hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) echo m68k-hp-bsd4.4 exit ;; 9000/[34678]??:HP-UX:*:*) HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` case "${UNAME_MACHINE}" in 9000/31? ) HP_ARCH=m68000 ;; 9000/[34]?? ) HP_ARCH=m68k ;; 9000/[678][0-9][0-9]) if [ -x /usr/bin/getconf ]; then sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` case "${sc_cpu_version}" in 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1 532) # CPU_PA_RISC2_0 case "${sc_kernel_bits}" in 32) HP_ARCH="hppa2.0n" ;; 64) HP_ARCH="hppa2.0w" ;; '') HP_ARCH="hppa2.0" ;; # HP-UX 10.20 esac ;; esac fi if [ "${HP_ARCH}" = "" ]; then eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #define _HPUX_SOURCE #include #include int main () { #if defined(_SC_KERNEL_BITS) long bits = sysconf(_SC_KERNEL_BITS); #endif long cpu = sysconf (_SC_CPU_VERSION); switch (cpu) { case CPU_PA_RISC1_0: puts ("hppa1.0"); break; case CPU_PA_RISC1_1: puts ("hppa1.1"); break; case CPU_PA_RISC2_0: #if defined(_SC_KERNEL_BITS) switch (bits) { case 64: puts ("hppa2.0w"); break; case 32: puts ("hppa2.0n"); break; default: puts ("hppa2.0"); break; } break; #else /* !defined(_SC_KERNEL_BITS) */ puts ("hppa2.0"); break; #endif default: puts ("hppa1.0"); break; } exit (0); } EOF (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy` test -z "$HP_ARCH" && HP_ARCH=hppa fi ;; esac if [ ${HP_ARCH} = "hppa2.0w" ] then eval $set_cc_for_build # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler # generating 64-bit code. GNU and HP use different nomenclature: # # $ CC_FOR_BUILD=cc ./config.guess # => hppa2.0w-hp-hpux11.23 # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess # => hppa64-hp-hpux11.23 if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | grep __LP64__ >/dev/null then HP_ARCH="hppa2.0w" else HP_ARCH="hppa64" fi fi echo ${HP_ARCH}-hp-hpux${HPUX_REV} exit ;; ia64:HP-UX:*:*) HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` echo ia64-hp-hpux${HPUX_REV} exit ;; 3050*:HI-UX:*:*) eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #include int main () { long cpu = sysconf (_SC_CPU_VERSION); /* The order matters, because CPU_IS_HP_MC68K erroneously returns true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct results, however. */ if (CPU_IS_PA_RISC (cpu)) { switch (cpu) { case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; default: puts ("hppa-hitachi-hiuxwe2"); break; } } else if (CPU_IS_HP_MC68K (cpu)) puts ("m68k-hitachi-hiuxwe2"); else puts ("unknown-hitachi-hiuxwe2"); exit (0); } EOF $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` && { echo "$SYSTEM_NAME"; exit; } echo unknown-hitachi-hiuxwe2 exit ;; 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* ) echo hppa1.1-hp-bsd exit ;; 9000/8??:4.3bsd:*:*) echo hppa1.0-hp-bsd exit ;; *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) echo hppa1.0-hp-mpeix exit ;; hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* ) echo hppa1.1-hp-osf exit ;; hp8??:OSF1:*:*) echo hppa1.0-hp-osf exit ;; i*86:OSF1:*:*) if [ -x /usr/sbin/sysversion ] ; then echo ${UNAME_MACHINE}-unknown-osf1mk else echo ${UNAME_MACHINE}-unknown-osf1 fi exit ;; parisc*:Lites*:*:*) echo hppa1.1-hp-lites exit ;; C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) echo c1-convex-bsd exit ;; C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) if getsysinfo -f scalar_acc then echo c32-convex-bsd else echo c2-convex-bsd fi exit ;; C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) echo c34-convex-bsd exit ;; C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) echo c38-convex-bsd exit ;; C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) echo c4-convex-bsd exit ;; CRAY*Y-MP:*:*:*) echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*[A-Z]90:*:*:*) echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \ | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ -e 's/\.[^.]*$/.X/' exit ;; CRAY*TS:*:*:*) echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*T3E:*:*:*) echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*SV1:*:*:*) echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; *:UNICOS/mp:*:*) echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'` echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" exit ;; 5000:UNIX_System_V:4.*:*) FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'` echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" exit ;; i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE} exit ;; sparc*:BSD/OS:*:*) echo sparc-unknown-bsdi${UNAME_RELEASE} exit ;; *:BSD/OS:*:*) echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE} exit ;; *:FreeBSD:*:*) case ${UNAME_MACHINE} in pc98) echo i386-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; amd64) echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; *) echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; esac exit ;; i*:CYGWIN*:*) echo ${UNAME_MACHINE}-pc-cygwin exit ;; *:MINGW*:*) echo ${UNAME_MACHINE}-pc-mingw32 exit ;; i*:windows32*:*) # uname -m includes "-pc" on this system. echo ${UNAME_MACHINE}-mingw32 exit ;; i*:PW*:*) echo ${UNAME_MACHINE}-pc-pw32 exit ;; *:Interix*:[3456]*) case ${UNAME_MACHINE} in x86) echo i586-pc-interix${UNAME_RELEASE} exit ;; EM64T | authenticamd) echo x86_64-unknown-interix${UNAME_RELEASE} exit ;; esac ;; [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*) echo i${UNAME_MACHINE}-pc-mks exit ;; i*:Windows_NT*:* | Pentium*:Windows_NT*:*) # How do we know it's Interix rather than the generic POSIX subsystem? # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we # UNAME_MACHINE based on the output of uname instead of i386? echo i586-pc-interix exit ;; i*:UWIN*:*) echo ${UNAME_MACHINE}-pc-uwin exit ;; amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*) echo x86_64-unknown-cygwin exit ;; p*:CYGWIN*:*) echo powerpcle-unknown-cygwin exit ;; prep*:SunOS:5.*:*) echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; *:GNU:*:*) # the GNU system echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'` exit ;; *:GNU/*:*:*) # other systems with GNU libc and userland echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu exit ;; i*86:Minix:*:*) echo ${UNAME_MACHINE}-pc-minix exit ;; arm*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; avr32*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; cris:Linux:*:*) echo cris-axis-linux-gnu exit ;; crisv32:Linux:*:*) echo crisv32-axis-linux-gnu exit ;; frv:Linux:*:*) echo frv-unknown-linux-gnu exit ;; ia64:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; m32r*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; m68*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; mips:Linux:*:*) eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #undef CPU #undef mips #undef mipsel #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) CPU=mipsel #else #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) CPU=mips #else CPU= #endif #endif EOF eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n ' /^CPU/{ s: ::g p }'`" test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; } ;; mips64:Linux:*:*) eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #undef CPU #undef mips64 #undef mips64el #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) CPU=mips64el #else #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) CPU=mips64 #else CPU= #endif #endif EOF eval "`$CC_FOR_BUILD -E $dummy.c 2>/dev/null | sed -n ' /^CPU/{ s: ::g p }'`" test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; 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sh64*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; sh*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; sparc:Linux:*:* | sparc64:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; vax:Linux:*:*) echo ${UNAME_MACHINE}-dec-linux-gnu exit ;; x86_64:Linux:*:*) echo x86_64-unknown-linux-gnu exit ;; xtensa:Linux:*:*) echo xtensa-unknown-linux-gnu exit ;; i*86:Linux:*:*) # The BFD linker knows what the default object file format is, so # first see if it will tell us. cd to the root directory to prevent # problems with other programs or directories called `ld' in the path. # Set LC_ALL=C to ensure ld outputs messages in English. ld_supported_targets=`cd /; LC_ALL=C ld --help 2>&1 \ | sed -ne '/supported targets:/!d s/[ ][ ]*/ /g s/.*supported targets: *// s/ .*// p'` case "$ld_supported_targets" in elf32-i386) TENTATIVE="${UNAME_MACHINE}-pc-linux-gnu" ;; a.out-i386-linux) echo "${UNAME_MACHINE}-pc-linux-gnuaout" exit ;; coff-i386) echo "${UNAME_MACHINE}-pc-linux-gnucoff" exit ;; 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i*86:OS/2:*:*) # If we were able to find `uname', then EMX Unix compatibility # is probably installed. echo ${UNAME_MACHINE}-pc-os2-emx exit ;; i*86:XTS-300:*:STOP) echo ${UNAME_MACHINE}-unknown-stop exit ;; i*86:atheos:*:*) echo ${UNAME_MACHINE}-unknown-atheos exit ;; i*86:syllable:*:*) echo ${UNAME_MACHINE}-pc-syllable exit ;; i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.0*:*) echo i386-unknown-lynxos${UNAME_RELEASE} exit ;; i*86:*DOS:*:*) echo ${UNAME_MACHINE}-pc-msdosdjgpp exit ;; i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*) UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'` if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL} else echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL} fi exit ;; i*86:*:5:[678]*) # UnixWare 7.x, OpenUNIX and OpenServer 6. case `/bin/uname -X | grep "^Machine"` in *486*) UNAME_MACHINE=i486 ;; *Pentium) UNAME_MACHINE=i586 ;; *Pent*|*Celeron) UNAME_MACHINE=i686 ;; esac echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION} exit ;; i*86:*:3.2:*) if test -f /usr/options/cb.name; then UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')` (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486 (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \ && UNAME_MACHINE=i586 (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \ && UNAME_MACHINE=i686 (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \ && UNAME_MACHINE=i686 echo ${UNAME_MACHINE}-pc-sco$UNAME_REL else echo ${UNAME_MACHINE}-pc-sysv32 fi exit ;; pc:*:*:*) # Left here for compatibility: # uname -m prints for DJGPP always 'pc', but it prints nothing about # the processor, so we play safe by assuming i386. echo i386-pc-msdosdjgpp exit ;; Intel:Mach:3*:*) echo i386-pc-mach3 exit ;; paragon:*:*:*) echo i860-intel-osf1 exit ;; i860:*:4.*:*) # i860-SVR4 if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4 else # Add other i860-SVR4 vendors below as they are discovered. echo i860-unknown-sysv${UNAME_RELEASE} # Unknown i860-SVR4 fi exit ;; mini*:CTIX:SYS*5:*) # "miniframe" echo m68010-convergent-sysv exit ;; mc68k:UNIX:SYSTEM5:3.51m) echo m68k-convergent-sysv exit ;; M680?0:D-NIX:5.3:*) echo m68k-diab-dnix exit ;; M68*:*:R3V[5678]*:*) test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;; 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0) OS_REL='' test -r /etc/.relid \ && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4.3${OS_REL}; exit; } /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;; 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*) /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4; exit; } ;; m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*) echo m68k-unknown-lynxos${UNAME_RELEASE} exit ;; mc68030:UNIX_System_V:4.*:*) echo m68k-atari-sysv4 exit ;; TSUNAMI:LynxOS:2.*:*) echo sparc-unknown-lynxos${UNAME_RELEASE} exit ;; rs6000:LynxOS:2.*:*) echo rs6000-unknown-lynxos${UNAME_RELEASE} exit ;; PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.0*:*) echo powerpc-unknown-lynxos${UNAME_RELEASE} exit ;; SM[BE]S:UNIX_SV:*:*) echo mips-dde-sysv${UNAME_RELEASE} exit ;; RM*:ReliantUNIX-*:*:*) echo mips-sni-sysv4 exit ;; RM*:SINIX-*:*:*) echo mips-sni-sysv4 exit ;; *:SINIX-*:*:*) if uname -p 2>/dev/null >/dev/null ; then UNAME_MACHINE=`(uname -p) 2>/dev/null` echo ${UNAME_MACHINE}-sni-sysv4 else echo ns32k-sni-sysv fi exit ;; PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort # says echo i586-unisys-sysv4 exit ;; *:UNIX_System_V:4*:FTX*) # From Gerald Hewes . # How about differentiating between stratus architectures? -djm echo hppa1.1-stratus-sysv4 exit ;; *:*:*:FTX*) # From seanf@swdc.stratus.com. echo i860-stratus-sysv4 exit ;; i*86:VOS:*:*) # From Paul.Green@stratus.com. echo ${UNAME_MACHINE}-stratus-vos exit ;; *:VOS:*:*) # From Paul.Green@stratus.com. echo hppa1.1-stratus-vos exit ;; mc68*:A/UX:*:*) echo m68k-apple-aux${UNAME_RELEASE} exit ;; news*:NEWS-OS:6*:*) echo mips-sony-newsos6 exit ;; R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*) if [ -d /usr/nec ]; then echo mips-nec-sysv${UNAME_RELEASE} else echo mips-unknown-sysv${UNAME_RELEASE} fi exit ;; BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only. echo powerpc-be-beos exit ;; BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only. echo powerpc-apple-beos exit ;; BePC:BeOS:*:*) # BeOS running on Intel PC compatible. echo i586-pc-beos exit ;; SX-4:SUPER-UX:*:*) echo sx4-nec-superux${UNAME_RELEASE} exit ;; SX-5:SUPER-UX:*:*) echo sx5-nec-superux${UNAME_RELEASE} exit ;; SX-6:SUPER-UX:*:*) echo sx6-nec-superux${UNAME_RELEASE} exit ;; SX-7:SUPER-UX:*:*) echo sx7-nec-superux${UNAME_RELEASE} exit ;; SX-8:SUPER-UX:*:*) echo sx8-nec-superux${UNAME_RELEASE} exit ;; SX-8R:SUPER-UX:*:*) echo sx8r-nec-superux${UNAME_RELEASE} exit ;; Power*:Rhapsody:*:*) echo powerpc-apple-rhapsody${UNAME_RELEASE} exit ;; *:Rhapsody:*:*) echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE} exit ;; *:Darwin:*:*) UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown case $UNAME_PROCESSOR in unknown) UNAME_PROCESSOR=powerpc ;; esac echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE} exit ;; *:procnto*:*:* | *:QNX:[0123456789]*:*) UNAME_PROCESSOR=`uname -p` if test "$UNAME_PROCESSOR" = "x86"; then UNAME_PROCESSOR=i386 UNAME_MACHINE=pc fi echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE} exit ;; *:QNX:*:4*) echo i386-pc-qnx exit ;; NSE-?:NONSTOP_KERNEL:*:*) echo nse-tandem-nsk${UNAME_RELEASE} exit ;; NSR-?:NONSTOP_KERNEL:*:*) echo nsr-tandem-nsk${UNAME_RELEASE} exit ;; *:NonStop-UX:*:*) echo mips-compaq-nonstopux exit ;; BS2000:POSIX*:*:*) echo bs2000-siemens-sysv exit ;; DS/*:UNIX_System_V:*:*) echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE} exit ;; *:Plan9:*:*) # "uname -m" is not consistent, so use $cputype instead. 386 # is converted to i386 for consistency with other x86 # operating systems. if test "$cputype" = "386"; then UNAME_MACHINE=i386 else UNAME_MACHINE="$cputype" fi echo ${UNAME_MACHINE}-unknown-plan9 exit ;; *:TOPS-10:*:*) echo pdp10-unknown-tops10 exit ;; *:TENEX:*:*) echo pdp10-unknown-tenex exit ;; KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*) echo pdp10-dec-tops20 exit ;; XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*) echo pdp10-xkl-tops20 exit ;; *:TOPS-20:*:*) echo pdp10-unknown-tops20 exit ;; *:ITS:*:*) echo pdp10-unknown-its exit ;; SEI:*:*:SEIUX) echo mips-sei-seiux${UNAME_RELEASE} exit ;; *:DragonFly:*:*) echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` exit ;; *:*VMS:*:*) UNAME_MACHINE=`(uname -p) 2>/dev/null` case "${UNAME_MACHINE}" in A*) echo alpha-dec-vms ; exit ;; I*) echo ia64-dec-vms ; exit ;; V*) echo vax-dec-vms ; exit ;; esac ;; *:XENIX:*:SysV) echo i386-pc-xenix exit ;; i*86:skyos:*:*) echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//' exit ;; i*86:rdos:*:*) echo ${UNAME_MACHINE}-pc-rdos exit ;; esac #echo '(No uname command or uname output not recognized.)' 1>&2 #echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2 eval $set_cc_for_build cat >$dummy.c < # include #endif main () { #if defined (sony) #if defined (MIPSEB) /* BFD wants "bsd" instead of "newsos". Perhaps BFD should be changed, I don't know.... */ printf ("mips-sony-bsd\n"); exit (0); #else #include printf ("m68k-sony-newsos%s\n", #ifdef NEWSOS4 "4" #else "" #endif ); exit (0); #endif #endif #if defined (__arm) && defined (__acorn) && defined (__unix) printf ("arm-acorn-riscix\n"); exit (0); #endif #if defined (hp300) && !defined (hpux) printf ("m68k-hp-bsd\n"); exit (0); #endif #if defined (NeXT) #if !defined (__ARCHITECTURE__) #define __ARCHITECTURE__ "m68k" #endif int version; version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`; if (version < 4) printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version); else printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version); exit (0); #endif #if defined (MULTIMAX) || defined (n16) #if defined (UMAXV) printf ("ns32k-encore-sysv\n"); exit (0); #else #if defined (CMU) printf ("ns32k-encore-mach\n"); exit (0); #else printf ("ns32k-encore-bsd\n"); exit (0); #endif #endif #endif #if defined (__386BSD__) printf ("i386-pc-bsd\n"); exit (0); #endif #if defined (sequent) #if defined (i386) printf ("i386-sequent-dynix\n"); exit (0); #endif #if defined (ns32000) printf ("ns32k-sequent-dynix\n"); exit (0); #endif #endif #if defined (_SEQUENT_) struct utsname un; uname(&un); if (strncmp(un.version, "V2", 2) == 0) { printf ("i386-sequent-ptx2\n"); exit (0); } if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */ printf ("i386-sequent-ptx1\n"); exit (0); } printf ("i386-sequent-ptx\n"); exit (0); #endif #if defined (vax) # if !defined (ultrix) # include # if defined (BSD) # if BSD == 43 printf ("vax-dec-bsd4.3\n"); exit (0); # else # if BSD == 199006 printf ("vax-dec-bsd4.3reno\n"); exit (0); # else printf ("vax-dec-bsd\n"); exit (0); # endif # endif # else printf ("vax-dec-bsd\n"); exit (0); # endif # else printf ("vax-dec-ultrix\n"); exit (0); # endif #endif #if defined (alliant) && defined (i860) printf ("i860-alliant-bsd\n"); exit (0); #endif exit (1); } EOF $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` && { echo "$SYSTEM_NAME"; exit; } # Apollos put the system type in the environment. test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; } # Convex versions that predate uname can use getsysinfo(1) if [ -x /usr/convex/getsysinfo ] then case `getsysinfo -f cpu_type` in c1*) echo c1-convex-bsd exit ;; c2*) if getsysinfo -f scalar_acc then echo c32-convex-bsd else echo c2-convex-bsd fi exit ;; c34*) echo c34-convex-bsd exit ;; c38*) echo c38-convex-bsd exit ;; c4*) echo c4-convex-bsd exit ;; esac fi cat >&2 < in order to provide the needed information to handle your system. config.guess timestamp = $timestamp uname -m = `(uname -m) 2>/dev/null || echo unknown` uname -r = `(uname -r) 2>/dev/null || echo unknown` uname -s = `(uname -s) 2>/dev/null || echo unknown` uname -v = `(uname -v) 2>/dev/null || echo unknown` /usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null` /bin/uname -X = `(/bin/uname -X) 2>/dev/null` hostinfo = `(hostinfo) 2>/dev/null` /bin/universe = `(/bin/universe) 2>/dev/null` /usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null` /bin/arch = `(/bin/arch) 2>/dev/null` /usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null` /usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null` UNAME_MACHINE = ${UNAME_MACHINE} UNAME_RELEASE = ${UNAME_RELEASE} UNAME_SYSTEM = ${UNAME_SYSTEM} UNAME_VERSION = ${UNAME_VERSION} EOF exit 1 # Local variables: # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "timestamp='" # time-stamp-format: "%:y-%02m-%02d" # time-stamp-end: "'" # End: clamsmtp-1.10/config.sub0000755000175000017500000007772410707444443012207 00000000000000#! /bin/sh # Configuration validation subroutine script. # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, # 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, # Inc. timestamp='2007-06-28' # This file is (in principle) common to ALL GNU software. # The presence of a machine in this file suggests that SOME GNU software # can handle that machine. It does not imply ALL GNU software can. # # This file is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA # 02110-1301, USA. # # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # Please send patches to . Submit a context # diff and a properly formatted ChangeLog entry. # # Configuration subroutine to validate and canonicalize a configuration type. # Supply the specified configuration type as an argument. # If it is invalid, we print an error message on stderr and exit with code 1. # Otherwise, we print the canonical config type on stdout and succeed. # This file is supposed to be the same for all GNU packages # and recognize all the CPU types, system types and aliases # that are meaningful with *any* GNU software. # Each package is responsible for reporting which valid configurations # it does not support. The user should be able to distinguish # a failure to support a valid configuration from a meaningless # configuration. # The goal of this file is to map all the various variations of a given # machine specification into a single specification in the form: # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM # or in some cases, the newer four-part form: # CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM # It is wrong to echo any other type of specification. me=`echo "$0" | sed -e 's,.*/,,'` usage="\ Usage: $0 [OPTION] CPU-MFR-OPSYS $0 [OPTION] ALIAS Canonicalize a configuration name. Operation modes: -h, --help print this help, then exit -t, --time-stamp print date of last modification, then exit -v, --version print version number, then exit Report bugs and patches to ." version="\ GNU config.sub ($timestamp) Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." help=" Try \`$me --help' for more information." # Parse command line while test $# -gt 0 ; do case $1 in --time-stamp | --time* | -t ) echo "$timestamp" ; exit ;; --version | -v ) echo "$version" ; exit ;; --help | --h* | -h ) echo "$usage"; exit ;; -- ) # Stop option processing shift; break ;; - ) # Use stdin as input. break ;; -* ) echo "$me: invalid option $1$help" exit 1 ;; *local*) # First pass through any local machine types. echo $1 exit ;; * ) break ;; esac done case $# in 0) echo "$me: missing argument$help" >&2 exit 1;; 1) ;; *) echo "$me: too many arguments$help" >&2 exit 1;; esac # Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any). # Here we must recognize all the valid KERNEL-OS combinations. maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'` case $maybe_os in nto-qnx* | linux-gnu* | linux-dietlibc | linux-newlib* | linux-uclibc* | \ uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* | \ storm-chaos* | os2-emx* | rtmk-nova*) os=-$maybe_os basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'` ;; *) basic_machine=`echo $1 | sed 's/-[^-]*$//'` if [ $basic_machine != $1 ] then os=`echo $1 | sed 's/.*-/-/'` else os=; fi ;; esac ### Let's recognize common machines as not being operating systems so ### that things like config.sub decstation-3100 work. We also ### recognize some manufacturers as not being operating systems, so we ### can provide default operating systems below. case $os in -sun*os*) # Prevent following clause from handling this invalid input. ;; -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \ -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \ -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \ -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\ -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \ -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \ -apple | -axis | -knuth | -cray) os= basic_machine=$1 ;; -sim | -cisco | -oki | -wec | -winbond) os= basic_machine=$1 ;; -scout) ;; -wrs) os=-vxworks basic_machine=$1 ;; -chorusos*) os=-chorusos basic_machine=$1 ;; -chorusrdb) os=-chorusrdb basic_machine=$1 ;; -hiux*) os=-hiuxwe2 ;; -sco6) os=-sco5v6 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco5) os=-sco3.2v5 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco4) os=-sco3.2v4 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco3.2.[4-9]*) os=`echo $os | sed -e 's/sco3.2./sco3.2v/'` basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco3.2v[4-9]*) # Don't forget version if it is 3.2v4 or newer. basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco5v6*) # Don't forget version if it is 3.2v4 or newer. basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco*) os=-sco3.2v2 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -udk*) basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -isc) os=-isc2.2 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -clix*) basic_machine=clipper-intergraph ;; -isc*) basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -lynx*) os=-lynxos ;; -ptx*) basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'` ;; -windowsnt*) os=`echo $os | sed -e 's/windowsnt/winnt/'` ;; -psos*) os=-psos ;; -mint | -mint[0-9]*) basic_machine=m68k-atari os=-mint ;; esac # Decode aliases for certain CPU-COMPANY combinations. case $basic_machine in # Recognize the basic CPU types without company name. # Some are omitted here because they have special meanings below. 1750a | 580 \ | a29k \ | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \ | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \ | am33_2.0 \ | arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \ | bfin \ | c4x | clipper \ | d10v | d30v | dlx | dsp16xx \ | fido | fr30 | frv \ | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ | i370 | i860 | i960 | ia64 \ | ip2k | iq2000 \ | m32c | m32r | m32rle | m68000 | m68k | m88k \ | maxq | mb | microblaze | mcore | mep \ | mips | mipsbe | mipseb | mipsel | mipsle \ | mips16 \ | mips64 | mips64el \ | mips64vr | mips64vrel \ | mips64orion | mips64orionel \ | mips64vr4100 | mips64vr4100el \ | mips64vr4300 | mips64vr4300el \ | mips64vr5000 | mips64vr5000el \ | mips64vr5900 | mips64vr5900el \ | mipsisa32 | mipsisa32el \ | mipsisa32r2 | mipsisa32r2el \ | mipsisa64 | mipsisa64el \ | mipsisa64r2 | mipsisa64r2el \ | mipsisa64sb1 | mipsisa64sb1el \ | mipsisa64sr71k | mipsisa64sr71kel \ | mipstx39 | mipstx39el \ | mn10200 | mn10300 \ | mt \ | msp430 \ | nios | nios2 \ | ns16k | ns32k \ | or32 \ | pdp10 | pdp11 | pj | pjl \ | powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \ | pyramid \ | score \ | sh | sh[1234] | sh[24]a | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \ | sh64 | sh64le \ | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \ | sparcv8 | sparcv9 | sparcv9b | sparcv9v \ | spu | strongarm \ | tahoe | thumb | tic4x | tic80 | tron \ | v850 | v850e \ | we32k \ | x86 | xc16x | xscale | xscalee[bl] | xstormy16 | xtensa \ | z8k) basic_machine=$basic_machine-unknown ;; m6811 | m68hc11 | m6812 | m68hc12) # Motorola 68HC11/12. basic_machine=$basic_machine-unknown os=-none ;; m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k) ;; ms1) basic_machine=mt-unknown ;; # We use `pc' rather than `unknown' # because (1) that's what they normally are, and # (2) the word "unknown" tends to confuse beginning users. i*86 | x86_64) basic_machine=$basic_machine-pc ;; # Object if more than one company name word. *-*-*) echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 exit 1 ;; # Recognize the basic CPU types with company name. 580-* \ | a29k-* \ | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \ | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \ | alphapca5[67]-* | alpha64pca5[67]-* | arc-* \ | arm-* | armbe-* | armle-* | armeb-* | armv*-* \ | avr-* | avr32-* \ | bfin-* | bs2000-* \ | c[123]* | c30-* | [cjt]90-* | c4x-* | c54x-* | c55x-* | c6x-* \ | clipper-* | craynv-* | cydra-* \ | d10v-* | d30v-* | dlx-* \ | elxsi-* \ | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \ | h8300-* | h8500-* \ | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ | i*86-* | i860-* | i960-* | ia64-* \ | ip2k-* | iq2000-* \ | m32c-* | m32r-* | m32rle-* \ | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \ | m88110-* | m88k-* | maxq-* | mcore-* \ | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \ | mips16-* \ | mips64-* | mips64el-* \ | mips64vr-* | mips64vrel-* \ | mips64orion-* | mips64orionel-* \ | mips64vr4100-* | mips64vr4100el-* \ | mips64vr4300-* | mips64vr4300el-* \ | mips64vr5000-* | mips64vr5000el-* \ | mips64vr5900-* | mips64vr5900el-* \ | mipsisa32-* | mipsisa32el-* \ | mipsisa32r2-* | mipsisa32r2el-* \ | mipsisa64-* | mipsisa64el-* \ | mipsisa64r2-* | mipsisa64r2el-* \ | mipsisa64sb1-* | mipsisa64sb1el-* \ | mipsisa64sr71k-* | mipsisa64sr71kel-* \ | mipstx39-* | mipstx39el-* \ | mmix-* \ | mt-* \ | msp430-* \ | nios-* | nios2-* \ | none-* | np1-* | ns16k-* | ns32k-* \ | orion-* \ | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \ | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \ | pyramid-* \ | romp-* | rs6000-* \ | sh-* | sh[1234]-* | sh[24]a-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \ | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \ | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \ | sparclite-* \ | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | strongarm-* | sv1-* | sx?-* \ | tahoe-* | thumb-* \ | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \ | tron-* \ | v850-* | v850e-* | vax-* \ | we32k-* \ | x86-* | x86_64-* | xc16x-* | xps100-* | xscale-* | xscalee[bl]-* \ | xstormy16-* | xtensa-* \ | ymp-* \ | z8k-*) ;; # Recognize the various machine names and aliases which stand # for a CPU type and a company and sometimes even an OS. 386bsd) basic_machine=i386-unknown os=-bsd ;; 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) basic_machine=m68000-att ;; 3b*) basic_machine=we32k-att ;; a29khif) basic_machine=a29k-amd os=-udi ;; abacus) basic_machine=abacus-unknown ;; adobe68k) basic_machine=m68010-adobe os=-scout ;; alliant | fx80) basic_machine=fx80-alliant ;; altos | altos3068) basic_machine=m68k-altos ;; am29k) basic_machine=a29k-none os=-bsd ;; amd64) basic_machine=x86_64-pc ;; amd64-*) basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'` ;; amdahl) basic_machine=580-amdahl os=-sysv ;; amiga | amiga-*) basic_machine=m68k-unknown ;; amigaos | amigados) basic_machine=m68k-unknown os=-amigaos ;; amigaunix | amix) basic_machine=m68k-unknown os=-sysv4 ;; apollo68) basic_machine=m68k-apollo os=-sysv ;; apollo68bsd) basic_machine=m68k-apollo os=-bsd ;; aux) basic_machine=m68k-apple os=-aux ;; balance) basic_machine=ns32k-sequent os=-dynix ;; c90) basic_machine=c90-cray os=-unicos ;; convex-c1) basic_machine=c1-convex os=-bsd ;; convex-c2) basic_machine=c2-convex os=-bsd ;; convex-c32) basic_machine=c32-convex os=-bsd ;; convex-c34) basic_machine=c34-convex os=-bsd ;; convex-c38) basic_machine=c38-convex os=-bsd ;; cray | j90) basic_machine=j90-cray os=-unicos ;; craynv) basic_machine=craynv-cray os=-unicosmp ;; cr16) basic_machine=cr16-unknown os=-elf ;; crds | unos) basic_machine=m68k-crds ;; crisv32 | crisv32-* | etraxfs*) basic_machine=crisv32-axis ;; cris | cris-* | etrax*) basic_machine=cris-axis ;; crx) basic_machine=crx-unknown os=-elf ;; da30 | da30-*) basic_machine=m68k-da30 ;; decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn) basic_machine=mips-dec ;; decsystem10* | dec10*) basic_machine=pdp10-dec os=-tops10 ;; decsystem20* | dec20*) basic_machine=pdp10-dec os=-tops20 ;; delta | 3300 | motorola-3300 | motorola-delta \ | 3300-motorola | delta-motorola) basic_machine=m68k-motorola ;; delta88) basic_machine=m88k-motorola os=-sysv3 ;; djgpp) basic_machine=i586-pc os=-msdosdjgpp ;; dpx20 | dpx20-*) basic_machine=rs6000-bull os=-bosx ;; dpx2* | dpx2*-bull) basic_machine=m68k-bull os=-sysv3 ;; ebmon29k) basic_machine=a29k-amd os=-ebmon ;; elxsi) basic_machine=elxsi-elxsi os=-bsd ;; encore | umax | mmax) basic_machine=ns32k-encore ;; es1800 | OSE68k | ose68k | ose | OSE) basic_machine=m68k-ericsson os=-ose ;; fx2800) basic_machine=i860-alliant ;; genix) basic_machine=ns32k-ns ;; gmicro) basic_machine=tron-gmicro os=-sysv ;; go32) basic_machine=i386-pc os=-go32 ;; h3050r* | hiux*) basic_machine=hppa1.1-hitachi os=-hiuxwe2 ;; h8300hms) basic_machine=h8300-hitachi os=-hms ;; h8300xray) basic_machine=h8300-hitachi os=-xray ;; h8500hms) basic_machine=h8500-hitachi os=-hms ;; harris) basic_machine=m88k-harris os=-sysv3 ;; hp300-*) basic_machine=m68k-hp ;; hp300bsd) basic_machine=m68k-hp os=-bsd ;; hp300hpux) basic_machine=m68k-hp os=-hpux ;; hp3k9[0-9][0-9] | hp9[0-9][0-9]) basic_machine=hppa1.0-hp ;; hp9k2[0-9][0-9] | hp9k31[0-9]) basic_machine=m68000-hp ;; hp9k3[2-9][0-9]) basic_machine=m68k-hp ;; hp9k6[0-9][0-9] | hp6[0-9][0-9]) basic_machine=hppa1.0-hp ;; hp9k7[0-79][0-9] | hp7[0-79][0-9]) basic_machine=hppa1.1-hp ;; hp9k78[0-9] | hp78[0-9]) # FIXME: really hppa2.0-hp basic_machine=hppa1.1-hp ;; hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893) # FIXME: really hppa2.0-hp basic_machine=hppa1.1-hp ;; hp9k8[0-9][13679] | hp8[0-9][13679]) basic_machine=hppa1.1-hp ;; hp9k8[0-9][0-9] | hp8[0-9][0-9]) basic_machine=hppa1.0-hp ;; hppa-next) os=-nextstep3 ;; hppaosf) basic_machine=hppa1.1-hp os=-osf ;; hppro) basic_machine=hppa1.1-hp os=-proelf ;; i370-ibm* | ibm*) basic_machine=i370-ibm ;; # I'm not sure what "Sysv32" means. Should this be sysv3.2? i*86v32) basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` os=-sysv32 ;; i*86v4*) basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` os=-sysv4 ;; i*86v) basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` os=-sysv ;; i*86sol2) basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` os=-solaris2 ;; i386mach) basic_machine=i386-mach os=-mach ;; i386-vsta | vsta) basic_machine=i386-unknown os=-vsta ;; iris | iris4d) basic_machine=mips-sgi case $os in -irix*) ;; *) os=-irix4 ;; esac ;; isi68 | isi) basic_machine=m68k-isi os=-sysv ;; m88k-omron*) basic_machine=m88k-omron ;; magnum | m3230) basic_machine=mips-mips os=-sysv ;; merlin) basic_machine=ns32k-utek os=-sysv ;; mingw32) basic_machine=i386-pc os=-mingw32 ;; mingw32ce) basic_machine=arm-unknown os=-mingw32ce ;; miniframe) basic_machine=m68000-convergent ;; *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*) basic_machine=m68k-atari os=-mint ;; mips3*-*) basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'` ;; mips3*) basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown ;; monitor) basic_machine=m68k-rom68k os=-coff ;; morphos) basic_machine=powerpc-unknown os=-morphos ;; msdos) basic_machine=i386-pc os=-msdos ;; ms1-*) basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'` ;; mvs) basic_machine=i370-ibm os=-mvs ;; ncr3000) basic_machine=i486-ncr os=-sysv4 ;; netbsd386) basic_machine=i386-unknown os=-netbsd ;; netwinder) basic_machine=armv4l-rebel os=-linux ;; news | news700 | news800 | news900) basic_machine=m68k-sony os=-newsos ;; news1000) basic_machine=m68030-sony os=-newsos ;; news-3600 | risc-news) basic_machine=mips-sony os=-newsos ;; necv70) basic_machine=v70-nec os=-sysv ;; next | m*-next ) basic_machine=m68k-next case $os in -nextstep* ) ;; -ns2*) os=-nextstep2 ;; *) os=-nextstep3 ;; esac ;; nh3000) basic_machine=m68k-harris os=-cxux ;; nh[45]000) basic_machine=m88k-harris os=-cxux ;; nindy960) basic_machine=i960-intel os=-nindy ;; mon960) basic_machine=i960-intel os=-mon960 ;; nonstopux) basic_machine=mips-compaq os=-nonstopux ;; np1) basic_machine=np1-gould ;; nsr-tandem) basic_machine=nsr-tandem ;; op50n-* | op60c-*) basic_machine=hppa1.1-oki os=-proelf ;; openrisc | openrisc-*) basic_machine=or32-unknown ;; os400) basic_machine=powerpc-ibm os=-os400 ;; OSE68000 | ose68000) basic_machine=m68000-ericsson os=-ose ;; os68k) basic_machine=m68k-none os=-os68k ;; pa-hitachi) basic_machine=hppa1.1-hitachi os=-hiuxwe2 ;; paragon) basic_machine=i860-intel os=-osf ;; pbd) basic_machine=sparc-tti ;; pbb) basic_machine=m68k-tti ;; pc532 | pc532-*) basic_machine=ns32k-pc532 ;; pc98) basic_machine=i386-pc ;; pc98-*) basic_machine=i386-`echo $basic_machine | sed 's/^[^-]*-//'` ;; pentium | p5 | k5 | k6 | nexgen | viac3) basic_machine=i586-pc ;; pentiumpro | p6 | 6x86 | athlon | athlon_*) basic_machine=i686-pc ;; pentiumii | pentium2 | pentiumiii | pentium3) basic_machine=i686-pc ;; pentium4) basic_machine=i786-pc ;; pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*) basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'` ;; pentiumpro-* | p6-* | 6x86-* | athlon-*) basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'` ;; pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*) basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'` ;; pentium4-*) basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'` ;; pn) basic_machine=pn-gould ;; power) basic_machine=power-ibm ;; ppc) basic_machine=powerpc-unknown ;; ppc-*) basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'` ;; ppcle | powerpclittle | ppc-le | powerpc-little) basic_machine=powerpcle-unknown ;; ppcle-* | powerpclittle-*) basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'` ;; ppc64) basic_machine=powerpc64-unknown ;; ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'` ;; ppc64le | powerpc64little | ppc64-le | powerpc64-little) basic_machine=powerpc64le-unknown ;; ppc64le-* | powerpc64little-*) basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'` ;; ps2) basic_machine=i386-ibm ;; pw32) basic_machine=i586-unknown os=-pw32 ;; rdos) basic_machine=i386-pc os=-rdos ;; rom68k) basic_machine=m68k-rom68k os=-coff ;; rm[46]00) basic_machine=mips-siemens ;; rtpc | rtpc-*) basic_machine=romp-ibm ;; s390 | s390-*) basic_machine=s390-ibm ;; s390x | s390x-*) basic_machine=s390x-ibm ;; sa29200) basic_machine=a29k-amd os=-udi ;; sb1) basic_machine=mipsisa64sb1-unknown ;; sb1el) basic_machine=mipsisa64sb1el-unknown ;; sde) basic_machine=mipsisa32-sde os=-elf ;; sei) basic_machine=mips-sei os=-seiux ;; sequent) basic_machine=i386-sequent ;; sh) basic_machine=sh-hitachi os=-hms ;; sh5el) basic_machine=sh5le-unknown ;; sh64) basic_machine=sh64-unknown ;; sparclite-wrs | simso-wrs) basic_machine=sparclite-wrs os=-vxworks ;; sps7) basic_machine=m68k-bull os=-sysv2 ;; spur) basic_machine=spur-unknown ;; st2000) basic_machine=m68k-tandem ;; stratus) basic_machine=i860-stratus os=-sysv4 ;; sun2) basic_machine=m68000-sun ;; sun2os3) basic_machine=m68000-sun os=-sunos3 ;; sun2os4) basic_machine=m68000-sun os=-sunos4 ;; sun3os3) basic_machine=m68k-sun os=-sunos3 ;; sun3os4) basic_machine=m68k-sun os=-sunos4 ;; sun4os3) basic_machine=sparc-sun os=-sunos3 ;; sun4os4) basic_machine=sparc-sun os=-sunos4 ;; sun4sol2) basic_machine=sparc-sun os=-solaris2 ;; sun3 | sun3-*) basic_machine=m68k-sun ;; sun4) basic_machine=sparc-sun ;; sun386 | sun386i | roadrunner) basic_machine=i386-sun ;; sv1) basic_machine=sv1-cray os=-unicos ;; symmetry) basic_machine=i386-sequent os=-dynix ;; t3e) basic_machine=alphaev5-cray os=-unicos ;; t90) basic_machine=t90-cray os=-unicos ;; tic54x | c54x*) basic_machine=tic54x-unknown os=-coff ;; tic55x | c55x*) basic_machine=tic55x-unknown os=-coff ;; tic6x | c6x*) basic_machine=tic6x-unknown os=-coff ;; tx39) basic_machine=mipstx39-unknown ;; tx39el) basic_machine=mipstx39el-unknown ;; toad1) basic_machine=pdp10-xkl os=-tops20 ;; tower | tower-32) basic_machine=m68k-ncr ;; tpf) basic_machine=s390x-ibm os=-tpf ;; udi29k) basic_machine=a29k-amd os=-udi ;; ultra3) basic_machine=a29k-nyu os=-sym1 ;; v810 | necv810) basic_machine=v810-nec os=-none ;; vaxv) basic_machine=vax-dec os=-sysv ;; vms) basic_machine=vax-dec os=-vms ;; vpp*|vx|vx-*) basic_machine=f301-fujitsu ;; vxworks960) basic_machine=i960-wrs os=-vxworks ;; vxworks68) basic_machine=m68k-wrs os=-vxworks ;; vxworks29k) basic_machine=a29k-wrs os=-vxworks ;; w65*) basic_machine=w65-wdc os=-none ;; w89k-*) basic_machine=hppa1.1-winbond os=-proelf ;; xbox) basic_machine=i686-pc os=-mingw32 ;; xps | xps100) basic_machine=xps100-honeywell ;; ymp) basic_machine=ymp-cray os=-unicos ;; z8k-*-coff) basic_machine=z8k-unknown os=-sim ;; none) basic_machine=none-none os=-none ;; # Here we handle the default manufacturer of certain CPU types. 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See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA # 02110-1301, USA. # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # Originally written by Alexandre Oliva . case $1 in '') echo "$0: No command. Try \`$0 --help' for more information." 1>&2 exit 1; ;; -h | --h*) cat <<\EOF Usage: depcomp [--help] [--version] PROGRAM [ARGS] Run PROGRAMS ARGS to compile a file, generating dependencies as side-effects. Environment variables: depmode Dependency tracking mode. source Source file read by `PROGRAMS ARGS'. object Object file output by `PROGRAMS ARGS'. DEPDIR directory where to store dependencies. depfile Dependency file to output. tmpdepfile Temporary file to use when outputing dependencies. libtool Whether libtool is used (yes/no). Report bugs to . EOF exit $? ;; -v | --v*) echo "depcomp $scriptversion" exit $? ;; esac if test -z "$depmode" || test -z "$source" || test -z "$object"; then echo "depcomp: Variables source, object and depmode must be set" 1>&2 exit 1 fi # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. depfile=${depfile-`echo "$object" | sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} rm -f "$tmpdepfile" # Some modes work just like other modes, but use different flags. We # parameterize here, but still list the modes in the big case below, # to make depend.m4 easier to write. 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Note that the slowdown incurred here ## affects only configure: in makefiles, %FASTDEP% shortcuts this. for arg do case $arg in -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;; *) set fnord "$@" "$arg" ;; esac shift # fnord shift # $arg done "$@" stat=$? if test $stat -eq 0; then : else rm -f "$tmpdepfile" exit $stat fi mv "$tmpdepfile" "$depfile" ;; gcc) ## There are various ways to get dependency output from gcc. Here's ## why we pick this rather obscure method: ## - Don't want to use -MD because we'd like the dependencies to end ## up in a subdir. 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We avoid this by adding ## dummy dependencies for each header file. Too bad gcc doesn't do ## this for us directly. tr ' ' ' ' < "$tmpdepfile" | ## Some versions of gcc put a space before the `:'. On the theory ## that the space means something, we add a space to the output as ## well. ## Some versions of the HPUX 10.20 sed can't process this invocation ## correctly. Breaking it into two sed invocations is a workaround. sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; hp) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. 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This mechanism is used in libtool 1.4 series to # handle both shared and static libraries in a single compilation. # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d. # # With libtool 1.5 this exception was removed, and libtool now # generates 2 separate objects for the 2 libraries. These two # compilations output dependencies in $dir.libs/$base.o.d and # in $dir$base.o.d. We have to check for both files, because # one of the two compilations can be disabled. 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You # have been warned. Do NOT do the following unless you # want to be screwed big time: # # mv $EMAIL "$SENDER.eml" # # An attacker can use the above command to compromise your # computer. The only variable that is guaranteed safe in # this regard is $EMAIL. # # The following script does not escape its variables # because it only uses them in safe ways. # # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! # A sample script for virus actions. When testing make sure # everything can run as the clamav (or relevant) user. file="/path/to/virus.log" dir="/path/to/quarantine/" exec 1>>$file exec 2>>$file # Add some fun log lines to the log file echo "-------------------------------------------------------" echo Sender $SENDER echo Recipients $RECIPIENTS echo Virus $VIRUS echo "-------------------------------------------------------" # Move the virus file to another directory # This only works if Quarantine is enabled if [ -n "$EMAIL" ]; then mv "$EMAIL" "$dir" fi clamsmtp-1.10/scripts/.svn/prop-base/0000777000175000017500000000000010577653460014540 500000000000000clamsmtp-1.10/scripts/.svn/prop-base/clamsmtpd.sh.svn-base0000444000175000017500000000006510577653460020510 00000000000000K 13 svn:mime-type V 24 application/octet-stream END clamsmtp-1.10/scripts/.svn/prop-base/virus_action.sh.svn-base0000444000175000017500000000006510577653460021231 00000000000000K 13 svn:mime-type V 24 application/octet-stream END clamsmtp-1.10/scripts/.svn/props/0000777000175000017500000000000010577653460014013 500000000000000clamsmtp-1.10/scripts/.svn/tmp/0000777000175000017500000000000011032211504013420 500000000000000clamsmtp-1.10/scripts/.svn/tmp/text-base/0000777000175000017500000000000010577653460015344 500000000000000clamsmtp-1.10/scripts/.svn/tmp/prop-base/0000777000175000017500000000000010577653460015340 500000000000000clamsmtp-1.10/scripts/.svn/tmp/props/0000777000175000017500000000000010577653460014613 500000000000000clamsmtp-1.10/scripts/.svn/entries0000444000175000017500000000075711032211504014137 000000000000008 dir 1170 http://dev.ws.local/svn/services/clamsmtp/scripts http://dev.ws.local/svn/services 2005-01-15T22:52:43.000000Z 643 nate svn:special svn:externals svn:needs-lock 37549a05-7cf3-0310-b41a-658052d0713c clamsmtpd.sh file 2007-03-20T03:38:24.000000Z 8bd04ca0a8f5205aa7793d881d50d021 2005-01-15T22:52:43.000000Z 643 nate has-props virus_action.sh file 2007-03-20T03:38:24.000000Z f94f6c68f2e165c7f87a5cc5a14268bb 2004-11-20T05:59:45.000000Z 636 nate has-props clamsmtp-1.10/scripts/.svn/format0000444000175000017500000000000210577653460013765 000000000000008 clamsmtp-1.10/scripts/.svn/all-wcprops0000444000175000017500000000046610577653460014756 00000000000000K 25 svn:wc:ra_dav:version-url V 43 /svn/services/!svn/ver/683/clamsmtp/scripts END clamsmtpd.sh K 25 svn:wc:ra_dav:version-url V 56 /svn/services/!svn/ver/683/clamsmtp/scripts/clamsmtpd.sh END virus_action.sh K 25 svn:wc:ra_dav:version-url V 59 /svn/services/!svn/ver/683/clamsmtp/scripts/virus_action.sh END clamsmtp-1.10/scripts/clamsmtpd.sh0000644000175000017500000000136410577653460014224 00000000000000#!/bin/sh ########################################################################### # CONFIGURATION # Most configuration options are found in the clamsmtpd.conf file. # For more info see: # man clamsmtpd.conf # The prefix clamsmtpd was installed to prefix=/usr/local/ # The location for pid file piddir=/var/run/clamav/ ########################################################################### # SCRIPT case $1 in start) mkdir -p $piddir $prefix/sbin/clamsmtpd -p $piddir/clamsmtpd.pid echo -n "clamsmtpd " ;; stop) [ -f $piddir/clamsmtpd.pid ] && kill `cat $piddir/clamsmtpd.pid` echo -n "clamsmtpd " ;; *) echo "usage: clamsmptd.sh {start|stop}" >&2 ;; esac clamsmtp-1.10/scripts/virus_action.sh0000644000175000017500000000244410577653460014745 00000000000000#!/bin/sh # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! # WARNING WARNING WARNING WARNING WARNING WARNING WARNING # # By using variables passed in from clamsmtpd in file # manipulation commands without escaping their contents # you are opening yourself up to REMOTE COMPROMISE. You # have been warned. Do NOT do the following unless you # want to be screwed big time: # # mv $EMAIL "$SENDER.eml" # # An attacker can use the above command to compromise your # computer. The only variable that is guaranteed safe in # this regard is $EMAIL. # # The following script does not escape its variables # because it only uses them in safe ways. # # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! # A sample script for virus actions. When testing make sure # everything can run as the clamav (or relevant) user. file="/path/to/virus.log" dir="/path/to/quarantine/" exec 1>>$file exec 2>>$file # Add some fun log lines to the log file echo "-------------------------------------------------------" echo Sender $SENDER echo Recipients $RECIPIENTS echo Virus $VIRUS echo "-------------------------------------------------------" # Move the virus file to another directory # This only works if Quarantine is enabled if [ -n "$EMAIL" ]; then mv "$EMAIL" "$dir" fi clamsmtp-1.10/common/0000777000175000017500000000000011032211477011546 500000000000000clamsmtp-1.10/common/.svn/0000777000175000017500000000000011032211505012422 500000000000000clamsmtp-1.10/common/.svn/text-base/0000777000175000017500000000000010577653532014345 500000000000000clamsmtp-1.10/common/.svn/text-base/stringx.c.svn-base0000444000175000017500000001006410634000374017617 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #include #include #include #include #include #include #include "usuals.h" #include "compat.h" #include "stringx.h" /* ---------------------------------------------------------------------------------- * Parsing */ int is_first_word(const char* line, const char* word, int len) { ASSERT(line); ASSERT(word); ASSERT(len > 0); while(*line && isspace(*line)) line++; if(strncasecmp(line, word, len) != 0) return 0; line += len; return !*line || isspace(*line); } int check_first_word(const char* line, const char* word, int len, char* delims) { const char* t; int found = 0; ASSERT(line); ASSERT(word); ASSERT(len > 0); t = line; while(*t && strchr(delims, *t)) t++; if(strncasecmp(t, word, len) != 0) return 0; t += len; while(*t && strchr(delims, *t)) { found = 1; t++; } return (!*t || found) ? t - line : 0; } int is_last_word(const char* line, const char* word, int len) { const char* t; ASSERT(line); ASSERT(word); ASSERT(len > 0); t = line + strlen(line); while(t > line && isspace(*(t - 1))) --t; if(t - len < line) return 0; return strncasecmp(t - len, word, len) == 0; } int is_blank_line(const char* line) { /* Small optimization */ if(!*line) return 1; while(*line && isspace(*line)) line++; return *line == 0; } char* trim_start(const char* data) { while(*data && isspace(*data)) ++data; return (char*)data; } char* trim_end(char* data) { char* t = data + strlen(data); while(t > data && isspace(*(t - 1))) { t--; *t = 0; } return data; } char* trim_space(char* data) { data = (char*)trim_start(data); return trim_end(data); } /* String to bool helper function */ int strtob(const char* str) { if(strcasecmp(str, "0") == 0 || strcasecmp(str, "no") == 0 || strcasecmp(str, "false") == 0 || strcasecmp(str, "f") == 0 || strcasecmp(str, "off") == 0) return 0; if(strcasecmp(str, "1") == 0 || strcasecmp(str, "yes") == 0 || strcasecmp(str, "true") == 0 || strcasecmp(str, "t") == 0 || strcasecmp(str, "on") == 0) return 1; return -1; } clamsmtp-1.10/common/.svn/text-base/smtppass.h.svn-base0000444000175000017500000002214311032210553017774 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef __SMTPPASS_H__ #define __SMTPPASS_H__ /* Forward declarations */ struct sockaddr_any; struct spctx; /* ----------------------------------------------------------------------------- * BUFFERED MULTIPLEXING IO * * This isn't meant to be a replacement library for all sorts of IO * only things that are currently used go here. */ /* * A generous maximum line length. It needs to be longer than * a full path on this system can be, because we pass the file * name to clamd. */ #if 2000 > MAXPATHLEN #define SP_LINE_LENGTH 2000 #else #define SP_LINE_LENGTH (MAXPATHLEN + 128) #endif typedef struct spio { int fd; /* The file descriptor wrapped */ const char* name; /* The name for logging */ time_t last_action; /* Time of last action on descriptor */ char peername[MAXPATHLEN]; /* Name of the peer on other side of socket */ char localname[MAXPATHLEN]; /* Address where we accepted the connection */ /* Internal use only */ char line[SP_LINE_LENGTH]; char* _nx; size_t _ln; } spio_t; #define spio_valid(io) ((io) && (io)->fd != -1) /* Setup the io structure (allocated elsewhere) */ void spio_init(spio_t* io, const char* name); /* Attach an open descriptor to a socket, optionally returning the peer */ void spio_attach(struct spctx* ctx, spio_t* io, int fd, struct sockaddr_any* peer); /* Connect and disconnect from sockets */ int spio_connect(struct spctx* ctx, spio_t* io, const struct sockaddr_any* sany, const char* addrname); void spio_disconnect(struct spctx* ctx, spio_t* io); #define SPIO_TRIM 0x00000001 #define SPIO_DISCARD 0x00000002 #define SPIO_QUIET 0x00000004 /* Read a line from a socket. Use options above. Line * will be found in io->line */ int spio_read_line(struct spctx* ctx, spio_t* io, int opts); /* Write data to socket (must supply line endings if needed). * Guaranteed to accept all data or fail. */ int spio_write_data(struct spctx* ctx, spio_t* io, const char* data); int spio_write_dataf(struct spctx* ctx, spio_t* io, const char* fmt, ...); int spio_write_data_raw(struct spctx* ctx, spio_t* io, const unsigned char* buf, int len); /* Empty the given socket */ void spio_read_junk(struct spctx* sp, spio_t* io); /* Pass up to 31 spio_t*, followed by NULL. Returns bitmap of ready for reading */ unsigned int spio_select(struct spctx* ctx, ...); /* ----------------------------------------------------------------------------- * SMTP PASS THROUGH FUNCTIONALITY */ /* Log lines have to be under roughly 900 chars otherwise * they get truncated by syslog. */ #define SP_LOG_LINE_LEN 768 typedef struct spctx { unsigned int id; /* Identifier for the connection */ spio_t client; /* Connection to client */ spio_t server; /* Connection to server */ FILE* cachefile; /* The file handle for the cached file */ char cachename[MAXPATHLEN]; /* The name of the file that we cache into */ char logline[SP_LOG_LINE_LEN]; /* Log line */ char* sender; /* The email of the sender */ char* recipients; /* The email of the recipients */ char* xforwardaddr; /* The IP address proxied for */ char* xforwardhelo; /* The HELO/EHLO proxied for */ int _crlf; /* Private data */ } spctx_t; /* * sp_init initializes the SMTP Pass-Through functionality * The name passed is the name of the app */ void sp_init(const char* name); /* * This starts up the smtp pass thru program. It will call * the cb_* functions as appropriate. */ int sp_run(const char* configfile, const char* pidfile, int dbg_level); /* * Mark the application as shutting down. * A signal will interupt most IO. */ void sp_quit(); /* * Check if the application has been marked to quit. * Useful for checking after interupted IO. */ int sp_is_quit(); /* * Called to cleanup SMTP Pass-Through functionality just * before the application quits. */ void sp_done(); /* * clamsmtpd used to accept command line args. In order to * process those args it needs to send the values to the * config file routines. This is how it does that. */ #ifdef SP_LEGACY_OPTIONS int sp_parse_option(const char* name, const char* option); #endif /* * The following functions are to be called from within * the spc_check_data function. */ /* * Adds a piece of info to the log line */ void sp_add_log(spctx_t* ctx, char* prefix, char* line); /* * Reads a line of DATA from client. Or less than a line if * line is longer than LINE_LENGTH. No trimming or anything * is done on the read line. This will end automatically * when . is detected (in which case 0 will * be returned). The data is returned in data. */ int sp_read_data(spctx_t* ctx, const char** data); /* * Writes a line (or piece) of data to a file buffer which is * later sent to the client using sp_done_data. Calling it with * a NULL buffer closes the cache file. Guaranteed to accept * all data given to it or fail. */ int sp_write_data(spctx_t* ctx, const char* buf, int buflen); /* * Sends all DATA from the client into the cache. The cache * file is then available (in spctx_t->cachename) for use. */ int sp_cache_data(spctx_t* ctx); /* * Sends the data in file buffer off to server. This is * completes a successful mail transfer. */ int sp_done_data(spctx_t* ctx, const char *header); /* * Fails the data, deletes any temp data, and sends given * status to client or if NULL then SMTP_DATAFAILED */ int sp_fail_data(spctx_t* ctx, const char* smtp_status); /* * Setup the environment with context info. This is useful * if you're going to fork another process. Be sure to exec * soon after to prevent the strings from going out of scope. */ void sp_setup_forked(spctx_t* ctx, int file); /* * Log a message. levels are syslog levels. Syntax is just * like printf etc.. Can specify a ctx of NULL in which case * no connection prefix is prepended. */ void sp_message(spctx_t* ctx, int level, const char* msg, ...); void sp_messagex(spctx_t* ctx, int level, const char* msg, ...); /* * Lock or unlock the main mutex around thread common * functionality. */ void sp_lock(); void sp_unlock(); /* ----------------------------------------------------------------------------- * CALLBACKS IMPLMEMENTED BY PROGRAM */ /* * The following functions create and destroy contexts for a new * thread. Perform initialization in there and return a spctx * structure for the thread to use. Return NULL failed. Be sure * to log message. */ extern spctx_t* cb_new_context(); extern void cb_del_context(spctx_t* ctx); /* * Called when the data section of an email is being transferred. * Once inside this function you can transfer files using * sp_read_data, sp_write_data. * * After scanning or figuring out the status call either * sp_done_data or sp_fail_data. Most failures should be handled * internally using sp_fail_data, unless it's an out of memory * condition, or sp_fail_data failed. */ extern int cb_check_data(spctx_t* ctx); /* * Parse options from the config file. The memory for these * options will stay around until sp_done is called. Return 0 * for unrecognized options, 1 for recognized, and quit the * program for invalid. */ extern int cb_parse_option(const char* name, const char* value); #endif /* __SMTPPASS_H__ */ clamsmtp-1.10/common/.svn/text-base/usuals.h.svn-base0000444000175000017500000000443310634000374017445 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef __USUALS_H__ #define __USUALS_H__ #include #include "config.h" #include #include #include #include #include "compat.h" #ifndef NULL #define NULL 0 #endif #ifndef max #define max(a,b) (((a) > (b)) ? (a) : (b)) #endif #ifndef min #define min(a,b) (((a) < (b)) ? (a) : (b)) #endif #define countof(x) (sizeof(x) / sizeof(x[0])) #ifdef _DEBUG #include "assert.h" #define ASSERT(x) assert(x) #else #define ASSERT(x) #endif #define KL(s) ((sizeof(s) - 1) / sizeof(char)) #define RETURN(x) { ret = (x); goto cleanup; } #endif /* __USUALS_H__ */ clamsmtp-1.10/common/.svn/text-base/compat.c.svn-base0000444000175000017500000002743210634000374017413 00000000000000/* * Copyright (c) 2004-2005, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * * * PORTIONS FROM OPENBSD: ------------------------------------------------- * * Copyright (c) 1998 Todd C. Miller * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "usuals.h" #include "compat.h" #include #include #ifndef HAVE_REALLOCF void* reallocf(void* ptr, size_t size) { void* ret = realloc(ptr, size); if(!ret && size) free(ptr); return ret; } #endif #ifndef HAVE_STRLWR char* strlwr(char* s) { char* t = s; while(*t) { *t = tolower(*t); t++; } return s; } #endif #ifndef HAVE_STRUPR char* strupr(char* s) { char* t = s; while(*t) { *t = toupper(*t); t++; } return s; } #endif #ifndef HAVE_STRLCPY size_t strlcpy(char* dst, const char* src, size_t siz) { char* d = dst; const char* s = src; size_t n = siz; /* Copy as many bytes as will fit */ if(n != 0 && --n != 0) { do { if((*d++ = *s++) == 0) break; } while(--n != 0); } /* Not enough room in dst, add NUL and traverse rest of src */ if(n == 0) { if(siz != 0) *d = '\0'; /* NUL-terminate dst */ while (*s++) ; } return s - src - 1; /* count does not include NUL */ } #endif #ifndef HAVE_STRLCAT size_t strlcat(char* dst, const char* src, size_t siz) { char* d = dst; const char* s = src; size_t n = siz; size_t dlen; /* Find the end of dst and adjust bytes left but don't go past end */ while(n-- != 0 && *d != '\0') d++; dlen = d - dst; n = siz - dlen; if(n == 0) return dlen + strlen(s); while(*s != '\0') { if(n != 1) { *d++ = *s; n--; } s++; } *d = '\0'; return dlen + (s - src); /* count does not include NUL */ } #endif #ifndef HAVE_STRCASESTR const char* strcasestr(const char *s, const char *find) { char c, sc; size_t len; if((c = *find++) != 0) { c = tolower((unsigned char)c); len = strlen(find); do { do { if((sc = *s++) == 0) return (NULL); } while((char)tolower((unsigned char)sc) != c); } while (strncasecmp(s, find, len) != 0); s--; } return((const char*)s); } #endif #ifndef HAVE_SETENV #include int setenv(const char* name, const char* value, int overwrite) { char* t; int r; if(getenv(name) && !overwrite) return 0; t = (char*)malloc((strlen(name) + strlen(value) + 2) * sizeof(char)); if(!t) return -1; sprintf(t, "%s=%s", name, value); r = putenv(t); if(r != 0) free(t); return r; } #endif #ifndef HAVE_DAEMON #include #include #include #include #include int daemon(int nochdir, int noclose) { struct sigaction osa, sa; int oerrno, fd, osa_ok; pid_t newgrp; /* A SIGHUP may be thrown when the parent exits below. */ sigemptyset(&sa.sa_mask); sa.sa_handler = SIG_IGN; sa.sa_flags = 0; osa_ok = sigaction(SIGHUP, &sa, &osa); switch(fork()) { case -1: return -1; case 0: break; default: _exit(0); } newgrp = setsid(); oerrno = errno; if(osa_ok != -1) sigaction(SIGHUP, &osa, NULL); if(newgrp == -1) { errno = oerrno; return -1; } if(!nochdir) chdir("/"); if(!noclose && (fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) { dup2(fd, STDIN_FILENO); dup2(fd, STDOUT_FILENO); dup2(fd, STDERR_FILENO); if(fd > 2) close(fd); } return 0; } #endif #ifndef HAVE_GETLINE ssize_t getline(char** lineptr, size_t* n, FILE* stream) { return getdelim(lineptr, n, '\n', stream); } #endif #ifndef HAVE_GETDELIM ssize_t getdelim(char** lineptr, size_t* n, int delim, FILE* stream) { size_t written = 0; int allocated, ch; ssize_t ret = -1; char* p; if(!n || !lineptr || !stream) { errno = EINVAL; return -1; } /* Track whether we allocated this or not */ allocated = !(*lineptr); #ifdef HAVE_FLOCKFILE /* Affects performance on Solaris. */ flockfile(stream); #endif for(;;) { if(!*lineptr) *n = 0; /* Reallocate if we need more space */ if(written == *n - 1) { *n = *n ? *n * 2 : 256; if(!(p = (char*)realloc(*lineptr, *n))) { if(allocated && *lineptr) free(*lineptr); errno = ENOMEM; ret = -1; goto finally; } *lineptr = p; } while(written < *n - 1) { #ifdef HAVE_FLOCKFILE ch = getc_unlocked(stream); #else ch = fgetc(stream); #endif if(ferror(stream)) { if(allocated && *lineptr) free(*lineptr); ret = -1; goto finally; } if(ch != EOF) (*lineptr)[written++] = ch; /* Done, null terminate, return */ if(ch == EOF || ch == delim) { (*lineptr)[written] = 0; ret = written ? written : -1; goto finally; } } } finally: #ifdef HAVE_FLOCKFILE funlockfile(stream); #endif return ret; } #endif #ifndef HAVE_ERR_H #include #include #include #include extern char** __argv; static const char* calc_prog_name() { static char prognamebuf[256]; static int prepared = 0; if(!prepared) { const char* beg = strrchr(__argv[0], '\\'); const char* temp = strrchr(__argv[0], '/'); beg = (beg > temp) ? beg : temp; beg = (beg) ? beg + 1 : __argv[0]; temp = strrchr(__argv[0], '.'); temp = (temp > beg) ? temp : __argv[0] + strlen(__argv[0]); if((temp - beg) > 255) temp = beg + 255; strncpy(prognamebuf, beg, temp - beg); prognamebuf[temp - beg] = 0; prepared = 1; } return prognamebuf; } static FILE* err_file; /* file to use for error output */ /* * This is declared to take a `void *' so that the caller is not required * to include first. However, it is really a `FILE *', and the * manual page documents it as such. */ void err_set_file(void *fp) { if (fp) err_file = fp; else err_file = stderr; } void err(int eval, const char *fmt, ...) { va_list ap; va_start(ap, fmt); verrc(eval, errno, fmt, ap); va_end(ap); } void verr(int eval, const char *fmt, va_list ap) { verrc(eval, errno, fmt, ap); } void errc(int eval, int code, const char *fmt, ...) { va_list ap; va_start(ap, fmt); verrc(eval, code, fmt, ap); va_end(ap); } void verrc(int eval, int code, const char *fmt, va_list ap) { if (err_file == 0) err_set_file((FILE *)0); fprintf(err_file, "%s: ", calc_prog_name()); if (fmt != NULL) { vfprintf(err_file, fmt, ap); fprintf(err_file, ": "); } fprintf(err_file, "%s\n", strerror(code)); exit(eval); } void errx(int eval, const char *fmt, ...) { va_list ap; va_start(ap, fmt); verrx(eval, fmt, ap); va_end(ap); } void verrx(int eval, const char *fmt, va_list ap) { if (err_file == 0) err_set_file((FILE *)0); fprintf(err_file, "%s: ", calc_prog_name()); if (fmt != NULL) vfprintf(err_file, fmt, ap); fprintf(err_file, "\n"); exit(eval); } void warn(const char *fmt, ...) { va_list ap; va_start(ap, fmt); vwarnc(errno, fmt, ap); va_end(ap); } void vwarn(const char *fmt, va_list ap) { vwarnc(errno, fmt, ap); } void warnc(int code, const char *fmt, ...) { va_list ap; va_start(ap, fmt); vwarnc(code, fmt, ap); va_end(ap); } void vwarnc(int code, const char *fmt, va_list ap) { if (err_file == 0) err_set_file((FILE *)0); fprintf(err_file, "%s: ", calc_prog_name()); if (fmt != NULL) { vfprintf(err_file, fmt, ap); fprintf(err_file, ": "); } fprintf(err_file, "%s\n", strerror(code)); } void warnx(const char *fmt, ...) { va_list ap; va_start(ap, fmt); vwarnx(fmt, ap); va_end(ap); } void vwarnx(const char *fmt, va_list ap) { if(err_file == 0) err_set_file((FILE*)0); fprintf(err_file, "%s: ", calc_prog_name()); if(fmt != NULL) vfprintf(err_file, fmt, ap); fprintf(err_file, "\n"); } #endif clamsmtp-1.10/common/.svn/text-base/stringx.h.svn-base0000444000175000017500000000412110634000374017621 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef __STRINGX_H__ #define __STRINGX_H__ int check_first_word(const char* line, const char* word, int len, char* delims); int is_first_word(const char* line, const char* word, int len); int is_last_word(const char* line, const char* word, int len); int is_blank_line(const char* line); char* trim_start(const char* data); char* trim_end(char* data); char* trim_space(char* data); int strtob(const char* str); #endif /* __STRINGX_H__ */ clamsmtp-1.10/common/.svn/text-base/sock_any.c.svn-base0000444000175000017500000002147010634000374017732 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #include #include #include #include #include #include #include #include #include "sock_any.h" #include #define LOCALHOST_ADDR 0x7F000001 int sock_any_pton(const char* addr, struct sockaddr_any* any, int opts) { size_t l; char buf[256]; char* t; char* t2; int defport = (opts & 0xFFFF); memset(any, 0, sizeof(*any)); /* Just a port? */ do { #define PORT_CHARS "0123456789" #define PORT_MIN 1 #define PORT_MAX 5 int port = 0; l = strspn(addr, PORT_CHARS); if(l < PORT_MIN || l > PORT_MAX || addr[l] != 0) break; port = strtol(addr, &t2, 10); if(*t2 || port <= 0 || port >= 65536) break; any->s.in.sin_port = htons(port); /* Fill in the type based on defaults */ #ifdef HAVE_INET6 if(opts & SANY_OPT_DEFINET6) any->s.in.sin_family = AF_INET6; else #endif any->s.in.sin_family = AF_INET; /* Fill in the address based on defaults */ if(opts & SANY_OPT_DEFLOCAL) { #ifdef HAVE_INET6 if(opts & SANY_OPT_DEFINET6) memcpy(&(any->s.in.sin6_addr), &in6addr_loopback, sizeof(struct in6_addr)); else #endif any->s.in.sin_addr.s_addr = htonl(INADDR_LOOPBACK); } /* * Note the 'any' option is the default since we zero out * the entire structure above. */ any->namelen = sizeof(any->s.in); return AF_INET; } while(0); /* Look and see if we can parse an ipv4 address */ do { #define IPV4_PORT_CHARS #define IPV4_CHARS "0123456789." #define IPV4_MIN 3 #define IPV4_MAX 21 int port = 0; t = NULL; l = strlen(addr); if(l < IPV4_MIN || l > IPV4_MAX) break; strcpy(buf, addr); /* Find the last set that contains just numbers */ l = strspn(buf, IPV4_CHARS); if(l < IPV4_MIN) break; /* Either end of string or port */ if(buf[l] != 0 && buf[l] != ':') break; /* Get the port out */ if(buf[l] != 0) { t = buf + l + 1; buf[l] = 0; } if(t) { port = strtol(t, &t2, 10); if(*t2 || port <= 0 || port >= 65536) break; } any->s.in.sin_family = AF_INET; any->s.in.sin_port = htons((unsigned short)(port <= 0 ? defport : port)); if(inet_pton(AF_INET, buf, &(any->s.in.sin_addr)) <= 0) break; any->namelen = sizeof(any->s.in); return AF_INET; } while(0); #ifdef HAVE_INET6 do { #define IPV6_CHARS "0123456789:" #define IPV6_MIN 3 #define IPV6_MAX 51 int port = -1; t = NULL; l = strlen(addr); if(l < IPV6_MIN || l > IPV6_MAX) break; /* If it starts with a '[' then we can get port */ if(buf[0] == '[') { port = 0; addr++; } strcpy(buf, addr); /* Find the last set that contains just numbers */ l = strspn(buf, IPV6_CHARS); if(l < IPV6_MIN) break; /* Either end of string or port */ if(buf[l] != 0) { /* If had bracket, then needs to end with a bracket */ if(port != 0 || buf[l] != ']') break; /* Get the port out */ t = buf + l + 1; if(*t = ':') t++; } if(t) { port = strtol(t, &t, 10); if(*t || port <= 0 || port >= 65536) break; } any->s.in6.sin6_family = AF_INET6; any->s.in6.sin6_port = htons((unsigned short)port <= 0 : defport : port); if(inet_pton(AF_INET6, buf, &(any->s.in6.sin6_addr)) >= 0) break; any->namelen = sizeof(any->s.in6); return AF_INET6; } while(0); #endif /* A unix socket path */ do { /* No colon and must have a path component */ if(strchr(addr, ':') || !strchr(addr, '/')) break; l = strlen(addr); if(l >= sizeof(any->s.un.sun_path)) break; any->s.un.sun_family = AF_UNIX; strcpy(any->s.un.sun_path, addr); any->namelen = sizeof(any->s.un) - (sizeof(any->s.un.sun_path) - l); return AF_UNIX; } while(0); /* A DNS name and a port? */ do { struct addrinfo* res; int port = 0; t = NULL; l = strlen(addr); if(l >= 255 || !isalpha(addr[0])) break; /* Some basic illegal character checks */ if(strcspn(addr, " /\\") != l) break; strcpy(buf, addr); /* Find the last set that contains just numbers */ t = strchr(buf, ':'); if(t) { *t = 0; t++; } if(t) { port = strtol(t, &t2, 10); if(*t2 || port <= 0 || port >= 65536) break; } /* Try and resolve the domain name */ if(getaddrinfo(buf, NULL, NULL, &res) != 0 || !res) break; memcpy(&(any->s.a), res->ai_addr, sizeof(struct sockaddr)); any->namelen = res->ai_addrlen; freeaddrinfo(res); port = htons((unsigned short)(port <= 0 ? defport : port)); switch(any->s.a.sa_family) { case PF_INET: any->s.in.sin_port = port; break; #ifdef HAVE_INET6 case PF_INET6: any->s.in6.sin6_port = port; break; #endif }; return any->s.a.sa_family; } while(0); return -1; } int sock_any_ntop(const struct sockaddr_any* any, char* addr, size_t addrlen, int opts) { int len = 0; int port = 0; switch(any->s.a.sa_family) { case AF_UNIX: len = strlen(any->s.un.sun_path); if(addrlen < len + 1) { errno = ENOSPC; return -1; } strcpy(addr, any->s.un.sun_path); break; case AF_INET: if(inet_ntop(any->s.a.sa_family, &(any->s.in.sin_addr), addr, addrlen) == NULL) return -1; port = ntohs(any->s.in.sin_port); break; #ifdef HAVE_INET6 case AF_INET6: if(inet_ntop(any->s.a.sa_family, &(any->s.in6.sin6_addr), addr, addrlen) == NULL) return -1; port = ntohs(any->s.in6.sin6_port); break; #endif default: errno = EAFNOSUPPORT; return -1; } if(!(opts & SANY_OPT_NOPORT) && port != 0) { strncat(addr, ":", addrlen); addr[addrlen - 1] = 0; len = strlen(addr); addr += len; addrlen -= len; snprintf(addr, addrlen, "%d", port); } return 0; } int sock_any_cmp(const struct sockaddr_any* a1, const struct sockaddr_any* a2, int opts) { if(a1->s.a.sa_family != a2->s.a.sa_family) return -1; switch(a1->s.a.sa_family) { case AF_UNIX: return strcmp(a1->s.un.sun_path, a2->s.un.sun_path); case AF_INET: if(memcmp(&(a1->s.in.sin_addr), &(a2->s.in.sin_addr), sizeof(a2->s.in.sin_addr)) != 0) return -1; if(!(opts && SANY_OPT_NOPORT) && a1->s.in.sin_port != a2->s.in.sin_port) return -1; return 0; #ifdef HAVE_INET6 case AF_INET6: if(memcmp(&(a1->s.in6.sin6_addr), &(a2->s.in6.sin6_addr), sizeof(a2->s.in6.sin6_addr)) != 0) return -1; if(!(opts && SANY_OPT_NOPORT) && a1->s.in6.sin6_port != a2->s.in6.sin6_port) return -1; return 0; #endif default: errno = EAFNOSUPPORT; return -1; } } clamsmtp-1.10/common/.svn/text-base/compat.h.svn-base0000444000175000017500000000736610634000374017424 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef _COMPAT_H_ #define _COMPAT_H_ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #ifndef HAVE_STDARG_H #error ERROR: Must have a working stdarg.h header #else #include #endif #ifdef WITH_DMALLOC #include "dmalloc.h" #endif #ifndef HAVE_REALLOCF void* reallocf(void* p, size_t sz); #endif #include #if HAVE_ERR_MUTEX == 1 # define MUTEX_TYPE PTHREAD_MUTEX_ERRORCHECK_NP #else # if HAVE_ERR_MUTEX == 2 # define MUTEX_TYPE PTHREAD_MUTEX_ERRORCHECK # else # undef MUTEX_TYPE # endif #endif #ifndef HAVE_STRLWR char* strlwr(char* s); #endif #ifndef HAVE_STRUPR char* strupr(char* s); #endif #ifndef HAVE_STRLCAT size_t strlcat(char *dst, const char *src, size_t size); #endif #ifndef HAVE_STRLCPY size_t strlcpy(char *dst, const char *src, size_t size); #endif #ifndef HAVE_STRCASESTR const char* strcasestr(const char *s, const char *find); #endif #ifndef HAVE_SETENV int setenv(const char* name, const char* value, int overwrite); #endif #ifndef HAVE_DAEMON int daemon(int nochdir, int noclose); #endif #ifndef HAVE_GETLINE ssize_t getline(char** lineptr, size_t* n, FILE* stream); #endif #ifndef HAVE_GETDELIM ssize_t getdelim(char** lineptr, size_t* n, int delim, FILE* stream); #endif #ifdef HAVE_ERR_H #include #else #include void err_set_file(void *fp); void err_set_exit(void (*ef)(int)); void err(int eval, const char *fmt, ...); void verr(int eval, const char *fmt, va_list ap); void errc(int eval, int code, const char *fmt, ...); void verrc(int eval, int code, const char *fmt, va_list ap); void errx(int eval, const char *fmt, ...); void verrx(int eval, const char *fmt, va_list ap); void warn(const char *fmt, ...); void vwarn(const char *fmt, va_list ap); void warnc(int code, const char *fmt, ...); void vwarnc(int code, const char *fmt, va_list ap); void warnx(const char *fmt, ...); void vwarnx(const char *fmt, va_list ap); #endif #ifdef HAVE_PATHS_H #include #endif #ifndef _PATH_DEVNULL #define _PATH_DEVNULL "/dev/null" #endif #ifndef _PATH_TMP #define _PATH_TMP "/tmp" #endif #endif /* _COMPAT_H_ */ clamsmtp-1.10/common/.svn/text-base/sppriv.h.svn-base0000444000175000017500000000605410634000374017455 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef __SPPRIV_H__ #define __SPPRIV_H__ #include "smtppass.h" typedef struct spstate { /* Settings ------------------------------- */ int debug_level; /* The level to print stuff to console */ int max_threads; /* Maximum number of threads to process at once */ struct timeval timeout; /* Timeout for communication */ int keepalives; /* Send server keep alives at this interval */ int transparent; /* Transparent proxying */ int xclient; /* Send XFORWARD info */ const char* directory; /* The temp directory */ const char* user; /* User to run as */ const char* pidfile; /* The pid file for daemon */ const char* header; /* A header to include in the email */ struct sockaddr_any outaddr; /* The outgoing address */ const char* outname; struct sockaddr_any listenaddr; /* Address to listen on */ const char* listenname; /* State --------------------------------- */ const char* name; /* The name of the program */ int quit; /* Quit the process */ int daemonized; /* Whether process is daemonized or not */ /* Internal Use ------------------------- */ char* _p; } spstate_t; extern spstate_t g_state; #endif /* __SPPRIV_H__ */ clamsmtp-1.10/common/.svn/text-base/smtppass.c.svn-base0000444000175000017500000016722211032210553017777 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stefan Walter * Andreas Steinmetz * Rubio Vaughan * Olivier Beyssac */ #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "usuals.h" #ifdef LINUX_TRANSPARENT_PROXY #include #endif #include "compat.h" #include "sock_any.h" #include "stringx.h" #include "sppriv.h" /* ----------------------------------------------------------------------- * STRUCTURES */ typedef struct spthread { pthread_t tid; /* Written to by the main thread */ int fd; /* The file descriptor or -1 */ } spthread_t; /* ----------------------------------------------------------------------- * DATA */ #define CRLF "\r\n" #define SMTP_TOOLONG "500 Line too long" CRLF #define SMTP_STARTBUSY "421 Server busy, too many connections" CRLF #define SMTP_STARTFAILED "421 Local Error, cannot start thread" CRLF #define SMTP_DATAINTERMED "354 Start mail input; end with ." CRLF #define SMTP_FAILED "451 Local Error" CRLF #define SMTP_NOTSUPP "502 Command not implemented" CRLF #define SMTP_NOTAUTH "554 Insufficient authorization" CRLF #define SMTP_OK "250 Ok" CRLF #define SMTP_REJPREFIX "550 Content Rejected; " #define SMTP_DATA "DATA" CRLF #define SMTP_NOOP "NOOP" CRLF #define SMTP_RSET "RSET" CRLF #define SMTP_XCLIENT "XCLIENT ADDR=%s" CRLF #define SMTP_BANNER "220 smtp.passthru" CRLF #define SMTP_HELO_RSP "250 smtp.passthru" CRLF #define SMTP_EHLO_RSP "250-smtp.passthru" CRLF #define SMTP_FEAT_RSP "250 XFILTERED" CRLF #define SMTP_DELIMS "\r\n\t :" #define SMTP_MULTI_DELIMS " -" #define ESMTP_PIPELINE "PIPELINING" #define ESMTP_TLS "STARTTLS" #define ESMTP_CHUNK "CHUNKING" #define ESMTP_BINARY "BINARYMIME" #define ESMTP_CHECK "CHECKPOINT" #define ESMTP_XCLIENT "XCLIENT" #define ESMTP_XEXCH50 "XEXCH50" #define HELO_CMD "HELO" #define EHLO_CMD "EHLO" #define FROM_CMD "MAIL FROM" #define TO_CMD "RCPT TO" #define DATA_CMD "DATA" #define RSET_CMD "RSET" #define STARTTLS_CMD "STARTTLS" #define BDAT_CMD "BDAT" #define XCLIENT_CMD "XCLIENT" #define XFORWARD_CMD "XFORWARD" #define DATA_END_SIG "." CRLF #define DATA_RSP "354" #define OK_RSP "250" #define START_RSP "220" #define RCVD_HEADER "Received:" /* The set of delimiters that can be present between config and value */ #define CFG_DELIMS ": \t" /* Maximum length of the header argument */ #define MAX_HEADER_LENGTH 1024 /* * asctime_r manpage: "stores the string in a user-supplied buffer of * length at least 26". We'll need some more bytes to put timezone * information behind */ #define MAX_DATE_LENGTH 64 #define LINE_TOO_LONG(l) ((l) >= (SP_LINE_LENGTH - 2)) /* ----------------------------------------------------------------------- * CONFIGURATION OPTIONS * * - Be sure that your configuration option needs to go into this * file. More likely it'll go into clamsmtpd.c * - When adding configuration options follow the instructions in * clamsmtpd.c, except add option to spstate_t (sppriv.h) and parse in * sp_parse_option (below) */ #define CFG_MAXTHREADS "MaxConnections" #define CFG_TIMEOUT "TimeOut" #define CFG_OUTADDR "OutAddress" #define CFG_LISTENADDR "Listen" #define CFG_TRANSPARENT "TransparentProxy" #define CFG_DIRECTORY "TempDirectory" #define CFG_KEEPALIVES "KeepAlives" #define CFG_USER "User" #define CFG_PIDFILE "PidFile" #define CFG_XCLIENT "XClient" /* ----------------------------------------------------------------------- * DEFAULT SETTINGS */ #define DEFAULT_SOCKET "10025" #define DEFAULT_PORT 10025 #define DEFAULT_MAXTHREADS 64 #define DEFAULT_TIMEOUT 180 #define DEFAULT_KEEPALIVES 0 /* ----------------------------------------------------------------------- * GLOBALS */ spstate_t g_state; /* The state and configuration of the daemon */ unsigned int g_unique_id = 0x00100000; /* For connection ids */ pthread_mutex_t g_mutex; /* The main mutex */ pthread_mutexattr_t g_mtxattr; /* ----------------------------------------------------------------------- * FORWARD DECLARATIONS */ static void on_quit(int signal); static void drop_privileges(); static void pid_file(int write); static void connection_loop(int sock); static void* thread_main(void* arg); static int smtp_passthru(spctx_t* ctx); static int make_connections(spctx_t* ctx, int client); static int read_server_response(spctx_t* ctx); static int parse_config_file(const char* configfile); static char* parse_address(char* line); static char* parse_xforward(char* line, const char* part); static const char* get_successful_rsp(const char* line, int* cont); static void do_server_noop(spctx_t* ctx); /* Used externally in some cases */ int sp_parse_option(const char* name, const char* option); /* ---------------------------------------------------------------------------------- * BASIC RUN FUNCTIONALITY */ void sp_init(const char* name) { int r; ASSERT(name); memset(&g_state, 0, sizeof(g_state)); sp_message(NULL, LOG_DEBUG, "%s (%s)", name, VERSION); /* Setup the defaults */ g_state.debug_level = -1; g_state.max_threads = DEFAULT_MAXTHREADS; g_state.timeout.tv_sec = DEFAULT_TIMEOUT; g_state.keepalives = DEFAULT_KEEPALIVES; g_state.directory = _PATH_TMP; g_state.name = name; /* We need the default to parse into a useable form, so we do this: */ r = sp_parse_option(CFG_LISTENADDR, DEFAULT_SOCKET); ASSERT(r == 1); /* Create the main mutex and condition variable */ if(pthread_mutexattr_init(&g_mtxattr) != 0 || #ifdef HAVE_ERR_MUTEX pthread_mutexattr_settype(&g_mtxattr, MUTEX_TYPE) || #endif pthread_mutex_init(&g_mutex, &g_mtxattr) != 0) errx(1, "threading problem. can't create mutex or condition var"); } int sp_run(const char* configfile, const char* pidfile, int dbg_level) { int sock; int true = 1; ASSERT(configfile); ASSERT(g_state.name); if(!(dbg_level == -1 || dbg_level <= LOG_DEBUG)) errx(2, "invalid debug log level (must be between 1 and 4)"); g_state.debug_level = dbg_level; g_state.pidfile = pidfile; /* Now parse the configuration file */ if(parse_config_file(configfile) == -1) { /* * We used to do a check here before whether it was the default * configuration file or not, but we can't do that any longer * as it comes from the app. Usually lack of a configuration * file will cause the following checks to fail */ warnx("configuration file not found: %s", configfile); } /* This option has no default, but is required ... */ if(g_state.outname == NULL && !g_state.transparent) errx(2, "no " CFG_OUTADDR " specified."); /* ... unless we're in transparent proxy mode */ else if(g_state.outname != NULL && g_state.transparent) warnx("the " CFG_OUTADDR " option will be ignored when " CFG_TRANSPARENT " is enabled"); sp_messagex(NULL, LOG_DEBUG, "starting up (%s)...", VERSION); /* Drop privileges before daemonizing */ drop_privileges(); /* When set to this we daemonize */ if(g_state.debug_level == -1) { /* Fork a daemon nicely here */ if(daemon(0, 0) == -1) { sp_message(NULL, LOG_ERR, "couldn't run as daemon"); exit(1); } sp_messagex(NULL, LOG_DEBUG, "running as a daemon"); g_state.daemonized = 1; /* Open the system log */ openlog(g_state.name, 0, LOG_MAIL); } /* Handle some signals */ signal(SIGPIPE, SIG_IGN); signal(SIGHUP, SIG_IGN); signal(SIGINT, on_quit); signal(SIGTERM, on_quit); siginterrupt(SIGINT, 1); siginterrupt(SIGTERM, 1); /* Create the socket */ sock = socket(SANY_TYPE(g_state.listenaddr), SOCK_STREAM, 0); if(sock < 0) { sp_message(NULL, LOG_CRIT, "couldn't open socket"); exit(1); } fcntl(sock, F_SETFD, fcntl(sock, F_GETFD, 0) | FD_CLOEXEC); setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void *)&true, sizeof(true)); /* Unlink the socket file if it exists */ if(SANY_TYPE(g_state.listenaddr) == AF_UNIX) unlink(g_state.listenname); if(bind(sock, &SANY_ADDR(g_state.listenaddr), SANY_LEN(g_state.listenaddr)) != 0) { sp_message(NULL, LOG_CRIT, "couldn't bind to address: %s", g_state.listenname); exit(1); } sp_messagex(NULL, LOG_DEBUG, "created socket: %s", g_state.listenname); /* Let 5 connections queue up */ if(listen(sock, 5) != 0) { sp_message(NULL, LOG_CRIT, "couldn't listen on socket"); exit(1); } pid_file(1); sp_messagex(NULL, LOG_DEBUG, "accepting connections"); connection_loop(sock); pid_file(0); /* Our listen socket */ close(sock); sp_messagex(NULL, LOG_DEBUG, "stopped processing"); return 0; } void sp_quit() { /* The handler sets the flag and this also interrupts io */ kill(getpid(), SIGTERM); } int sp_is_quit() { return g_state.quit ? 1 : 0; } void sp_done() { /* Close the mutex */ pthread_mutex_destroy(&g_mutex); pthread_mutexattr_destroy(&g_mtxattr); if(g_state._p) free(g_state._p); memset(&g_state, 0, sizeof(g_state)); } static void on_quit(int signal) { g_state.quit = 1; } static void drop_privileges() { char* t; struct passwd* pw; uid_t uid; if(g_state.user) { if(geteuid() != 0) { sp_messagex(NULL, LOG_WARNING, "must be started as root to switch to user: %s", g_state.user); return; } uid = strtol(g_state.user, &t, 10); if(!t[0]) /* successful parse */ pw = getpwuid(uid); else /* must be a name */ pw = getpwnam(g_state.user); if(pw == NULL) errx(1, "couldn't look up user: %s", g_state.user); if(setgid(pw->pw_gid) == -1 || setuid(pw->pw_uid) == -1) err(1, "unable to switch to user: %s (uid %d, gid %d)", g_state.user, pw->pw_uid, pw->pw_gid); /* A paranoia check */ if(setreuid(-1, 0) == 0) err(1, "unable to completely drop privileges"); sp_messagex(NULL, LOG_DEBUG, "switched to user %s (uid %d, gid %d)", g_state.user, pw->pw_uid, pw->pw_gid); } if(geteuid() == 0) sp_messagex(NULL, LOG_WARNING, "running as root is NOT recommended"); } static void pid_file(int write) { if(!g_state.pidfile) return; if(write) { FILE* f = fopen(g_state.pidfile, "w"); if(f == NULL) { sp_message(NULL, LOG_ERR, "couldn't open pid file: %s", g_state.pidfile); } else { fprintf(f, "%d\n", (int)getpid()); if(ferror(f)) sp_message(NULL, LOG_ERR, "couldn't write to pid file: %s", g_state.pidfile); if(fclose(f) == EOF) sp_message(NULL, LOG_ERR, "couldn't write to pid file: %s", g_state.pidfile); } sp_messagex(NULL, LOG_DEBUG, "wrote pid file: %s", g_state.pidfile); } else { unlink(g_state.pidfile); sp_messagex(NULL, LOG_DEBUG, "removed pid file: %s", g_state.pidfile); } } static void connection_loop(int sock) { spthread_t* threads = NULL; int fd, i, x, r; /* Create the thread buffers */ threads = (spthread_t*)calloc(g_state.max_threads, sizeof(spthread_t)); if(!threads) { sp_messagex(NULL, LOG_CRIT, "out of memory"); return; } /* Now loop and accept the connections */ while(!sp_is_quit()) { fd = accept(sock, NULL, NULL); if(fd == -1) { switch(errno) { case EINTR: case EAGAIN: break; case ECONNABORTED: sp_message(NULL, LOG_ERR, "couldn't accept a connection"); break; default: sp_message(NULL, LOG_ERR, "couldn't accept a connection"); break; }; if(sp_is_quit()) break; continue; } /* Set timeouts on client */ if(setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &(g_state.timeout), sizeof(g_state.timeout)) < 0 || setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &(g_state.timeout), sizeof(g_state.timeout)) < 0) sp_message(NULL, LOG_DEBUG, "couldn't set timeouts on incoming connection"); fcntl(fd, F_SETFD, fcntl(fd, F_GETFD, 0) | FD_CLOEXEC); /* Look for thread and also clean up others */ for(i = 0; i < g_state.max_threads; i++) { /* Find a thread to run or clean up old threads */ if(threads[i].tid != 0) { sp_lock(); x = threads[i].fd; sp_unlock(); if(x == -1) { sp_messagex(NULL, LOG_DEBUG, "cleaning up completed thread"); pthread_join(threads[i].tid, NULL); threads[i].tid = 0; } #ifdef _DEBUG else { /* For debugging connection problems: */ sp_messagex(NULL, LOG_DEBUG, "active connection thread: %x", (int)threads[i].tid); } #endif } /* Start a new thread if neccessary */ if(fd != -1 && threads[i].tid == 0) { threads[i].fd = fd; r = pthread_create(&(threads[i].tid), NULL, thread_main, (void*)(threads + i)); if(r != 0) { errno = r; sp_message(NULL, LOG_ERR, "couldn't create thread"); write(fd, SMTP_STARTFAILED, KL(SMTP_STARTFAILED)); shutdown(fd, SHUT_RDWR); close(fd); fd = -1; break; } sp_messagex(NULL, LOG_DEBUG, "created thread for connection"); fd = -1; break; } } /* Check to make sure we have a thread */ if(fd != -1) { sp_messagex(NULL, LOG_ERR, "too many connections open (max %d). sent busy response", g_state.max_threads); write(fd, SMTP_STARTBUSY, KL(SMTP_STARTBUSY)); shutdown(fd, SHUT_RDWR); close(fd); fd = -1; } } sp_messagex(NULL, LOG_DEBUG, "waiting for threads to quit"); /* Quit all threads here */ for(i = 0; i < g_state.max_threads; i++) { /* Clean up quit threads */ if(threads[i].tid != 0) { if(threads[i].fd != -1) { sp_lock(); fd = threads[i].fd; threads[i].fd = -1; sp_unlock(); shutdown(fd, SHUT_RDWR); close(fd); } sp_messagex(NULL, LOG_DEBUG, "cleaning up completed thread"); pthread_join(threads[i].tid, NULL); threads[i].tid = 0; } } free(threads); } static spctx_t* init_thread(int fd) { spctx_t* ctx; ctx = cb_new_context(); if(ctx) { memset(ctx, 0, sizeof(*ctx)); spio_init(&(ctx->server), "SERVER"); spio_init(&(ctx->client), "CLIENT"); sp_lock(); /* Assign a unique id to the connection */ ctx->id = g_unique_id++; /* We don't care about wraps, but we don't want zero */ if(g_unique_id == 0) g_unique_id++; sp_unlock(); sp_messagex(ctx, LOG_DEBUG, "processing %d on thread %x", fd, (int)pthread_self()); /* Connect to the outgoing server ... */ if(make_connections(ctx, fd) == -1) { cb_del_context(ctx); ctx = NULL; } } return ctx; } static void cleanup_context(spctx_t* ctx) { ASSERT(ctx); if(ctx->cachefile) { fclose(ctx->cachefile); ctx->cachefile = NULL; } if(ctx->cachename[0]) { unlink(ctx->cachename); ctx->cachename[0] = 0; } if(ctx->recipients) { free(ctx->recipients); ctx->recipients = NULL; } if(ctx->sender) { free(ctx->sender); ctx->sender = NULL; } if(ctx->xforwardaddr) { free(ctx->xforwardaddr); ctx->xforwardaddr = NULL; } if(ctx->xforwardhelo) { free(ctx->xforwardhelo); ctx->xforwardhelo = NULL; } ctx->logline[0] = 0; } static void done_thread(spctx_t* ctx) { ASSERT(ctx); spio_disconnect(ctx, &(ctx->client)); spio_disconnect(ctx, &(ctx->server)); /* Clean up file stuff */ cleanup_context(ctx); cb_del_context(ctx); } static void* thread_main(void* arg) { spthread_t* thread = (spthread_t*)arg; spctx_t* ctx = NULL; int processing = 0; int ret = 0; int fd; ASSERT(thread); siginterrupt(SIGINT, 1); siginterrupt(SIGTERM, 1); sp_lock(); /* Get the client socket */ fd = thread->fd; sp_unlock(); /* Sometimes we get to this point and then quit is noted */ if(sp_is_quit() || (ctx = init_thread(fd)) == NULL) { /* Special case. We don't have a context so clean up descriptor */ close(fd); /* new_context() should have already logged reason */ RETURN(-1); } /* call the processor */ processing = 1; ret = smtp_passthru(ctx); cleanup: if(ctx) { /* Let the client know about fatal errors */ if(!processing && ret == -1 && spio_valid(&(ctx->client))) spio_write_data(ctx, &(ctx->client), SMTP_STARTFAILED); done_thread(ctx); } /* mark this as done */ sp_lock(); thread->fd = -1; sp_unlock(); return (void*)(ret == 0 ? 0 : 1); } static int make_connections(spctx_t* ctx, int client) { struct sockaddr_any peeraddr; struct sockaddr_any addr; struct sockaddr_any* outaddr; char buf[MAXPATHLEN]; const char* outname; ASSERT(client != -1); /* Setup the incoming connection. This also fills in peeraddr for us */ spio_attach(ctx, &(ctx->client), client, &peeraddr); sp_messagex(ctx, LOG_INFO, "accepted connection from: %s", ctx->client.peername); /* Create the server connection address */ outaddr = &(g_state.outaddr); outname = g_state.outname; /* For transparent proxying we have to discover the address to connect to */ if(g_state.transparent) { memset(&addr, 0, sizeof(addr)); SANY_LEN(addr) = sizeof(addr); #ifdef LINUX_TRANSPARENT_PROXY if(getsockopt(ctx->client.fd, SOL_IP, SO_ORIGINAL_DST, &SANY_ADDR(addr), &SANY_LEN(addr)) == -1) #else if(getsockname(ctx->client.fd, &SANY_ADDR(addr), &SANY_LEN(addr)) == -1) #endif { sp_message(ctx, LOG_ERR, "couldn't get source address for transparent proxying"); return -1; } /* Check address types */ if(sock_any_cmp(&addr, &peeraddr, SANY_OPT_NOPORT) == 0) { sp_messagex(ctx, LOG_ERR, "loop detected in transparent proxying"); return -1; } outaddr = &addr; } /* Check for loopback option */ else if(SANY_TYPE(*outaddr) == AF_INET && outaddr->s.in.sin_addr.s_addr == 0) { /* Use the incoming IP as the default */ memcpy(&addr, &(g_state.outaddr), sizeof(addr)); memcpy(&(addr.s.in.sin_addr), &(peeraddr.s.in.sin_addr), sizeof(addr.s.in.sin_addr)); outaddr = &addr; } #ifdef HAVE_INET6 /* IPv6 loopback? */ else if(SANY_TYPE(*outaddr) == AF_INET6 && outaddr->s.in.in6.sin_addr.s_addr == 0) { /* Use the incoming IP as the default */ memcpy(&addr, &(g_state.outaddr), sizeof(addr)); memcpy(&(addr.s.in.sin6_addr), &(peeraddr.s.in.sin6_addr), sizeof(addr.s.in.sin6_addr)); outaddr = &addr; } #endif /* Not transparent proxy or loopback */ else { /* Resolve any DNS name again */ if(sock_any_pton(g_state.outname, &addr, SANY_OPT_DEFPORT(25)) != -1) memcpy(&(g_state.outaddr), &addr, sizeof(g_state.outaddr)); else sp_messagex(ctx, LOG_WARNING, "couldn't resolve " CFG_OUTADDR ": %s", g_state.outname); } /* Reparse name if needed */ if(outaddr != &(g_state.outaddr)) { if(sock_any_ntop(outaddr, buf, MAXPATHLEN, 0) != -1) outname = buf; else outname = "unknown"; } /* Connect to the server */ if(spio_connect(ctx, &(ctx->server), outaddr, outname) == -1) return -1; return 0; } /* ---------------------------------------------------------------------------------- * SMTP HANDLING */ static int smtp_passthru(spctx_t* ctx) { char* t; const char* p; int r, cont, ret = 0; unsigned int mask; int neterror = 0; int first_rsp = 1; /* The first 220 response from server to be filtered */ int filter_host = 0; /* Next response is 250 hostname, which we change */ /* XCLIENT is for use in access control */ int xclient_sup = 0; /* Is XCLIENT supported? */ int xclient_sent = 0; /* Have we sent an XCLIENT command? */ ASSERT(spio_valid(&(ctx->client)) && spio_valid(&(ctx->server))); #define C_LINE ctx->client.line #define S_LINE ctx->server.line while(!sp_is_quit()) { mask = spio_select(ctx, &(ctx->client), &(ctx->server), NULL); if(mask == ~0) { neterror = 1; RETURN(-1); } /* Client has data available, read a line and process */ if(mask & 1) { if((r = spio_read_line(ctx, &(ctx->client), SPIO_DISCARD)) == -1) RETURN(-1); /* Client disconnected, we're done */ if(r == 0) RETURN(0); /* We don't let clients send really long lines */ if(LINE_TOO_LONG(r)) { if(spio_write_data(ctx, &(ctx->client), SMTP_TOOLONG) == -1) RETURN(-1); continue; } /* Only valid after EHLO or HELO commands */ filter_host = 0; /* * At this point we may want to send our XCLIENT. This is a per * connection command. */ if(xclient_sup && !xclient_sent && g_state.xclient) { sp_messagex(ctx, LOG_DEBUG, "sending XCLIENT"); if(spio_write_dataf(ctx, &(ctx->server), SMTP_XCLIENT, ctx->client.peername) == -1) RETURN(-1); if(read_server_response(ctx) == -1) RETURN(-1); if(!get_successful_rsp(S_LINE, NULL)) sp_messagex(ctx, LOG_WARNING, "server didn't accept XCLIENT"); xclient_sent = 1; } /* Handle the DATA section via our AV checker */ if(is_first_word(C_LINE, DATA_CMD, KL(DATA_CMD))) { /* Send back the intermediate response to the client */ if(spio_write_data(ctx, &(ctx->client), SMTP_DATAINTERMED) == -1) RETURN(-1); /* * Now go into scan mode. This also handles the eventual * sending of the data to the server, making the av check * transparent */ if(cb_check_data(ctx) == -1) RETURN(-1); /* Print the log out for this email */ sp_messagex(ctx, LOG_INFO, "%s", ctx->logline); /* Done with that email */ cleanup_context(ctx); /* Command handled */ continue; } /* * We need our response to HELO and EHLO to be modified in order * to prevent complaints about mail loops */ else if(is_first_word(C_LINE, EHLO_CMD, KL(EHLO_CMD))) { /* EHLO can have multline responses so we set a flag */ filter_host = 1; } /* * We always support XCLIENT on a HELO type connection. We do this * for security reasons, so that a client can't get around filtering * by backing up one on the protocol. */ else if(is_first_word(C_LINE, HELO_CMD, KL(HELO_CMD))) { sp_messagex(ctx, LOG_DEBUG, "XCLIENT support assumed"); xclient_sup = 1; /* Filter host as with EHLO above */ filter_host = 1; } /* * We don't like these commands. Filter them out. We should have * filtered out their service extensions earlier in the EHLO response. * This is just for errant clients. */ else if(is_first_word(C_LINE, STARTTLS_CMD, KL(STARTTLS_CMD)) || is_first_word(C_LINE, BDAT_CMD, KL(BDAT_CMD))) { sp_messagex(ctx, LOG_DEBUG, "ESMTP feature not supported"); if(spio_write_data(ctx, &(ctx->client), SMTP_NOTSUPP) == -1) RETURN(-1); /* Command handled */ continue; } /* * For security reasons we're not about to forward any XCLIENTs * from our client through. This could lead to a client using our * privileged IP address to change an audit trail or relay etc... */ else if(is_first_word(C_LINE, XCLIENT_CMD, KL(XCLIENT_CMD))) { sp_messagex(ctx, LOG_WARNING, "client attempted use of privileged XCLIENT feature"); if(spio_write_data(ctx, &(ctx->client), SMTP_NOTAUTH) == -1) RETURN(-1); /* Command handled */ continue; } /* All other commands just get passed through to server */ if(spio_write_data(ctx, &(ctx->server), C_LINE) == -1) RETURN(-1); continue; } /* Server has data available, read a line and forward */ if(mask & 2) { if((r = spio_read_line(ctx, &(ctx->server), SPIO_DISCARD)) == -1) RETURN(-1); if(r == 0) RETURN(0); if(LINE_TOO_LONG(r)) sp_messagex(ctx, LOG_WARNING, "SMTP response line too long. discarded extra"); /* * We intercept the first response we get from the server. * This allows us to change header so that it doesn't look * to the client server that we're in a wierd loop. * * In different situations using the local hostname or * 'localhost' don't work because the receiving mail server * expects one of those to be its own name. We use 'clamsmtp' * instead. No properly configured server would have this * as their domain name, and RFC 2821 allows us to use * an arbitrary but identifying string. */ if(first_rsp) { first_rsp = 0; if(is_first_word(S_LINE, START_RSP, KL(START_RSP))) { sp_messagex(ctx, LOG_DEBUG, "intercepting initial response"); if(spio_write_data(ctx, &(ctx->client), SMTP_BANNER) == -1) RETURN(-1); /* Command handled */ continue; } } if((p = get_successful_rsp(S_LINE, &cont)) != NULL) { /* * Certain mail servers (Postfix 1.x in particular) do a loop check * on the 250 response after a EHLO or HELO. This is where we * filter that to prevent loopback errors. */ if(filter_host) { /* Can have multi-line responses, and we want to be * sure to only replace the first one. */ filter_host = 0; sp_messagex(ctx, LOG_DEBUG, "intercepting host response"); if(spio_write_data(ctx, &(ctx->client), cont ? SMTP_EHLO_RSP : SMTP_HELO_RSP) == -1) RETURN(-1); /* A new email so cleanup */ cleanup_context(ctx); continue; } /* * Filter out any EHLO responses that we can't or don't want * to support. For example pipelining or TLS. */ if(is_first_word(C_LINE, EHLO_CMD, KL(EHLO_CMD))) { /* * On ESMTP connections we let the server tell us whether it * wants XCLIENTs or not. (In contrast to old SMTP above). */ if(is_first_word(p, ESMTP_XCLIENT, KL(ESMTP_XCLIENT))) { sp_messagex(ctx, LOG_DEBUG, "XCLIENT supported"); xclient_sup = 1; } if(is_first_word(p, ESMTP_PIPELINE, KL(ESMTP_PIPELINE)) || is_first_word(p, ESMTP_TLS, KL(ESMTP_TLS)) || is_first_word(p, ESMTP_CHUNK, KL(ESMTP_CHUNK)) || is_first_word(p, ESMTP_BINARY, KL(ESMTP_BINARY)) || is_first_word(p, ESMTP_CHECK, KL(ESMTP_CHECK)) || is_first_word(p, ESMTP_XCLIENT, KL(ESMTP_XCLIENT)) || is_first_word(p, ESMTP_XEXCH50, KL(ESMTP_XEXCH50))) { sp_messagex(ctx, LOG_DEBUG, "filtered ESMTP feature: %s", trim_space((char*)p)); /* * If this is the last line in the EHLO response we need * to replace it with something else */ if(!cont) { if(spio_write_data(ctx, &(ctx->client), SMTP_FEAT_RSP) == -1) RETURN(-1); } continue; } } /* MAIL FROM (that the server accepted) */ if((r = check_first_word(C_LINE, FROM_CMD, KL(FROM_CMD), SMTP_DELIMS)) > 0) { t = parse_address(C_LINE + r); sp_add_log(ctx, "from=", t); /* Make note of the sender for later */ ctx->sender = (char*)reallocf(ctx->sender, strlen(t) + 1); if(ctx->sender) strcpy(ctx->sender, t); } /* RCPT TO (that the server accepted) */ else if((r = check_first_word(C_LINE, TO_CMD, KL(TO_CMD), SMTP_DELIMS)) > 0) { t = parse_address(C_LINE + r); sp_add_log(ctx, "to=", t); /* Make note of the recipient for later */ r = ctx->recipients ? strlen(ctx->recipients) : 0; ctx->recipients = (char*)reallocf(ctx->recipients, r + strlen(t) + 2); if(ctx->recipients) { /* Recipients are separated by lines */ if(r != 0) strcat(ctx->recipients, "\n"); else ctx->recipients[0] = 0; strcat(ctx->recipients, t); } } /* * If the client sends an XFORWARD, and the server accepted it, * we store address for use in our forked process environment * variables (see sp_setup_forked). */ else if(is_first_word(C_LINE, XFORWARD_CMD, KL(XFORWARD_CMD))) { if((t = parse_xforward (C_LINE + KL(XFORWARD_CMD), "ADDR"))) { ctx->xforwardaddr = (char*)reallocf(ctx->xforwardaddr, strlen(t) + 1); if(ctx->xforwardaddr) strcpy(ctx->xforwardaddr, t); } if((t = parse_xforward (C_LINE + KL(XFORWARD_CMD), "HELO"))) { ctx->xforwardhelo = (char*)reallocf(ctx->xforwardhelo, strlen(t) + 1); if(ctx->xforwardhelo) strcpy(ctx->xforwardhelo, t); } } /* RSET */ else if(is_first_word(C_LINE, RSET_CMD, KL(RSET_CMD))) { cleanup_context(ctx); } } if(spio_write_data(ctx, &(ctx->client), S_LINE) == -1) RETURN(-1); continue; } } cleanup: if(!neterror && ret == -1 && spio_valid(&(ctx->client))) spio_write_data(ctx, &(ctx->client), SMTP_FAILED); return ret; } /* ----------------------------------------------------------------------------- * SMTP PASSTHRU FUNCTIONS FOR DATA CHECK */ static char* parse_address(char* line) { char* t; line = trim_start(line); /* * We parse out emails in the form of * as well as accept other addresses. */ if(strncmp(line, "<>", 2) == 0) return("<>"); if(line[0] == '<') { if((t = strchr(line, '>')) != NULL) { *t = 0; line++; return line; } } return trim_end(line); } static char* parse_xforward(char* line, const char* part) { char* t; char* e; t = strcasestr(line, part); if(!t) return NULL; /* equals sign and surrounding */ t = trim_start(t + strlen(part)); if(*t != '=') return NULL; t = trim_start(t + 1); if(!*t) return NULL; /* Find the end of the thingy */ if(*t == '[') { t++; e = strchr(t, ']'); } else { e = t + strcspn(t, " \t"); } if(!e) return NULL; *e = 0; return t; } static const char* get_successful_rsp(const char* line, int* cont) { /* * We check for both '250 xxx' type replies * and the continued response '250-xxxx' type */ line = trim_start(line); if(line[0] == '2' && isdigit(line[1]) && isdigit(line[2]) && (line[3] == ' ' || line[3] == '-')) { if(cont) *cont = (line[3] == '-'); return line + 4; } return NULL; } void sp_add_log(spctx_t* ctx, char* prefix, char* line) { char* t = ctx->logline; int l = strlen(t); int x; ASSERT(l <= SP_LOG_LINE_LEN); /* Add up necessary lengths */ x = 2 + strlen(prefix) + strlen(line) + 1; if(l + x >= SP_LOG_LINE_LEN) l = SP_LOG_LINE_LEN - x; t += l; l = SP_LOG_LINE_LEN - l; *t = 0; if(ctx->logline[0] != 0) strlcat(t, ", ", l); strlcat(t, prefix, l); /* Skip initial white space */ line = trim_start(line); strlcat(t, line, l); /* Skip later white space */ trim_end(t); } int sp_read_data(spctx_t* ctx, const char** data) { int r; ASSERT(ctx); ASSERT(data); *data = NULL; switch(r = spio_read_line(ctx, &(ctx->client), SPIO_QUIET)) { case 0: sp_messagex(ctx, LOG_ERR, "unexpected end of data from client"); return -1; case -1: /* Message already printed */ return -1; }; if(g_state.keepalives > 0) { /* * During this time we're just reading from the client. If we haven't * had any interaction with the server recently then send something * to let it know we're still around. */ if((ctx->server.last_action + g_state.keepalives) < time(NULL)) do_server_noop(ctx); } if(ctx->_crlf && strcmp(ctx->client.line, DATA_END_SIG) == 0) return 0; /* Check if this line ended with a CRLF */ ctx->_crlf = (strcmp(CRLF, ctx->client.line + (r - KL(CRLF))) == 0); *data = ctx->client.line; return r; } int sp_write_data(spctx_t* ctx, const char* buf, int len) { int r = 0; ASSERT(ctx); /* When a null buffer close the cache file */ if(!buf) { if(ctx->cachefile) { if(fclose(ctx->cachefile) == EOF) { sp_message(ctx, LOG_ERR, "couldn't write to cache file: %s", ctx->cachename); r = -1; } ctx->cachefile = NULL; } return r; } /* Make sure we have a file open */ if(!ctx->cachefile) { int tfd; /* Make sure afore mentioned file is gone */ if(ctx->cachename[0]) unlink(ctx->cachename); snprintf(ctx->cachename, MAXPATHLEN, "%s/%s.XXXXXX", g_state.directory, g_state.name); if((tfd = mkstemp(ctx->cachename)) == -1 || (ctx->cachefile = fdopen(tfd, "w")) == NULL) { if(tfd != -1) close(tfd); sp_message(ctx, LOG_ERR, "couldn't open cache file"); return -1; } fcntl(tfd, F_SETFD, fcntl(tfd, F_GETFD, 0) | FD_CLOEXEC); sp_messagex(ctx, LOG_DEBUG, "created cache file: %s", ctx->cachename); } fwrite(buf, 1, len, ctx->cachefile); if(ferror(ctx->cachefile)) { sp_message(ctx, LOG_ERR, "couldn't write to cache file: %s", ctx->cachename); return -1; } return len; } int sp_cache_data(spctx_t* ctx) { int r, count = 0; const char* data; while((r = sp_read_data(ctx, &data)) != 0) { if(r < 0) return -1; /* Message already printed */ count += r; if((r = sp_write_data(ctx, data, r)) < 0) return -1; /* Message already printed */ } /* End the caching */ if(sp_write_data(ctx, NULL, 0) < 0) return -1; sp_messagex(ctx, LOG_DEBUG, "wrote %d bytes to cache", count); return count; } /* Important: |date| should be at least MAX_DATE_LENGTH long */ static void make_date(spctx_t* ctx, char* date) { size_t date_len; struct tm t2; time_t t; /* Get a basic date like: 'Wed Jun 30 21:49:08 1993' */ if(time(&t) == (time_t)-1 || !localtime_r(&t, &t2) || !asctime_r(&t2, date)) { sp_message(ctx, LOG_WARNING, "unable to get date for header"); date[0] = 0; return; } trim_end(date); date_len = strlen(date); { #ifdef HAVE_TM_GMTOFF time_t timezone = t2.tm_gmtoff; const char *tzname[2] = { t2.tm_zone, t2.tm_zone }; snprintf(date + date_len, MAX_DATE_LENGTH - date_len, " %+03d%02d (%s)", (int)(timezone / 3600), (int)(timezone % 3600), tzname[t2.tm_isdst ? 1 : 0]); #else /* Apparently Solaris needs this nasty hack.... */ #define DAY_MIN (24 * HOUR_MIN) #define HOUR_MIN 60 #define MIN_SEC 60 struct tm gmt; struct tm *lt; int off; gmt = *gmtime(&t); lt = localtime(&t); off = (lt->tm_hour - gmt.tm_hour) * HOUR_MIN + lt->tm_min - gmt.tm_min; if (lt->tm_year < gmt.tm_year) off -= DAY_MIN; else if (lt->tm_year > gmt.tm_year) off += DAY_MIN; else if (lt->tm_yday < gmt.tm_yday) off -= DAY_MIN; else if (lt->tm_yday > gmt.tm_yday) off += DAY_MIN; if (lt->tm_sec <= gmt.tm_sec - MIN_SEC) off -= 1; else if (lt->tm_sec >= gmt.tm_sec + MIN_SEC) off += 1; snprintf(date + date_len, MAX_DATE_LENGTH - date_len, " %+03d%02d (%s)", (int)(off / HOUR_MIN), (int)(abs(off) % HOUR_MIN), tzname[lt->tm_isdst ? 1 : 0]); #endif } /* Break it off just in case */ date[MAX_DATE_LENGTH - 1] = 0; } /* Important: |header| should be a buffer of MAX_HEADER_LENGTH */ static int make_header(spctx_t* ctx, const char* format_str, char* header) { char date[MAX_DATE_LENGTH]; int remaining, l; const char* f; char* p; date[0] = 0; remaining = MAX_HEADER_LENGTH - 1; p = header; /* Parse the format string and replace special characters with our data */ for(f = format_str; *f && remaining > 0; f++) { /* A backslash escapes certain characters */ if(f[0] == '\\' && f[1] != 0) { switch(*(++f)) { case 'r': *p = '\r'; break; case 'n': *p = '\n'; break; case 't': *p = '\t'; break; default: *p = *f; break; } ++p; --remaining; } /* * Special symbols: * %i: client's IP * %l: server's IP * %d: date */ else if(f[0] == '%' && f[1] != 0) { switch(*(++f)) { case 'i': l = strlen(ctx->client.peername); strncpy(p, ctx->client.peername, remaining); remaining -= l; p += l; break; case 'l': l = strlen(ctx->client.localname); strncpy(p, ctx->client.localname, remaining); remaining -= l; p += l; break; case 'd': if(date[0] == 0) make_date(ctx, date); l = strlen(date); strncpy(p, date, remaining); remaining -= l; p += l; break; case '%': *p = '%'; ++p; break; default: sp_messagex(ctx, LOG_WARNING, "invalid header symbol: %%%c", *f); break; }; } else { *(p++) = *f; remaining--; } } if((p + 1) < (header + MAX_HEADER_LENGTH)) p[1] = 0; header[MAX_HEADER_LENGTH - 1] = 0; l = p - header; return l >= MAX_HEADER_LENGTH ? MAX_HEADER_LENGTH - 1 : l; } int sp_done_data(spctx_t* ctx, const char *headertmpl) { FILE* file = 0; int ret = 0; char *line; char header[MAX_HEADER_LENGTH] = ""; size_t header_len, line_len; int header_prepend = 0; ssize_t rc; ASSERT(ctx->cachename[0]); /* Must still be around */ ASSERT(!ctx->cachefile); /* File must be closed */ memset(header, 0, sizeof(header)); /* Alloc line buffer */ line_len = SP_LINE_LENGTH; if((line = (char *)malloc(line_len)) == NULL) RETURN(-1); /* Open the file */ file = fopen(ctx->cachename, "r"); if(file == NULL) { sp_message(ctx, LOG_ERR, "couldn't open cache file: %s", ctx->cachename); RETURN(-1); } /* Ask the server for permission to send data */ if(spio_write_data(ctx, &(ctx->server), SMTP_DATA) == -1) RETURN(-1); if(read_server_response(ctx) == -1) RETURN(-1); /* If server returns an error then tell the client */ if(!is_first_word(ctx->server.line, DATA_RSP, KL(DATA_RSP))) { if(spio_write_data(ctx, &(ctx->client), ctx->server.line) == -1) RETURN(-1); sp_messagex(ctx, LOG_DEBUG, "server refused data transfer"); RETURN(0); } sp_messagex(ctx, LOG_DEBUG, "sending from cache file: %s", ctx->cachename); if(headertmpl) { header_len = make_header(ctx, headertmpl, header); if(is_first_word(RCVD_HEADER, header, KL(RCVD_HEADER))) header_prepend = 1; } /* If we have to prepend the header, do it */ if(header[0] != '\0' && header_prepend) { if(spio_write_data_raw(ctx, &(ctx->server), (unsigned char*)header, header_len) == -1 || spio_write_data_raw(ctx, &(ctx->server), (unsigned char*)CRLF, KL(CRLF)) == -1) RETURN(-1); header[0] = '\0'; } /* Transfer actual file data */ while((rc = getline(&line, &line_len, file)) != -1) { /* * If the line is . we need to change it so that * it doesn't end the email. We do this by adding a space. * This won't occur much in clamsmtpd, but proxsmtpd might * have filters that accidentally put this in. */ if(strcmp(line, "." CRLF) == 0) strncpy(line, ". " CRLF, SP_LINE_LENGTH); if(header[0] != '\0') { /* * The first blank line we see means the headers are done. * At this point we add in our virus checked header. */ if(is_blank_line(line)) { if(spio_write_data_raw(ctx, &(ctx->server), (unsigned char*)header, header_len) == -1 || spio_write_data_raw(ctx, &(ctx->server), (unsigned char*)CRLF, KL(CRLF)) == -1) RETURN(-1); header[0] = '\0'; } } if(spio_write_data_raw(ctx, &(ctx->server), (unsigned char*)line, rc) == -1) RETURN(-1); } if(ferror(file)) sp_message(ctx, LOG_ERR, "error reading cache file: %s", ctx->cachename); if(ferror(file) || spio_write_data(ctx, &(ctx->server), DATA_END_SIG) == -1) { /* Tell the client it went wrong */ spio_write_data(ctx, &(ctx->client), SMTP_FAILED); RETURN(-1); } sp_messagex(ctx, LOG_DEBUG, "sent email data"); /* Okay read the response from the server and echo it to the client */ if(read_server_response(ctx) == -1) RETURN(-1); if(spio_write_data(ctx, &(ctx->client), ctx->server.line) == -1) RETURN(-1); cleanup: if(line) free(line); if(file) fclose(file); /* read-only so no error check */ return ret; } int sp_fail_data(spctx_t* ctx, const char* smtp_status) { char buf[256 + KL(SMTP_REJPREFIX) + KL(CRLF) + 1]; char* t = NULL; int len, x; int pref = 0; int crlf = 0; if(smtp_status == NULL) smtp_status = SMTP_FAILED; x = strtol(smtp_status, &t, 10); len = strlen(smtp_status); /* We need 3 digits and CRLF at the end for a premade SMTP message */ if(x == 0 || t != smtp_status + 3) pref = 1; /* We need a CRLF at the end */ if(strcmp(smtp_status + (len - KL(CRLF)), CRLF) != 0) crlf = 1; if(pref || crlf) { /* Note that we truncate long lines */ snprintf(buf, sizeof(buf), "%s%.256s%s", pref ? SMTP_REJPREFIX : "", smtp_status, crlf ? CRLF : ""); buf[sizeof(buf) - 1] = 0; smtp_status = buf; } if(spio_write_data(ctx, &(ctx->client), smtp_status) == -1) return -1; /* Tell the server to forget about the current message */ if(spio_write_data(ctx, &(ctx->server), SMTP_RSET) == -1 || read_server_response(ctx) == -1) return -1; return 0; } static int read_server_response(spctx_t* ctx) { int r; /* Read response line from the server */ if((r = spio_read_line(ctx, &(ctx->server), SPIO_DISCARD)) == -1) return -1; if(r == 0) { sp_messagex(ctx, LOG_ERR, "server disconnected unexpectedly"); /* Tell the client it went wrong */ spio_write_data(ctx, &(ctx->client), SMTP_FAILED); return 0; } if(LINE_TOO_LONG(r)) sp_messagex(ctx, LOG_WARNING, "SMTP response line too long. discarded extra"); return 0; } static void do_server_noop(spctx_t* ctx) { if(spio_valid(&(ctx->server))) { if(spio_write_data(ctx, &(ctx->server), SMTP_NOOP) != -1) spio_read_line(ctx, &(ctx->server), SPIO_DISCARD); } } void sp_setup_forked(spctx_t* ctx, int file) { /* Signals we've messed with */ signal(SIGPIPE, SIG_DFL); signal(SIGHUP, SIG_DFL); signal(SIGINT, SIG_DFL); signal(SIGTERM, SIG_DFL); siginterrupt(SIGINT, 0); siginterrupt(SIGTERM, 0); if(ctx->sender) setenv("SENDER", ctx->sender, 1); if(ctx->recipients) setenv("RECIPIENTS", ctx->recipients, 1); if(file && ctx->cachename[0]) setenv("EMAIL", ctx->cachename, 1); if(spio_valid(&(ctx->client))) setenv("CLIENT", ctx->client.peername, 1); if(ctx->xforwardaddr) setenv("REMOTE", ctx->xforwardaddr, 1); if(ctx->xforwardhelo) setenv("REMOTE_HELO", ctx->xforwardhelo, 1); if(spio_valid(&(ctx->server))) setenv("SERVER", ctx->server.peername, 1); setenv("TMPDIR", g_state.directory, 1); } /* ---------------------------------------------------------------------------------- * LOGGING */ const char kMsgDelimiter[] = ": "; #define MAX_MSGLEN 1024 static void vmessage(spctx_t* ctx, int level, int err, const char* msg, va_list ap) { char buf[MAX_MSGLEN]; int e = errno; if(g_state.daemonized) { if(level >= LOG_DEBUG) return; } else { if(g_state.debug_level < level) return; } ASSERT(msg); if(ctx) snprintf(buf, MAX_MSGLEN, "%06X: %s%s", ctx->id, msg, err ? ": " : ""); else snprintf(buf, MAX_MSGLEN, "%s%s", msg, err ? ": " : ""); if(err) { /* strerror_r doesn't want to work for us for some reason len = strlen(buf); strerror_r(e, buf + len, MAX_MSGLEN - len); */ sp_lock(); strncat(buf, strerror(e), MAX_MSGLEN); sp_unlock(); } /* As a precaution */ buf[MAX_MSGLEN - 1] = 0; /* Either to syslog or stderr */ if(g_state.daemonized) vsyslog(level, buf, ap); else vwarnx(buf, ap); } void sp_messagex(spctx_t* ctx, int level, const char* msg, ...) { va_list ap; va_start(ap, msg); vmessage(ctx, level, 0, msg, ap); va_end(ap); } void sp_message(spctx_t* ctx, int level, const char* msg, ...) { va_list ap; va_start(ap, msg); vmessage(ctx, level, 1, msg, ap); va_end(ap); } /* ----------------------------------------------------------------------- * LOCKING */ void sp_lock() { int r; #ifdef _DEBUG int wait = 0; #endif #ifdef _DEBUG r = pthread_mutex_trylock(&g_mutex); if(r == EBUSY) { wait = 1; sp_message(NULL, LOG_DEBUG, "thread will block: %d", pthread_self()); r = pthread_mutex_lock(&g_mutex); } #else r = pthread_mutex_lock(&g_mutex); #endif if(r != 0) { errno = r; sp_message(NULL, LOG_CRIT, "threading problem. couldn't lock mutex"); } #ifdef _DEBUG else if(wait) { sp_message(NULL, LOG_DEBUG, "thread unblocked: %d", pthread_self()); } #endif } void sp_unlock() { int r = pthread_mutex_unlock(&g_mutex); if(r != 0) { errno = r; sp_message(NULL, LOG_CRIT, "threading problem. couldn't unlock mutex"); } } /* ----------------------------------------------------------------------------- * CONFIG FILE */ int sp_parse_option(const char* name, const char* value) { char* t; int ret = 0; if(strcasecmp(CFG_MAXTHREADS, name) == 0) { g_state.max_threads = strtol(value, &t, 10); if(*t || g_state.max_threads <= 1 || g_state.max_threads >= 1024) errx(2, "invalid setting: " CFG_MAXTHREADS " (must be between 1 and 1024)"); ret = 1; } else if(strcasecmp(CFG_TIMEOUT, name) == 0) { g_state.timeout.tv_sec = strtol(value, &t, 10); if(*t || g_state.timeout.tv_sec <= 0) errx(2, "invalid setting: " CFG_TIMEOUT); ret = 1; } else if(strcasecmp(CFG_KEEPALIVES, name) == 0) { g_state.keepalives = strtol(value, &t, 10); if(*t || g_state.keepalives < 0) errx(2, "invalid setting: " CFG_KEEPALIVES); ret = 1; } else if(strcasecmp(CFG_XCLIENT, name) == 0) { if((g_state.xclient = strtob(value)) == -1) errx(2, "invalid value for " CFG_XCLIENT); ret = 1; } else if(strcasecmp(CFG_OUTADDR, name) == 0) { if(sock_any_pton(value, &(g_state.outaddr), SANY_OPT_DEFPORT(25)) == -1) errx(2, "invalid " CFG_OUTADDR " socket name or ip: %s", value); g_state.outname = value; ret = 1; } else if(strcasecmp(CFG_LISTENADDR, name) == 0) { if(sock_any_pton(value, &(g_state.listenaddr), SANY_OPT_DEFANY | SANY_OPT_DEFPORT(DEFAULT_PORT)) == -1) errx(2, "invalid " CFG_LISTENADDR " socket name or ip: %s", value); g_state.listenname = value; ret = 1; } else if(strcasecmp(CFG_TRANSPARENT, name) == 0) { if((g_state.transparent = strtob(value)) == -1) errx(2, "invalid value for " CFG_TRANSPARENT); ret = 1; } else if(strcasecmp(CFG_DIRECTORY, name) == 0) { if(strlen(value) == 0) errx(2, "invalid setting: " CFG_DIRECTORY); g_state.directory = value; ret = 1; } else if(strcasecmp(CFG_USER, name) == 0) { if(strlen(value) == 0) errx(2, "invalid setting: " CFG_USER); g_state.user = value; ret = 1; } else if(strcasecmp(CFG_PIDFILE, name) == 0) { if(g_state.pidfile != NULL) sp_messagex(NULL, LOG_WARNING, "ignoring pid file specified on the command line. "); if(strlen(value) == 0) g_state.pidfile = NULL; else g_state.pidfile = value; ret = 1; } /* Always pass through to program */ if(cb_parse_option(name, value) == 1) ret = 1; return ret; } static int parse_config_file(const char* configfile) { FILE* f = NULL; long len; char* p; char* t; char* n; ASSERT(configfile); ASSERT(!g_state._p); f = fopen(configfile, "r"); if(f == NULL) { /* Soft errors when default config file and not found */ if((errno == ENOENT || errno == ENOTDIR)) return -1; else err(1, "couldn't open config file: %s", configfile); } /* Figure out size */ if(fseek(f, 0, SEEK_END) == -1 || (len = ftell(f)) == -1 || fseek(f, 0, SEEK_SET) == -1) err(1, "couldn't seek config file: %s", configfile); if((g_state._p = (char*)malloc(len + 2)) == NULL) errx(1, "out of memory"); /* And read in one block */ if(fread(g_state._p, 1, len, f) != len) err(1, "couldn't read config file: %s", configfile); fclose(f); sp_messagex(NULL, LOG_DEBUG, "read config file: %s", configfile); /* Double null terminate the data */ p = g_state._p; p[len] = '\n'; p[len + 1] = 0; n = g_state._p; /* Go through lines and process them */ while((t = strchr(n, '\n')) != NULL) { *t = 0; p = n; /* Do this before cleaning below */ n = t + 1; p = trim_start(p); /* Comments and empty lines */ if(*p == 0 || *p == '#') continue; /* Look for the break between name: value */ t = strchr(p, ':'); if(t == NULL) errx(2, "invalid config line: %s", p); /* Null terminate and split value part */ *t = 0; t++; t = trim_space(t); p = trim_space(p); /* Pass it through our options parsers */ if(sp_parse_option(p, t) == 0) /* If not recognized then it's invalid */ errx(2, "invalid config line: %s", p); sp_messagex(NULL, LOG_DEBUG, "parsed option: %s: %s", p, t); } return 0; } clamsmtp-1.10/common/.svn/text-base/spio.c.svn-base0000444000175000017500000004101210634000374017070 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter */ /* * select() and stdio are basically mutually exclusive. * Hence all of this code to try to get some buffering * along with select IO multiplexing. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "compat.h" #include "usuals.h" #include "sock_any.h" #include "stringx.h" #include "sppriv.h" #define MAX_LOG_LINE 79 #define GET_IO_NAME(io) ((io)->name ? (io)->name : "??? ") #define HAS_EXTRA(io) ((io)->_ln > 0) static void close_raw(int* fd) { ASSERT(fd); shutdown(*fd, SHUT_RDWR); close(*fd); *fd = -1; } static void log_io_data(spctx_t* ctx, spio_t* io, const char* data, int read) { char buf[MAX_LOG_LINE + 1]; int pos, len; ASSERT(ctx && io && data); for(;;) { data += strspn(data, "\r\n"); if(!*data) break; pos = strcspn(data, "\r\n"); len = pos < MAX_LOG_LINE ? pos : MAX_LOG_LINE; memcpy(buf, data, len); buf[len] = 0; sp_messagex(ctx, LOG_DEBUG, "%s%s%s", GET_IO_NAME(io), read ? " < " : " > ", buf); data += pos; } } void spio_init(spio_t* io, const char* name) { ASSERT(io && name); memset(io, 0, sizeof(*io)); io->name = name; io->fd = -1; } void spio_attach(spctx_t* ctx, spio_t* io, int fd, struct sockaddr_any* peer) { struct sockaddr_any peeraddr; struct sockaddr_any locaddr; io->fd = fd; /* Get the address on which we accepted the connection */ memset(&locaddr, 0, sizeof(locaddr)); SANY_LEN(locaddr) = sizeof(locaddr); if(getsockname(fd, &SANY_ADDR(locaddr), &SANY_LEN(locaddr)) == -1 || sock_any_ntop(&locaddr, io->localname, MAXPATHLEN, SANY_OPT_NOPORT) == -1) { if (errno != EAFNOSUPPORT) sp_message(ctx, LOG_WARNING, "%s: couldn't get socket address", GET_IO_NAME(io)); strlcpy(io->localname, "UNKNOWN", MAXPATHLEN); } /* If the caller doesn't want the peer then use our own */ if (peer == NULL) peer = &peeraddr; memset(peer, 0, sizeof(*peer)); SANY_LEN(*peer) = sizeof(*peer); if(getpeername(fd, &SANY_ADDR(*peer), &SANY_LEN(*peer)) == -1 || sock_any_ntop(peer, io->peername, MAXPATHLEN, SANY_OPT_NOPORT) == -1) { if (errno != EAFNOSUPPORT) sp_message(ctx, LOG_WARNING, "%s: couldn't get peer address", GET_IO_NAME(io)); strlcpy(io->peername, "UNKNOWN", MAXPATHLEN); } /* As a double check */ io->line[0] = 0; io->_nx = NULL; io->_ln = 0; } int spio_connect(spctx_t* ctx, spio_t* io, const struct sockaddr_any* sany, const char* addrname) { int ret = 0; int fd; ASSERT(ctx && io && sany && addrname); ASSERT(io->fd == -1); if((fd = socket(SANY_TYPE(*sany), SOCK_STREAM, 0)) == -1) RETURN(-1); if(setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &(g_state.timeout), sizeof(g_state.timeout)) == -1 || setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &(g_state.timeout), sizeof(g_state.timeout)) == -1) sp_messagex(ctx, LOG_DEBUG, "%s: couldn't set timeouts on connection", GET_IO_NAME(io)); fcntl(fd, F_SETFD, fcntl(fd, F_GETFD, 0) | FD_CLOEXEC); if(connect(fd, &SANY_ADDR(*sany), SANY_LEN(*sany)) == -1) { close_raw(&fd); RETURN(-1); } spio_attach(ctx, io, fd, NULL); cleanup: if(ret < 0) { if(spio_valid(io)) close_raw(&(io->fd)); sp_message(ctx, LOG_ERR, "%s: couldn't connect to: %s", GET_IO_NAME(io), addrname); return -1; } ASSERT(io->fd != -1); sp_messagex(ctx, LOG_DEBUG, "%s connected to: %s", GET_IO_NAME(io), io->peername); return 0; } void spio_disconnect(spctx_t* ctx, spio_t* io) { ASSERT(ctx && io); if(spio_valid(io)) { close_raw(&(io->fd)); sp_messagex(ctx, LOG_DEBUG, "%s connection closed", GET_IO_NAME(io)); } } unsigned int spio_select(spctx_t* ctx, ...) { fd_set mask; spio_t* io; int ret = 0; int have = 0; int i = 0; va_list ap; struct timeval timeout; ASSERT(ctx); FD_ZERO(&mask); va_start(ap, ctx); while((io = va_arg(ap, spio_t*)) != NULL) { if(spio_valid(io)) { /* We can't handle more than 31 args */ if(i > (sizeof(int) * 8) - 2) break; /* Check if the buffer has something in it */ if(HAS_EXTRA(io)) ret |= (1 << i); /* Mark for select */ FD_SET(io->fd, &mask); have = 1; } i++; } va_end(ap); /* If any buffers had something present, then return */ if(ret != 0) return ret; /* No valid file descriptors */ if(!have) return ~0; for(;;) { /* Select can modify the timeout argument so we copy */ memcpy(&timeout, &(g_state.timeout), sizeof(timeout)); /* Otherwise wait on more data */ switch(select(FD_SETSIZE, &mask, NULL, NULL, &timeout)) { case 0: sp_messagex(ctx, LOG_ERR, "network operation timed out"); return ~0; case -1: if(errno == EINTR) { if(!sp_is_quit()) continue; } else sp_message(ctx, LOG_ERR, "couldn't select on sockets"); return ~0; }; break; } /* See what came in */ i = 0; va_start(ap, ctx); while((io = va_arg(ap, spio_t*)) != NULL) { if(spio_valid(io)) { /* We can't handle more than 31 args */ if(i > (sizeof(int) * 8) - 2) break; /* We have data on the descriptor, which is an action */ io->last_action = time(NULL); /* Check if the buffer has something in it */ if(FD_ISSET(io->fd, &mask)) ret |= (1 << i); } i++; } va_end(ap); return ret; } int read_raw(spctx_t* ctx, spio_t* io, int opts) { int len, x, count; char* at; char* p; /* * Just a refresher: * * _nx: Extra data read on last read. * _ln: Length of that extra data. * * _nx should never be equal to line when entering this function. * And _ln should always be less than a full buffer. */ count = 0; io->line[0] = 0; /* Remaining data in the buffer */ if(io->_nx && io->_ln > 0) { ASSERT(!io->_nx || io->_nx > io->line); ASSERT(io->_ln < SP_LINE_LENGTH); ASSERT(io->_nx + io->_ln <= io->line + SP_LINE_LENGTH); /* Check for a return in the current buffer */ if((p = (char*)memchr(io->_nx, '\n', io->_ln)) != NULL) { /* Move data to front */ x = (p - io->_nx) + 1; ASSERT(x > 0); memmove(io->line, io->_nx, x); /* Null teriminate it */ io->line[x] = 0; /* Do maintanence for next time around */ io->_ln -= x; io->_nx += x; /* A double check on the return value */ count += x; return count; } /* Otherwise move all old data to front */ memmove(io->line, io->_nx, io->_ln); count += io->_ln; /* We always leave space for a null terminator */ len = (SP_LINE_LENGTH - io->_ln) - 1; at = io->line + io->_ln; } /* No data at front just read straight in */ else { /* We always leave space for a null terminator */ len = SP_LINE_LENGTH - 1; at = io->line; } for(;;) { /* Read a block of data */ ASSERT(io->fd != -1); x = read(io->fd, at, sizeof(char) * len); if(x == -1) { if(errno == EINTR) { /* When the application is quiting */ if(sp_is_quit()) return -1; /* For any other signal we go again */ continue; } if(errno == ECONNRESET) /* Not usually a big deal so supresse the error */ sp_messagex(ctx, LOG_DEBUG, "%s: connection disconnected by peer", GET_IO_NAME(io)); else if(errno == EAGAIN) sp_messagex(ctx, LOG_WARNING, "%s: network read operation timed out", GET_IO_NAME(io)); else sp_message(ctx, LOG_ERR, "%s: couldn't read data from socket", GET_IO_NAME(io)); /* * The basic logic here is that if we've had a fatal error * reading from the socket once then we shut it down as it's * no good trying to read from again later. */ close_raw(&(io->fd)); return -1; } /* End of data */ else if(x == 0) { /* Maintenance for remaining data */ io->_nx = NULL; io->_ln = 0; return count; } /* Read data which is a descriptor action */ io->last_action = time(NULL); /* Check for a new line */ p = (char*)memchr(at, '\n', x); if(p != NULL) { p++; count += (p - at); /* Insert the null terminator */ len = x - (p - at); memmove(p + 1, p, len); *p = 0; /* Do maintenence for remaining data */ io->_nx = p + 1; io->_ln = len; return count; } /* Move the buffer pointer along */ at += x; len -= x; count += x; if(len <= 0) { /* Keep reading until we hit a new line */ if(opts & SPIO_DISCARD) { /* * K, basically the logic is that we're discarding * data and the data will be screwed up. So overwriting * some valid data in order to flush the line and * keep the buffering simple is a price we pay gladly :) */ ASSERT(128 < SP_LINE_LENGTH); at = (io->line + SP_LINE_LENGTH) - 128; len = 128; /* Go for next read */ continue; } io->_nx = NULL; io->_ln = 0; /* Null terminate */ io->line[SP_LINE_LENGTH] = 0; /* A double check on the return value */ return count; } } } int spio_read_line(spctx_t* ctx, spio_t* io, int opts) { int x, l; char* t; ASSERT(ctx && io); if(!spio_valid(io)) { sp_messagex(ctx, LOG_WARNING, "%s: tried to read from a closed connection", GET_IO_NAME(io)); return 0; } x = read_raw(ctx, io, opts); if(x > 0) { if(opts & SPIO_TRIM) { t = io->line; while(*t && isspace(*t)) t++; /* Bump the entire line down */ l = t - io->line; memmove(io->line, t, (x + 1) - l); x -= l; /* Now the end */ t = io->line + x; while(t > io->line && isspace(*(t - 1))) { *(--t) = 0; x--; } } if(!(opts & SPIO_QUIET)) log_io_data(ctx, io, io->line, 1); } return x; } int spio_write_data(spctx_t* ctx, spio_t* io, const char* data) { int len = strlen(data); ASSERT(ctx && io && data); if(!spio_valid(io)) { sp_message(ctx, LOG_ERR, "%s: connection closed. can't write data", GET_IO_NAME(io)); return -1; } log_io_data(ctx, io, data, 0); return spio_write_data_raw(ctx, io, (unsigned char*)data, len); } int spio_write_dataf(struct spctx* ctx, spio_t* io, const char* fmt, ...) { char buf[SP_LINE_LENGTH]; va_list ap; ASSERT(ctx && io && fmt); buf[0] = 0; va_start(ap, fmt); vsnprintf(buf, SP_LINE_LENGTH, fmt, ap); va_end(ap); buf[SP_LINE_LENGTH - 1] = 0; return spio_write_data(ctx, io, buf); } int spio_write_data_raw(spctx_t* ctx, spio_t* io, const unsigned char* buf, int len) { int r; ASSERT(ctx && io && buf); if(io->fd == -1) return 0; io->last_action = time(NULL); while(len > 0) { r = write(io->fd, buf, len); if(r > 0) { buf += r; len -= r; } else if(r == -1) { if(errno == EINTR) { /* When the application is quiting */ if(sp_is_quit()) return -1; /* For any other signal we go again */ continue; } /* * The basic logic here is that if we've had a fatal error * writing to the socket once then we shut it down as it's * no good trying to write to it again later. */ close_raw(&(io->fd)); if(errno == EAGAIN) sp_messagex(ctx, LOG_WARNING, "%s: network write operation timed out", GET_IO_NAME(io)); else sp_message(ctx, LOG_ERR, "%s: couldn't write data to socket", GET_IO_NAME(io)); return -1; } } return 0; } void spio_read_junk(spctx_t* ctx, spio_t* io) { char buf[16]; const char* t; int said = 0; int l; ASSERT(ctx); ASSERT(io); /* Truncate any data in buffer */ io->_ln = 0; io->_nx = 0; if(!spio_valid(io)) return; /* Make it non blocking */ fcntl(io->fd, F_SETFL, fcntl(io->fd, F_GETFL, 0) | O_NONBLOCK); for(;;) { l = read(io->fd, buf, sizeof(buf) - 1); if(l <= 0) break; io->last_action = time(NULL); buf[l] = 0; t = trim_start(buf); if(!said && *t) { sp_messagex(ctx, LOG_DEBUG, "%s: received junk data from daemon", GET_IO_NAME(io)); said = 1; } } fcntl(io->fd, F_SETFL, fcntl(io->fd, F_GETFL, 0) & ~O_NONBLOCK); } clamsmtp-1.10/common/.svn/text-base/sock_any.h.svn-base0000444000175000017500000000564110634000374017741 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef __SOCK_ANY_H__ #define __SOCK_ANY_H__ #include #include #include struct sockaddr_any { union _sockaddr_any { /* The header */ struct sockaddr a; /* The different types */ struct sockaddr_un un; struct sockaddr_in in; #ifdef HAVE_INET6 struct sockaddr_in6 in6; #endif } s; size_t namelen; }; #define SANY_ADDR(any) ((any).s.a) #define SANY_LEN(any) ((any).namelen) #define SANY_TYPE(any) ((any).s.a.sa_family) int sock_any_pton(const char* addr, struct sockaddr_any* any, int opts); /* The default port to fill in when no IP/IPv6 port specified */ #define SANY_OPT_DEFPORT(p) (int)((p) & 0xFFFF) /* When only port specified default to IPANY */ #define SANY_OPT_DEFANY 0x00000000 /* When only port specified default to LOCALHOST */ #define SANY_OPT_DEFLOCAL 0x00100000 /* When only port specified default to IPv6 */ #ifdef HAVE_INET6 #define SANY_OPT_DEFINET6 0x00200000 #endif int sock_any_ntop(const struct sockaddr_any* any, char* addr, size_t addrlen, int opts); /* Don't print or compare the port */ #define SANY_OPT_NOPORT 0x01000000 int sock_any_cmp(const struct sockaddr_any* a1, const struct sockaddr_any* a2, int opts); #endif /* __SOCK_ANY_H__ */ clamsmtp-1.10/common/.svn/prop-base/0000777000175000017500000000000010577653532014341 500000000000000clamsmtp-1.10/common/.svn/prop-base/stringx.c.svn-base0000444000175000017500000000012110634000374017604 00000000000000K 13 svn:eol-style V 6 native K 12 svn:keywords V 23 Author Date Id Revision END clamsmtp-1.10/common/.svn/prop-base/smtppass.h.svn-base0000444000175000017500000000012111032210553017760 00000000000000K 13 svn:eol-style V 6 native K 12 svn:keywords V 23 Author Date Id Revision END clamsmtp-1.10/common/.svn/prop-base/usuals.h.svn-base0000444000175000017500000000012110634000374017427 00000000000000K 13 svn:eol-style V 6 native K 12 svn:keywords V 23 Author Date Id Revision END clamsmtp-1.10/common/.svn/prop-base/compat.c.svn-base0000444000175000017500000000012110634000374017371 00000000000000K 13 svn:eol-style V 6 native K 12 svn:keywords V 23 Author Date Id Revision END clamsmtp-1.10/common/.svn/prop-base/stringx.h.svn-base0000444000175000017500000000012110634000374017611 00000000000000K 13 svn:eol-style V 6 native K 12 svn:keywords V 23 Author Date Id Revision END clamsmtp-1.10/common/.svn/prop-base/sock_any.c.svn-base0000444000175000017500000000012110634000374017714 00000000000000K 13 svn:eol-style V 6 native K 12 svn:keywords V 23 Author Date Id Revision END clamsmtp-1.10/common/.svn/prop-base/compat.h.svn-base0000444000175000017500000000012110634000374017376 00000000000000K 13 svn:eol-style V 6 native K 12 svn:keywords V 23 Author Date Id Revision END clamsmtp-1.10/common/.svn/prop-base/sppriv.h.svn-base0000444000175000017500000000012110634000374017436 00000000000000K 13 svn:eol-style V 6 native K 12 svn:keywords V 23 Author Date Id Revision END clamsmtp-1.10/common/.svn/prop-base/smtppass.c.svn-base0000444000175000017500000000012111032210553017753 00000000000000K 13 svn:eol-style V 6 native K 12 svn:keywords V 23 Author Date Id Revision END clamsmtp-1.10/common/.svn/prop-base/spio.c.svn-base0000444000175000017500000000012110634000374017060 00000000000000K 13 svn:eol-style V 6 native K 12 svn:keywords V 23 Author Date Id Revision END clamsmtp-1.10/common/.svn/prop-base/sock_any.h.svn-base0000444000175000017500000000012110634000374017721 00000000000000K 13 svn:eol-style V 6 native K 12 svn:keywords V 23 Author Date Id Revision END clamsmtp-1.10/common/.svn/props/0000777000175000017500000000000010577653531013613 500000000000000clamsmtp-1.10/common/.svn/tmp/0000777000175000017500000000000011032211505013222 500000000000000clamsmtp-1.10/common/.svn/tmp/text-base/0000777000175000017500000000000011032210553015120 500000000000000clamsmtp-1.10/common/.svn/tmp/prop-base/0000777000175000017500000000000011032210553015114 500000000000000clamsmtp-1.10/common/.svn/tmp/props/0000777000175000017500000000000010577653531014413 500000000000000clamsmtp-1.10/common/.svn/tmp/tempfile.2.tmp0000644000175000017500000001006410634000374015635 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #include #include #include #include #include #include #include "usuals.h" #include "compat.h" #include "stringx.h" /* ---------------------------------------------------------------------------------- * Parsing */ int is_first_word(const char* line, const char* word, int len) { ASSERT(line); ASSERT(word); ASSERT(len > 0); while(*line && isspace(*line)) line++; if(strncasecmp(line, word, len) != 0) return 0; line += len; return !*line || isspace(*line); } int check_first_word(const char* line, const char* word, int len, char* delims) { const char* t; int found = 0; ASSERT(line); ASSERT(word); ASSERT(len > 0); t = line; while(*t && strchr(delims, *t)) t++; if(strncasecmp(t, word, len) != 0) return 0; t += len; while(*t && strchr(delims, *t)) { found = 1; t++; } return (!*t || found) ? t - line : 0; } int is_last_word(const char* line, const char* word, int len) { const char* t; ASSERT(line); ASSERT(word); ASSERT(len > 0); t = line + strlen(line); while(t > line && isspace(*(t - 1))) --t; if(t - len < line) return 0; return strncasecmp(t - len, word, len) == 0; } int is_blank_line(const char* line) { /* Small optimization */ if(!*line) return 1; while(*line && isspace(*line)) line++; return *line == 0; } char* trim_start(const char* data) { while(*data && isspace(*data)) ++data; return (char*)data; } char* trim_end(char* data) { char* t = data + strlen(data); while(t > data && isspace(*(t - 1))) { t--; *t = 0; } return data; } char* trim_space(char* data) { data = (char*)trim_start(data); return trim_end(data); } /* String to bool helper function */ int strtob(const char* str) { if(strcasecmp(str, "0") == 0 || strcasecmp(str, "no") == 0 || strcasecmp(str, "false") == 0 || strcasecmp(str, "f") == 0 || strcasecmp(str, "off") == 0) return 0; if(strcasecmp(str, "1") == 0 || strcasecmp(str, "yes") == 0 || strcasecmp(str, "true") == 0 || strcasecmp(str, "t") == 0 || strcasecmp(str, "on") == 0) return 1; return -1; } clamsmtp-1.10/common/.svn/tmp/tempfile.3.tmp0000644000175000017500000002203710634000374015641 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef __SMTPPASS_H__ #define __SMTPPASS_H__ /* Forward declarations */ struct sockaddr_any; struct spctx; /* ----------------------------------------------------------------------------- * BUFFERED MULTIPLEXING IO * * This isn't meant to be a replacement library for all sorts of IO * only things that are currently used go here. */ /* * A generous maximum line length. It needs to be longer than * a full path on this system can be, because we pass the file * name to clamd. */ #if 2000 > MAXPATHLEN #define SP_LINE_LENGTH 2000 #else #define SP_LINE_LENGTH (MAXPATHLEN + 128) #endif typedef struct spio { int fd; /* The file descriptor wrapped */ const char* name; /* The name for logging */ time_t last_action; /* Time of last action on descriptor */ char peername[MAXPATHLEN]; /* Name of the peer on other side of socket */ char localname[MAXPATHLEN]; /* Address where we accepted the connection */ /* Internal use only */ char line[SP_LINE_LENGTH]; char* _nx; size_t _ln; } spio_t; #define spio_valid(io) ((io) && (io)->fd != -1) /* Setup the io structure (allocated elsewhere) */ void spio_init(spio_t* io, const char* name); /* Attach an open descriptor to a socket, optionally returning the peer */ void spio_attach(struct spctx* ctx, spio_t* io, int fd, struct sockaddr_any* peer); /* Connect and disconnect from sockets */ int spio_connect(struct spctx* ctx, spio_t* io, const struct sockaddr_any* sany, const char* addrname); void spio_disconnect(struct spctx* ctx, spio_t* io); #define SPIO_TRIM 0x00000001 #define SPIO_DISCARD 0x00000002 #define SPIO_QUIET 0x00000004 /* Read a line from a socket. Use options above. Line * will be found in io->line */ int spio_read_line(struct spctx* ctx, spio_t* io, int opts); /* Write data to socket (must supply line endings if needed). * Guaranteed to accept all data or fail. */ int spio_write_data(struct spctx* ctx, spio_t* io, const char* data); int spio_write_dataf(struct spctx* ctx, spio_t* io, const char* fmt, ...); int spio_write_data_raw(struct spctx* ctx, spio_t* io, const unsigned char* buf, int len); /* Empty the given socket */ void spio_read_junk(struct spctx* sp, spio_t* io); /* Pass up to 31 spio_t*, followed by NULL. Returns bitmap of ready for reading */ unsigned int spio_select(struct spctx* ctx, ...); /* ----------------------------------------------------------------------------- * SMTP PASS THROUGH FUNCTIONALITY */ /* Log lines have to be under roughly 900 chars otherwise * they get truncated by syslog. */ #define SP_LOG_LINE_LEN 768 typedef struct spctx { unsigned int id; /* Identifier for the connection */ spio_t client; /* Connection to client */ spio_t server; /* Connection to server */ FILE* cachefile; /* The file handle for the cached file */ char cachename[MAXPATHLEN]; /* The name of the file that we cache into */ char logline[SP_LOG_LINE_LEN]; /* Log line */ char* sender; /* The email of the sender */ char* recipients; /* The email of the recipients */ char* xforwardaddr; /* The IP address proxied for */ int _crlf; /* Private data */ } spctx_t; /* * sp_init initializes the SMTP Pass-Through functionality * The name passed is the name of the app */ void sp_init(const char* name); /* * This starts up the smtp pass thru program. It will call * the cb_* functions as appropriate. */ int sp_run(const char* configfile, const char* pidfile, int dbg_level); /* * Mark the application as shutting down. * A signal will interupt most IO. */ void sp_quit(); /* * Check if the application has been marked to quit. * Useful for checking after interupted IO. */ int sp_is_quit(); /* * Called to cleanup SMTP Pass-Through functionality just * before the application quits. */ void sp_done(); /* * clamsmtpd used to accept command line args. In order to * process those args it needs to send the values to the * config file routines. This is how it does that. */ #ifdef SP_LEGACY_OPTIONS int sp_parse_option(const char* name, const char* option); #endif /* * The following functions are to be called from within * the spc_check_data function. */ /* * Adds a piece of info to the log line */ void sp_add_log(spctx_t* ctx, char* prefix, char* line); /* * Reads a line of DATA from client. Or less than a line if * line is longer than LINE_LENGTH. No trimming or anything * is done on the read line. This will end automatically * when . is detected (in which case 0 will * be returned). The data is returned in data. */ int sp_read_data(spctx_t* ctx, const char** data); /* * Writes a line (or piece) of data to a file buffer which is * later sent to the client using sp_done_data. Calling it with * a NULL buffer closes the cache file. Guaranteed to accept * all data given to it or fail. */ int sp_write_data(spctx_t* ctx, const char* buf, int buflen); /* * Sends all DATA from the client into the cache. The cache * file is then available (in spctx_t->cachename) for use. */ int sp_cache_data(spctx_t* ctx); /* * Sends the data in file buffer off to server. This is * completes a successful mail transfer. */ int sp_done_data(spctx_t* ctx, const char *header); /* * Fails the data, deletes any temp data, and sends given * status to client or if NULL then SMTP_DATAFAILED */ int sp_fail_data(spctx_t* ctx, const char* smtp_status); /* * Setup the environment with context info. This is useful * if you're going to fork another process. Be sure to exec * soon after to prevent the strings from going out of scope. */ void sp_setup_forked(spctx_t* ctx, int file); /* * Log a message. levels are syslog levels. Syntax is just * like printf etc.. Can specify a ctx of NULL in which case * no connection prefix is prepended. */ void sp_message(spctx_t* ctx, int level, const char* msg, ...); void sp_messagex(spctx_t* ctx, int level, const char* msg, ...); /* * Lock or unlock the main mutex around thread common * functionality. */ void sp_lock(); void sp_unlock(); /* ----------------------------------------------------------------------------- * CALLBACKS IMPLMEMENTED BY PROGRAM */ /* * The following functions create and destroy contexts for a new * thread. Perform initialization in there and return a spctx * structure for the thread to use. Return NULL failed. Be sure * to log message. */ extern spctx_t* cb_new_context(); extern void cb_del_context(spctx_t* ctx); /* * Called when the data section of an email is being transferred. * Once inside this function you can transfer files using * sp_read_data, sp_write_data. * * After scanning or figuring out the status call either * sp_done_data or sp_fail_data. Most failures should be handled * internally using sp_fail_data, unless it's an out of memory * condition, or sp_fail_data failed. */ extern int cb_check_data(spctx_t* ctx); /* * Parse options from the config file. The memory for these * options will stay around until sp_done is called. Return 0 * for unrecognized options, 1 for recognized, and quit the * program for invalid. */ extern int cb_parse_option(const char* name, const char* value); #endif /* __SMTPPASS_H__ */ clamsmtp-1.10/common/.svn/tmp/tempfile.4.tmp0000644000175000017500000000443310634000374015642 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef __USUALS_H__ #define __USUALS_H__ #include #include "config.h" #include #include #include #include #include "compat.h" #ifndef NULL #define NULL 0 #endif #ifndef max #define max(a,b) (((a) > (b)) ? (a) : (b)) #endif #ifndef min #define min(a,b) (((a) < (b)) ? (a) : (b)) #endif #define countof(x) (sizeof(x) / sizeof(x[0])) #ifdef _DEBUG #include "assert.h" #define ASSERT(x) assert(x) #else #define ASSERT(x) #endif #define KL(s) ((sizeof(s) - 1) / sizeof(char)) #define RETURN(x) { ret = (x); goto cleanup; } #endif /* __USUALS_H__ */ clamsmtp-1.10/common/.svn/tmp/tempfile.5.tmp0000644000175000017500000002743210634000374015647 00000000000000/* * Copyright (c) 2004-2005, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * * * PORTIONS FROM OPENBSD: ------------------------------------------------- * * Copyright (c) 1998 Todd C. Miller * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "usuals.h" #include "compat.h" #include #include #ifndef HAVE_REALLOCF void* reallocf(void* ptr, size_t size) { void* ret = realloc(ptr, size); if(!ret && size) free(ptr); return ret; } #endif #ifndef HAVE_STRLWR char* strlwr(char* s) { char* t = s; while(*t) { *t = tolower(*t); t++; } return s; } #endif #ifndef HAVE_STRUPR char* strupr(char* s) { char* t = s; while(*t) { *t = toupper(*t); t++; } return s; } #endif #ifndef HAVE_STRLCPY size_t strlcpy(char* dst, const char* src, size_t siz) { char* d = dst; const char* s = src; size_t n = siz; /* Copy as many bytes as will fit */ if(n != 0 && --n != 0) { do { if((*d++ = *s++) == 0) break; } while(--n != 0); } /* Not enough room in dst, add NUL and traverse rest of src */ if(n == 0) { if(siz != 0) *d = '\0'; /* NUL-terminate dst */ while (*s++) ; } return s - src - 1; /* count does not include NUL */ } #endif #ifndef HAVE_STRLCAT size_t strlcat(char* dst, const char* src, size_t siz) { char* d = dst; const char* s = src; size_t n = siz; size_t dlen; /* Find the end of dst and adjust bytes left but don't go past end */ while(n-- != 0 && *d != '\0') d++; dlen = d - dst; n = siz - dlen; if(n == 0) return dlen + strlen(s); while(*s != '\0') { if(n != 1) { *d++ = *s; n--; } s++; } *d = '\0'; return dlen + (s - src); /* count does not include NUL */ } #endif #ifndef HAVE_STRCASESTR const char* strcasestr(const char *s, const char *find) { char c, sc; size_t len; if((c = *find++) != 0) { c = tolower((unsigned char)c); len = strlen(find); do { do { if((sc = *s++) == 0) return (NULL); } while((char)tolower((unsigned char)sc) != c); } while (strncasecmp(s, find, len) != 0); s--; } return((const char*)s); } #endif #ifndef HAVE_SETENV #include int setenv(const char* name, const char* value, int overwrite) { char* t; int r; if(getenv(name) && !overwrite) return 0; t = (char*)malloc((strlen(name) + strlen(value) + 2) * sizeof(char)); if(!t) return -1; sprintf(t, "%s=%s", name, value); r = putenv(t); if(r != 0) free(t); return r; } #endif #ifndef HAVE_DAEMON #include #include #include #include #include int daemon(int nochdir, int noclose) { struct sigaction osa, sa; int oerrno, fd, osa_ok; pid_t newgrp; /* A SIGHUP may be thrown when the parent exits below. */ sigemptyset(&sa.sa_mask); sa.sa_handler = SIG_IGN; sa.sa_flags = 0; osa_ok = sigaction(SIGHUP, &sa, &osa); switch(fork()) { case -1: return -1; case 0: break; default: _exit(0); } newgrp = setsid(); oerrno = errno; if(osa_ok != -1) sigaction(SIGHUP, &osa, NULL); if(newgrp == -1) { errno = oerrno; return -1; } if(!nochdir) chdir("/"); if(!noclose && (fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) { dup2(fd, STDIN_FILENO); dup2(fd, STDOUT_FILENO); dup2(fd, STDERR_FILENO); if(fd > 2) close(fd); } return 0; } #endif #ifndef HAVE_GETLINE ssize_t getline(char** lineptr, size_t* n, FILE* stream) { return getdelim(lineptr, n, '\n', stream); } #endif #ifndef HAVE_GETDELIM ssize_t getdelim(char** lineptr, size_t* n, int delim, FILE* stream) { size_t written = 0; int allocated, ch; ssize_t ret = -1; char* p; if(!n || !lineptr || !stream) { errno = EINVAL; return -1; } /* Track whether we allocated this or not */ allocated = !(*lineptr); #ifdef HAVE_FLOCKFILE /* Affects performance on Solaris. */ flockfile(stream); #endif for(;;) { if(!*lineptr) *n = 0; /* Reallocate if we need more space */ if(written == *n - 1) { *n = *n ? *n * 2 : 256; if(!(p = (char*)realloc(*lineptr, *n))) { if(allocated && *lineptr) free(*lineptr); errno = ENOMEM; ret = -1; goto finally; } *lineptr = p; } while(written < *n - 1) { #ifdef HAVE_FLOCKFILE ch = getc_unlocked(stream); #else ch = fgetc(stream); #endif if(ferror(stream)) { if(allocated && *lineptr) free(*lineptr); ret = -1; goto finally; } if(ch != EOF) (*lineptr)[written++] = ch; /* Done, null terminate, return */ if(ch == EOF || ch == delim) { (*lineptr)[written] = 0; ret = written ? written : -1; goto finally; } } } finally: #ifdef HAVE_FLOCKFILE funlockfile(stream); #endif return ret; } #endif #ifndef HAVE_ERR_H #include #include #include #include extern char** __argv; static const char* calc_prog_name() { static char prognamebuf[256]; static int prepared = 0; if(!prepared) { const char* beg = strrchr(__argv[0], '\\'); const char* temp = strrchr(__argv[0], '/'); beg = (beg > temp) ? beg : temp; beg = (beg) ? beg + 1 : __argv[0]; temp = strrchr(__argv[0], '.'); temp = (temp > beg) ? temp : __argv[0] + strlen(__argv[0]); if((temp - beg) > 255) temp = beg + 255; strncpy(prognamebuf, beg, temp - beg); prognamebuf[temp - beg] = 0; prepared = 1; } return prognamebuf; } static FILE* err_file; /* file to use for error output */ /* * This is declared to take a `void *' so that the caller is not required * to include first. However, it is really a `FILE *', and the * manual page documents it as such. */ void err_set_file(void *fp) { if (fp) err_file = fp; else err_file = stderr; } void err(int eval, const char *fmt, ...) { va_list ap; va_start(ap, fmt); verrc(eval, errno, fmt, ap); va_end(ap); } void verr(int eval, const char *fmt, va_list ap) { verrc(eval, errno, fmt, ap); } void errc(int eval, int code, const char *fmt, ...) { va_list ap; va_start(ap, fmt); verrc(eval, code, fmt, ap); va_end(ap); } void verrc(int eval, int code, const char *fmt, va_list ap) { if (err_file == 0) err_set_file((FILE *)0); fprintf(err_file, "%s: ", calc_prog_name()); if (fmt != NULL) { vfprintf(err_file, fmt, ap); fprintf(err_file, ": "); } fprintf(err_file, "%s\n", strerror(code)); exit(eval); } void errx(int eval, const char *fmt, ...) { va_list ap; va_start(ap, fmt); verrx(eval, fmt, ap); va_end(ap); } void verrx(int eval, const char *fmt, va_list ap) { if (err_file == 0) err_set_file((FILE *)0); fprintf(err_file, "%s: ", calc_prog_name()); if (fmt != NULL) vfprintf(err_file, fmt, ap); fprintf(err_file, "\n"); exit(eval); } void warn(const char *fmt, ...) { va_list ap; va_start(ap, fmt); vwarnc(errno, fmt, ap); va_end(ap); } void vwarn(const char *fmt, va_list ap) { vwarnc(errno, fmt, ap); } void warnc(int code, const char *fmt, ...) { va_list ap; va_start(ap, fmt); vwarnc(code, fmt, ap); va_end(ap); } void vwarnc(int code, const char *fmt, va_list ap) { if (err_file == 0) err_set_file((FILE *)0); fprintf(err_file, "%s: ", calc_prog_name()); if (fmt != NULL) { vfprintf(err_file, fmt, ap); fprintf(err_file, ": "); } fprintf(err_file, "%s\n", strerror(code)); } void warnx(const char *fmt, ...) { va_list ap; va_start(ap, fmt); vwarnx(fmt, ap); va_end(ap); } void vwarnx(const char *fmt, va_list ap) { if(err_file == 0) err_set_file((FILE*)0); fprintf(err_file, "%s: ", calc_prog_name()); if(fmt != NULL) vfprintf(err_file, fmt, ap); fprintf(err_file, "\n"); } #endif clamsmtp-1.10/common/.svn/tmp/tempfile.6.tmp0000644000175000017500000000412110634000374015636 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef __STRINGX_H__ #define __STRINGX_H__ int check_first_word(const char* line, const char* word, int len, char* delims); int is_first_word(const char* line, const char* word, int len); int is_last_word(const char* line, const char* word, int len); int is_blank_line(const char* line); char* trim_start(const char* data); char* trim_end(char* data); char* trim_space(char* data); int strtob(const char* str); #endif /* __STRINGX_H__ */ clamsmtp-1.10/common/.svn/tmp/tempfile.7.tmp0000644000175000017500000002147010634000374015645 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #include #include #include #include #include #include #include #include #include "sock_any.h" #include #define LOCALHOST_ADDR 0x7F000001 int sock_any_pton(const char* addr, struct sockaddr_any* any, int opts) { size_t l; char buf[256]; char* t; char* t2; int defport = (opts & 0xFFFF); memset(any, 0, sizeof(*any)); /* Just a port? */ do { #define PORT_CHARS "0123456789" #define PORT_MIN 1 #define PORT_MAX 5 int port = 0; l = strspn(addr, PORT_CHARS); if(l < PORT_MIN || l > PORT_MAX || addr[l] != 0) break; port = strtol(addr, &t2, 10); if(*t2 || port <= 0 || port >= 65536) break; any->s.in.sin_port = htons(port); /* Fill in the type based on defaults */ #ifdef HAVE_INET6 if(opts & SANY_OPT_DEFINET6) any->s.in.sin_family = AF_INET6; else #endif any->s.in.sin_family = AF_INET; /* Fill in the address based on defaults */ if(opts & SANY_OPT_DEFLOCAL) { #ifdef HAVE_INET6 if(opts & SANY_OPT_DEFINET6) memcpy(&(any->s.in.sin6_addr), &in6addr_loopback, sizeof(struct in6_addr)); else #endif any->s.in.sin_addr.s_addr = htonl(INADDR_LOOPBACK); } /* * Note the 'any' option is the default since we zero out * the entire structure above. */ any->namelen = sizeof(any->s.in); return AF_INET; } while(0); /* Look and see if we can parse an ipv4 address */ do { #define IPV4_PORT_CHARS #define IPV4_CHARS "0123456789." #define IPV4_MIN 3 #define IPV4_MAX 21 int port = 0; t = NULL; l = strlen(addr); if(l < IPV4_MIN || l > IPV4_MAX) break; strcpy(buf, addr); /* Find the last set that contains just numbers */ l = strspn(buf, IPV4_CHARS); if(l < IPV4_MIN) break; /* Either end of string or port */ if(buf[l] != 0 && buf[l] != ':') break; /* Get the port out */ if(buf[l] != 0) { t = buf + l + 1; buf[l] = 0; } if(t) { port = strtol(t, &t2, 10); if(*t2 || port <= 0 || port >= 65536) break; } any->s.in.sin_family = AF_INET; any->s.in.sin_port = htons((unsigned short)(port <= 0 ? defport : port)); if(inet_pton(AF_INET, buf, &(any->s.in.sin_addr)) <= 0) break; any->namelen = sizeof(any->s.in); return AF_INET; } while(0); #ifdef HAVE_INET6 do { #define IPV6_CHARS "0123456789:" #define IPV6_MIN 3 #define IPV6_MAX 51 int port = -1; t = NULL; l = strlen(addr); if(l < IPV6_MIN || l > IPV6_MAX) break; /* If it starts with a '[' then we can get port */ if(buf[0] == '[') { port = 0; addr++; } strcpy(buf, addr); /* Find the last set that contains just numbers */ l = strspn(buf, IPV6_CHARS); if(l < IPV6_MIN) break; /* Either end of string or port */ if(buf[l] != 0) { /* If had bracket, then needs to end with a bracket */ if(port != 0 || buf[l] != ']') break; /* Get the port out */ t = buf + l + 1; if(*t = ':') t++; } if(t) { port = strtol(t, &t, 10); if(*t || port <= 0 || port >= 65536) break; } any->s.in6.sin6_family = AF_INET6; any->s.in6.sin6_port = htons((unsigned short)port <= 0 : defport : port); if(inet_pton(AF_INET6, buf, &(any->s.in6.sin6_addr)) >= 0) break; any->namelen = sizeof(any->s.in6); return AF_INET6; } while(0); #endif /* A unix socket path */ do { /* No colon and must have a path component */ if(strchr(addr, ':') || !strchr(addr, '/')) break; l = strlen(addr); if(l >= sizeof(any->s.un.sun_path)) break; any->s.un.sun_family = AF_UNIX; strcpy(any->s.un.sun_path, addr); any->namelen = sizeof(any->s.un) - (sizeof(any->s.un.sun_path) - l); return AF_UNIX; } while(0); /* A DNS name and a port? */ do { struct addrinfo* res; int port = 0; t = NULL; l = strlen(addr); if(l >= 255 || !isalpha(addr[0])) break; /* Some basic illegal character checks */ if(strcspn(addr, " /\\") != l) break; strcpy(buf, addr); /* Find the last set that contains just numbers */ t = strchr(buf, ':'); if(t) { *t = 0; t++; } if(t) { port = strtol(t, &t2, 10); if(*t2 || port <= 0 || port >= 65536) break; } /* Try and resolve the domain name */ if(getaddrinfo(buf, NULL, NULL, &res) != 0 || !res) break; memcpy(&(any->s.a), res->ai_addr, sizeof(struct sockaddr)); any->namelen = res->ai_addrlen; freeaddrinfo(res); port = htons((unsigned short)(port <= 0 ? defport : port)); switch(any->s.a.sa_family) { case PF_INET: any->s.in.sin_port = port; break; #ifdef HAVE_INET6 case PF_INET6: any->s.in6.sin6_port = port; break; #endif }; return any->s.a.sa_family; } while(0); return -1; } int sock_any_ntop(const struct sockaddr_any* any, char* addr, size_t addrlen, int opts) { int len = 0; int port = 0; switch(any->s.a.sa_family) { case AF_UNIX: len = strlen(any->s.un.sun_path); if(addrlen < len + 1) { errno = ENOSPC; return -1; } strcpy(addr, any->s.un.sun_path); break; case AF_INET: if(inet_ntop(any->s.a.sa_family, &(any->s.in.sin_addr), addr, addrlen) == NULL) return -1; port = ntohs(any->s.in.sin_port); break; #ifdef HAVE_INET6 case AF_INET6: if(inet_ntop(any->s.a.sa_family, &(any->s.in6.sin6_addr), addr, addrlen) == NULL) return -1; port = ntohs(any->s.in6.sin6_port); break; #endif default: errno = EAFNOSUPPORT; return -1; } if(!(opts & SANY_OPT_NOPORT) && port != 0) { strncat(addr, ":", addrlen); addr[addrlen - 1] = 0; len = strlen(addr); addr += len; addrlen -= len; snprintf(addr, addrlen, "%d", port); } return 0; } int sock_any_cmp(const struct sockaddr_any* a1, const struct sockaddr_any* a2, int opts) { if(a1->s.a.sa_family != a2->s.a.sa_family) return -1; switch(a1->s.a.sa_family) { case AF_UNIX: return strcmp(a1->s.un.sun_path, a2->s.un.sun_path); case AF_INET: if(memcmp(&(a1->s.in.sin_addr), &(a2->s.in.sin_addr), sizeof(a2->s.in.sin_addr)) != 0) return -1; if(!(opts && SANY_OPT_NOPORT) && a1->s.in.sin_port != a2->s.in.sin_port) return -1; return 0; #ifdef HAVE_INET6 case AF_INET6: if(memcmp(&(a1->s.in6.sin6_addr), &(a2->s.in6.sin6_addr), sizeof(a2->s.in6.sin6_addr)) != 0) return -1; if(!(opts && SANY_OPT_NOPORT) && a1->s.in6.sin6_port != a2->s.in6.sin6_port) return -1; return 0; #endif default: errno = EAFNOSUPPORT; return -1; } } clamsmtp-1.10/common/.svn/tmp/tempfile.8.tmp0000644000175000017500000000736610634000374015656 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef _COMPAT_H_ #define _COMPAT_H_ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #ifndef HAVE_STDARG_H #error ERROR: Must have a working stdarg.h header #else #include #endif #ifdef WITH_DMALLOC #include "dmalloc.h" #endif #ifndef HAVE_REALLOCF void* reallocf(void* p, size_t sz); #endif #include #if HAVE_ERR_MUTEX == 1 # define MUTEX_TYPE PTHREAD_MUTEX_ERRORCHECK_NP #else # if HAVE_ERR_MUTEX == 2 # define MUTEX_TYPE PTHREAD_MUTEX_ERRORCHECK # else # undef MUTEX_TYPE # endif #endif #ifndef HAVE_STRLWR char* strlwr(char* s); #endif #ifndef HAVE_STRUPR char* strupr(char* s); #endif #ifndef HAVE_STRLCAT size_t strlcat(char *dst, const char *src, size_t size); #endif #ifndef HAVE_STRLCPY size_t strlcpy(char *dst, const char *src, size_t size); #endif #ifndef HAVE_STRCASESTR const char* strcasestr(const char *s, const char *find); #endif #ifndef HAVE_SETENV int setenv(const char* name, const char* value, int overwrite); #endif #ifndef HAVE_DAEMON int daemon(int nochdir, int noclose); #endif #ifndef HAVE_GETLINE ssize_t getline(char** lineptr, size_t* n, FILE* stream); #endif #ifndef HAVE_GETDELIM ssize_t getdelim(char** lineptr, size_t* n, int delim, FILE* stream); #endif #ifdef HAVE_ERR_H #include #else #include void err_set_file(void *fp); void err_set_exit(void (*ef)(int)); void err(int eval, const char *fmt, ...); void verr(int eval, const char *fmt, va_list ap); void errc(int eval, int code, const char *fmt, ...); void verrc(int eval, int code, const char *fmt, va_list ap); void errx(int eval, const char *fmt, ...); void verrx(int eval, const char *fmt, va_list ap); void warn(const char *fmt, ...); void vwarn(const char *fmt, va_list ap); void warnc(int code, const char *fmt, ...); void vwarnc(int code, const char *fmt, va_list ap); void warnx(const char *fmt, ...); void vwarnx(const char *fmt, va_list ap); #endif #ifdef HAVE_PATHS_H #include #endif #ifndef _PATH_DEVNULL #define _PATH_DEVNULL "/dev/null" #endif #ifndef _PATH_TMP #define _PATH_TMP "/tmp" #endif #endif /* _COMPAT_H_ */ clamsmtp-1.10/common/.svn/tmp/tempfile.9.tmp0000644000175000017500000000605410634000374015650 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef __SPPRIV_H__ #define __SPPRIV_H__ #include "smtppass.h" typedef struct spstate { /* Settings ------------------------------- */ int debug_level; /* The level to print stuff to console */ int max_threads; /* Maximum number of threads to process at once */ struct timeval timeout; /* Timeout for communication */ int keepalives; /* Send server keep alives at this interval */ int transparent; /* Transparent proxying */ int xclient; /* Send XFORWARD info */ const char* directory; /* The temp directory */ const char* user; /* User to run as */ const char* pidfile; /* The pid file for daemon */ const char* header; /* A header to include in the email */ struct sockaddr_any outaddr; /* The outgoing address */ const char* outname; struct sockaddr_any listenaddr; /* Address to listen on */ const char* listenname; /* State --------------------------------- */ const char* name; /* The name of the program */ int quit; /* Quit the process */ int daemonized; /* Whether process is daemonized or not */ /* Internal Use ------------------------- */ char* _p; } spstate_t; extern spstate_t g_state; #endif /* __SPPRIV_H__ */ clamsmtp-1.10/common/.svn/tmp/tempfile.10.tmp0000644000175000017500000016570710634000374015733 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS <<<<<<< .mine * Stef Walter ======= * Stefan Walter >>>>>>> .r1114 * Andreas Steinmetz * Rubio Vaughan * Olivier Beyssac */ #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "usuals.h" #ifdef LINUX_TRANSPARENT_PROXY #include #endif #include "compat.h" #include "sock_any.h" #include "stringx.h" #include "sppriv.h" /* ----------------------------------------------------------------------- * STRUCTURES */ typedef struct spthread { pthread_t tid; /* Written to by the main thread */ int fd; /* The file descriptor or -1 */ } spthread_t; /* ----------------------------------------------------------------------- * DATA */ #define CRLF "\r\n" #define SMTP_TOOLONG "500 Line too long" CRLF #define SMTP_STARTBUSY "421 Server busy, too many connections" CRLF #define SMTP_STARTFAILED "421 Local Error, cannot start thread" CRLF #define SMTP_DATAINTERMED "354 Start mail input; end with ." CRLF #define SMTP_FAILED "451 Local Error" CRLF #define SMTP_NOTSUPP "502 Command not implemented" CRLF #define SMTP_NOTAUTH "554 Insufficient authorization" CRLF #define SMTP_OK "250 Ok" CRLF #define SMTP_REJPREFIX "550 Content Rejected; " #define SMTP_DATA "DATA" CRLF #define SMTP_NOOP "NOOP" CRLF #define SMTP_XCLIENT "XCLIENT ADDR=%s" CRLF #define SMTP_BANNER "220 smtp.passthru" CRLF #define SMTP_HELO_RSP "250 smtp.passthru" CRLF #define SMTP_EHLO_RSP "250-smtp.passthru" CRLF #define SMTP_FEAT_RSP "250 XFILTERED" CRLF #define SMTP_DELIMS "\r\n\t :" #define SMTP_MULTI_DELIMS " -" #define ESMTP_PIPELINE "PIPELINING" #define ESMTP_TLS "STARTTLS" #define ESMTP_CHUNK "CHUNKING" #define ESMTP_BINARY "BINARYMIME" #define ESMTP_CHECK "CHECKPOINT" #define ESMTP_XCLIENT "XCLIENT" #define ESMTP_XEXCH50 "XEXCH50" #define HELO_CMD "HELO" #define EHLO_CMD "EHLO" #define FROM_CMD "MAIL FROM" #define TO_CMD "RCPT TO" #define DATA_CMD "DATA" #define RSET_CMD "RSET" #define STARTTLS_CMD "STARTTLS" #define BDAT_CMD "BDAT" #define XCLIENT_CMD "XCLIENT" #define XFORWARD_CMD "XFORWARD" #define DATA_END_SIG "." CRLF #define DATA_RSP "354" #define OK_RSP "250" #define START_RSP "220" #define RCVD_HEADER "Received:" /* The set of delimiters that can be present between config and value */ #define CFG_DELIMS ": \t" /* Maximum length of the header argument */ #define MAX_HEADER_LENGTH 1024 /* * asctime_r manpage: "stores the string in a user-supplied buffer of * length at least 26". We'll need some more bytes to put timezone * information behind */ #define MAX_DATE_LENGTH 64 #define LINE_TOO_LONG(l) ((l) >= (SP_LINE_LENGTH - 2)) /* ----------------------------------------------------------------------- * CONFIGURATION OPTIONS * * - Be sure that your configuration option needs to go into this * file. More likely it'll go into clamsmtpd.c * - When adding configuration options follow the instructions in * clamsmtpd.c, except add option to spstate_t (sppriv.h) and parse in * sp_parse_option (below) */ #define CFG_MAXTHREADS "MaxConnections" #define CFG_TIMEOUT "TimeOut" #define CFG_OUTADDR "OutAddress" #define CFG_LISTENADDR "Listen" #define CFG_TRANSPARENT "TransparentProxy" #define CFG_DIRECTORY "TempDirectory" #define CFG_KEEPALIVES "KeepAlives" #define CFG_USER "User" #define CFG_PIDFILE "PidFile" #define CFG_XCLIENT "XClient" /* ----------------------------------------------------------------------- * DEFAULT SETTINGS */ #define DEFAULT_SOCKET "10025" #define DEFAULT_PORT 10025 #define DEFAULT_MAXTHREADS 64 #define DEFAULT_TIMEOUT 180 #define DEFAULT_KEEPALIVES 0 /* ----------------------------------------------------------------------- * GLOBALS */ spstate_t g_state; /* The state and configuration of the daemon */ unsigned int g_unique_id = 0x00100000; /* For connection ids */ pthread_mutex_t g_mutex; /* The main mutex */ pthread_mutexattr_t g_mtxattr; /* ----------------------------------------------------------------------- * FORWARD DECLARATIONS */ static void on_quit(int signal); static void drop_privileges(); static void pid_file(int write); static void connection_loop(int sock); static void* thread_main(void* arg); static int smtp_passthru(spctx_t* ctx); static int make_connections(spctx_t* ctx, int client); static int read_server_response(spctx_t* ctx); static int parse_config_file(const char* configfile); static char* parse_address(char* line); static char* parse_xforward(char* line, const char* part); static const char* get_successful_rsp(const char* line, int* cont); static void do_server_noop(spctx_t* ctx); /* Used externally in some cases */ int sp_parse_option(const char* name, const char* option); /* ---------------------------------------------------------------------------------- * BASIC RUN FUNCTIONALITY */ void sp_init(const char* name) { int r; ASSERT(name); memset(&g_state, 0, sizeof(g_state)); sp_message(NULL, LOG_DEBUG, "%s (%s)", name, VERSION); /* Setup the defaults */ g_state.debug_level = -1; g_state.max_threads = DEFAULT_MAXTHREADS; g_state.timeout.tv_sec = DEFAULT_TIMEOUT; g_state.keepalives = DEFAULT_KEEPALIVES; g_state.directory = _PATH_TMP; g_state.name = name; /* We need the default to parse into a useable form, so we do this: */ r = sp_parse_option(CFG_LISTENADDR, DEFAULT_SOCKET); ASSERT(r == 1); /* Create the main mutex and condition variable */ if(pthread_mutexattr_init(&g_mtxattr) != 0 || #ifdef HAVE_ERR_MUTEX pthread_mutexattr_settype(&g_mtxattr, MUTEX_TYPE) || #endif pthread_mutex_init(&g_mutex, &g_mtxattr) != 0) errx(1, "threading problem. can't create mutex or condition var"); } int sp_run(const char* configfile, const char* pidfile, int dbg_level) { int sock; int true = 1; ASSERT(configfile); ASSERT(g_state.name); if(!(dbg_level == -1 || dbg_level <= LOG_DEBUG)) errx(2, "invalid debug log level (must be between 1 and 4)"); g_state.debug_level = dbg_level; g_state.pidfile = pidfile; /* Now parse the configuration file */ if(parse_config_file(configfile) == -1) { /* * We used to do a check here before whether it was the default * configuration file or not, but we can't do that any longer * as it comes from the app. Usually lack of a configuration * file will cause the following checks to fail */ warnx("configuration file not found: %s", configfile); } /* This option has no default, but is required ... */ if(g_state.outname == NULL && !g_state.transparent) errx(2, "no " CFG_OUTADDR " specified."); /* ... unless we're in transparent proxy mode */ else if(g_state.outname != NULL && g_state.transparent) warnx("the " CFG_OUTADDR " option will be ignored when " CFG_TRANSPARENT " is enabled"); sp_messagex(NULL, LOG_DEBUG, "starting up (%s)...", VERSION); /* Drop privileges before daemonizing */ drop_privileges(); /* When set to this we daemonize */ if(g_state.debug_level == -1) { /* Fork a daemon nicely here */ if(daemon(0, 0) == -1) { sp_message(NULL, LOG_ERR, "couldn't run as daemon"); exit(1); } sp_messagex(NULL, LOG_DEBUG, "running as a daemon"); g_state.daemonized = 1; /* Open the system log */ openlog(g_state.name, 0, LOG_MAIL); } /* Handle some signals */ signal(SIGPIPE, SIG_IGN); signal(SIGHUP, SIG_IGN); signal(SIGINT, on_quit); signal(SIGTERM, on_quit); siginterrupt(SIGINT, 1); siginterrupt(SIGTERM, 1); /* Create the socket */ sock = socket(SANY_TYPE(g_state.listenaddr), SOCK_STREAM, 0); if(sock < 0) { sp_message(NULL, LOG_CRIT, "couldn't open socket"); exit(1); } fcntl(sock, F_SETFD, fcntl(sock, F_GETFD, 0) | FD_CLOEXEC); setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void *)&true, sizeof(true)); /* Unlink the socket file if it exists */ if(SANY_TYPE(g_state.listenaddr) == AF_UNIX) unlink(g_state.listenname); if(bind(sock, &SANY_ADDR(g_state.listenaddr), SANY_LEN(g_state.listenaddr)) != 0) { sp_message(NULL, LOG_CRIT, "couldn't bind to address: %s", g_state.listenname); exit(1); } sp_messagex(NULL, LOG_DEBUG, "created socket: %s", g_state.listenname); /* Let 5 connections queue up */ if(listen(sock, 5) != 0) { sp_message(NULL, LOG_CRIT, "couldn't listen on socket"); exit(1); } pid_file(1); sp_messagex(NULL, LOG_DEBUG, "accepting connections"); connection_loop(sock); pid_file(0); /* Our listen socket */ close(sock); sp_messagex(NULL, LOG_DEBUG, "stopped processing"); return 0; } void sp_quit() { /* The handler sets the flag and this also interrupts io */ kill(getpid(), SIGTERM); } int sp_is_quit() { return g_state.quit ? 1 : 0; } void sp_done() { /* Close the mutex */ pthread_mutex_destroy(&g_mutex); pthread_mutexattr_destroy(&g_mtxattr); if(g_state._p) free(g_state._p); memset(&g_state, 0, sizeof(g_state)); } static void on_quit(int signal) { g_state.quit = 1; } static void drop_privileges() { char* t; struct passwd* pw; uid_t uid; if(g_state.user) { if(geteuid() != 0) { sp_messagex(NULL, LOG_WARNING, "must be started as root to switch to user: %s", g_state.user); return; } uid = strtol(g_state.user, &t, 10); if(!t[0]) /* successful parse */ pw = getpwuid(uid); else /* must be a name */ pw = getpwnam(g_state.user); if(pw == NULL) errx(1, "couldn't look up user: %s", g_state.user); if(setgid(pw->pw_gid) == -1 || setuid(pw->pw_uid) == -1) err(1, "unable to switch to user: %s (uid %d, gid %d)", g_state.user, pw->pw_uid, pw->pw_gid); /* A paranoia check */ if(setreuid(-1, 0) == 0) err(1, "unable to completely drop privileges"); sp_messagex(NULL, LOG_DEBUG, "switched to user %s (uid %d, gid %d)", g_state.user, pw->pw_uid, pw->pw_gid); } if(geteuid() == 0) sp_messagex(NULL, LOG_WARNING, "running as root is NOT recommended"); } static void pid_file(int write) { if(!g_state.pidfile) return; if(write) { FILE* f = fopen(g_state.pidfile, "w"); if(f == NULL) { sp_message(NULL, LOG_ERR, "couldn't open pid file: %s", g_state.pidfile); } else { fprintf(f, "%d\n", (int)getpid()); if(ferror(f)) sp_message(NULL, LOG_ERR, "couldn't write to pid file: %s", g_state.pidfile); if(fclose(f) == EOF) sp_message(NULL, LOG_ERR, "couldn't write to pid file: %s", g_state.pidfile); } sp_messagex(NULL, LOG_DEBUG, "wrote pid file: %s", g_state.pidfile); } else { unlink(g_state.pidfile); sp_messagex(NULL, LOG_DEBUG, "removed pid file: %s", g_state.pidfile); } } static void connection_loop(int sock) { spthread_t* threads = NULL; int fd, i, x, r; /* Create the thread buffers */ threads = (spthread_t*)calloc(g_state.max_threads, sizeof(spthread_t)); if(!threads) { sp_messagex(NULL, LOG_CRIT, "out of memory"); return; } /* Now loop and accept the connections */ while(!sp_is_quit()) { fd = accept(sock, NULL, NULL); if(fd == -1) { switch(errno) { case EINTR: case EAGAIN: break; case ECONNABORTED: sp_message(NULL, LOG_ERR, "couldn't accept a connection"); break; default: sp_message(NULL, LOG_ERR, "couldn't accept a connection"); break; }; if(sp_is_quit()) break; continue; } /* Set timeouts on client */ if(setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &(g_state.timeout), sizeof(g_state.timeout)) < 0 || setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &(g_state.timeout), sizeof(g_state.timeout)) < 0) sp_message(NULL, LOG_DEBUG, "couldn't set timeouts on incoming connection"); fcntl(fd, F_SETFD, fcntl(fd, F_GETFD, 0) | FD_CLOEXEC); /* Look for thread and also clean up others */ for(i = 0; i < g_state.max_threads; i++) { /* Find a thread to run or clean up old threads */ if(threads[i].tid != 0) { sp_lock(); x = threads[i].fd; sp_unlock(); if(x == -1) { sp_messagex(NULL, LOG_DEBUG, "cleaning up completed thread"); pthread_join(threads[i].tid, NULL); threads[i].tid = 0; } #ifdef _DEBUG else { /* For debugging connection problems: */ sp_messagex(NULL, LOG_DEBUG, "active connection thread: %x", (int)threads[i].tid); } #endif } /* Start a new thread if neccessary */ if(fd != -1 && threads[i].tid == 0) { threads[i].fd = fd; r = pthread_create(&(threads[i].tid), NULL, thread_main, (void*)(threads + i)); if(r != 0) { errno = r; sp_message(NULL, LOG_ERR, "couldn't create thread"); write(fd, SMTP_STARTFAILED, KL(SMTP_STARTFAILED)); shutdown(fd, SHUT_RDWR); close(fd); fd = -1; break; } sp_messagex(NULL, LOG_DEBUG, "created thread for connection"); fd = -1; break; } } /* Check to make sure we have a thread */ if(fd != -1) { sp_messagex(NULL, LOG_ERR, "too many connections open (max %d). sent busy response", g_state.max_threads); write(fd, SMTP_STARTBUSY, KL(SMTP_STARTBUSY)); shutdown(fd, SHUT_RDWR); close(fd); fd = -1; } } sp_messagex(NULL, LOG_DEBUG, "waiting for threads to quit"); /* Quit all threads here */ for(i = 0; i < g_state.max_threads; i++) { /* Clean up quit threads */ if(threads[i].tid != 0) { if(threads[i].fd != -1) { sp_lock(); fd = threads[i].fd; threads[i].fd = -1; sp_unlock(); shutdown(fd, SHUT_RDWR); close(fd); } sp_messagex(NULL, LOG_DEBUG, "cleaning up completed thread"); pthread_join(threads[i].tid, NULL); threads[i].tid = 0; } } free(threads); } static spctx_t* init_thread(int fd) { spctx_t* ctx; ctx = cb_new_context(); if(ctx) { memset(ctx, 0, sizeof(*ctx)); spio_init(&(ctx->server), "SERVER"); spio_init(&(ctx->client), "CLIENT"); sp_lock(); /* Assign a unique id to the connection */ ctx->id = g_unique_id++; /* We don't care about wraps, but we don't want zero */ if(g_unique_id == 0) g_unique_id++; sp_unlock(); sp_messagex(ctx, LOG_DEBUG, "processing %d on thread %x", fd, (int)pthread_self()); /* Connect to the outgoing server ... */ if(make_connections(ctx, fd) == -1) { cb_del_context(ctx); ctx = NULL; } } return ctx; } static void cleanup_context(spctx_t* ctx) { ASSERT(ctx); if(ctx->cachefile) { fclose(ctx->cachefile); ctx->cachefile = NULL; } if(ctx->cachename[0]) { unlink(ctx->cachename); ctx->cachename[0] = 0; } if(ctx->recipients) { free(ctx->recipients); ctx->recipients = NULL; } if(ctx->sender) { free(ctx->sender); ctx->sender = NULL; } if(ctx->xforwardaddr) { free(ctx->xforwardaddr); ctx->xforwardaddr = NULL; } ctx->logline[0] = 0; } static void done_thread(spctx_t* ctx) { ASSERT(ctx); spio_disconnect(ctx, &(ctx->client)); spio_disconnect(ctx, &(ctx->server)); /* Clean up file stuff */ cleanup_context(ctx); cb_del_context(ctx); } static void* thread_main(void* arg) { spthread_t* thread = (spthread_t*)arg; spctx_t* ctx = NULL; int processing = 0; int ret = 0; int fd; ASSERT(thread); siginterrupt(SIGINT, 1); siginterrupt(SIGTERM, 1); sp_lock(); /* Get the client socket */ fd = thread->fd; sp_unlock(); /* Sometimes we get to this point and then quit is noted */ if(sp_is_quit() || (ctx = init_thread(fd)) == NULL) { /* Special case. We don't have a context so clean up descriptor */ close(fd); /* new_context() should have already logged reason */ RETURN(-1); } /* call the processor */ processing = 1; ret = smtp_passthru(ctx); cleanup: if(ctx) { /* Let the client know about fatal errors */ if(!processing && ret == -1 && spio_valid(&(ctx->client))) spio_write_data(ctx, &(ctx->client), SMTP_STARTFAILED); done_thread(ctx); } /* mark this as done */ sp_lock(); thread->fd = -1; sp_unlock(); return (void*)(ret == 0 ? 0 : 1); } static int make_connections(spctx_t* ctx, int client) { struct sockaddr_any peeraddr; struct sockaddr_any addr; struct sockaddr_any* outaddr; char buf[MAXPATHLEN]; const char* outname; ASSERT(client != -1); /* Setup the incoming connection. This also fills in peeraddr for us */ spio_attach(ctx, &(ctx->client), client, &peeraddr); sp_messagex(ctx, LOG_INFO, "accepted connection from: %s", ctx->client.peername); /* Create the server connection address */ outaddr = &(g_state.outaddr); outname = g_state.outname; /* For transparent proxying we have to discover the address to connect to */ if(g_state.transparent) { memset(&addr, 0, sizeof(addr)); SANY_LEN(addr) = sizeof(addr); #ifdef LINUX_TRANSPARENT_PROXY if(getsockopt(ctx->client.fd, SOL_IP, SO_ORIGINAL_DST, &SANY_ADDR(addr), &SANY_LEN(addr)) == -1) #else if(getsockname(ctx->client.fd, &SANY_ADDR(addr), &SANY_LEN(addr)) == -1) #endif { sp_message(ctx, LOG_ERR, "couldn't get source address for transparent proxying"); return -1; } /* Check address types */ if(sock_any_cmp(&addr, &peeraddr, SANY_OPT_NOPORT) == 0) { sp_messagex(ctx, LOG_ERR, "loop detected in transparent proxying"); return -1; } outaddr = &addr; } /* Check for loopback option */ else if(SANY_TYPE(*outaddr) == AF_INET && outaddr->s.in.sin_addr.s_addr == 0) { /* Use the incoming IP as the default */ memcpy(&addr, &(g_state.outaddr), sizeof(addr)); memcpy(&(addr.s.in.sin_addr), &(peeraddr.s.in.sin_addr), sizeof(addr.s.in.sin_addr)); outaddr = &addr; } #ifdef HAVE_INET6 /* IPv6 loopback? */ else if(SANY_TYPE(*outaddr) == AF_INET6 && outaddr->s.in.in6.sin_addr.s_addr == 0) { /* Use the incoming IP as the default */ memcpy(&addr, &(g_state.outaddr), sizeof(addr)); memcpy(&(addr.s.in.sin6_addr), &(peeraddr.s.in.sin6_addr), sizeof(addr.s.in.sin6_addr)); outaddr = &addr; } #endif /* Not transparent proxy or loopback */ else { /* Resolve any DNS name again */ if(sock_any_pton(g_state.outname, &addr, SANY_OPT_DEFPORT(25)) != -1) memcpy(&(g_state.outaddr), &addr, sizeof(g_state.outaddr)); else sp_messagex(ctx, LOG_WARNING, "couldn't resolve " CFG_OUTADDR ": %s", g_state.outname); } /* Reparse name if needed */ if(outaddr != &(g_state.outaddr)) { if(sock_any_ntop(outaddr, buf, MAXPATHLEN, 0) != -1) outname = buf; else outname = "unknown"; } /* Connect to the server */ if(spio_connect(ctx, &(ctx->server), outaddr, outname) == -1) return -1; return 0; } /* ---------------------------------------------------------------------------------- * SMTP HANDLING */ static int smtp_passthru(spctx_t* ctx) { char* t; const char* p; int r, cont, ret = 0; unsigned int mask; int neterror = 0; int first_rsp = 1; /* The first 220 response from server to be filtered */ int filter_host = 0; /* Next response is 250 hostname, which we change */ /* XCLIENT is for use in access control */ int xclient_sup = 0; /* Is XCLIENT supported? */ int xclient_sent = 0; /* Have we sent an XCLIENT command? */ ASSERT(spio_valid(&(ctx->client)) && spio_valid(&(ctx->server))); #define C_LINE ctx->client.line #define S_LINE ctx->server.line while(!sp_is_quit()) { mask = spio_select(ctx, &(ctx->client), &(ctx->server), NULL); if(mask == ~0) { neterror = 1; RETURN(-1); } /* Client has data available, read a line and process */ if(mask & 1) { if((r = spio_read_line(ctx, &(ctx->client), SPIO_DISCARD)) == -1) RETURN(-1); /* Client disconnected, we're done */ if(r == 0) RETURN(0); /* We don't let clients send really long lines */ if(LINE_TOO_LONG(r)) { if(spio_write_data(ctx, &(ctx->client), SMTP_TOOLONG) == -1) RETURN(-1); continue; } /* Only valid after EHLO or HELO commands */ filter_host = 0; /* * At this point we may want to send our XCLIENT. This is a per * connection command. */ if(xclient_sup && !xclient_sent && g_state.xclient) { sp_messagex(ctx, LOG_DEBUG, "sending XCLIENT"); if(spio_write_dataf(ctx, &(ctx->server), SMTP_XCLIENT, ctx->client.peername) == -1) RETURN(-1); if(read_server_response(ctx) == -1) RETURN(-1); if(!get_successful_rsp(S_LINE, NULL)) sp_messagex(ctx, LOG_WARNING, "server didn't accept XCLIENT"); xclient_sent = 1; } /* Handle the DATA section via our AV checker */ if(is_first_word(C_LINE, DATA_CMD, KL(DATA_CMD))) { /* Send back the intermediate response to the client */ if(spio_write_data(ctx, &(ctx->client), SMTP_DATAINTERMED) == -1) RETURN(-1); /* * Now go into scan mode. This also handles the eventual * sending of the data to the server, making the av check * transparent */ if(cb_check_data(ctx) == -1) RETURN(-1); /* Print the log out for this email */ sp_messagex(ctx, LOG_INFO, "%s", ctx->logline); /* Done with that email */ cleanup_context(ctx); /* Command handled */ continue; } /* * We need our response to HELO and EHLO to be modified in order * to prevent complaints about mail loops */ else if(is_first_word(C_LINE, EHLO_CMD, KL(EHLO_CMD))) { /* EHLO can have multline responses so we set a flag */ filter_host = 1; } /* * We always support XCLIENT on a HELO type connection. We do this * for security reasons, so that a client can't get around filtering * by backing up one on the protocol. */ else if(is_first_word(C_LINE, HELO_CMD, KL(HELO_CMD))) { sp_messagex(ctx, LOG_DEBUG, "XCLIENT support assumed"); xclient_sup = 1; /* Filter host as with EHLO above */ filter_host = 1; } /* * We don't like these commands. Filter them out. We should have * filtered out their service extensions earlier in the EHLO response. * This is just for errant clients. */ else if(is_first_word(C_LINE, STARTTLS_CMD, KL(STARTTLS_CMD)) || is_first_word(C_LINE, BDAT_CMD, KL(BDAT_CMD))) { sp_messagex(ctx, LOG_DEBUG, "ESMTP feature not supported"); if(spio_write_data(ctx, &(ctx->client), SMTP_NOTSUPP) == -1) RETURN(-1); /* Command handled */ continue; } /* * For security reasons we're not about to forward any XCLIENTs * from our client through. This could lead to a client using our * privileged IP address to change an audit trail or relay etc... */ else if(is_first_word(C_LINE, XCLIENT_CMD, KL(XCLIENT_CMD))) { sp_messagex(ctx, LOG_WARNING, "client attempted use of privileged XCLIENT feature"); if(spio_write_data(ctx, &(ctx->client), SMTP_NOTAUTH) == -1) RETURN(-1); /* Command handled */ continue; } /* All other commands just get passed through to server */ if(spio_write_data(ctx, &(ctx->server), C_LINE) == -1) RETURN(-1); continue; } /* Server has data available, read a line and forward */ if(mask & 2) { if((r = spio_read_line(ctx, &(ctx->server), SPIO_DISCARD)) == -1) RETURN(-1); if(r == 0) RETURN(0); if(LINE_TOO_LONG(r)) sp_messagex(ctx, LOG_WARNING, "SMTP response line too long. discarded extra"); /* * We intercept the first response we get from the server. * This allows us to change header so that it doesn't look * to the client server that we're in a wierd loop. * * In different situations using the local hostname or * 'localhost' don't work because the receiving mail server * expects one of those to be its own name. We use 'clamsmtp' * instead. No properly configured server would have this * as their domain name, and RFC 2821 allows us to use * an arbitrary but identifying string. */ if(first_rsp) { first_rsp = 0; if(is_first_word(S_LINE, START_RSP, KL(START_RSP))) { sp_messagex(ctx, LOG_DEBUG, "intercepting initial response"); if(spio_write_data(ctx, &(ctx->client), SMTP_BANNER) == -1) RETURN(-1); /* Command handled */ continue; } } if((p = get_successful_rsp(S_LINE, &cont)) != NULL) { /* * Certain mail servers (Postfix 1.x in particular) do a loop check * on the 250 response after a EHLO or HELO. This is where we * filter that to prevent loopback errors. */ if(filter_host) { /* Can have multi-line responses, and we want to be * sure to only replace the first one. */ filter_host = 0; sp_messagex(ctx, LOG_DEBUG, "intercepting host response"); if(spio_write_data(ctx, &(ctx->client), cont ? SMTP_EHLO_RSP : SMTP_HELO_RSP) == -1) RETURN(-1); /* A new email so cleanup */ cleanup_context(ctx); continue; } /* * Filter out any EHLO responses that we can't or don't want * to support. For example pipelining or TLS. */ if(is_first_word(C_LINE, EHLO_CMD, KL(EHLO_CMD))) { /* * On ESMTP connections we let the server tell us whether it * wants XCLIENTs or not. (In contrast to old SMTP above). */ if(is_first_word(p, ESMTP_XCLIENT, KL(ESMTP_XCLIENT))) { sp_messagex(ctx, LOG_DEBUG, "XCLIENT supported"); xclient_sup = 1; } if(is_first_word(p, ESMTP_PIPELINE, KL(ESMTP_PIPELINE)) || is_first_word(p, ESMTP_TLS, KL(ESMTP_TLS)) || is_first_word(p, ESMTP_CHUNK, KL(ESMTP_CHUNK)) || is_first_word(p, ESMTP_BINARY, KL(ESMTP_BINARY)) || is_first_word(p, ESMTP_CHECK, KL(ESMTP_CHECK)) || is_first_word(p, ESMTP_XCLIENT, KL(ESMTP_XCLIENT)) || is_first_word(p, ESMTP_XEXCH50, KL(ESMTP_XEXCH50))) { sp_messagex(ctx, LOG_DEBUG, "filtered ESMTP feature: %s", trim_space((char*)p)); /* * If this is the last line in the EHLO response we need * to replace it with something else */ if(!cont) { if(spio_write_data(ctx, &(ctx->client), SMTP_FEAT_RSP) == -1) RETURN(-1); } continue; } } /* MAIL FROM (that the server accepted) */ if((r = check_first_word(C_LINE, FROM_CMD, KL(FROM_CMD), SMTP_DELIMS)) > 0) { t = parse_address(C_LINE + r); sp_add_log(ctx, "from=", t); /* Make note of the sender for later */ ctx->sender = (char*)reallocf(ctx->sender, strlen(t) + 1); if(ctx->sender) strcpy(ctx->sender, t); } /* RCPT TO (that the server accepted) */ else if((r = check_first_word(C_LINE, TO_CMD, KL(TO_CMD), SMTP_DELIMS)) > 0) { t = parse_address(C_LINE + r); sp_add_log(ctx, "to=", t); /* Make note of the recipient for later */ r = ctx->recipients ? strlen(ctx->recipients) : 0; ctx->recipients = (char*)reallocf(ctx->recipients, r + strlen(t) + 2); if(ctx->recipients) { /* Recipients are separated by lines */ if(r != 0) strcat(ctx->recipients, "\n"); else ctx->recipients[0] = 0; strcat(ctx->recipients, t); } } /* * If the client sends an XFORWARD, and the server accepted it, * we store address for use in our forked process environment * variables (see sp_setup_forked). */ else if(is_first_word(C_LINE, XFORWARD_CMD, KL(XFORWARD_CMD))) { if((t = parse_xforward (C_LINE + KL(XFORWARD_CMD), "ADDR"))) { ctx->xforwardaddr = (char*)reallocf(ctx->xforwardaddr, strlen(t) + 1); if(ctx->xforwardaddr) strcpy(ctx->xforwardaddr, t); } } /* RSET */ else if(is_first_word(C_LINE, RSET_CMD, KL(RSET_CMD))) { cleanup_context(ctx); } } if(spio_write_data(ctx, &(ctx->client), S_LINE) == -1) RETURN(-1); continue; } } cleanup: if(!neterror && ret == -1 && spio_valid(&(ctx->client))) spio_write_data(ctx, &(ctx->client), SMTP_FAILED); return ret; } /* ----------------------------------------------------------------------------- * SMTP PASSTHRU FUNCTIONS FOR DATA CHECK */ static char* parse_address(char* line) { char* t; line = trim_start(line); /* * We parse out emails in the form of * as well as accept other addresses. */ if(strncmp(line, "<>", 2) == 0) return("<>"); if(line[0] == '<') { if((t = strchr(line, '>')) != NULL) { *t = 0; line++; return line; } } return trim_end(line); } static char* parse_xforward(char* line, const char* part) { char* t; char* e; t = strcasestr(line, part); if(!t) return NULL; /* equals sign and surrounding */ t = trim_start(t + strlen(part)); if(*t != '=') return NULL; t = trim_start(t + 1); if(!*t) return NULL; /* Find the end of the thingy */ if(*t == '[') { t++; e = strchr(t, ']'); } else { e = t + strcspn(t, " \t"); } if(!e) return NULL; *e = 0; return t; } static const char* get_successful_rsp(const char* line, int* cont) { /* * We check for both '250 xxx' type replies * and the continued response '250-xxxx' type */ line = trim_start(line); if(line[0] == '2' && isdigit(line[1]) && isdigit(line[2]) && (line[3] == ' ' || line[3] == '-')) { if(cont) *cont = (line[3] == '-'); return line + 4; } return NULL; } void sp_add_log(spctx_t* ctx, char* prefix, char* line) { char* t = ctx->logline; int l = strlen(t); int x; ASSERT(l <= SP_LOG_LINE_LEN); /* Add up necessary lengths */ x = 2 + strlen(prefix) + strlen(line) + 1; if(l + x >= SP_LOG_LINE_LEN) l = SP_LOG_LINE_LEN - x; t += l; l = SP_LOG_LINE_LEN - l; *t = 0; if(ctx->logline[0] != 0) strlcat(t, ", ", l); strlcat(t, prefix, l); /* Skip initial white space */ line = trim_start(line); strlcat(t, line, l); /* Skip later white space */ trim_end(t); } int sp_read_data(spctx_t* ctx, const char** data) { int r; ASSERT(ctx); ASSERT(data); *data = NULL; switch(r = spio_read_line(ctx, &(ctx->client), SPIO_QUIET)) { case 0: sp_messagex(ctx, LOG_ERR, "unexpected end of data from client"); return -1; case -1: /* Message already printed */ return -1; }; if(g_state.keepalives > 0) { /* * During this time we're just reading from the client. If we haven't * had any interaction with the server recently then send something * to let it know we're still around. */ if((ctx->server.last_action + g_state.keepalives) < time(NULL)) do_server_noop(ctx); } if(ctx->_crlf && strcmp(ctx->client.line, DATA_END_SIG) == 0) return 0; /* Check if this line ended with a CRLF */ ctx->_crlf = (strcmp(CRLF, ctx->client.line + (r - KL(CRLF))) == 0); *data = ctx->client.line; return r; } int sp_write_data(spctx_t* ctx, const char* buf, int len) { int r = 0; ASSERT(ctx); /* When a null buffer close the cache file */ if(!buf) { if(ctx->cachefile) { if(fclose(ctx->cachefile) == EOF) { sp_message(ctx, LOG_ERR, "couldn't write to cache file: %s", ctx->cachename); r = -1; } ctx->cachefile = NULL; } return r; } /* Make sure we have a file open */ if(!ctx->cachefile) { int tfd; /* Make sure afore mentioned file is gone */ if(ctx->cachename[0]) unlink(ctx->cachename); snprintf(ctx->cachename, MAXPATHLEN, "%s/%s.XXXXXX", g_state.directory, g_state.name); if((tfd = mkstemp(ctx->cachename)) == -1 || (ctx->cachefile = fdopen(tfd, "w")) == NULL) { if(tfd != -1) close(tfd); sp_message(ctx, LOG_ERR, "couldn't open cache file"); return -1; } fcntl(tfd, F_SETFD, fcntl(tfd, F_GETFD, 0) | FD_CLOEXEC); sp_messagex(ctx, LOG_DEBUG, "created cache file: %s", ctx->cachename); } fwrite(buf, 1, len, ctx->cachefile); if(ferror(ctx->cachefile)) { sp_message(ctx, LOG_ERR, "couldn't write to cache file: %s", ctx->cachename); return -1; } return len; } int sp_cache_data(spctx_t* ctx) { int r, count = 0; const char* data; while((r = sp_read_data(ctx, &data)) != 0) { if(r < 0) return -1; /* Message already printed */ count += r; if((r = sp_write_data(ctx, data, r)) < 0) return -1; /* Message already printed */ } /* End the caching */ if(sp_write_data(ctx, NULL, 0) < 0) return -1; sp_messagex(ctx, LOG_DEBUG, "wrote %d bytes to cache", count); return count; } /* Important: |date| should be at least MAX_DATE_LENGTH long */ static void make_date(spctx_t* ctx, char* date) { size_t date_len; struct tm t2; time_t t; /* Get a basic date like: 'Wed Jun 30 21:49:08 1993' */ if(time(&t) == (time_t)-1 || !localtime_r(&t, &t2) || !asctime_r(&t2, date)) { sp_message(ctx, LOG_WARNING, "unable to get date for header"); date[0] = 0; return; } trim_end(date); date_len = strlen(date); { #ifdef HAVE_TM_GMTOFF time_t timezone = t2.tm_gmtoff; const char *tzname[2] = { t2.tm_zone, t2.tm_zone }; snprintf(date + date_len, MAX_DATE_LENGTH - date_len, " %+03d%02d (%s)", (int)(timezone / 3600), (int)(timezone % 3600), tzname[t2.tm_isdst ? 1 : 0]); #else /* Apparently Solaris needs this nasty hack.... */ #define DAY_MIN (24 * HOUR_MIN) #define HOUR_MIN 60 #define MIN_SEC 60 struct tm gmt; struct tm *lt; int off; gmt = *gmtime(&t); lt = localtime(&t); off = (lt->tm_hour - gmt.tm_hour) * HOUR_MIN + lt->tm_min - gmt.tm_min; if (lt->tm_year < gmt.tm_year) off -= DAY_MIN; else if (lt->tm_year > gmt.tm_year) off += DAY_MIN; else if (lt->tm_yday < gmt.tm_yday) off -= DAY_MIN; else if (lt->tm_yday > gmt.tm_yday) off += DAY_MIN; if (lt->tm_sec <= gmt.tm_sec - MIN_SEC) off -= 1; else if (lt->tm_sec >= gmt.tm_sec + MIN_SEC) off += 1; snprintf(date + date_len, MAX_DATE_LENGTH - date_len, " %+03d%02d (%s)", (int)(off / HOUR_MIN), (int)(abs(off) % HOUR_MIN), tzname[lt->tm_isdst ? 1 : 0]); #endif } /* Break it off just in case */ date[MAX_DATE_LENGTH - 1] = 0; } /* Important: |header| should be a buffer of MAX_HEADER_LENGTH */ static int make_header(spctx_t* ctx, const char* format_str, char* header) { char date[MAX_DATE_LENGTH]; int remaining, l; const char* f; char* p; date[0] = 0; remaining = MAX_HEADER_LENGTH - 1; p = header; /* Parse the format string and replace special characters with our data */ for(f = format_str; *f && remaining > 0; f++) { /* A backslash escapes certain characters */ if(f[0] == '\\' && f[1] != 0) { switch(*(++f)) { case 'r': *p = '\r'; break; case 'n': *p = '\n'; break; case 't': *p = '\t'; break; default: *p = *f; break; } ++p; --remaining; } /* * Special symbols: * %i: client's IP * %l: server's IP * %d: date */ else if(f[0] == '%' && f[1] != 0) { switch(*(++f)) { case 'i': l = strlen(ctx->client.peername); strncpy(p, ctx->client.peername, remaining); remaining -= l; p += l; break; case 'l': l = strlen(ctx->client.localname); strncpy(p, ctx->client.localname, remaining); remaining -= l; p += l; break; case 'd': if(date[0] == 0) make_date(ctx, date); l = strlen(date); strncpy(p, date, remaining); remaining -= l; p += l; break; case '%': *p = '%'; ++p; break; default: sp_messagex(ctx, LOG_WARNING, "invalid header symbol: %%%c", *f); break; }; } else { *(p++) = *f; remaining--; } } if((p + 1) < (header + MAX_HEADER_LENGTH)) p[1] = 0; header[MAX_HEADER_LENGTH - 1] = 0; l = p - header; return l >= MAX_HEADER_LENGTH ? MAX_HEADER_LENGTH - 1 : l; } int sp_done_data(spctx_t* ctx, const char *headertmpl) { FILE* file = 0; int ret = 0; char *line; char header[MAX_HEADER_LENGTH] = ""; size_t header_len, line_len; int header_prepend = 0; ssize_t rc; ASSERT(ctx->cachename[0]); /* Must still be around */ ASSERT(!ctx->cachefile); /* File must be closed */ memset(header, 0, sizeof(header)); /* Alloc line buffer */ line_len = SP_LINE_LENGTH; if((line = (char *)malloc(line_len)) == NULL) RETURN(-1); /* Open the file */ file = fopen(ctx->cachename, "r"); if(file == NULL) { sp_message(ctx, LOG_ERR, "couldn't open cache file: %s", ctx->cachename); RETURN(-1); } /* Ask the server for permission to send data */ if(spio_write_data(ctx, &(ctx->server), SMTP_DATA) == -1) RETURN(-1); if(read_server_response(ctx) == -1) RETURN(-1); /* If server returns an error then tell the client */ if(!is_first_word(ctx->server.line, DATA_RSP, KL(DATA_RSP))) { if(spio_write_data(ctx, &(ctx->client), ctx->server.line) == -1) RETURN(-1); sp_messagex(ctx, LOG_DEBUG, "server refused data transfer"); RETURN(0); } sp_messagex(ctx, LOG_DEBUG, "sending from cache file: %s", ctx->cachename); if(headertmpl) { header_len = make_header(ctx, headertmpl, header); if(is_first_word(RCVD_HEADER, header, KL(RCVD_HEADER))) header_prepend = 1; } /* If we have to prepend the header, do it */ if(header[0] != '\0' && header_prepend) { if(spio_write_data_raw(ctx, &(ctx->server), (unsigned char*)header, header_len) == -1 || spio_write_data_raw(ctx, &(ctx->server), (unsigned char*)CRLF, KL(CRLF)) == -1) RETURN(-1); header[0] = '\0'; } /* Transfer actual file data */ while((rc = getline(&line, &line_len, file)) != -1) { /* * If the line is . we need to change it so that * it doesn't end the email. We do this by adding a space. * This won't occur much in clamsmtpd, but proxsmtpd might * have filters that accidentally put this in. */ if(strcmp(line, "." CRLF) == 0) strncpy(line, ". " CRLF, SP_LINE_LENGTH); if(header[0] != '\0') { /* * The first blank line we see means the headers are done. * At this point we add in our virus checked header. */ if(is_blank_line(line)) { if(spio_write_data_raw(ctx, &(ctx->server), (unsigned char*)header, header_len) == -1 || spio_write_data_raw(ctx, &(ctx->server), (unsigned char*)CRLF, KL(CRLF)) == -1) RETURN(-1); header[0] = '\0'; } } if(spio_write_data_raw(ctx, &(ctx->server), (unsigned char*)line, rc) == -1) RETURN(-1); } if(ferror(file)) sp_message(ctx, LOG_ERR, "error reading cache file: %s", ctx->cachename); if(ferror(file) || spio_write_data(ctx, &(ctx->server), DATA_END_SIG) == -1) { /* Tell the client it went wrong */ spio_write_data(ctx, &(ctx->client), SMTP_FAILED); RETURN(-1); } sp_messagex(ctx, LOG_DEBUG, "sent email data"); /* Okay read the response from the server and echo it to the client */ if(read_server_response(ctx) == -1) RETURN(-1); if(spio_write_data(ctx, &(ctx->client), ctx->server.line) == -1) RETURN(-1); cleanup: if(line) free(line); if(file) fclose(file); /* read-only so no error check */ return ret; } int sp_fail_data(spctx_t* ctx, const char* smtp_status) { char buf[256 + KL(SMTP_REJPREFIX) + KL(CRLF) + 1]; char* t = NULL; int len, x; int pref = 0; int crlf = 0; if(smtp_status == NULL) smtp_status = SMTP_FAILED; x = strtol(smtp_status, &t, 10); len = strlen(smtp_status); /* We need 3 digits and CRLF at the end for a premade SMTP message */ if(x == 0 || t != smtp_status + 3) pref = 1; /* We need a CRLF at the end */ if(strcmp(smtp_status + (len - KL(CRLF)), CRLF) != 0) crlf = 1; if(pref || crlf) { /* Note that we truncate long lines */ snprintf(buf, sizeof(buf), "%s%.256s%s", pref ? SMTP_REJPREFIX : "", smtp_status, crlf ? CRLF : ""); buf[sizeof(buf) - 1] = 0; smtp_status = buf; } if(spio_write_data(ctx, &(ctx->client), smtp_status) == -1) return -1; return 0; } static int read_server_response(spctx_t* ctx) { int r; /* Read response line from the server */ if((r = spio_read_line(ctx, &(ctx->server), SPIO_DISCARD)) == -1) return -1; if(r == 0) { sp_messagex(ctx, LOG_ERR, "server disconnected unexpectedly"); /* Tell the client it went wrong */ spio_write_data(ctx, &(ctx->client), SMTP_FAILED); return 0; } if(LINE_TOO_LONG(r)) sp_messagex(ctx, LOG_WARNING, "SMTP response line too long. discarded extra"); return 0; } static void do_server_noop(spctx_t* ctx) { if(spio_valid(&(ctx->server))) { if(spio_write_data(ctx, &(ctx->server), SMTP_NOOP) != -1) spio_read_line(ctx, &(ctx->server), SPIO_DISCARD); } } void sp_setup_forked(spctx_t* ctx, int file) { /* Signals we've messed with */ signal(SIGPIPE, SIG_DFL); signal(SIGHUP, SIG_DFL); signal(SIGINT, SIG_DFL); signal(SIGTERM, SIG_DFL); siginterrupt(SIGINT, 0); siginterrupt(SIGTERM, 0); if(ctx->sender) setenv("SENDER", ctx->sender, 1); if(ctx->recipients) setenv("RECIPIENTS", ctx->recipients, 1); if(file && ctx->cachename[0]) setenv("EMAIL", ctx->cachename, 1); if(spio_valid(&(ctx->client))) setenv("CLIENT", ctx->client.peername, 1); if(ctx->xforwardaddr) setenv("REMOTE", ctx->xforwardaddr, 1); if(spio_valid(&(ctx->server))) setenv("SERVER", ctx->server.peername, 1); setenv("TMPDIR", g_state.directory, 1); } /* ---------------------------------------------------------------------------------- * LOGGING */ const char kMsgDelimiter[] = ": "; #define MAX_MSGLEN 1024 static void vmessage(spctx_t* ctx, int level, int err, const char* msg, va_list ap) { char buf[MAX_MSGLEN]; int e = errno; if(g_state.daemonized) { if(level >= LOG_DEBUG) return; } else { if(g_state.debug_level < level) return; } ASSERT(msg); if(ctx) snprintf(buf, MAX_MSGLEN, "%06X: %s%s", ctx->id, msg, err ? ": " : ""); else snprintf(buf, MAX_MSGLEN, "%s%s", msg, err ? ": " : ""); if(err) { /* strerror_r doesn't want to work for us for some reason len = strlen(buf); strerror_r(e, buf + len, MAX_MSGLEN - len); */ sp_lock(); strncat(buf, strerror(e), MAX_MSGLEN); sp_unlock(); } /* As a precaution */ buf[MAX_MSGLEN - 1] = 0; /* Either to syslog or stderr */ if(g_state.daemonized) vsyslog(level, buf, ap); else vwarnx(buf, ap); } void sp_messagex(spctx_t* ctx, int level, const char* msg, ...) { va_list ap; va_start(ap, msg); vmessage(ctx, level, 0, msg, ap); va_end(ap); } void sp_message(spctx_t* ctx, int level, const char* msg, ...) { va_list ap; va_start(ap, msg); vmessage(ctx, level, 1, msg, ap); va_end(ap); } /* ----------------------------------------------------------------------- * LOCKING */ void sp_lock() { int r; #ifdef _DEBUG int wait = 0; #endif #ifdef _DEBUG r = pthread_mutex_trylock(&g_mutex); if(r == EBUSY) { wait = 1; sp_message(NULL, LOG_DEBUG, "thread will block: %d", pthread_self()); r = pthread_mutex_lock(&g_mutex); } #else r = pthread_mutex_lock(&g_mutex); #endif if(r != 0) { errno = r; sp_message(NULL, LOG_CRIT, "threading problem. couldn't lock mutex"); } #ifdef _DEBUG else if(wait) { sp_message(NULL, LOG_DEBUG, "thread unblocked: %d", pthread_self()); } #endif } void sp_unlock() { int r = pthread_mutex_unlock(&g_mutex); if(r != 0) { errno = r; sp_message(NULL, LOG_CRIT, "threading problem. couldn't unlock mutex"); } } /* ----------------------------------------------------------------------------- * CONFIG FILE */ int sp_parse_option(const char* name, const char* value) { char* t; int ret = 0; if(strcasecmp(CFG_MAXTHREADS, name) == 0) { g_state.max_threads = strtol(value, &t, 10); if(*t || g_state.max_threads <= 1 || g_state.max_threads >= 1024) errx(2, "invalid setting: " CFG_MAXTHREADS " (must be between 1 and 1024)"); ret = 1; } else if(strcasecmp(CFG_TIMEOUT, name) == 0) { g_state.timeout.tv_sec = strtol(value, &t, 10); if(*t || g_state.timeout.tv_sec <= 0) errx(2, "invalid setting: " CFG_TIMEOUT); ret = 1; } else if(strcasecmp(CFG_KEEPALIVES, name) == 0) { g_state.keepalives = strtol(value, &t, 10); if(*t || g_state.keepalives < 0) errx(2, "invalid setting: " CFG_KEEPALIVES); ret = 1; } else if(strcasecmp(CFG_XCLIENT, name) == 0) { if((g_state.xclient = strtob(value)) == -1) errx(2, "invalid value for " CFG_XCLIENT); ret = 1; } else if(strcasecmp(CFG_OUTADDR, name) == 0) { if(sock_any_pton(value, &(g_state.outaddr), SANY_OPT_DEFPORT(25)) == -1) errx(2, "invalid " CFG_OUTADDR " socket name or ip: %s", value); g_state.outname = value; ret = 1; } else if(strcasecmp(CFG_LISTENADDR, name) == 0) { if(sock_any_pton(value, &(g_state.listenaddr), SANY_OPT_DEFANY | SANY_OPT_DEFPORT(DEFAULT_PORT)) == -1) errx(2, "invalid " CFG_LISTENADDR " socket name or ip: %s", value); g_state.listenname = value; ret = 1; } else if(strcasecmp(CFG_TRANSPARENT, name) == 0) { if((g_state.transparent = strtob(value)) == -1) errx(2, "invalid value for " CFG_TRANSPARENT); ret = 1; } else if(strcasecmp(CFG_DIRECTORY, name) == 0) { if(strlen(value) == 0) errx(2, "invalid setting: " CFG_DIRECTORY); g_state.directory = value; ret = 1; } else if(strcasecmp(CFG_USER, name) == 0) { if(strlen(value) == 0) errx(2, "invalid setting: " CFG_USER); g_state.user = value; ret = 1; } else if(strcasecmp(CFG_PIDFILE, name) == 0) { if(g_state.pidfile != NULL) sp_messagex(NULL, LOG_WARNING, "ignoring pid file specified on the command line. "); if(strlen(value) == 0) g_state.pidfile = NULL; else g_state.pidfile = value; ret = 1; } /* Always pass through to program */ if(cb_parse_option(name, value) == 1) ret = 1; return ret; } static int parse_config_file(const char* configfile) { FILE* f = NULL; long len; char* p; char* t; char* n; ASSERT(configfile); ASSERT(!g_state._p); f = fopen(configfile, "r"); if(f == NULL) { /* Soft errors when default config file and not found */ if((errno == ENOENT || errno == ENOTDIR)) return -1; else err(1, "couldn't open config file: %s", configfile); } /* Figure out size */ if(fseek(f, 0, SEEK_END) == -1 || (len = ftell(f)) == -1 || fseek(f, 0, SEEK_SET) == -1) err(1, "couldn't seek config file: %s", configfile); if((g_state._p = (char*)malloc(len + 2)) == NULL) errx(1, "out of memory"); /* And read in one block */ if(fread(g_state._p, 1, len, f) != len) err(1, "couldn't read config file: %s", configfile); fclose(f); sp_messagex(NULL, LOG_DEBUG, "read config file: %s", configfile); /* Double null terminate the data */ p = g_state._p; p[len] = '\n'; p[len + 1] = 0; n = g_state._p; /* Go through lines and process them */ while((t = strchr(n, '\n')) != NULL) { *t = 0; p = n; /* Do this before cleaning below */ n = t + 1; p = trim_start(p); /* Comments and empty lines */ if(*p == 0 || *p == '#') continue; /* Look for the break between name: value */ t = strchr(p, ':'); if(t == NULL) errx(2, "invalid config line: %s", p); /* Null terminate and split value part */ *t = 0; t++; t = trim_space(t); p = trim_space(p); /* Pass it through our options parsers */ if(sp_parse_option(p, t) == 0) /* If not recognized then it's invalid */ errx(2, "invalid config line: %s", p); sp_messagex(NULL, LOG_DEBUG, "parsed option: %s: %s", p, t); } return 0; } clamsmtp-1.10/common/.svn/tmp/tempfile.11.tmp0000644000175000017500000004101210634000374015712 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter */ /* * select() and stdio are basically mutually exclusive. * Hence all of this code to try to get some buffering * along with select IO multiplexing. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "compat.h" #include "usuals.h" #include "sock_any.h" #include "stringx.h" #include "sppriv.h" #define MAX_LOG_LINE 79 #define GET_IO_NAME(io) ((io)->name ? (io)->name : "??? ") #define HAS_EXTRA(io) ((io)->_ln > 0) static void close_raw(int* fd) { ASSERT(fd); shutdown(*fd, SHUT_RDWR); close(*fd); *fd = -1; } static void log_io_data(spctx_t* ctx, spio_t* io, const char* data, int read) { char buf[MAX_LOG_LINE + 1]; int pos, len; ASSERT(ctx && io && data); for(;;) { data += strspn(data, "\r\n"); if(!*data) break; pos = strcspn(data, "\r\n"); len = pos < MAX_LOG_LINE ? pos : MAX_LOG_LINE; memcpy(buf, data, len); buf[len] = 0; sp_messagex(ctx, LOG_DEBUG, "%s%s%s", GET_IO_NAME(io), read ? " < " : " > ", buf); data += pos; } } void spio_init(spio_t* io, const char* name) { ASSERT(io && name); memset(io, 0, sizeof(*io)); io->name = name; io->fd = -1; } void spio_attach(spctx_t* ctx, spio_t* io, int fd, struct sockaddr_any* peer) { struct sockaddr_any peeraddr; struct sockaddr_any locaddr; io->fd = fd; /* Get the address on which we accepted the connection */ memset(&locaddr, 0, sizeof(locaddr)); SANY_LEN(locaddr) = sizeof(locaddr); if(getsockname(fd, &SANY_ADDR(locaddr), &SANY_LEN(locaddr)) == -1 || sock_any_ntop(&locaddr, io->localname, MAXPATHLEN, SANY_OPT_NOPORT) == -1) { if (errno != EAFNOSUPPORT) sp_message(ctx, LOG_WARNING, "%s: couldn't get socket address", GET_IO_NAME(io)); strlcpy(io->localname, "UNKNOWN", MAXPATHLEN); } /* If the caller doesn't want the peer then use our own */ if (peer == NULL) peer = &peeraddr; memset(peer, 0, sizeof(*peer)); SANY_LEN(*peer) = sizeof(*peer); if(getpeername(fd, &SANY_ADDR(*peer), &SANY_LEN(*peer)) == -1 || sock_any_ntop(peer, io->peername, MAXPATHLEN, SANY_OPT_NOPORT) == -1) { if (errno != EAFNOSUPPORT) sp_message(ctx, LOG_WARNING, "%s: couldn't get peer address", GET_IO_NAME(io)); strlcpy(io->peername, "UNKNOWN", MAXPATHLEN); } /* As a double check */ io->line[0] = 0; io->_nx = NULL; io->_ln = 0; } int spio_connect(spctx_t* ctx, spio_t* io, const struct sockaddr_any* sany, const char* addrname) { int ret = 0; int fd; ASSERT(ctx && io && sany && addrname); ASSERT(io->fd == -1); if((fd = socket(SANY_TYPE(*sany), SOCK_STREAM, 0)) == -1) RETURN(-1); if(setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &(g_state.timeout), sizeof(g_state.timeout)) == -1 || setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &(g_state.timeout), sizeof(g_state.timeout)) == -1) sp_messagex(ctx, LOG_DEBUG, "%s: couldn't set timeouts on connection", GET_IO_NAME(io)); fcntl(fd, F_SETFD, fcntl(fd, F_GETFD, 0) | FD_CLOEXEC); if(connect(fd, &SANY_ADDR(*sany), SANY_LEN(*sany)) == -1) { close_raw(&fd); RETURN(-1); } spio_attach(ctx, io, fd, NULL); cleanup: if(ret < 0) { if(spio_valid(io)) close_raw(&(io->fd)); sp_message(ctx, LOG_ERR, "%s: couldn't connect to: %s", GET_IO_NAME(io), addrname); return -1; } ASSERT(io->fd != -1); sp_messagex(ctx, LOG_DEBUG, "%s connected to: %s", GET_IO_NAME(io), io->peername); return 0; } void spio_disconnect(spctx_t* ctx, spio_t* io) { ASSERT(ctx && io); if(spio_valid(io)) { close_raw(&(io->fd)); sp_messagex(ctx, LOG_DEBUG, "%s connection closed", GET_IO_NAME(io)); } } unsigned int spio_select(spctx_t* ctx, ...) { fd_set mask; spio_t* io; int ret = 0; int have = 0; int i = 0; va_list ap; struct timeval timeout; ASSERT(ctx); FD_ZERO(&mask); va_start(ap, ctx); while((io = va_arg(ap, spio_t*)) != NULL) { if(spio_valid(io)) { /* We can't handle more than 31 args */ if(i > (sizeof(int) * 8) - 2) break; /* Check if the buffer has something in it */ if(HAS_EXTRA(io)) ret |= (1 << i); /* Mark for select */ FD_SET(io->fd, &mask); have = 1; } i++; } va_end(ap); /* If any buffers had something present, then return */ if(ret != 0) return ret; /* No valid file descriptors */ if(!have) return ~0; for(;;) { /* Select can modify the timeout argument so we copy */ memcpy(&timeout, &(g_state.timeout), sizeof(timeout)); /* Otherwise wait on more data */ switch(select(FD_SETSIZE, &mask, NULL, NULL, &timeout)) { case 0: sp_messagex(ctx, LOG_ERR, "network operation timed out"); return ~0; case -1: if(errno == EINTR) { if(!sp_is_quit()) continue; } else sp_message(ctx, LOG_ERR, "couldn't select on sockets"); return ~0; }; break; } /* See what came in */ i = 0; va_start(ap, ctx); while((io = va_arg(ap, spio_t*)) != NULL) { if(spio_valid(io)) { /* We can't handle more than 31 args */ if(i > (sizeof(int) * 8) - 2) break; /* We have data on the descriptor, which is an action */ io->last_action = time(NULL); /* Check if the buffer has something in it */ if(FD_ISSET(io->fd, &mask)) ret |= (1 << i); } i++; } va_end(ap); return ret; } int read_raw(spctx_t* ctx, spio_t* io, int opts) { int len, x, count; char* at; char* p; /* * Just a refresher: * * _nx: Extra data read on last read. * _ln: Length of that extra data. * * _nx should never be equal to line when entering this function. * And _ln should always be less than a full buffer. */ count = 0; io->line[0] = 0; /* Remaining data in the buffer */ if(io->_nx && io->_ln > 0) { ASSERT(!io->_nx || io->_nx > io->line); ASSERT(io->_ln < SP_LINE_LENGTH); ASSERT(io->_nx + io->_ln <= io->line + SP_LINE_LENGTH); /* Check for a return in the current buffer */ if((p = (char*)memchr(io->_nx, '\n', io->_ln)) != NULL) { /* Move data to front */ x = (p - io->_nx) + 1; ASSERT(x > 0); memmove(io->line, io->_nx, x); /* Null teriminate it */ io->line[x] = 0; /* Do maintanence for next time around */ io->_ln -= x; io->_nx += x; /* A double check on the return value */ count += x; return count; } /* Otherwise move all old data to front */ memmove(io->line, io->_nx, io->_ln); count += io->_ln; /* We always leave space for a null terminator */ len = (SP_LINE_LENGTH - io->_ln) - 1; at = io->line + io->_ln; } /* No data at front just read straight in */ else { /* We always leave space for a null terminator */ len = SP_LINE_LENGTH - 1; at = io->line; } for(;;) { /* Read a block of data */ ASSERT(io->fd != -1); x = read(io->fd, at, sizeof(char) * len); if(x == -1) { if(errno == EINTR) { /* When the application is quiting */ if(sp_is_quit()) return -1; /* For any other signal we go again */ continue; } if(errno == ECONNRESET) /* Not usually a big deal so supresse the error */ sp_messagex(ctx, LOG_DEBUG, "%s: connection disconnected by peer", GET_IO_NAME(io)); else if(errno == EAGAIN) sp_messagex(ctx, LOG_WARNING, "%s: network read operation timed out", GET_IO_NAME(io)); else sp_message(ctx, LOG_ERR, "%s: couldn't read data from socket", GET_IO_NAME(io)); /* * The basic logic here is that if we've had a fatal error * reading from the socket once then we shut it down as it's * no good trying to read from again later. */ close_raw(&(io->fd)); return -1; } /* End of data */ else if(x == 0) { /* Maintenance for remaining data */ io->_nx = NULL; io->_ln = 0; return count; } /* Read data which is a descriptor action */ io->last_action = time(NULL); /* Check for a new line */ p = (char*)memchr(at, '\n', x); if(p != NULL) { p++; count += (p - at); /* Insert the null terminator */ len = x - (p - at); memmove(p + 1, p, len); *p = 0; /* Do maintenence for remaining data */ io->_nx = p + 1; io->_ln = len; return count; } /* Move the buffer pointer along */ at += x; len -= x; count += x; if(len <= 0) { /* Keep reading until we hit a new line */ if(opts & SPIO_DISCARD) { /* * K, basically the logic is that we're discarding * data and the data will be screwed up. So overwriting * some valid data in order to flush the line and * keep the buffering simple is a price we pay gladly :) */ ASSERT(128 < SP_LINE_LENGTH); at = (io->line + SP_LINE_LENGTH) - 128; len = 128; /* Go for next read */ continue; } io->_nx = NULL; io->_ln = 0; /* Null terminate */ io->line[SP_LINE_LENGTH] = 0; /* A double check on the return value */ return count; } } } int spio_read_line(spctx_t* ctx, spio_t* io, int opts) { int x, l; char* t; ASSERT(ctx && io); if(!spio_valid(io)) { sp_messagex(ctx, LOG_WARNING, "%s: tried to read from a closed connection", GET_IO_NAME(io)); return 0; } x = read_raw(ctx, io, opts); if(x > 0) { if(opts & SPIO_TRIM) { t = io->line; while(*t && isspace(*t)) t++; /* Bump the entire line down */ l = t - io->line; memmove(io->line, t, (x + 1) - l); x -= l; /* Now the end */ t = io->line + x; while(t > io->line && isspace(*(t - 1))) { *(--t) = 0; x--; } } if(!(opts & SPIO_QUIET)) log_io_data(ctx, io, io->line, 1); } return x; } int spio_write_data(spctx_t* ctx, spio_t* io, const char* data) { int len = strlen(data); ASSERT(ctx && io && data); if(!spio_valid(io)) { sp_message(ctx, LOG_ERR, "%s: connection closed. can't write data", GET_IO_NAME(io)); return -1; } log_io_data(ctx, io, data, 0); return spio_write_data_raw(ctx, io, (unsigned char*)data, len); } int spio_write_dataf(struct spctx* ctx, spio_t* io, const char* fmt, ...) { char buf[SP_LINE_LENGTH]; va_list ap; ASSERT(ctx && io && fmt); buf[0] = 0; va_start(ap, fmt); vsnprintf(buf, SP_LINE_LENGTH, fmt, ap); va_end(ap); buf[SP_LINE_LENGTH - 1] = 0; return spio_write_data(ctx, io, buf); } int spio_write_data_raw(spctx_t* ctx, spio_t* io, const unsigned char* buf, int len) { int r; ASSERT(ctx && io && buf); if(io->fd == -1) return 0; io->last_action = time(NULL); while(len > 0) { r = write(io->fd, buf, len); if(r > 0) { buf += r; len -= r; } else if(r == -1) { if(errno == EINTR) { /* When the application is quiting */ if(sp_is_quit()) return -1; /* For any other signal we go again */ continue; } /* * The basic logic here is that if we've had a fatal error * writing to the socket once then we shut it down as it's * no good trying to write to it again later. */ close_raw(&(io->fd)); if(errno == EAGAIN) sp_messagex(ctx, LOG_WARNING, "%s: network write operation timed out", GET_IO_NAME(io)); else sp_message(ctx, LOG_ERR, "%s: couldn't write data to socket", GET_IO_NAME(io)); return -1; } } return 0; } void spio_read_junk(spctx_t* ctx, spio_t* io) { char buf[16]; const char* t; int said = 0; int l; ASSERT(ctx); ASSERT(io); /* Truncate any data in buffer */ io->_ln = 0; io->_nx = 0; if(!spio_valid(io)) return; /* Make it non blocking */ fcntl(io->fd, F_SETFL, fcntl(io->fd, F_GETFL, 0) | O_NONBLOCK); for(;;) { l = read(io->fd, buf, sizeof(buf) - 1); if(l <= 0) break; io->last_action = time(NULL); buf[l] = 0; t = trim_start(buf); if(!said && *t) { sp_messagex(ctx, LOG_DEBUG, "%s: received junk data from daemon", GET_IO_NAME(io)); said = 1; } } fcntl(io->fd, F_SETFL, fcntl(io->fd, F_GETFL, 0) & ~O_NONBLOCK); } clamsmtp-1.10/common/.svn/tmp/tempfile.12.tmp0000644000175000017500000000564110634000375015724 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef __SOCK_ANY_H__ #define __SOCK_ANY_H__ #include #include #include struct sockaddr_any { union _sockaddr_any { /* The header */ struct sockaddr a; /* The different types */ struct sockaddr_un un; struct sockaddr_in in; #ifdef HAVE_INET6 struct sockaddr_in6 in6; #endif } s; size_t namelen; }; #define SANY_ADDR(any) ((any).s.a) #define SANY_LEN(any) ((any).namelen) #define SANY_TYPE(any) ((any).s.a.sa_family) int sock_any_pton(const char* addr, struct sockaddr_any* any, int opts); /* The default port to fill in when no IP/IPv6 port specified */ #define SANY_OPT_DEFPORT(p) (int)((p) & 0xFFFF) /* When only port specified default to IPANY */ #define SANY_OPT_DEFANY 0x00000000 /* When only port specified default to LOCALHOST */ #define SANY_OPT_DEFLOCAL 0x00100000 /* When only port specified default to IPv6 */ #ifdef HAVE_INET6 #define SANY_OPT_DEFINET6 0x00200000 #endif int sock_any_ntop(const struct sockaddr_any* any, char* addr, size_t addrlen, int opts); /* Don't print or compare the port */ #define SANY_OPT_NOPORT 0x01000000 int sock_any_cmp(const struct sockaddr_any* a1, const struct sockaddr_any* a2, int opts); #endif /* __SOCK_ANY_H__ */ clamsmtp-1.10/common/.svn/entries0000444000175000017500000000316711032211505013737 000000000000008 dir 1170 http://dev.ws.local/svn/services/proxsmtp/common http://dev.ws.local/svn/services 2008-05-27T12:50:55.993769Z 1166 sean svn:special svn:externals svn:needs-lock 37549a05-7cf3-0310-b41a-658052d0713c stringx.c file 2007-03-20T03:39:06.000000Z c472aeaf3c507299fec9770467812bcd 2007-05-28T19:34:01.179188Z 1105 sean has-props smtppass.h file 2008-06-30T17:01:31.000000Z 030809b82e62f98b6601753691409871 2008-05-27T12:50:55.993769Z 1166 sean has-props usuals.h file 2007-03-20T03:39:06.000000Z 11b58b4d9e41c44901abd84aa9159990 2007-05-28T19:34:01.179188Z 1105 sean has-props compat.c file 2007-03-20T03:39:06.000000Z 73bf4a82d7fb9196266eddf07f938e68 2007-05-28T19:34:01.179188Z 1105 sean has-props stringx.h file 2007-03-20T03:39:06.000000Z 48976c5e10e6206b41ed4d92bbfc1636 2007-05-28T19:34:01.179188Z 1105 sean has-props sock_any.c file 2007-03-20T03:39:06.000000Z b88ff12f99b773a23ba149387ce627a7 2007-05-28T19:34:01.179188Z 1105 sean has-props compat.h file 2007-03-20T03:39:06.000000Z 3afdc5163e12be88d491ac3e2bba92bf 2007-05-28T19:34:01.179188Z 1105 sean has-props sppriv.h file 2007-03-20T03:39:06.000000Z 8dc5decda85a5cce765e73f9fdd1e455 2007-05-28T19:34:01.179188Z 1105 sean has-props smtppass.c file 2008-06-30T17:01:31.000000Z 74d166d0689c6e8d22920c987b020bc9 2008-05-27T12:50:55.993769Z 1166 sean has-props spio.c file 2007-03-20T03:39:06.000000Z 162d601fc3deb5002b479b6dfe9b5adb 2007-05-28T19:34:01.179188Z 1105 sean has-props sock_any.h file 2007-03-20T03:39:06.000000Z 42ef3b5dd795f0ccbe36eda4c6737e34 2007-05-28T19:34:01.179188Z 1105 sean has-props clamsmtp-1.10/common/.svn/format0000444000175000017500000000000210577653531013565 000000000000008 clamsmtp-1.10/common/.svn/all-wcprops0000444000175000017500000000230611032211505014523 00000000000000K 25 svn:wc:ra_dav:version-url V 43 /svn/services/!svn/ver/1166/proxsmtp/common END stringx.c K 25 svn:wc:ra_dav:version-url V 53 /svn/services/!svn/ver/1105/proxsmtp/common/stringx.c END smtppass.h K 25 svn:wc:ra_dav:version-url V 54 /svn/services/!svn/ver/1166/proxsmtp/common/smtppass.h END usuals.h K 25 svn:wc:ra_dav:version-url V 52 /svn/services/!svn/ver/1105/proxsmtp/common/usuals.h END compat.c K 25 svn:wc:ra_dav:version-url V 52 /svn/services/!svn/ver/1105/proxsmtp/common/compat.c END stringx.h K 25 svn:wc:ra_dav:version-url V 53 /svn/services/!svn/ver/1105/proxsmtp/common/stringx.h END sock_any.c K 25 svn:wc:ra_dav:version-url V 54 /svn/services/!svn/ver/1105/proxsmtp/common/sock_any.c END compat.h K 25 svn:wc:ra_dav:version-url V 52 /svn/services/!svn/ver/1105/proxsmtp/common/compat.h END sppriv.h K 25 svn:wc:ra_dav:version-url V 52 /svn/services/!svn/ver/1105/proxsmtp/common/sppriv.h END smtppass.c K 25 svn:wc:ra_dav:version-url V 54 /svn/services/!svn/ver/1166/proxsmtp/common/smtppass.c END spio.c K 25 svn:wc:ra_dav:version-url V 50 /svn/services/!svn/ver/1105/proxsmtp/common/spio.c END sock_any.h K 25 svn:wc:ra_dav:version-url V 54 /svn/services/!svn/ver/1105/proxsmtp/common/sock_any.h END clamsmtp-1.10/common/stringx.c0000644000175000017500000001006410626144545013336 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #include #include #include #include #include #include #include "usuals.h" #include "compat.h" #include "stringx.h" /* ---------------------------------------------------------------------------------- * Parsing */ int is_first_word(const char* line, const char* word, int len) { ASSERT(line); ASSERT(word); ASSERT(len > 0); while(*line && isspace(*line)) line++; if(strncasecmp(line, word, len) != 0) return 0; line += len; return !*line || isspace(*line); } int check_first_word(const char* line, const char* word, int len, char* delims) { const char* t; int found = 0; ASSERT(line); ASSERT(word); ASSERT(len > 0); t = line; while(*t && strchr(delims, *t)) t++; if(strncasecmp(t, word, len) != 0) return 0; t += len; while(*t && strchr(delims, *t)) { found = 1; t++; } return (!*t || found) ? t - line : 0; } int is_last_word(const char* line, const char* word, int len) { const char* t; ASSERT(line); ASSERT(word); ASSERT(len > 0); t = line + strlen(line); while(t > line && isspace(*(t - 1))) --t; if(t - len < line) return 0; return strncasecmp(t - len, word, len) == 0; } int is_blank_line(const char* line) { /* Small optimization */ if(!*line) return 1; while(*line && isspace(*line)) line++; return *line == 0; } char* trim_start(const char* data) { while(*data && isspace(*data)) ++data; return (char*)data; } char* trim_end(char* data) { char* t = data + strlen(data); while(t > data && isspace(*(t - 1))) { t--; *t = 0; } return data; } char* trim_space(char* data) { data = (char*)trim_start(data); return trim_end(data); } /* String to bool helper function */ int strtob(const char* str) { if(strcasecmp(str, "0") == 0 || strcasecmp(str, "no") == 0 || strcasecmp(str, "false") == 0 || strcasecmp(str, "f") == 0 || strcasecmp(str, "off") == 0) return 0; if(strcasecmp(str, "1") == 0 || strcasecmp(str, "yes") == 0 || strcasecmp(str, "true") == 0 || strcasecmp(str, "t") == 0 || strcasecmp(str, "on") == 0) return 1; return -1; } clamsmtp-1.10/common/smtppass.h0000644000175000017500000002214311032210553013501 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef __SMTPPASS_H__ #define __SMTPPASS_H__ /* Forward declarations */ struct sockaddr_any; struct spctx; /* ----------------------------------------------------------------------------- * BUFFERED MULTIPLEXING IO * * This isn't meant to be a replacement library for all sorts of IO * only things that are currently used go here. */ /* * A generous maximum line length. It needs to be longer than * a full path on this system can be, because we pass the file * name to clamd. */ #if 2000 > MAXPATHLEN #define SP_LINE_LENGTH 2000 #else #define SP_LINE_LENGTH (MAXPATHLEN + 128) #endif typedef struct spio { int fd; /* The file descriptor wrapped */ const char* name; /* The name for logging */ time_t last_action; /* Time of last action on descriptor */ char peername[MAXPATHLEN]; /* Name of the peer on other side of socket */ char localname[MAXPATHLEN]; /* Address where we accepted the connection */ /* Internal use only */ char line[SP_LINE_LENGTH]; char* _nx; size_t _ln; } spio_t; #define spio_valid(io) ((io) && (io)->fd != -1) /* Setup the io structure (allocated elsewhere) */ void spio_init(spio_t* io, const char* name); /* Attach an open descriptor to a socket, optionally returning the peer */ void spio_attach(struct spctx* ctx, spio_t* io, int fd, struct sockaddr_any* peer); /* Connect and disconnect from sockets */ int spio_connect(struct spctx* ctx, spio_t* io, const struct sockaddr_any* sany, const char* addrname); void spio_disconnect(struct spctx* ctx, spio_t* io); #define SPIO_TRIM 0x00000001 #define SPIO_DISCARD 0x00000002 #define SPIO_QUIET 0x00000004 /* Read a line from a socket. Use options above. Line * will be found in io->line */ int spio_read_line(struct spctx* ctx, spio_t* io, int opts); /* Write data to socket (must supply line endings if needed). * Guaranteed to accept all data or fail. */ int spio_write_data(struct spctx* ctx, spio_t* io, const char* data); int spio_write_dataf(struct spctx* ctx, spio_t* io, const char* fmt, ...); int spio_write_data_raw(struct spctx* ctx, spio_t* io, const unsigned char* buf, int len); /* Empty the given socket */ void spio_read_junk(struct spctx* sp, spio_t* io); /* Pass up to 31 spio_t*, followed by NULL. Returns bitmap of ready for reading */ unsigned int spio_select(struct spctx* ctx, ...); /* ----------------------------------------------------------------------------- * SMTP PASS THROUGH FUNCTIONALITY */ /* Log lines have to be under roughly 900 chars otherwise * they get truncated by syslog. */ #define SP_LOG_LINE_LEN 768 typedef struct spctx { unsigned int id; /* Identifier for the connection */ spio_t client; /* Connection to client */ spio_t server; /* Connection to server */ FILE* cachefile; /* The file handle for the cached file */ char cachename[MAXPATHLEN]; /* The name of the file that we cache into */ char logline[SP_LOG_LINE_LEN]; /* Log line */ char* sender; /* The email of the sender */ char* recipients; /* The email of the recipients */ char* xforwardaddr; /* The IP address proxied for */ char* xforwardhelo; /* The HELO/EHLO proxied for */ int _crlf; /* Private data */ } spctx_t; /* * sp_init initializes the SMTP Pass-Through functionality * The name passed is the name of the app */ void sp_init(const char* name); /* * This starts up the smtp pass thru program. It will call * the cb_* functions as appropriate. */ int sp_run(const char* configfile, const char* pidfile, int dbg_level); /* * Mark the application as shutting down. * A signal will interupt most IO. */ void sp_quit(); /* * Check if the application has been marked to quit. * Useful for checking after interupted IO. */ int sp_is_quit(); /* * Called to cleanup SMTP Pass-Through functionality just * before the application quits. */ void sp_done(); /* * clamsmtpd used to accept command line args. In order to * process those args it needs to send the values to the * config file routines. This is how it does that. */ #ifdef SP_LEGACY_OPTIONS int sp_parse_option(const char* name, const char* option); #endif /* * The following functions are to be called from within * the spc_check_data function. */ /* * Adds a piece of info to the log line */ void sp_add_log(spctx_t* ctx, char* prefix, char* line); /* * Reads a line of DATA from client. Or less than a line if * line is longer than LINE_LENGTH. No trimming or anything * is done on the read line. This will end automatically * when . is detected (in which case 0 will * be returned). The data is returned in data. */ int sp_read_data(spctx_t* ctx, const char** data); /* * Writes a line (or piece) of data to a file buffer which is * later sent to the client using sp_done_data. Calling it with * a NULL buffer closes the cache file. Guaranteed to accept * all data given to it or fail. */ int sp_write_data(spctx_t* ctx, const char* buf, int buflen); /* * Sends all DATA from the client into the cache. The cache * file is then available (in spctx_t->cachename) for use. */ int sp_cache_data(spctx_t* ctx); /* * Sends the data in file buffer off to server. This is * completes a successful mail transfer. */ int sp_done_data(spctx_t* ctx, const char *header); /* * Fails the data, deletes any temp data, and sends given * status to client or if NULL then SMTP_DATAFAILED */ int sp_fail_data(spctx_t* ctx, const char* smtp_status); /* * Setup the environment with context info. This is useful * if you're going to fork another process. Be sure to exec * soon after to prevent the strings from going out of scope. */ void sp_setup_forked(spctx_t* ctx, int file); /* * Log a message. levels are syslog levels. Syntax is just * like printf etc.. Can specify a ctx of NULL in which case * no connection prefix is prepended. */ void sp_message(spctx_t* ctx, int level, const char* msg, ...); void sp_messagex(spctx_t* ctx, int level, const char* msg, ...); /* * Lock or unlock the main mutex around thread common * functionality. */ void sp_lock(); void sp_unlock(); /* ----------------------------------------------------------------------------- * CALLBACKS IMPLMEMENTED BY PROGRAM */ /* * The following functions create and destroy contexts for a new * thread. Perform initialization in there and return a spctx * structure for the thread to use. Return NULL failed. Be sure * to log message. */ extern spctx_t* cb_new_context(); extern void cb_del_context(spctx_t* ctx); /* * Called when the data section of an email is being transferred. * Once inside this function you can transfer files using * sp_read_data, sp_write_data. * * After scanning or figuring out the status call either * sp_done_data or sp_fail_data. Most failures should be handled * internally using sp_fail_data, unless it's an out of memory * condition, or sp_fail_data failed. */ extern int cb_check_data(spctx_t* ctx); /* * Parse options from the config file. The memory for these * options will stay around until sp_done is called. Return 0 * for unrecognized options, 1 for recognized, and quit the * program for invalid. */ extern int cb_parse_option(const char* name, const char* value); #endif /* __SMTPPASS_H__ */ clamsmtp-1.10/common/usuals.h0000644000175000017500000000443310626144604013160 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef __USUALS_H__ #define __USUALS_H__ #include #include "config.h" #include #include #include #include #include "compat.h" #ifndef NULL #define NULL 0 #endif #ifndef max #define max(a,b) (((a) > (b)) ? (a) : (b)) #endif #ifndef min #define min(a,b) (((a) < (b)) ? (a) : (b)) #endif #define countof(x) (sizeof(x) / sizeof(x[0])) #ifdef _DEBUG #include "assert.h" #define ASSERT(x) assert(x) #else #define ASSERT(x) #endif #define KL(s) ((sizeof(s) - 1) / sizeof(char)) #define RETURN(x) { ret = (x); goto cleanup; } #endif /* __USUALS_H__ */ clamsmtp-1.10/common/compat.c0000644000175000017500000002743210626144677013140 00000000000000/* * Copyright (c) 2004-2005, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * * * PORTIONS FROM OPENBSD: ------------------------------------------------- * * Copyright (c) 1998 Todd C. Miller * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "usuals.h" #include "compat.h" #include #include #ifndef HAVE_REALLOCF void* reallocf(void* ptr, size_t size) { void* ret = realloc(ptr, size); if(!ret && size) free(ptr); return ret; } #endif #ifndef HAVE_STRLWR char* strlwr(char* s) { char* t = s; while(*t) { *t = tolower(*t); t++; } return s; } #endif #ifndef HAVE_STRUPR char* strupr(char* s) { char* t = s; while(*t) { *t = toupper(*t); t++; } return s; } #endif #ifndef HAVE_STRLCPY size_t strlcpy(char* dst, const char* src, size_t siz) { char* d = dst; const char* s = src; size_t n = siz; /* Copy as many bytes as will fit */ if(n != 0 && --n != 0) { do { if((*d++ = *s++) == 0) break; } while(--n != 0); } /* Not enough room in dst, add NUL and traverse rest of src */ if(n == 0) { if(siz != 0) *d = '\0'; /* NUL-terminate dst */ while (*s++) ; } return s - src - 1; /* count does not include NUL */ } #endif #ifndef HAVE_STRLCAT size_t strlcat(char* dst, const char* src, size_t siz) { char* d = dst; const char* s = src; size_t n = siz; size_t dlen; /* Find the end of dst and adjust bytes left but don't go past end */ while(n-- != 0 && *d != '\0') d++; dlen = d - dst; n = siz - dlen; if(n == 0) return dlen + strlen(s); while(*s != '\0') { if(n != 1) { *d++ = *s; n--; } s++; } *d = '\0'; return dlen + (s - src); /* count does not include NUL */ } #endif #ifndef HAVE_STRCASESTR const char* strcasestr(const char *s, const char *find) { char c, sc; size_t len; if((c = *find++) != 0) { c = tolower((unsigned char)c); len = strlen(find); do { do { if((sc = *s++) == 0) return (NULL); } while((char)tolower((unsigned char)sc) != c); } while (strncasecmp(s, find, len) != 0); s--; } return((const char*)s); } #endif #ifndef HAVE_SETENV #include int setenv(const char* name, const char* value, int overwrite) { char* t; int r; if(getenv(name) && !overwrite) return 0; t = (char*)malloc((strlen(name) + strlen(value) + 2) * sizeof(char)); if(!t) return -1; sprintf(t, "%s=%s", name, value); r = putenv(t); if(r != 0) free(t); return r; } #endif #ifndef HAVE_DAEMON #include #include #include #include #include int daemon(int nochdir, int noclose) { struct sigaction osa, sa; int oerrno, fd, osa_ok; pid_t newgrp; /* A SIGHUP may be thrown when the parent exits below. */ sigemptyset(&sa.sa_mask); sa.sa_handler = SIG_IGN; sa.sa_flags = 0; osa_ok = sigaction(SIGHUP, &sa, &osa); switch(fork()) { case -1: return -1; case 0: break; default: _exit(0); } newgrp = setsid(); oerrno = errno; if(osa_ok != -1) sigaction(SIGHUP, &osa, NULL); if(newgrp == -1) { errno = oerrno; return -1; } if(!nochdir) chdir("/"); if(!noclose && (fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) { dup2(fd, STDIN_FILENO); dup2(fd, STDOUT_FILENO); dup2(fd, STDERR_FILENO); if(fd > 2) close(fd); } return 0; } #endif #ifndef HAVE_GETLINE ssize_t getline(char** lineptr, size_t* n, FILE* stream) { return getdelim(lineptr, n, '\n', stream); } #endif #ifndef HAVE_GETDELIM ssize_t getdelim(char** lineptr, size_t* n, int delim, FILE* stream) { size_t written = 0; int allocated, ch; ssize_t ret = -1; char* p; if(!n || !lineptr || !stream) { errno = EINVAL; return -1; } /* Track whether we allocated this or not */ allocated = !(*lineptr); #ifdef HAVE_FLOCKFILE /* Affects performance on Solaris. */ flockfile(stream); #endif for(;;) { if(!*lineptr) *n = 0; /* Reallocate if we need more space */ if(written == *n - 1) { *n = *n ? *n * 2 : 256; if(!(p = (char*)realloc(*lineptr, *n))) { if(allocated && *lineptr) free(*lineptr); errno = ENOMEM; ret = -1; goto finally; } *lineptr = p; } while(written < *n - 1) { #ifdef HAVE_FLOCKFILE ch = getc_unlocked(stream); #else ch = fgetc(stream); #endif if(ferror(stream)) { if(allocated && *lineptr) free(*lineptr); ret = -1; goto finally; } if(ch != EOF) (*lineptr)[written++] = ch; /* Done, null terminate, return */ if(ch == EOF || ch == delim) { (*lineptr)[written] = 0; ret = written ? written : -1; goto finally; } } } finally: #ifdef HAVE_FLOCKFILE funlockfile(stream); #endif return ret; } #endif #ifndef HAVE_ERR_H #include #include #include #include extern char** __argv; static const char* calc_prog_name() { static char prognamebuf[256]; static int prepared = 0; if(!prepared) { const char* beg = strrchr(__argv[0], '\\'); const char* temp = strrchr(__argv[0], '/'); beg = (beg > temp) ? beg : temp; beg = (beg) ? beg + 1 : __argv[0]; temp = strrchr(__argv[0], '.'); temp = (temp > beg) ? temp : __argv[0] + strlen(__argv[0]); if((temp - beg) > 255) temp = beg + 255; strncpy(prognamebuf, beg, temp - beg); prognamebuf[temp - beg] = 0; prepared = 1; } return prognamebuf; } static FILE* err_file; /* file to use for error output */ /* * This is declared to take a `void *' so that the caller is not required * to include first. However, it is really a `FILE *', and the * manual page documents it as such. */ void err_set_file(void *fp) { if (fp) err_file = fp; else err_file = stderr; } void err(int eval, const char *fmt, ...) { va_list ap; va_start(ap, fmt); verrc(eval, errno, fmt, ap); va_end(ap); } void verr(int eval, const char *fmt, va_list ap) { verrc(eval, errno, fmt, ap); } void errc(int eval, int code, const char *fmt, ...) { va_list ap; va_start(ap, fmt); verrc(eval, code, fmt, ap); va_end(ap); } void verrc(int eval, int code, const char *fmt, va_list ap) { if (err_file == 0) err_set_file((FILE *)0); fprintf(err_file, "%s: ", calc_prog_name()); if (fmt != NULL) { vfprintf(err_file, fmt, ap); fprintf(err_file, ": "); } fprintf(err_file, "%s\n", strerror(code)); exit(eval); } void errx(int eval, const char *fmt, ...) { va_list ap; va_start(ap, fmt); verrx(eval, fmt, ap); va_end(ap); } void verrx(int eval, const char *fmt, va_list ap) { if (err_file == 0) err_set_file((FILE *)0); fprintf(err_file, "%s: ", calc_prog_name()); if (fmt != NULL) vfprintf(err_file, fmt, ap); fprintf(err_file, "\n"); exit(eval); } void warn(const char *fmt, ...) { va_list ap; va_start(ap, fmt); vwarnc(errno, fmt, ap); va_end(ap); } void vwarn(const char *fmt, va_list ap) { vwarnc(errno, fmt, ap); } void warnc(int code, const char *fmt, ...) { va_list ap; va_start(ap, fmt); vwarnc(code, fmt, ap); va_end(ap); } void vwarnc(int code, const char *fmt, va_list ap) { if (err_file == 0) err_set_file((FILE *)0); fprintf(err_file, "%s: ", calc_prog_name()); if (fmt != NULL) { vfprintf(err_file, fmt, ap); fprintf(err_file, ": "); } fprintf(err_file, "%s\n", strerror(code)); } void warnx(const char *fmt, ...) { va_list ap; va_start(ap, fmt); vwarnx(fmt, ap); va_end(ap); } void vwarnx(const char *fmt, va_list ap) { if(err_file == 0) err_set_file((FILE*)0); fprintf(err_file, "%s: ", calc_prog_name()); if(fmt != NULL) vfprintf(err_file, fmt, ap); fprintf(err_file, "\n"); } #endif clamsmtp-1.10/common/stringx.h0000644000175000017500000000412110626144715013337 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef __STRINGX_H__ #define __STRINGX_H__ int check_first_word(const char* line, const char* word, int len, char* delims); int is_first_word(const char* line, const char* word, int len); int is_last_word(const char* line, const char* word, int len); int is_blank_line(const char* line); char* trim_start(const char* data); char* trim_end(char* data); char* trim_space(char* data); int strtob(const char* str); #endif /* __STRINGX_H__ */ clamsmtp-1.10/common/sock_any.c0000644000175000017500000002147010626144727013453 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #include #include #include #include #include #include #include #include #include "sock_any.h" #include #define LOCALHOST_ADDR 0x7F000001 int sock_any_pton(const char* addr, struct sockaddr_any* any, int opts) { size_t l; char buf[256]; char* t; char* t2; int defport = (opts & 0xFFFF); memset(any, 0, sizeof(*any)); /* Just a port? */ do { #define PORT_CHARS "0123456789" #define PORT_MIN 1 #define PORT_MAX 5 int port = 0; l = strspn(addr, PORT_CHARS); if(l < PORT_MIN || l > PORT_MAX || addr[l] != 0) break; port = strtol(addr, &t2, 10); if(*t2 || port <= 0 || port >= 65536) break; any->s.in.sin_port = htons(port); /* Fill in the type based on defaults */ #ifdef HAVE_INET6 if(opts & SANY_OPT_DEFINET6) any->s.in.sin_family = AF_INET6; else #endif any->s.in.sin_family = AF_INET; /* Fill in the address based on defaults */ if(opts & SANY_OPT_DEFLOCAL) { #ifdef HAVE_INET6 if(opts & SANY_OPT_DEFINET6) memcpy(&(any->s.in.sin6_addr), &in6addr_loopback, sizeof(struct in6_addr)); else #endif any->s.in.sin_addr.s_addr = htonl(INADDR_LOOPBACK); } /* * Note the 'any' option is the default since we zero out * the entire structure above. */ any->namelen = sizeof(any->s.in); return AF_INET; } while(0); /* Look and see if we can parse an ipv4 address */ do { #define IPV4_PORT_CHARS #define IPV4_CHARS "0123456789." #define IPV4_MIN 3 #define IPV4_MAX 21 int port = 0; t = NULL; l = strlen(addr); if(l < IPV4_MIN || l > IPV4_MAX) break; strcpy(buf, addr); /* Find the last set that contains just numbers */ l = strspn(buf, IPV4_CHARS); if(l < IPV4_MIN) break; /* Either end of string or port */ if(buf[l] != 0 && buf[l] != ':') break; /* Get the port out */ if(buf[l] != 0) { t = buf + l + 1; buf[l] = 0; } if(t) { port = strtol(t, &t2, 10); if(*t2 || port <= 0 || port >= 65536) break; } any->s.in.sin_family = AF_INET; any->s.in.sin_port = htons((unsigned short)(port <= 0 ? defport : port)); if(inet_pton(AF_INET, buf, &(any->s.in.sin_addr)) <= 0) break; any->namelen = sizeof(any->s.in); return AF_INET; } while(0); #ifdef HAVE_INET6 do { #define IPV6_CHARS "0123456789:" #define IPV6_MIN 3 #define IPV6_MAX 51 int port = -1; t = NULL; l = strlen(addr); if(l < IPV6_MIN || l > IPV6_MAX) break; /* If it starts with a '[' then we can get port */ if(buf[0] == '[') { port = 0; addr++; } strcpy(buf, addr); /* Find the last set that contains just numbers */ l = strspn(buf, IPV6_CHARS); if(l < IPV6_MIN) break; /* Either end of string or port */ if(buf[l] != 0) { /* If had bracket, then needs to end with a bracket */ if(port != 0 || buf[l] != ']') break; /* Get the port out */ t = buf + l + 1; if(*t = ':') t++; } if(t) { port = strtol(t, &t, 10); if(*t || port <= 0 || port >= 65536) break; } any->s.in6.sin6_family = AF_INET6; any->s.in6.sin6_port = htons((unsigned short)port <= 0 : defport : port); if(inet_pton(AF_INET6, buf, &(any->s.in6.sin6_addr)) >= 0) break; any->namelen = sizeof(any->s.in6); return AF_INET6; } while(0); #endif /* A unix socket path */ do { /* No colon and must have a path component */ if(strchr(addr, ':') || !strchr(addr, '/')) break; l = strlen(addr); if(l >= sizeof(any->s.un.sun_path)) break; any->s.un.sun_family = AF_UNIX; strcpy(any->s.un.sun_path, addr); any->namelen = sizeof(any->s.un) - (sizeof(any->s.un.sun_path) - l); return AF_UNIX; } while(0); /* A DNS name and a port? */ do { struct addrinfo* res; int port = 0; t = NULL; l = strlen(addr); if(l >= 255 || !isalpha(addr[0])) break; /* Some basic illegal character checks */ if(strcspn(addr, " /\\") != l) break; strcpy(buf, addr); /* Find the last set that contains just numbers */ t = strchr(buf, ':'); if(t) { *t = 0; t++; } if(t) { port = strtol(t, &t2, 10); if(*t2 || port <= 0 || port >= 65536) break; } /* Try and resolve the domain name */ if(getaddrinfo(buf, NULL, NULL, &res) != 0 || !res) break; memcpy(&(any->s.a), res->ai_addr, sizeof(struct sockaddr)); any->namelen = res->ai_addrlen; freeaddrinfo(res); port = htons((unsigned short)(port <= 0 ? defport : port)); switch(any->s.a.sa_family) { case PF_INET: any->s.in.sin_port = port; break; #ifdef HAVE_INET6 case PF_INET6: any->s.in6.sin6_port = port; break; #endif }; return any->s.a.sa_family; } while(0); return -1; } int sock_any_ntop(const struct sockaddr_any* any, char* addr, size_t addrlen, int opts) { int len = 0; int port = 0; switch(any->s.a.sa_family) { case AF_UNIX: len = strlen(any->s.un.sun_path); if(addrlen < len + 1) { errno = ENOSPC; return -1; } strcpy(addr, any->s.un.sun_path); break; case AF_INET: if(inet_ntop(any->s.a.sa_family, &(any->s.in.sin_addr), addr, addrlen) == NULL) return -1; port = ntohs(any->s.in.sin_port); break; #ifdef HAVE_INET6 case AF_INET6: if(inet_ntop(any->s.a.sa_family, &(any->s.in6.sin6_addr), addr, addrlen) == NULL) return -1; port = ntohs(any->s.in6.sin6_port); break; #endif default: errno = EAFNOSUPPORT; return -1; } if(!(opts & SANY_OPT_NOPORT) && port != 0) { strncat(addr, ":", addrlen); addr[addrlen - 1] = 0; len = strlen(addr); addr += len; addrlen -= len; snprintf(addr, addrlen, "%d", port); } return 0; } int sock_any_cmp(const struct sockaddr_any* a1, const struct sockaddr_any* a2, int opts) { if(a1->s.a.sa_family != a2->s.a.sa_family) return -1; switch(a1->s.a.sa_family) { case AF_UNIX: return strcmp(a1->s.un.sun_path, a2->s.un.sun_path); case AF_INET: if(memcmp(&(a1->s.in.sin_addr), &(a2->s.in.sin_addr), sizeof(a2->s.in.sin_addr)) != 0) return -1; if(!(opts && SANY_OPT_NOPORT) && a1->s.in.sin_port != a2->s.in.sin_port) return -1; return 0; #ifdef HAVE_INET6 case AF_INET6: if(memcmp(&(a1->s.in6.sin6_addr), &(a2->s.in6.sin6_addr), sizeof(a2->s.in6.sin6_addr)) != 0) return -1; if(!(opts && SANY_OPT_NOPORT) && a1->s.in6.sin6_port != a2->s.in6.sin6_port) return -1; return 0; #endif default: errno = EAFNOSUPPORT; return -1; } } clamsmtp-1.10/common/compat.h0000644000175000017500000000736610626144741013141 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef _COMPAT_H_ #define _COMPAT_H_ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #ifndef HAVE_STDARG_H #error ERROR: Must have a working stdarg.h header #else #include #endif #ifdef WITH_DMALLOC #include "dmalloc.h" #endif #ifndef HAVE_REALLOCF void* reallocf(void* p, size_t sz); #endif #include #if HAVE_ERR_MUTEX == 1 # define MUTEX_TYPE PTHREAD_MUTEX_ERRORCHECK_NP #else # if HAVE_ERR_MUTEX == 2 # define MUTEX_TYPE PTHREAD_MUTEX_ERRORCHECK # else # undef MUTEX_TYPE # endif #endif #ifndef HAVE_STRLWR char* strlwr(char* s); #endif #ifndef HAVE_STRUPR char* strupr(char* s); #endif #ifndef HAVE_STRLCAT size_t strlcat(char *dst, const char *src, size_t size); #endif #ifndef HAVE_STRLCPY size_t strlcpy(char *dst, const char *src, size_t size); #endif #ifndef HAVE_STRCASESTR const char* strcasestr(const char *s, const char *find); #endif #ifndef HAVE_SETENV int setenv(const char* name, const char* value, int overwrite); #endif #ifndef HAVE_DAEMON int daemon(int nochdir, int noclose); #endif #ifndef HAVE_GETLINE ssize_t getline(char** lineptr, size_t* n, FILE* stream); #endif #ifndef HAVE_GETDELIM ssize_t getdelim(char** lineptr, size_t* n, int delim, FILE* stream); #endif #ifdef HAVE_ERR_H #include #else #include void err_set_file(void *fp); void err_set_exit(void (*ef)(int)); void err(int eval, const char *fmt, ...); void verr(int eval, const char *fmt, va_list ap); void errc(int eval, int code, const char *fmt, ...); void verrc(int eval, int code, const char *fmt, va_list ap); void errx(int eval, const char *fmt, ...); void verrx(int eval, const char *fmt, va_list ap); void warn(const char *fmt, ...); void vwarn(const char *fmt, va_list ap); void warnc(int code, const char *fmt, ...); void vwarnc(int code, const char *fmt, va_list ap); void warnx(const char *fmt, ...); void vwarnx(const char *fmt, va_list ap); #endif #ifdef HAVE_PATHS_H #include #endif #ifndef _PATH_DEVNULL #define _PATH_DEVNULL "/dev/null" #endif #ifndef _PATH_TMP #define _PATH_TMP "/tmp" #endif #endif /* _COMPAT_H_ */ clamsmtp-1.10/common/sppriv.h0000644000175000017500000000605410626145002013161 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef __SPPRIV_H__ #define __SPPRIV_H__ #include "smtppass.h" typedef struct spstate { /* Settings ------------------------------- */ int debug_level; /* The level to print stuff to console */ int max_threads; /* Maximum number of threads to process at once */ struct timeval timeout; /* Timeout for communication */ int keepalives; /* Send server keep alives at this interval */ int transparent; /* Transparent proxying */ int xclient; /* Send XFORWARD info */ const char* directory; /* The temp directory */ const char* user; /* User to run as */ const char* pidfile; /* The pid file for daemon */ const char* header; /* A header to include in the email */ struct sockaddr_any outaddr; /* The outgoing address */ const char* outname; struct sockaddr_any listenaddr; /* Address to listen on */ const char* listenname; /* State --------------------------------- */ const char* name; /* The name of the program */ int quit; /* Quit the process */ int daemonized; /* Whether process is daemonized or not */ /* Internal Use ------------------------- */ char* _p; } spstate_t; extern spstate_t g_state; #endif /* __SPPRIV_H__ */ clamsmtp-1.10/common/smtppass.c0000644000175000017500000016722211032210553013504 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stefan Walter * Andreas Steinmetz * Rubio Vaughan * Olivier Beyssac */ #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "usuals.h" #ifdef LINUX_TRANSPARENT_PROXY #include #endif #include "compat.h" #include "sock_any.h" #include "stringx.h" #include "sppriv.h" /* ----------------------------------------------------------------------- * STRUCTURES */ typedef struct spthread { pthread_t tid; /* Written to by the main thread */ int fd; /* The file descriptor or -1 */ } spthread_t; /* ----------------------------------------------------------------------- * DATA */ #define CRLF "\r\n" #define SMTP_TOOLONG "500 Line too long" CRLF #define SMTP_STARTBUSY "421 Server busy, too many connections" CRLF #define SMTP_STARTFAILED "421 Local Error, cannot start thread" CRLF #define SMTP_DATAINTERMED "354 Start mail input; end with ." CRLF #define SMTP_FAILED "451 Local Error" CRLF #define SMTP_NOTSUPP "502 Command not implemented" CRLF #define SMTP_NOTAUTH "554 Insufficient authorization" CRLF #define SMTP_OK "250 Ok" CRLF #define SMTP_REJPREFIX "550 Content Rejected; " #define SMTP_DATA "DATA" CRLF #define SMTP_NOOP "NOOP" CRLF #define SMTP_RSET "RSET" CRLF #define SMTP_XCLIENT "XCLIENT ADDR=%s" CRLF #define SMTP_BANNER "220 smtp.passthru" CRLF #define SMTP_HELO_RSP "250 smtp.passthru" CRLF #define SMTP_EHLO_RSP "250-smtp.passthru" CRLF #define SMTP_FEAT_RSP "250 XFILTERED" CRLF #define SMTP_DELIMS "\r\n\t :" #define SMTP_MULTI_DELIMS " -" #define ESMTP_PIPELINE "PIPELINING" #define ESMTP_TLS "STARTTLS" #define ESMTP_CHUNK "CHUNKING" #define ESMTP_BINARY "BINARYMIME" #define ESMTP_CHECK "CHECKPOINT" #define ESMTP_XCLIENT "XCLIENT" #define ESMTP_XEXCH50 "XEXCH50" #define HELO_CMD "HELO" #define EHLO_CMD "EHLO" #define FROM_CMD "MAIL FROM" #define TO_CMD "RCPT TO" #define DATA_CMD "DATA" #define RSET_CMD "RSET" #define STARTTLS_CMD "STARTTLS" #define BDAT_CMD "BDAT" #define XCLIENT_CMD "XCLIENT" #define XFORWARD_CMD "XFORWARD" #define DATA_END_SIG "." CRLF #define DATA_RSP "354" #define OK_RSP "250" #define START_RSP "220" #define RCVD_HEADER "Received:" /* The set of delimiters that can be present between config and value */ #define CFG_DELIMS ": \t" /* Maximum length of the header argument */ #define MAX_HEADER_LENGTH 1024 /* * asctime_r manpage: "stores the string in a user-supplied buffer of * length at least 26". We'll need some more bytes to put timezone * information behind */ #define MAX_DATE_LENGTH 64 #define LINE_TOO_LONG(l) ((l) >= (SP_LINE_LENGTH - 2)) /* ----------------------------------------------------------------------- * CONFIGURATION OPTIONS * * - Be sure that your configuration option needs to go into this * file. More likely it'll go into clamsmtpd.c * - When adding configuration options follow the instructions in * clamsmtpd.c, except add option to spstate_t (sppriv.h) and parse in * sp_parse_option (below) */ #define CFG_MAXTHREADS "MaxConnections" #define CFG_TIMEOUT "TimeOut" #define CFG_OUTADDR "OutAddress" #define CFG_LISTENADDR "Listen" #define CFG_TRANSPARENT "TransparentProxy" #define CFG_DIRECTORY "TempDirectory" #define CFG_KEEPALIVES "KeepAlives" #define CFG_USER "User" #define CFG_PIDFILE "PidFile" #define CFG_XCLIENT "XClient" /* ----------------------------------------------------------------------- * DEFAULT SETTINGS */ #define DEFAULT_SOCKET "10025" #define DEFAULT_PORT 10025 #define DEFAULT_MAXTHREADS 64 #define DEFAULT_TIMEOUT 180 #define DEFAULT_KEEPALIVES 0 /* ----------------------------------------------------------------------- * GLOBALS */ spstate_t g_state; /* The state and configuration of the daemon */ unsigned int g_unique_id = 0x00100000; /* For connection ids */ pthread_mutex_t g_mutex; /* The main mutex */ pthread_mutexattr_t g_mtxattr; /* ----------------------------------------------------------------------- * FORWARD DECLARATIONS */ static void on_quit(int signal); static void drop_privileges(); static void pid_file(int write); static void connection_loop(int sock); static void* thread_main(void* arg); static int smtp_passthru(spctx_t* ctx); static int make_connections(spctx_t* ctx, int client); static int read_server_response(spctx_t* ctx); static int parse_config_file(const char* configfile); static char* parse_address(char* line); static char* parse_xforward(char* line, const char* part); static const char* get_successful_rsp(const char* line, int* cont); static void do_server_noop(spctx_t* ctx); /* Used externally in some cases */ int sp_parse_option(const char* name, const char* option); /* ---------------------------------------------------------------------------------- * BASIC RUN FUNCTIONALITY */ void sp_init(const char* name) { int r; ASSERT(name); memset(&g_state, 0, sizeof(g_state)); sp_message(NULL, LOG_DEBUG, "%s (%s)", name, VERSION); /* Setup the defaults */ g_state.debug_level = -1; g_state.max_threads = DEFAULT_MAXTHREADS; g_state.timeout.tv_sec = DEFAULT_TIMEOUT; g_state.keepalives = DEFAULT_KEEPALIVES; g_state.directory = _PATH_TMP; g_state.name = name; /* We need the default to parse into a useable form, so we do this: */ r = sp_parse_option(CFG_LISTENADDR, DEFAULT_SOCKET); ASSERT(r == 1); /* Create the main mutex and condition variable */ if(pthread_mutexattr_init(&g_mtxattr) != 0 || #ifdef HAVE_ERR_MUTEX pthread_mutexattr_settype(&g_mtxattr, MUTEX_TYPE) || #endif pthread_mutex_init(&g_mutex, &g_mtxattr) != 0) errx(1, "threading problem. can't create mutex or condition var"); } int sp_run(const char* configfile, const char* pidfile, int dbg_level) { int sock; int true = 1; ASSERT(configfile); ASSERT(g_state.name); if(!(dbg_level == -1 || dbg_level <= LOG_DEBUG)) errx(2, "invalid debug log level (must be between 1 and 4)"); g_state.debug_level = dbg_level; g_state.pidfile = pidfile; /* Now parse the configuration file */ if(parse_config_file(configfile) == -1) { /* * We used to do a check here before whether it was the default * configuration file or not, but we can't do that any longer * as it comes from the app. Usually lack of a configuration * file will cause the following checks to fail */ warnx("configuration file not found: %s", configfile); } /* This option has no default, but is required ... */ if(g_state.outname == NULL && !g_state.transparent) errx(2, "no " CFG_OUTADDR " specified."); /* ... unless we're in transparent proxy mode */ else if(g_state.outname != NULL && g_state.transparent) warnx("the " CFG_OUTADDR " option will be ignored when " CFG_TRANSPARENT " is enabled"); sp_messagex(NULL, LOG_DEBUG, "starting up (%s)...", VERSION); /* Drop privileges before daemonizing */ drop_privileges(); /* When set to this we daemonize */ if(g_state.debug_level == -1) { /* Fork a daemon nicely here */ if(daemon(0, 0) == -1) { sp_message(NULL, LOG_ERR, "couldn't run as daemon"); exit(1); } sp_messagex(NULL, LOG_DEBUG, "running as a daemon"); g_state.daemonized = 1; /* Open the system log */ openlog(g_state.name, 0, LOG_MAIL); } /* Handle some signals */ signal(SIGPIPE, SIG_IGN); signal(SIGHUP, SIG_IGN); signal(SIGINT, on_quit); signal(SIGTERM, on_quit); siginterrupt(SIGINT, 1); siginterrupt(SIGTERM, 1); /* Create the socket */ sock = socket(SANY_TYPE(g_state.listenaddr), SOCK_STREAM, 0); if(sock < 0) { sp_message(NULL, LOG_CRIT, "couldn't open socket"); exit(1); } fcntl(sock, F_SETFD, fcntl(sock, F_GETFD, 0) | FD_CLOEXEC); setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void *)&true, sizeof(true)); /* Unlink the socket file if it exists */ if(SANY_TYPE(g_state.listenaddr) == AF_UNIX) unlink(g_state.listenname); if(bind(sock, &SANY_ADDR(g_state.listenaddr), SANY_LEN(g_state.listenaddr)) != 0) { sp_message(NULL, LOG_CRIT, "couldn't bind to address: %s", g_state.listenname); exit(1); } sp_messagex(NULL, LOG_DEBUG, "created socket: %s", g_state.listenname); /* Let 5 connections queue up */ if(listen(sock, 5) != 0) { sp_message(NULL, LOG_CRIT, "couldn't listen on socket"); exit(1); } pid_file(1); sp_messagex(NULL, LOG_DEBUG, "accepting connections"); connection_loop(sock); pid_file(0); /* Our listen socket */ close(sock); sp_messagex(NULL, LOG_DEBUG, "stopped processing"); return 0; } void sp_quit() { /* The handler sets the flag and this also interrupts io */ kill(getpid(), SIGTERM); } int sp_is_quit() { return g_state.quit ? 1 : 0; } void sp_done() { /* Close the mutex */ pthread_mutex_destroy(&g_mutex); pthread_mutexattr_destroy(&g_mtxattr); if(g_state._p) free(g_state._p); memset(&g_state, 0, sizeof(g_state)); } static void on_quit(int signal) { g_state.quit = 1; } static void drop_privileges() { char* t; struct passwd* pw; uid_t uid; if(g_state.user) { if(geteuid() != 0) { sp_messagex(NULL, LOG_WARNING, "must be started as root to switch to user: %s", g_state.user); return; } uid = strtol(g_state.user, &t, 10); if(!t[0]) /* successful parse */ pw = getpwuid(uid); else /* must be a name */ pw = getpwnam(g_state.user); if(pw == NULL) errx(1, "couldn't look up user: %s", g_state.user); if(setgid(pw->pw_gid) == -1 || setuid(pw->pw_uid) == -1) err(1, "unable to switch to user: %s (uid %d, gid %d)", g_state.user, pw->pw_uid, pw->pw_gid); /* A paranoia check */ if(setreuid(-1, 0) == 0) err(1, "unable to completely drop privileges"); sp_messagex(NULL, LOG_DEBUG, "switched to user %s (uid %d, gid %d)", g_state.user, pw->pw_uid, pw->pw_gid); } if(geteuid() == 0) sp_messagex(NULL, LOG_WARNING, "running as root is NOT recommended"); } static void pid_file(int write) { if(!g_state.pidfile) return; if(write) { FILE* f = fopen(g_state.pidfile, "w"); if(f == NULL) { sp_message(NULL, LOG_ERR, "couldn't open pid file: %s", g_state.pidfile); } else { fprintf(f, "%d\n", (int)getpid()); if(ferror(f)) sp_message(NULL, LOG_ERR, "couldn't write to pid file: %s", g_state.pidfile); if(fclose(f) == EOF) sp_message(NULL, LOG_ERR, "couldn't write to pid file: %s", g_state.pidfile); } sp_messagex(NULL, LOG_DEBUG, "wrote pid file: %s", g_state.pidfile); } else { unlink(g_state.pidfile); sp_messagex(NULL, LOG_DEBUG, "removed pid file: %s", g_state.pidfile); } } static void connection_loop(int sock) { spthread_t* threads = NULL; int fd, i, x, r; /* Create the thread buffers */ threads = (spthread_t*)calloc(g_state.max_threads, sizeof(spthread_t)); if(!threads) { sp_messagex(NULL, LOG_CRIT, "out of memory"); return; } /* Now loop and accept the connections */ while(!sp_is_quit()) { fd = accept(sock, NULL, NULL); if(fd == -1) { switch(errno) { case EINTR: case EAGAIN: break; case ECONNABORTED: sp_message(NULL, LOG_ERR, "couldn't accept a connection"); break; default: sp_message(NULL, LOG_ERR, "couldn't accept a connection"); break; }; if(sp_is_quit()) break; continue; } /* Set timeouts on client */ if(setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &(g_state.timeout), sizeof(g_state.timeout)) < 0 || setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &(g_state.timeout), sizeof(g_state.timeout)) < 0) sp_message(NULL, LOG_DEBUG, "couldn't set timeouts on incoming connection"); fcntl(fd, F_SETFD, fcntl(fd, F_GETFD, 0) | FD_CLOEXEC); /* Look for thread and also clean up others */ for(i = 0; i < g_state.max_threads; i++) { /* Find a thread to run or clean up old threads */ if(threads[i].tid != 0) { sp_lock(); x = threads[i].fd; sp_unlock(); if(x == -1) { sp_messagex(NULL, LOG_DEBUG, "cleaning up completed thread"); pthread_join(threads[i].tid, NULL); threads[i].tid = 0; } #ifdef _DEBUG else { /* For debugging connection problems: */ sp_messagex(NULL, LOG_DEBUG, "active connection thread: %x", (int)threads[i].tid); } #endif } /* Start a new thread if neccessary */ if(fd != -1 && threads[i].tid == 0) { threads[i].fd = fd; r = pthread_create(&(threads[i].tid), NULL, thread_main, (void*)(threads + i)); if(r != 0) { errno = r; sp_message(NULL, LOG_ERR, "couldn't create thread"); write(fd, SMTP_STARTFAILED, KL(SMTP_STARTFAILED)); shutdown(fd, SHUT_RDWR); close(fd); fd = -1; break; } sp_messagex(NULL, LOG_DEBUG, "created thread for connection"); fd = -1; break; } } /* Check to make sure we have a thread */ if(fd != -1) { sp_messagex(NULL, LOG_ERR, "too many connections open (max %d). sent busy response", g_state.max_threads); write(fd, SMTP_STARTBUSY, KL(SMTP_STARTBUSY)); shutdown(fd, SHUT_RDWR); close(fd); fd = -1; } } sp_messagex(NULL, LOG_DEBUG, "waiting for threads to quit"); /* Quit all threads here */ for(i = 0; i < g_state.max_threads; i++) { /* Clean up quit threads */ if(threads[i].tid != 0) { if(threads[i].fd != -1) { sp_lock(); fd = threads[i].fd; threads[i].fd = -1; sp_unlock(); shutdown(fd, SHUT_RDWR); close(fd); } sp_messagex(NULL, LOG_DEBUG, "cleaning up completed thread"); pthread_join(threads[i].tid, NULL); threads[i].tid = 0; } } free(threads); } static spctx_t* init_thread(int fd) { spctx_t* ctx; ctx = cb_new_context(); if(ctx) { memset(ctx, 0, sizeof(*ctx)); spio_init(&(ctx->server), "SERVER"); spio_init(&(ctx->client), "CLIENT"); sp_lock(); /* Assign a unique id to the connection */ ctx->id = g_unique_id++; /* We don't care about wraps, but we don't want zero */ if(g_unique_id == 0) g_unique_id++; sp_unlock(); sp_messagex(ctx, LOG_DEBUG, "processing %d on thread %x", fd, (int)pthread_self()); /* Connect to the outgoing server ... */ if(make_connections(ctx, fd) == -1) { cb_del_context(ctx); ctx = NULL; } } return ctx; } static void cleanup_context(spctx_t* ctx) { ASSERT(ctx); if(ctx->cachefile) { fclose(ctx->cachefile); ctx->cachefile = NULL; } if(ctx->cachename[0]) { unlink(ctx->cachename); ctx->cachename[0] = 0; } if(ctx->recipients) { free(ctx->recipients); ctx->recipients = NULL; } if(ctx->sender) { free(ctx->sender); ctx->sender = NULL; } if(ctx->xforwardaddr) { free(ctx->xforwardaddr); ctx->xforwardaddr = NULL; } if(ctx->xforwardhelo) { free(ctx->xforwardhelo); ctx->xforwardhelo = NULL; } ctx->logline[0] = 0; } static void done_thread(spctx_t* ctx) { ASSERT(ctx); spio_disconnect(ctx, &(ctx->client)); spio_disconnect(ctx, &(ctx->server)); /* Clean up file stuff */ cleanup_context(ctx); cb_del_context(ctx); } static void* thread_main(void* arg) { spthread_t* thread = (spthread_t*)arg; spctx_t* ctx = NULL; int processing = 0; int ret = 0; int fd; ASSERT(thread); siginterrupt(SIGINT, 1); siginterrupt(SIGTERM, 1); sp_lock(); /* Get the client socket */ fd = thread->fd; sp_unlock(); /* Sometimes we get to this point and then quit is noted */ if(sp_is_quit() || (ctx = init_thread(fd)) == NULL) { /* Special case. We don't have a context so clean up descriptor */ close(fd); /* new_context() should have already logged reason */ RETURN(-1); } /* call the processor */ processing = 1; ret = smtp_passthru(ctx); cleanup: if(ctx) { /* Let the client know about fatal errors */ if(!processing && ret == -1 && spio_valid(&(ctx->client))) spio_write_data(ctx, &(ctx->client), SMTP_STARTFAILED); done_thread(ctx); } /* mark this as done */ sp_lock(); thread->fd = -1; sp_unlock(); return (void*)(ret == 0 ? 0 : 1); } static int make_connections(spctx_t* ctx, int client) { struct sockaddr_any peeraddr; struct sockaddr_any addr; struct sockaddr_any* outaddr; char buf[MAXPATHLEN]; const char* outname; ASSERT(client != -1); /* Setup the incoming connection. This also fills in peeraddr for us */ spio_attach(ctx, &(ctx->client), client, &peeraddr); sp_messagex(ctx, LOG_INFO, "accepted connection from: %s", ctx->client.peername); /* Create the server connection address */ outaddr = &(g_state.outaddr); outname = g_state.outname; /* For transparent proxying we have to discover the address to connect to */ if(g_state.transparent) { memset(&addr, 0, sizeof(addr)); SANY_LEN(addr) = sizeof(addr); #ifdef LINUX_TRANSPARENT_PROXY if(getsockopt(ctx->client.fd, SOL_IP, SO_ORIGINAL_DST, &SANY_ADDR(addr), &SANY_LEN(addr)) == -1) #else if(getsockname(ctx->client.fd, &SANY_ADDR(addr), &SANY_LEN(addr)) == -1) #endif { sp_message(ctx, LOG_ERR, "couldn't get source address for transparent proxying"); return -1; } /* Check address types */ if(sock_any_cmp(&addr, &peeraddr, SANY_OPT_NOPORT) == 0) { sp_messagex(ctx, LOG_ERR, "loop detected in transparent proxying"); return -1; } outaddr = &addr; } /* Check for loopback option */ else if(SANY_TYPE(*outaddr) == AF_INET && outaddr->s.in.sin_addr.s_addr == 0) { /* Use the incoming IP as the default */ memcpy(&addr, &(g_state.outaddr), sizeof(addr)); memcpy(&(addr.s.in.sin_addr), &(peeraddr.s.in.sin_addr), sizeof(addr.s.in.sin_addr)); outaddr = &addr; } #ifdef HAVE_INET6 /* IPv6 loopback? */ else if(SANY_TYPE(*outaddr) == AF_INET6 && outaddr->s.in.in6.sin_addr.s_addr == 0) { /* Use the incoming IP as the default */ memcpy(&addr, &(g_state.outaddr), sizeof(addr)); memcpy(&(addr.s.in.sin6_addr), &(peeraddr.s.in.sin6_addr), sizeof(addr.s.in.sin6_addr)); outaddr = &addr; } #endif /* Not transparent proxy or loopback */ else { /* Resolve any DNS name again */ if(sock_any_pton(g_state.outname, &addr, SANY_OPT_DEFPORT(25)) != -1) memcpy(&(g_state.outaddr), &addr, sizeof(g_state.outaddr)); else sp_messagex(ctx, LOG_WARNING, "couldn't resolve " CFG_OUTADDR ": %s", g_state.outname); } /* Reparse name if needed */ if(outaddr != &(g_state.outaddr)) { if(sock_any_ntop(outaddr, buf, MAXPATHLEN, 0) != -1) outname = buf; else outname = "unknown"; } /* Connect to the server */ if(spio_connect(ctx, &(ctx->server), outaddr, outname) == -1) return -1; return 0; } /* ---------------------------------------------------------------------------------- * SMTP HANDLING */ static int smtp_passthru(spctx_t* ctx) { char* t; const char* p; int r, cont, ret = 0; unsigned int mask; int neterror = 0; int first_rsp = 1; /* The first 220 response from server to be filtered */ int filter_host = 0; /* Next response is 250 hostname, which we change */ /* XCLIENT is for use in access control */ int xclient_sup = 0; /* Is XCLIENT supported? */ int xclient_sent = 0; /* Have we sent an XCLIENT command? */ ASSERT(spio_valid(&(ctx->client)) && spio_valid(&(ctx->server))); #define C_LINE ctx->client.line #define S_LINE ctx->server.line while(!sp_is_quit()) { mask = spio_select(ctx, &(ctx->client), &(ctx->server), NULL); if(mask == ~0) { neterror = 1; RETURN(-1); } /* Client has data available, read a line and process */ if(mask & 1) { if((r = spio_read_line(ctx, &(ctx->client), SPIO_DISCARD)) == -1) RETURN(-1); /* Client disconnected, we're done */ if(r == 0) RETURN(0); /* We don't let clients send really long lines */ if(LINE_TOO_LONG(r)) { if(spio_write_data(ctx, &(ctx->client), SMTP_TOOLONG) == -1) RETURN(-1); continue; } /* Only valid after EHLO or HELO commands */ filter_host = 0; /* * At this point we may want to send our XCLIENT. This is a per * connection command. */ if(xclient_sup && !xclient_sent && g_state.xclient) { sp_messagex(ctx, LOG_DEBUG, "sending XCLIENT"); if(spio_write_dataf(ctx, &(ctx->server), SMTP_XCLIENT, ctx->client.peername) == -1) RETURN(-1); if(read_server_response(ctx) == -1) RETURN(-1); if(!get_successful_rsp(S_LINE, NULL)) sp_messagex(ctx, LOG_WARNING, "server didn't accept XCLIENT"); xclient_sent = 1; } /* Handle the DATA section via our AV checker */ if(is_first_word(C_LINE, DATA_CMD, KL(DATA_CMD))) { /* Send back the intermediate response to the client */ if(spio_write_data(ctx, &(ctx->client), SMTP_DATAINTERMED) == -1) RETURN(-1); /* * Now go into scan mode. This also handles the eventual * sending of the data to the server, making the av check * transparent */ if(cb_check_data(ctx) == -1) RETURN(-1); /* Print the log out for this email */ sp_messagex(ctx, LOG_INFO, "%s", ctx->logline); /* Done with that email */ cleanup_context(ctx); /* Command handled */ continue; } /* * We need our response to HELO and EHLO to be modified in order * to prevent complaints about mail loops */ else if(is_first_word(C_LINE, EHLO_CMD, KL(EHLO_CMD))) { /* EHLO can have multline responses so we set a flag */ filter_host = 1; } /* * We always support XCLIENT on a HELO type connection. We do this * for security reasons, so that a client can't get around filtering * by backing up one on the protocol. */ else if(is_first_word(C_LINE, HELO_CMD, KL(HELO_CMD))) { sp_messagex(ctx, LOG_DEBUG, "XCLIENT support assumed"); xclient_sup = 1; /* Filter host as with EHLO above */ filter_host = 1; } /* * We don't like these commands. Filter them out. We should have * filtered out their service extensions earlier in the EHLO response. * This is just for errant clients. */ else if(is_first_word(C_LINE, STARTTLS_CMD, KL(STARTTLS_CMD)) || is_first_word(C_LINE, BDAT_CMD, KL(BDAT_CMD))) { sp_messagex(ctx, LOG_DEBUG, "ESMTP feature not supported"); if(spio_write_data(ctx, &(ctx->client), SMTP_NOTSUPP) == -1) RETURN(-1); /* Command handled */ continue; } /* * For security reasons we're not about to forward any XCLIENTs * from our client through. This could lead to a client using our * privileged IP address to change an audit trail or relay etc... */ else if(is_first_word(C_LINE, XCLIENT_CMD, KL(XCLIENT_CMD))) { sp_messagex(ctx, LOG_WARNING, "client attempted use of privileged XCLIENT feature"); if(spio_write_data(ctx, &(ctx->client), SMTP_NOTAUTH) == -1) RETURN(-1); /* Command handled */ continue; } /* All other commands just get passed through to server */ if(spio_write_data(ctx, &(ctx->server), C_LINE) == -1) RETURN(-1); continue; } /* Server has data available, read a line and forward */ if(mask & 2) { if((r = spio_read_line(ctx, &(ctx->server), SPIO_DISCARD)) == -1) RETURN(-1); if(r == 0) RETURN(0); if(LINE_TOO_LONG(r)) sp_messagex(ctx, LOG_WARNING, "SMTP response line too long. discarded extra"); /* * We intercept the first response we get from the server. * This allows us to change header so that it doesn't look * to the client server that we're in a wierd loop. * * In different situations using the local hostname or * 'localhost' don't work because the receiving mail server * expects one of those to be its own name. We use 'clamsmtp' * instead. No properly configured server would have this * as their domain name, and RFC 2821 allows us to use * an arbitrary but identifying string. */ if(first_rsp) { first_rsp = 0; if(is_first_word(S_LINE, START_RSP, KL(START_RSP))) { sp_messagex(ctx, LOG_DEBUG, "intercepting initial response"); if(spio_write_data(ctx, &(ctx->client), SMTP_BANNER) == -1) RETURN(-1); /* Command handled */ continue; } } if((p = get_successful_rsp(S_LINE, &cont)) != NULL) { /* * Certain mail servers (Postfix 1.x in particular) do a loop check * on the 250 response after a EHLO or HELO. This is where we * filter that to prevent loopback errors. */ if(filter_host) { /* Can have multi-line responses, and we want to be * sure to only replace the first one. */ filter_host = 0; sp_messagex(ctx, LOG_DEBUG, "intercepting host response"); if(spio_write_data(ctx, &(ctx->client), cont ? SMTP_EHLO_RSP : SMTP_HELO_RSP) == -1) RETURN(-1); /* A new email so cleanup */ cleanup_context(ctx); continue; } /* * Filter out any EHLO responses that we can't or don't want * to support. For example pipelining or TLS. */ if(is_first_word(C_LINE, EHLO_CMD, KL(EHLO_CMD))) { /* * On ESMTP connections we let the server tell us whether it * wants XCLIENTs or not. (In contrast to old SMTP above). */ if(is_first_word(p, ESMTP_XCLIENT, KL(ESMTP_XCLIENT))) { sp_messagex(ctx, LOG_DEBUG, "XCLIENT supported"); xclient_sup = 1; } if(is_first_word(p, ESMTP_PIPELINE, KL(ESMTP_PIPELINE)) || is_first_word(p, ESMTP_TLS, KL(ESMTP_TLS)) || is_first_word(p, ESMTP_CHUNK, KL(ESMTP_CHUNK)) || is_first_word(p, ESMTP_BINARY, KL(ESMTP_BINARY)) || is_first_word(p, ESMTP_CHECK, KL(ESMTP_CHECK)) || is_first_word(p, ESMTP_XCLIENT, KL(ESMTP_XCLIENT)) || is_first_word(p, ESMTP_XEXCH50, KL(ESMTP_XEXCH50))) { sp_messagex(ctx, LOG_DEBUG, "filtered ESMTP feature: %s", trim_space((char*)p)); /* * If this is the last line in the EHLO response we need * to replace it with something else */ if(!cont) { if(spio_write_data(ctx, &(ctx->client), SMTP_FEAT_RSP) == -1) RETURN(-1); } continue; } } /* MAIL FROM (that the server accepted) */ if((r = check_first_word(C_LINE, FROM_CMD, KL(FROM_CMD), SMTP_DELIMS)) > 0) { t = parse_address(C_LINE + r); sp_add_log(ctx, "from=", t); /* Make note of the sender for later */ ctx->sender = (char*)reallocf(ctx->sender, strlen(t) + 1); if(ctx->sender) strcpy(ctx->sender, t); } /* RCPT TO (that the server accepted) */ else if((r = check_first_word(C_LINE, TO_CMD, KL(TO_CMD), SMTP_DELIMS)) > 0) { t = parse_address(C_LINE + r); sp_add_log(ctx, "to=", t); /* Make note of the recipient for later */ r = ctx->recipients ? strlen(ctx->recipients) : 0; ctx->recipients = (char*)reallocf(ctx->recipients, r + strlen(t) + 2); if(ctx->recipients) { /* Recipients are separated by lines */ if(r != 0) strcat(ctx->recipients, "\n"); else ctx->recipients[0] = 0; strcat(ctx->recipients, t); } } /* * If the client sends an XFORWARD, and the server accepted it, * we store address for use in our forked process environment * variables (see sp_setup_forked). */ else if(is_first_word(C_LINE, XFORWARD_CMD, KL(XFORWARD_CMD))) { if((t = parse_xforward (C_LINE + KL(XFORWARD_CMD), "ADDR"))) { ctx->xforwardaddr = (char*)reallocf(ctx->xforwardaddr, strlen(t) + 1); if(ctx->xforwardaddr) strcpy(ctx->xforwardaddr, t); } if((t = parse_xforward (C_LINE + KL(XFORWARD_CMD), "HELO"))) { ctx->xforwardhelo = (char*)reallocf(ctx->xforwardhelo, strlen(t) + 1); if(ctx->xforwardhelo) strcpy(ctx->xforwardhelo, t); } } /* RSET */ else if(is_first_word(C_LINE, RSET_CMD, KL(RSET_CMD))) { cleanup_context(ctx); } } if(spio_write_data(ctx, &(ctx->client), S_LINE) == -1) RETURN(-1); continue; } } cleanup: if(!neterror && ret == -1 && spio_valid(&(ctx->client))) spio_write_data(ctx, &(ctx->client), SMTP_FAILED); return ret; } /* ----------------------------------------------------------------------------- * SMTP PASSTHRU FUNCTIONS FOR DATA CHECK */ static char* parse_address(char* line) { char* t; line = trim_start(line); /* * We parse out emails in the form of * as well as accept other addresses. */ if(strncmp(line, "<>", 2) == 0) return("<>"); if(line[0] == '<') { if((t = strchr(line, '>')) != NULL) { *t = 0; line++; return line; } } return trim_end(line); } static char* parse_xforward(char* line, const char* part) { char* t; char* e; t = strcasestr(line, part); if(!t) return NULL; /* equals sign and surrounding */ t = trim_start(t + strlen(part)); if(*t != '=') return NULL; t = trim_start(t + 1); if(!*t) return NULL; /* Find the end of the thingy */ if(*t == '[') { t++; e = strchr(t, ']'); } else { e = t + strcspn(t, " \t"); } if(!e) return NULL; *e = 0; return t; } static const char* get_successful_rsp(const char* line, int* cont) { /* * We check for both '250 xxx' type replies * and the continued response '250-xxxx' type */ line = trim_start(line); if(line[0] == '2' && isdigit(line[1]) && isdigit(line[2]) && (line[3] == ' ' || line[3] == '-')) { if(cont) *cont = (line[3] == '-'); return line + 4; } return NULL; } void sp_add_log(spctx_t* ctx, char* prefix, char* line) { char* t = ctx->logline; int l = strlen(t); int x; ASSERT(l <= SP_LOG_LINE_LEN); /* Add up necessary lengths */ x = 2 + strlen(prefix) + strlen(line) + 1; if(l + x >= SP_LOG_LINE_LEN) l = SP_LOG_LINE_LEN - x; t += l; l = SP_LOG_LINE_LEN - l; *t = 0; if(ctx->logline[0] != 0) strlcat(t, ", ", l); strlcat(t, prefix, l); /* Skip initial white space */ line = trim_start(line); strlcat(t, line, l); /* Skip later white space */ trim_end(t); } int sp_read_data(spctx_t* ctx, const char** data) { int r; ASSERT(ctx); ASSERT(data); *data = NULL; switch(r = spio_read_line(ctx, &(ctx->client), SPIO_QUIET)) { case 0: sp_messagex(ctx, LOG_ERR, "unexpected end of data from client"); return -1; case -1: /* Message already printed */ return -1; }; if(g_state.keepalives > 0) { /* * During this time we're just reading from the client. If we haven't * had any interaction with the server recently then send something * to let it know we're still around. */ if((ctx->server.last_action + g_state.keepalives) < time(NULL)) do_server_noop(ctx); } if(ctx->_crlf && strcmp(ctx->client.line, DATA_END_SIG) == 0) return 0; /* Check if this line ended with a CRLF */ ctx->_crlf = (strcmp(CRLF, ctx->client.line + (r - KL(CRLF))) == 0); *data = ctx->client.line; return r; } int sp_write_data(spctx_t* ctx, const char* buf, int len) { int r = 0; ASSERT(ctx); /* When a null buffer close the cache file */ if(!buf) { if(ctx->cachefile) { if(fclose(ctx->cachefile) == EOF) { sp_message(ctx, LOG_ERR, "couldn't write to cache file: %s", ctx->cachename); r = -1; } ctx->cachefile = NULL; } return r; } /* Make sure we have a file open */ if(!ctx->cachefile) { int tfd; /* Make sure afore mentioned file is gone */ if(ctx->cachename[0]) unlink(ctx->cachename); snprintf(ctx->cachename, MAXPATHLEN, "%s/%s.XXXXXX", g_state.directory, g_state.name); if((tfd = mkstemp(ctx->cachename)) == -1 || (ctx->cachefile = fdopen(tfd, "w")) == NULL) { if(tfd != -1) close(tfd); sp_message(ctx, LOG_ERR, "couldn't open cache file"); return -1; } fcntl(tfd, F_SETFD, fcntl(tfd, F_GETFD, 0) | FD_CLOEXEC); sp_messagex(ctx, LOG_DEBUG, "created cache file: %s", ctx->cachename); } fwrite(buf, 1, len, ctx->cachefile); if(ferror(ctx->cachefile)) { sp_message(ctx, LOG_ERR, "couldn't write to cache file: %s", ctx->cachename); return -1; } return len; } int sp_cache_data(spctx_t* ctx) { int r, count = 0; const char* data; while((r = sp_read_data(ctx, &data)) != 0) { if(r < 0) return -1; /* Message already printed */ count += r; if((r = sp_write_data(ctx, data, r)) < 0) return -1; /* Message already printed */ } /* End the caching */ if(sp_write_data(ctx, NULL, 0) < 0) return -1; sp_messagex(ctx, LOG_DEBUG, "wrote %d bytes to cache", count); return count; } /* Important: |date| should be at least MAX_DATE_LENGTH long */ static void make_date(spctx_t* ctx, char* date) { size_t date_len; struct tm t2; time_t t; /* Get a basic date like: 'Wed Jun 30 21:49:08 1993' */ if(time(&t) == (time_t)-1 || !localtime_r(&t, &t2) || !asctime_r(&t2, date)) { sp_message(ctx, LOG_WARNING, "unable to get date for header"); date[0] = 0; return; } trim_end(date); date_len = strlen(date); { #ifdef HAVE_TM_GMTOFF time_t timezone = t2.tm_gmtoff; const char *tzname[2] = { t2.tm_zone, t2.tm_zone }; snprintf(date + date_len, MAX_DATE_LENGTH - date_len, " %+03d%02d (%s)", (int)(timezone / 3600), (int)(timezone % 3600), tzname[t2.tm_isdst ? 1 : 0]); #else /* Apparently Solaris needs this nasty hack.... */ #define DAY_MIN (24 * HOUR_MIN) #define HOUR_MIN 60 #define MIN_SEC 60 struct tm gmt; struct tm *lt; int off; gmt = *gmtime(&t); lt = localtime(&t); off = (lt->tm_hour - gmt.tm_hour) * HOUR_MIN + lt->tm_min - gmt.tm_min; if (lt->tm_year < gmt.tm_year) off -= DAY_MIN; else if (lt->tm_year > gmt.tm_year) off += DAY_MIN; else if (lt->tm_yday < gmt.tm_yday) off -= DAY_MIN; else if (lt->tm_yday > gmt.tm_yday) off += DAY_MIN; if (lt->tm_sec <= gmt.tm_sec - MIN_SEC) off -= 1; else if (lt->tm_sec >= gmt.tm_sec + MIN_SEC) off += 1; snprintf(date + date_len, MAX_DATE_LENGTH - date_len, " %+03d%02d (%s)", (int)(off / HOUR_MIN), (int)(abs(off) % HOUR_MIN), tzname[lt->tm_isdst ? 1 : 0]); #endif } /* Break it off just in case */ date[MAX_DATE_LENGTH - 1] = 0; } /* Important: |header| should be a buffer of MAX_HEADER_LENGTH */ static int make_header(spctx_t* ctx, const char* format_str, char* header) { char date[MAX_DATE_LENGTH]; int remaining, l; const char* f; char* p; date[0] = 0; remaining = MAX_HEADER_LENGTH - 1; p = header; /* Parse the format string and replace special characters with our data */ for(f = format_str; *f && remaining > 0; f++) { /* A backslash escapes certain characters */ if(f[0] == '\\' && f[1] != 0) { switch(*(++f)) { case 'r': *p = '\r'; break; case 'n': *p = '\n'; break; case 't': *p = '\t'; break; default: *p = *f; break; } ++p; --remaining; } /* * Special symbols: * %i: client's IP * %l: server's IP * %d: date */ else if(f[0] == '%' && f[1] != 0) { switch(*(++f)) { case 'i': l = strlen(ctx->client.peername); strncpy(p, ctx->client.peername, remaining); remaining -= l; p += l; break; case 'l': l = strlen(ctx->client.localname); strncpy(p, ctx->client.localname, remaining); remaining -= l; p += l; break; case 'd': if(date[0] == 0) make_date(ctx, date); l = strlen(date); strncpy(p, date, remaining); remaining -= l; p += l; break; case '%': *p = '%'; ++p; break; default: sp_messagex(ctx, LOG_WARNING, "invalid header symbol: %%%c", *f); break; }; } else { *(p++) = *f; remaining--; } } if((p + 1) < (header + MAX_HEADER_LENGTH)) p[1] = 0; header[MAX_HEADER_LENGTH - 1] = 0; l = p - header; return l >= MAX_HEADER_LENGTH ? MAX_HEADER_LENGTH - 1 : l; } int sp_done_data(spctx_t* ctx, const char *headertmpl) { FILE* file = 0; int ret = 0; char *line; char header[MAX_HEADER_LENGTH] = ""; size_t header_len, line_len; int header_prepend = 0; ssize_t rc; ASSERT(ctx->cachename[0]); /* Must still be around */ ASSERT(!ctx->cachefile); /* File must be closed */ memset(header, 0, sizeof(header)); /* Alloc line buffer */ line_len = SP_LINE_LENGTH; if((line = (char *)malloc(line_len)) == NULL) RETURN(-1); /* Open the file */ file = fopen(ctx->cachename, "r"); if(file == NULL) { sp_message(ctx, LOG_ERR, "couldn't open cache file: %s", ctx->cachename); RETURN(-1); } /* Ask the server for permission to send data */ if(spio_write_data(ctx, &(ctx->server), SMTP_DATA) == -1) RETURN(-1); if(read_server_response(ctx) == -1) RETURN(-1); /* If server returns an error then tell the client */ if(!is_first_word(ctx->server.line, DATA_RSP, KL(DATA_RSP))) { if(spio_write_data(ctx, &(ctx->client), ctx->server.line) == -1) RETURN(-1); sp_messagex(ctx, LOG_DEBUG, "server refused data transfer"); RETURN(0); } sp_messagex(ctx, LOG_DEBUG, "sending from cache file: %s", ctx->cachename); if(headertmpl) { header_len = make_header(ctx, headertmpl, header); if(is_first_word(RCVD_HEADER, header, KL(RCVD_HEADER))) header_prepend = 1; } /* If we have to prepend the header, do it */ if(header[0] != '\0' && header_prepend) { if(spio_write_data_raw(ctx, &(ctx->server), (unsigned char*)header, header_len) == -1 || spio_write_data_raw(ctx, &(ctx->server), (unsigned char*)CRLF, KL(CRLF)) == -1) RETURN(-1); header[0] = '\0'; } /* Transfer actual file data */ while((rc = getline(&line, &line_len, file)) != -1) { /* * If the line is . we need to change it so that * it doesn't end the email. We do this by adding a space. * This won't occur much in clamsmtpd, but proxsmtpd might * have filters that accidentally put this in. */ if(strcmp(line, "." CRLF) == 0) strncpy(line, ". " CRLF, SP_LINE_LENGTH); if(header[0] != '\0') { /* * The first blank line we see means the headers are done. * At this point we add in our virus checked header. */ if(is_blank_line(line)) { if(spio_write_data_raw(ctx, &(ctx->server), (unsigned char*)header, header_len) == -1 || spio_write_data_raw(ctx, &(ctx->server), (unsigned char*)CRLF, KL(CRLF)) == -1) RETURN(-1); header[0] = '\0'; } } if(spio_write_data_raw(ctx, &(ctx->server), (unsigned char*)line, rc) == -1) RETURN(-1); } if(ferror(file)) sp_message(ctx, LOG_ERR, "error reading cache file: %s", ctx->cachename); if(ferror(file) || spio_write_data(ctx, &(ctx->server), DATA_END_SIG) == -1) { /* Tell the client it went wrong */ spio_write_data(ctx, &(ctx->client), SMTP_FAILED); RETURN(-1); } sp_messagex(ctx, LOG_DEBUG, "sent email data"); /* Okay read the response from the server and echo it to the client */ if(read_server_response(ctx) == -1) RETURN(-1); if(spio_write_data(ctx, &(ctx->client), ctx->server.line) == -1) RETURN(-1); cleanup: if(line) free(line); if(file) fclose(file); /* read-only so no error check */ return ret; } int sp_fail_data(spctx_t* ctx, const char* smtp_status) { char buf[256 + KL(SMTP_REJPREFIX) + KL(CRLF) + 1]; char* t = NULL; int len, x; int pref = 0; int crlf = 0; if(smtp_status == NULL) smtp_status = SMTP_FAILED; x = strtol(smtp_status, &t, 10); len = strlen(smtp_status); /* We need 3 digits and CRLF at the end for a premade SMTP message */ if(x == 0 || t != smtp_status + 3) pref = 1; /* We need a CRLF at the end */ if(strcmp(smtp_status + (len - KL(CRLF)), CRLF) != 0) crlf = 1; if(pref || crlf) { /* Note that we truncate long lines */ snprintf(buf, sizeof(buf), "%s%.256s%s", pref ? SMTP_REJPREFIX : "", smtp_status, crlf ? CRLF : ""); buf[sizeof(buf) - 1] = 0; smtp_status = buf; } if(spio_write_data(ctx, &(ctx->client), smtp_status) == -1) return -1; /* Tell the server to forget about the current message */ if(spio_write_data(ctx, &(ctx->server), SMTP_RSET) == -1 || read_server_response(ctx) == -1) return -1; return 0; } static int read_server_response(spctx_t* ctx) { int r; /* Read response line from the server */ if((r = spio_read_line(ctx, &(ctx->server), SPIO_DISCARD)) == -1) return -1; if(r == 0) { sp_messagex(ctx, LOG_ERR, "server disconnected unexpectedly"); /* Tell the client it went wrong */ spio_write_data(ctx, &(ctx->client), SMTP_FAILED); return 0; } if(LINE_TOO_LONG(r)) sp_messagex(ctx, LOG_WARNING, "SMTP response line too long. discarded extra"); return 0; } static void do_server_noop(spctx_t* ctx) { if(spio_valid(&(ctx->server))) { if(spio_write_data(ctx, &(ctx->server), SMTP_NOOP) != -1) spio_read_line(ctx, &(ctx->server), SPIO_DISCARD); } } void sp_setup_forked(spctx_t* ctx, int file) { /* Signals we've messed with */ signal(SIGPIPE, SIG_DFL); signal(SIGHUP, SIG_DFL); signal(SIGINT, SIG_DFL); signal(SIGTERM, SIG_DFL); siginterrupt(SIGINT, 0); siginterrupt(SIGTERM, 0); if(ctx->sender) setenv("SENDER", ctx->sender, 1); if(ctx->recipients) setenv("RECIPIENTS", ctx->recipients, 1); if(file && ctx->cachename[0]) setenv("EMAIL", ctx->cachename, 1); if(spio_valid(&(ctx->client))) setenv("CLIENT", ctx->client.peername, 1); if(ctx->xforwardaddr) setenv("REMOTE", ctx->xforwardaddr, 1); if(ctx->xforwardhelo) setenv("REMOTE_HELO", ctx->xforwardhelo, 1); if(spio_valid(&(ctx->server))) setenv("SERVER", ctx->server.peername, 1); setenv("TMPDIR", g_state.directory, 1); } /* ---------------------------------------------------------------------------------- * LOGGING */ const char kMsgDelimiter[] = ": "; #define MAX_MSGLEN 1024 static void vmessage(spctx_t* ctx, int level, int err, const char* msg, va_list ap) { char buf[MAX_MSGLEN]; int e = errno; if(g_state.daemonized) { if(level >= LOG_DEBUG) return; } else { if(g_state.debug_level < level) return; } ASSERT(msg); if(ctx) snprintf(buf, MAX_MSGLEN, "%06X: %s%s", ctx->id, msg, err ? ": " : ""); else snprintf(buf, MAX_MSGLEN, "%s%s", msg, err ? ": " : ""); if(err) { /* strerror_r doesn't want to work for us for some reason len = strlen(buf); strerror_r(e, buf + len, MAX_MSGLEN - len); */ sp_lock(); strncat(buf, strerror(e), MAX_MSGLEN); sp_unlock(); } /* As a precaution */ buf[MAX_MSGLEN - 1] = 0; /* Either to syslog or stderr */ if(g_state.daemonized) vsyslog(level, buf, ap); else vwarnx(buf, ap); } void sp_messagex(spctx_t* ctx, int level, const char* msg, ...) { va_list ap; va_start(ap, msg); vmessage(ctx, level, 0, msg, ap); va_end(ap); } void sp_message(spctx_t* ctx, int level, const char* msg, ...) { va_list ap; va_start(ap, msg); vmessage(ctx, level, 1, msg, ap); va_end(ap); } /* ----------------------------------------------------------------------- * LOCKING */ void sp_lock() { int r; #ifdef _DEBUG int wait = 0; #endif #ifdef _DEBUG r = pthread_mutex_trylock(&g_mutex); if(r == EBUSY) { wait = 1; sp_message(NULL, LOG_DEBUG, "thread will block: %d", pthread_self()); r = pthread_mutex_lock(&g_mutex); } #else r = pthread_mutex_lock(&g_mutex); #endif if(r != 0) { errno = r; sp_message(NULL, LOG_CRIT, "threading problem. couldn't lock mutex"); } #ifdef _DEBUG else if(wait) { sp_message(NULL, LOG_DEBUG, "thread unblocked: %d", pthread_self()); } #endif } void sp_unlock() { int r = pthread_mutex_unlock(&g_mutex); if(r != 0) { errno = r; sp_message(NULL, LOG_CRIT, "threading problem. couldn't unlock mutex"); } } /* ----------------------------------------------------------------------------- * CONFIG FILE */ int sp_parse_option(const char* name, const char* value) { char* t; int ret = 0; if(strcasecmp(CFG_MAXTHREADS, name) == 0) { g_state.max_threads = strtol(value, &t, 10); if(*t || g_state.max_threads <= 1 || g_state.max_threads >= 1024) errx(2, "invalid setting: " CFG_MAXTHREADS " (must be between 1 and 1024)"); ret = 1; } else if(strcasecmp(CFG_TIMEOUT, name) == 0) { g_state.timeout.tv_sec = strtol(value, &t, 10); if(*t || g_state.timeout.tv_sec <= 0) errx(2, "invalid setting: " CFG_TIMEOUT); ret = 1; } else if(strcasecmp(CFG_KEEPALIVES, name) == 0) { g_state.keepalives = strtol(value, &t, 10); if(*t || g_state.keepalives < 0) errx(2, "invalid setting: " CFG_KEEPALIVES); ret = 1; } else if(strcasecmp(CFG_XCLIENT, name) == 0) { if((g_state.xclient = strtob(value)) == -1) errx(2, "invalid value for " CFG_XCLIENT); ret = 1; } else if(strcasecmp(CFG_OUTADDR, name) == 0) { if(sock_any_pton(value, &(g_state.outaddr), SANY_OPT_DEFPORT(25)) == -1) errx(2, "invalid " CFG_OUTADDR " socket name or ip: %s", value); g_state.outname = value; ret = 1; } else if(strcasecmp(CFG_LISTENADDR, name) == 0) { if(sock_any_pton(value, &(g_state.listenaddr), SANY_OPT_DEFANY | SANY_OPT_DEFPORT(DEFAULT_PORT)) == -1) errx(2, "invalid " CFG_LISTENADDR " socket name or ip: %s", value); g_state.listenname = value; ret = 1; } else if(strcasecmp(CFG_TRANSPARENT, name) == 0) { if((g_state.transparent = strtob(value)) == -1) errx(2, "invalid value for " CFG_TRANSPARENT); ret = 1; } else if(strcasecmp(CFG_DIRECTORY, name) == 0) { if(strlen(value) == 0) errx(2, "invalid setting: " CFG_DIRECTORY); g_state.directory = value; ret = 1; } else if(strcasecmp(CFG_USER, name) == 0) { if(strlen(value) == 0) errx(2, "invalid setting: " CFG_USER); g_state.user = value; ret = 1; } else if(strcasecmp(CFG_PIDFILE, name) == 0) { if(g_state.pidfile != NULL) sp_messagex(NULL, LOG_WARNING, "ignoring pid file specified on the command line. "); if(strlen(value) == 0) g_state.pidfile = NULL; else g_state.pidfile = value; ret = 1; } /* Always pass through to program */ if(cb_parse_option(name, value) == 1) ret = 1; return ret; } static int parse_config_file(const char* configfile) { FILE* f = NULL; long len; char* p; char* t; char* n; ASSERT(configfile); ASSERT(!g_state._p); f = fopen(configfile, "r"); if(f == NULL) { /* Soft errors when default config file and not found */ if((errno == ENOENT || errno == ENOTDIR)) return -1; else err(1, "couldn't open config file: %s", configfile); } /* Figure out size */ if(fseek(f, 0, SEEK_END) == -1 || (len = ftell(f)) == -1 || fseek(f, 0, SEEK_SET) == -1) err(1, "couldn't seek config file: %s", configfile); if((g_state._p = (char*)malloc(len + 2)) == NULL) errx(1, "out of memory"); /* And read in one block */ if(fread(g_state._p, 1, len, f) != len) err(1, "couldn't read config file: %s", configfile); fclose(f); sp_messagex(NULL, LOG_DEBUG, "read config file: %s", configfile); /* Double null terminate the data */ p = g_state._p; p[len] = '\n'; p[len + 1] = 0; n = g_state._p; /* Go through lines and process them */ while((t = strchr(n, '\n')) != NULL) { *t = 0; p = n; /* Do this before cleaning below */ n = t + 1; p = trim_start(p); /* Comments and empty lines */ if(*p == 0 || *p == '#') continue; /* Look for the break between name: value */ t = strchr(p, ':'); if(t == NULL) errx(2, "invalid config line: %s", p); /* Null terminate and split value part */ *t = 0; t++; t = trim_space(t); p = trim_space(p); /* Pass it through our options parsers */ if(sp_parse_option(p, t) == 0) /* If not recognized then it's invalid */ errx(2, "invalid config line: %s", p); sp_messagex(NULL, LOG_DEBUG, "parsed option: %s: %s", p, t); } return 0; } clamsmtp-1.10/common/spio.c0000644000175000017500000004101210626145037012604 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter */ /* * select() and stdio are basically mutually exclusive. * Hence all of this code to try to get some buffering * along with select IO multiplexing. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "compat.h" #include "usuals.h" #include "sock_any.h" #include "stringx.h" #include "sppriv.h" #define MAX_LOG_LINE 79 #define GET_IO_NAME(io) ((io)->name ? (io)->name : "??? ") #define HAS_EXTRA(io) ((io)->_ln > 0) static void close_raw(int* fd) { ASSERT(fd); shutdown(*fd, SHUT_RDWR); close(*fd); *fd = -1; } static void log_io_data(spctx_t* ctx, spio_t* io, const char* data, int read) { char buf[MAX_LOG_LINE + 1]; int pos, len; ASSERT(ctx && io && data); for(;;) { data += strspn(data, "\r\n"); if(!*data) break; pos = strcspn(data, "\r\n"); len = pos < MAX_LOG_LINE ? pos : MAX_LOG_LINE; memcpy(buf, data, len); buf[len] = 0; sp_messagex(ctx, LOG_DEBUG, "%s%s%s", GET_IO_NAME(io), read ? " < " : " > ", buf); data += pos; } } void spio_init(spio_t* io, const char* name) { ASSERT(io && name); memset(io, 0, sizeof(*io)); io->name = name; io->fd = -1; } void spio_attach(spctx_t* ctx, spio_t* io, int fd, struct sockaddr_any* peer) { struct sockaddr_any peeraddr; struct sockaddr_any locaddr; io->fd = fd; /* Get the address on which we accepted the connection */ memset(&locaddr, 0, sizeof(locaddr)); SANY_LEN(locaddr) = sizeof(locaddr); if(getsockname(fd, &SANY_ADDR(locaddr), &SANY_LEN(locaddr)) == -1 || sock_any_ntop(&locaddr, io->localname, MAXPATHLEN, SANY_OPT_NOPORT) == -1) { if (errno != EAFNOSUPPORT) sp_message(ctx, LOG_WARNING, "%s: couldn't get socket address", GET_IO_NAME(io)); strlcpy(io->localname, "UNKNOWN", MAXPATHLEN); } /* If the caller doesn't want the peer then use our own */ if (peer == NULL) peer = &peeraddr; memset(peer, 0, sizeof(*peer)); SANY_LEN(*peer) = sizeof(*peer); if(getpeername(fd, &SANY_ADDR(*peer), &SANY_LEN(*peer)) == -1 || sock_any_ntop(peer, io->peername, MAXPATHLEN, SANY_OPT_NOPORT) == -1) { if (errno != EAFNOSUPPORT) sp_message(ctx, LOG_WARNING, "%s: couldn't get peer address", GET_IO_NAME(io)); strlcpy(io->peername, "UNKNOWN", MAXPATHLEN); } /* As a double check */ io->line[0] = 0; io->_nx = NULL; io->_ln = 0; } int spio_connect(spctx_t* ctx, spio_t* io, const struct sockaddr_any* sany, const char* addrname) { int ret = 0; int fd; ASSERT(ctx && io && sany && addrname); ASSERT(io->fd == -1); if((fd = socket(SANY_TYPE(*sany), SOCK_STREAM, 0)) == -1) RETURN(-1); if(setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &(g_state.timeout), sizeof(g_state.timeout)) == -1 || setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &(g_state.timeout), sizeof(g_state.timeout)) == -1) sp_messagex(ctx, LOG_DEBUG, "%s: couldn't set timeouts on connection", GET_IO_NAME(io)); fcntl(fd, F_SETFD, fcntl(fd, F_GETFD, 0) | FD_CLOEXEC); if(connect(fd, &SANY_ADDR(*sany), SANY_LEN(*sany)) == -1) { close_raw(&fd); RETURN(-1); } spio_attach(ctx, io, fd, NULL); cleanup: if(ret < 0) { if(spio_valid(io)) close_raw(&(io->fd)); sp_message(ctx, LOG_ERR, "%s: couldn't connect to: %s", GET_IO_NAME(io), addrname); return -1; } ASSERT(io->fd != -1); sp_messagex(ctx, LOG_DEBUG, "%s connected to: %s", GET_IO_NAME(io), io->peername); return 0; } void spio_disconnect(spctx_t* ctx, spio_t* io) { ASSERT(ctx && io); if(spio_valid(io)) { close_raw(&(io->fd)); sp_messagex(ctx, LOG_DEBUG, "%s connection closed", GET_IO_NAME(io)); } } unsigned int spio_select(spctx_t* ctx, ...) { fd_set mask; spio_t* io; int ret = 0; int have = 0; int i = 0; va_list ap; struct timeval timeout; ASSERT(ctx); FD_ZERO(&mask); va_start(ap, ctx); while((io = va_arg(ap, spio_t*)) != NULL) { if(spio_valid(io)) { /* We can't handle more than 31 args */ if(i > (sizeof(int) * 8) - 2) break; /* Check if the buffer has something in it */ if(HAS_EXTRA(io)) ret |= (1 << i); /* Mark for select */ FD_SET(io->fd, &mask); have = 1; } i++; } va_end(ap); /* If any buffers had something present, then return */ if(ret != 0) return ret; /* No valid file descriptors */ if(!have) return ~0; for(;;) { /* Select can modify the timeout argument so we copy */ memcpy(&timeout, &(g_state.timeout), sizeof(timeout)); /* Otherwise wait on more data */ switch(select(FD_SETSIZE, &mask, NULL, NULL, &timeout)) { case 0: sp_messagex(ctx, LOG_ERR, "network operation timed out"); return ~0; case -1: if(errno == EINTR) { if(!sp_is_quit()) continue; } else sp_message(ctx, LOG_ERR, "couldn't select on sockets"); return ~0; }; break; } /* See what came in */ i = 0; va_start(ap, ctx); while((io = va_arg(ap, spio_t*)) != NULL) { if(spio_valid(io)) { /* We can't handle more than 31 args */ if(i > (sizeof(int) * 8) - 2) break; /* We have data on the descriptor, which is an action */ io->last_action = time(NULL); /* Check if the buffer has something in it */ if(FD_ISSET(io->fd, &mask)) ret |= (1 << i); } i++; } va_end(ap); return ret; } int read_raw(spctx_t* ctx, spio_t* io, int opts) { int len, x, count; char* at; char* p; /* * Just a refresher: * * _nx: Extra data read on last read. * _ln: Length of that extra data. * * _nx should never be equal to line when entering this function. * And _ln should always be less than a full buffer. */ count = 0; io->line[0] = 0; /* Remaining data in the buffer */ if(io->_nx && io->_ln > 0) { ASSERT(!io->_nx || io->_nx > io->line); ASSERT(io->_ln < SP_LINE_LENGTH); ASSERT(io->_nx + io->_ln <= io->line + SP_LINE_LENGTH); /* Check for a return in the current buffer */ if((p = (char*)memchr(io->_nx, '\n', io->_ln)) != NULL) { /* Move data to front */ x = (p - io->_nx) + 1; ASSERT(x > 0); memmove(io->line, io->_nx, x); /* Null teriminate it */ io->line[x] = 0; /* Do maintanence for next time around */ io->_ln -= x; io->_nx += x; /* A double check on the return value */ count += x; return count; } /* Otherwise move all old data to front */ memmove(io->line, io->_nx, io->_ln); count += io->_ln; /* We always leave space for a null terminator */ len = (SP_LINE_LENGTH - io->_ln) - 1; at = io->line + io->_ln; } /* No data at front just read straight in */ else { /* We always leave space for a null terminator */ len = SP_LINE_LENGTH - 1; at = io->line; } for(;;) { /* Read a block of data */ ASSERT(io->fd != -1); x = read(io->fd, at, sizeof(char) * len); if(x == -1) { if(errno == EINTR) { /* When the application is quiting */ if(sp_is_quit()) return -1; /* For any other signal we go again */ continue; } if(errno == ECONNRESET) /* Not usually a big deal so supresse the error */ sp_messagex(ctx, LOG_DEBUG, "%s: connection disconnected by peer", GET_IO_NAME(io)); else if(errno == EAGAIN) sp_messagex(ctx, LOG_WARNING, "%s: network read operation timed out", GET_IO_NAME(io)); else sp_message(ctx, LOG_ERR, "%s: couldn't read data from socket", GET_IO_NAME(io)); /* * The basic logic here is that if we've had a fatal error * reading from the socket once then we shut it down as it's * no good trying to read from again later. */ close_raw(&(io->fd)); return -1; } /* End of data */ else if(x == 0) { /* Maintenance for remaining data */ io->_nx = NULL; io->_ln = 0; return count; } /* Read data which is a descriptor action */ io->last_action = time(NULL); /* Check for a new line */ p = (char*)memchr(at, '\n', x); if(p != NULL) { p++; count += (p - at); /* Insert the null terminator */ len = x - (p - at); memmove(p + 1, p, len); *p = 0; /* Do maintenence for remaining data */ io->_nx = p + 1; io->_ln = len; return count; } /* Move the buffer pointer along */ at += x; len -= x; count += x; if(len <= 0) { /* Keep reading until we hit a new line */ if(opts & SPIO_DISCARD) { /* * K, basically the logic is that we're discarding * data and the data will be screwed up. So overwriting * some valid data in order to flush the line and * keep the buffering simple is a price we pay gladly :) */ ASSERT(128 < SP_LINE_LENGTH); at = (io->line + SP_LINE_LENGTH) - 128; len = 128; /* Go for next read */ continue; } io->_nx = NULL; io->_ln = 0; /* Null terminate */ io->line[SP_LINE_LENGTH] = 0; /* A double check on the return value */ return count; } } } int spio_read_line(spctx_t* ctx, spio_t* io, int opts) { int x, l; char* t; ASSERT(ctx && io); if(!spio_valid(io)) { sp_messagex(ctx, LOG_WARNING, "%s: tried to read from a closed connection", GET_IO_NAME(io)); return 0; } x = read_raw(ctx, io, opts); if(x > 0) { if(opts & SPIO_TRIM) { t = io->line; while(*t && isspace(*t)) t++; /* Bump the entire line down */ l = t - io->line; memmove(io->line, t, (x + 1) - l); x -= l; /* Now the end */ t = io->line + x; while(t > io->line && isspace(*(t - 1))) { *(--t) = 0; x--; } } if(!(opts & SPIO_QUIET)) log_io_data(ctx, io, io->line, 1); } return x; } int spio_write_data(spctx_t* ctx, spio_t* io, const char* data) { int len = strlen(data); ASSERT(ctx && io && data); if(!spio_valid(io)) { sp_message(ctx, LOG_ERR, "%s: connection closed. can't write data", GET_IO_NAME(io)); return -1; } log_io_data(ctx, io, data, 0); return spio_write_data_raw(ctx, io, (unsigned char*)data, len); } int spio_write_dataf(struct spctx* ctx, spio_t* io, const char* fmt, ...) { char buf[SP_LINE_LENGTH]; va_list ap; ASSERT(ctx && io && fmt); buf[0] = 0; va_start(ap, fmt); vsnprintf(buf, SP_LINE_LENGTH, fmt, ap); va_end(ap); buf[SP_LINE_LENGTH - 1] = 0; return spio_write_data(ctx, io, buf); } int spio_write_data_raw(spctx_t* ctx, spio_t* io, const unsigned char* buf, int len) { int r; ASSERT(ctx && io && buf); if(io->fd == -1) return 0; io->last_action = time(NULL); while(len > 0) { r = write(io->fd, buf, len); if(r > 0) { buf += r; len -= r; } else if(r == -1) { if(errno == EINTR) { /* When the application is quiting */ if(sp_is_quit()) return -1; /* For any other signal we go again */ continue; } /* * The basic logic here is that if we've had a fatal error * writing to the socket once then we shut it down as it's * no good trying to write to it again later. */ close_raw(&(io->fd)); if(errno == EAGAIN) sp_messagex(ctx, LOG_WARNING, "%s: network write operation timed out", GET_IO_NAME(io)); else sp_message(ctx, LOG_ERR, "%s: couldn't write data to socket", GET_IO_NAME(io)); return -1; } } return 0; } void spio_read_junk(spctx_t* ctx, spio_t* io) { char buf[16]; const char* t; int said = 0; int l; ASSERT(ctx); ASSERT(io); /* Truncate any data in buffer */ io->_ln = 0; io->_nx = 0; if(!spio_valid(io)) return; /* Make it non blocking */ fcntl(io->fd, F_SETFL, fcntl(io->fd, F_GETFL, 0) | O_NONBLOCK); for(;;) { l = read(io->fd, buf, sizeof(buf) - 1); if(l <= 0) break; io->last_action = time(NULL); buf[l] = 0; t = trim_start(buf); if(!said && *t) { sp_messagex(ctx, LOG_DEBUG, "%s: received junk data from daemon", GET_IO_NAME(io)); said = 1; } } fcntl(io->fd, F_SETFL, fcntl(io->fd, F_GETFL, 0) & ~O_NONBLOCK); } clamsmtp-1.10/common/sock_any.h0000644000175000017500000000564110626145053013453 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef __SOCK_ANY_H__ #define __SOCK_ANY_H__ #include #include #include struct sockaddr_any { union _sockaddr_any { /* The header */ struct sockaddr a; /* The different types */ struct sockaddr_un un; struct sockaddr_in in; #ifdef HAVE_INET6 struct sockaddr_in6 in6; #endif } s; size_t namelen; }; #define SANY_ADDR(any) ((any).s.a) #define SANY_LEN(any) ((any).namelen) #define SANY_TYPE(any) ((any).s.a.sa_family) int sock_any_pton(const char* addr, struct sockaddr_any* any, int opts); /* The default port to fill in when no IP/IPv6 port specified */ #define SANY_OPT_DEFPORT(p) (int)((p) & 0xFFFF) /* When only port specified default to IPANY */ #define SANY_OPT_DEFANY 0x00000000 /* When only port specified default to LOCALHOST */ #define SANY_OPT_DEFLOCAL 0x00100000 /* When only port specified default to IPv6 */ #ifdef HAVE_INET6 #define SANY_OPT_DEFINET6 0x00200000 #endif int sock_any_ntop(const struct sockaddr_any* any, char* addr, size_t addrlen, int opts); /* Don't print or compare the port */ #define SANY_OPT_NOPORT 0x01000000 int sock_any_cmp(const struct sockaddr_any* a1, const struct sockaddr_any* a2, int opts); #endif /* __SOCK_ANY_H__ */ clamsmtp-1.10/src/0000777000175000017500000000000011032211510011031 500000000000000clamsmtp-1.10/src/Makefile.am0000644000175000017500000000072710577653460013042 00000000000000 sbin_PROGRAMS = clamsmtpd clamsmtpd_SOURCES = clamsmtpd.c clamsmtpd.h \ ../common/spio.c ../common/smtppass.c ../common/smtppass.h ../common/sppriv.h \ ../common/stringx.c ../common/stringx.h ../common/sock_any.c ../common/sock_any.h \ ../common/usuals.h ../common/compat.c ../common/compat.h clamsmtpd_CFLAGS = -I${top_srcdir}/common/ -I${top_srcdir}/ all-local: @echo "NOTE: Ignore any warnings about mktemp(). 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distclean-compile distclean-generic distclean-tags distdir dvi \ dvi-am html html-am info info-am install install-am \ install-data install-data-am install-dvi install-dvi-am \ install-exec install-exec-am install-html install-html-am \ install-info install-info-am install-man install-pdf \ install-pdf-am install-ps install-ps-am install-sbinPROGRAMS \ install-strip installcheck installcheck-am installdirs \ maintainer-clean maintainer-clean-generic mostlyclean \ mostlyclean-compile mostlyclean-generic pdf pdf-am ps ps-am \ tags uninstall uninstall-am uninstall-sbinPROGRAMS all-local: @echo "NOTE: Ignore any warnings about mktemp(). It's used safely in this case." @echo # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: clamsmtp-1.10/src/clamsmtpd.c0000644000175000017500000005253010634000750013113 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter */ #include #include #include #include #include #include #include #include #include "usuals.h" #include "compat.h" #include "sock_any.h" #include "stringx.h" #define SP_LEGACY_OPTIONS #include "smtppass.h" /* ----------------------------------------------------------------------- * STRUCTURES */ enum { ACTION_DROP, ACTION_BOUNCE, ACTION_PASS }; typedef struct clstate { /* Settings ------------------------------- */ struct sockaddr_any clamaddr; /* Address for connecting to clamd */ const char* clamname; const char* directory; /* The directory for temp files */ const char* virusaction; /* Program to run when event occurs */ int action; /* Which action to take on a virus */ int quarantine; /* Leave virus files in temp dir */ int debug_files; /* Leave all files in temp dir */ const char* header; /* A header to include in emails */ } clstate_t; typedef struct clctx { spctx_t sp; /* The main sp context */ spio_t clam; /* Connection to clamd */ } clctx_t; /* ----------------------------------------------------------------------- * STRINGS */ #define CRLF "\r\n" #define SMTP_DATAVIRUSOK "250 Virus Detected; Discarded Email" CRLF #define SMTP_DATAVIRUS "550 Virus Detected; Content Rejected" CRLF #define CLAM_OK "OK" #define CLAM_ERROR "ERROR" #define CLAM_FOUND "FOUND" #define CLAM_SCAN "SCAN " #ifdef USE_CLAM_SESSION #define CONNECT_RSP "PONG" #define CLAM_CONNECT "SESSION\nPING\n" #define CLAM_DISCONNECT "END\n" #endif #define DEFAULT_CONFIG CONF_PREFIX "/clamsmtpd.conf" #define DEFAULT_CLAMAV "/var/run/clamav/clamd" #define DEFAULT_HEADER "X-Virus-Scanned: ClamAV using ClamSMTP" #define VIRUS_HEADER "X-Virus-Infected: Virus Detected!" /* ----------------------------------------------------------------------- * CONFIGURATION OPTIONS * * - Be sure your option is relevant to this file. Certain options * should go into smtppass.c * - Add field to clstate_t structure (above) * - Add default (above) and set in main (below). Required options * are difficult to implement under the current structure. It's * better to have a sane default. * - Add config keyword (below) * - Parsing and validation of option in cb_parse_option (below) * - Document in the sample doc/clamsmtpd.conf * - Document in doc/clamsmtpd.conf.5 */ #define CFG_CLAMADDR "ClamAddress" #define CFG_DIRECTORY "TempDirectory" #define CFG_HEADER "Header" #define CFG_SCANHEADER "ScanHeader" #define CFG_HEADER "Header" #define CFG_BOUNCE "Bounce" #define CFG_ACTION "Action" #define CFG_QUARANTINE "Quarantine" #define CFG_DEBUGFILES "DebugFiles" #define CFG_VIRUSACTION "VirusAction" #define VAL_BOUNCE "bounce" #define VAL_DROP "drop" #define VAL_PASS "pass" /* ----------------------------------------------------------------------- * GLOBALS */ clstate_t g_clstate; /* ----------------------------------------------------------------------- * FORWARD DECLARATIONS */ static void usage(); static int connect_clam(clctx_t* ctx); static int disconnect_clam(clctx_t* ctx); static int virus_action(clctx_t* ctx, const char* virus); static int clam_scan_file(clctx_t* ctx, const char** virus); /* ----------------------------------------------------------------------- * SIMPLE MACROS */ /* ---------------------------------------------------------------------------------- * STARTUP ETC... */ #ifndef HAVE___ARGV char** __argv; #endif int main(int argc, char* argv[]) { const char* configfile = DEFAULT_CONFIG; const char* pidfile = NULL; int dbg_level = -1; int warnargs = 0; int ch = 0; int r; char* t; #ifndef HAVE___ARGV __argv = argv; #endif /* Configuration defaults */ memset(&g_clstate, 0, sizeof(g_clstate)); g_clstate.directory = _PATH_TMP; /* We need the default to parse into a useable form, so we do this: */ r = cb_parse_option(CFG_CLAMADDR, DEFAULT_CLAMAV); ASSERT(r == 1); sp_init("clamsmtpd"); /* COMPAT: Setup a default header */ sp_parse_option(CFG_HEADER, DEFAULT_HEADER); /* * We still accept our old arguments for compatibility reasons. * We fill them into the spstate structure directly */ /* Parse the arguments nicely */ while((ch = getopt(argc, argv, "bc:d:D:f:h:l:m:p:qt:v")) != -1) { switch(ch) { /* COMPAT: Actively reject messages */ case 'b': if((r = cb_parse_option(CFG_BOUNCE, "on")) < 0) usage(); ASSERT(r == 1); warnargs = 1; break; /* COMPAT: Change the CLAM socket */ case 'c': if((r = cb_parse_option(CFG_CLAMADDR, "on")) < 0) usage(); ASSERT(r == 1); warnargs = 1; break; /* Don't daemonize */ case 'd': dbg_level = strtol(optarg, &t, 10); if(*t) /* parse error */ errx(1, "invalid debug log level"); dbg_level += LOG_ERR; break; /* COMPAT: The directory for the files */ case 'D': if((r = sp_parse_option(CFG_DIRECTORY, optarg)) < 0) usage(); ASSERT(r == 1); warnargs = 1; break; /* The configuration file */ case 'f': configfile = optarg; break; /* COMPAT: The header to add */ case 'h': if((r = cb_parse_option(CFG_HEADER, optarg)) < 0) usage(); ASSERT(r == 1); warnargs = 1; break; /* COMPAT: Change our listening port */ case 'l': if((r = sp_parse_option("Listen", optarg)) < 0) usage(); ASSERT(r == 1); warnargs = 1; break; /* COMPAT: The maximum number of threads */ case 'm': if((r = sp_parse_option("MaxConnections", optarg)) < 0) usage(); ASSERT(r == 1); warnargs = 1; break; /* Write out a pid file */ case 'p': pidfile = optarg; break; /* COMPAT: The timeout */ case 't': if((r = sp_parse_option("TimeOut", optarg)) < 0) usage(); ASSERT(r == 1); warnargs = 1; break; /* COMPAT: Leave virus files in directory */ case 'q': if((r = cb_parse_option(CFG_QUARANTINE, "on")) < 0) usage(); ASSERT(r == 1); warnargs = 1; break; /* Print version number */ case 'v': printf("clamsmtpd (version %s)\n", VERSION); printf(" (config: %s)\n", DEFAULT_CONFIG); exit(0); break; /* COMPAT: Leave all files in the tmp directory */ case 'X': if((r = cb_parse_option(CFG_DEBUGFILES, "on")) < 0) usage(); ASSERT(r == 1); warnargs = 1; break; /* Usage information */ case '?': default: usage(); break; } } argc -= optind; argv += optind; if(argc > 1) usage(); if(argc == 1) { /* COMPAT: The out address */ if((r = sp_parse_option("OutAddress", argv[0])) < 0) usage(); ASSERT(r == 1); warnargs = 1; } if(warnargs) warnx("please use configuration file instead of command-line flags: %s", configfile); r = sp_run(configfile, pidfile, dbg_level); sp_done(); return r; } static void usage() { fprintf(stderr, "usage: clamsmtpd [-d debuglevel] [-f configfile] [-p pidfile]\n"); fprintf(stderr, " clamsmtpd -v\n"); exit(2); } /* ---------------------------------------------------------------------------------- * SP CALLBACKS */ int cb_check_data(spctx_t* sp) { int r = 0; const char* virus; clctx_t* ctx = (clctx_t*)sp; /* ClamAV doesn't like empty files */ if((r = sp_cache_data(sp)) > 0) { /* Connect to clamav */ if(!spio_valid(&(ctx->clam))) r = connect_clam(ctx); if(r != -1) r = clam_scan_file(ctx, &virus); } switch(r) { /* * There was an error tell the client. We haven't notified * the server about any of this yet */ case -1: if(sp_fail_data(sp, NULL) == -1) return -1; break; /* * No virus was found. Now we initiate a connection to the server * and transfer the file to it. */ case 0: if(sp_done_data(sp, g_clstate.header) == -1) return -1; break; /* * A virus was found, normally we just drop the email. But if * requested we can send a simple message back to our client. * The server doesn't know data was ever sent, and the client can * choose to reset the connection to reuse it if it wants. */ case 1: /* Any special post operation actions on the virus */ virus_action(ctx, virus); switch(g_clstate.action) { case ACTION_DROP: if(sp_fail_data(sp, SMTP_DATAVIRUSOK) == -1) return -1; break; case ACTION_BOUNCE: if(sp_fail_data(sp, SMTP_DATAVIRUS) == -1) return -1; break; case ACTION_PASS: if(sp_done_data(sp, VIRUS_HEADER) == -1) return -1; break; default: ASSERT(0 && "Invalid action"); break; } break; default: ASSERT(0 && "Invalid clam_scan_file return value"); break; }; return 0; } int cb_parse_option(const char* name, const char* value) { if(strcasecmp(CFG_CLAMADDR, name) == 0) { if(sock_any_pton(value, &(g_clstate.clamaddr), SANY_OPT_DEFLOCAL) == -1) errx(2, "invalid " CFG_CLAMADDR " socket name: %s", value); g_clstate.clamname = value; return 1; } /* COMPAT: Parse old header option */ else if(strcasecmp(CFG_SCANHEADER, name) == 0) { warnx("please use \"Header\" option instead of \"ScanHeader\""); g_clstate.header = trim_start(value); if(strlen(g_clstate.header) == 0) g_clstate.header = NULL; } else if(strcasecmp(CFG_HEADER, name) == 0) { g_clstate.header = trim_start(value); if(strlen(g_clstate.header) == 0) g_clstate.header = NULL; return 1; } else if(strcasecmp(CFG_DIRECTORY, name) == 0) { g_clstate.directory = value; return 1; } /* COMPAT: Subsumed by the 'Action' option */ else if(strcasecmp(CFG_BOUNCE, name) == 0) { int bounce = strtob(value); if(bounce == -1) errx(2, "invalid value for " CFG_BOUNCE); if(bounce) g_clstate.action = ACTION_BOUNCE; warnx("please use \"Action\" option instead of \"Bounce\""); return 1; } else if(strcasecmp(CFG_ACTION, name) == 0) { if(strcasecmp(VAL_BOUNCE, value) == 0) g_clstate.action = ACTION_BOUNCE; else if(strcasecmp(VAL_DROP, value) == 0) g_clstate.action = ACTION_DROP; else if(strcasecmp(VAL_PASS, value) == 0) g_clstate.action = ACTION_PASS; else errx(2, "invalid value for " CFG_ACTION); return 1; } else if(strcasecmp(CFG_QUARANTINE, name) == 0) { if((g_clstate.quarantine = strtob(value)) == -1) errx(2, "invalid value for " CFG_QUARANTINE); return 1; } else if(strcasecmp(CFG_DEBUGFILES, name) == 0) { if((g_clstate.debug_files = strtob(value)) == -1) errx(2, "invalid value for " CFG_DEBUGFILES); return 1; } else if(strcasecmp(CFG_VIRUSACTION, name) == 0) { g_clstate.virusaction = value; return 1; } return 0; } spctx_t* cb_new_context() { clctx_t* ctx = (clctx_t*)calloc(1, sizeof(clctx_t)); if(!ctx) { sp_messagex(NULL, LOG_CRIT, "out of memory"); return NULL; } /* Initial preparation of the structure */ spio_init(&(ctx->clam), "CLAMAV"); return &(ctx->sp); } void cb_del_context(spctx_t* sp) { clctx_t* ctx = (clctx_t*)sp; int x; ASSERT(sp); disconnect_clam(ctx); free(ctx); if(g_clstate.virusaction) { /* Cleanup any old actions */ while(waitpid(-1, &x, WNOHANG) > 0) ; } } /* ---------------------------------------------------------------------------------- * CLAM AV */ static int connect_clam(clctx_t* ctx) { int ret = 0; spctx_t* sp = &(ctx->sp); ASSERT(ctx); ASSERT(!spio_valid(&(ctx->clam))); if(spio_connect(sp, &(ctx->clam), &(g_clstate.clamaddr), g_clstate.clamname) == -1) RETURN(-1); spio_read_junk(sp, &(ctx->clam)); #ifdef USE_CLAM_SESSION /* Send a session and a check header to ClamAV */ if(spio_write_data(sp, &(ctx->clam), "SESSION\n") == -1) RETURN(-1); spio_read_junk(sp, &(ctx->clam)); /* if(spio_write_data(sp, &(ctx->clam), "PING\n") == -1 || spio_read_line(sp, &(ctx->clam), CLIO_DISCARD | CLIO_TRIM) == -1) RETURN(-1); if(strcmp(sp->line, CONNECT_RESPONSE) != 0) { sp_message(sp, LOG_ERR, "clamd sent an unexpected response: %s", ctx->line); RETURN(-1); } */ #endif cleanup: if(ret < 0 && spio_valid(&(ctx->clam))) spio_disconnect(sp, &(ctx->clam)); return ret; } static int disconnect_clam(clctx_t* ctx) { spctx_t* sp = &(ctx->sp); if(!spio_valid(&(ctx->clam))) return 0; #ifdef USE_CLAM_SESSION if(spio_write_data(sp, &(ctx->clam), CLAM_DISCONNECT) != -1) spio_read_junk(sp, &(ctx->clam)); #endif spio_disconnect(sp, &(ctx->clam)); return 0; } static int clam_scan_file(clctx_t* ctx, const char** virus) { int len, x; int ret = 0; char* line; spctx_t* sp = &(ctx->sp); /* Connect to clamav */ if(!spio_valid(&(ctx->clam))) { if(connect_clam(ctx) == -1) RETURN(-1); } ASSERT(ctx && virus); *virus = NULL; /* Needs to be long enough to hold path names */ ASSERT(SP_LINE_LENGTH > MAXPATHLEN + 32); line = ctx->clam.line; strcpy(line, CLAM_SCAN); strcat(line, sp->cachename); strcat(line, "\n"); if(spio_write_data(sp, &(ctx->clam), line) == -1) RETURN(-1); len = spio_read_line(sp, &(ctx->clam), SPIO_DISCARD | SPIO_TRIM); if(len == 0) { sp_messagex(sp, LOG_ERR, "clamd disconnected unexpectedly"); RETURN(-1); } if(is_last_word(line, CLAM_OK, KL(CLAM_OK))) { sp_add_log(sp, "status=", "CLEAN"); sp_messagex(sp, LOG_DEBUG, "no virus"); RETURN(0); } /* * When a virus is found the returned line from * clamd looks something like this: * * /path/to/virus: Virus.XXXX FOUND */ if(is_last_word(line, CLAM_FOUND, KL(CLAM_FOUND))) { x = strlen(sp->cachename); /* A little sanity check ... */ if(len > x + KL(CLAM_FOUND)) { /* Remove the "FOUND" from the end */ line[len - KL(CLAM_FOUND)] = 0; /* Skip the filename returned, and colon */ line += x + 1; line = trim_space(line); sp_messagex(sp, LOG_DEBUG, "found virus: %s", line); sp_add_log(sp, "status=VIRUS:", line); *virus = line; } else { sp_messagex(sp, LOG_WARNING, "couldn't parse virus name from clamd response: %s", line); sp_add_log(sp, "status=", "VIRUS"); *virus = "Unparsable.Virus.Name"; } RETURN(1); } if(is_last_word(line, CLAM_ERROR, KL(CLAM_ERROR))) { sp_messagex(sp, LOG_ERR, "clamav error: %s", line); sp_add_log(sp, "status=", "CLAMAV-ERROR"); RETURN(-1); } sp_add_log(sp, "status=", "CLAMAV-ERROR"); sp_messagex(sp, LOG_ERR, "unexepected response from clamd: %s", line); RETURN(-1); cleanup: #ifndef USE_CLAM_SESSION disconnect_clam(ctx); #endif return ret; } /* ---------------------------------------------------------------------------------- * TEMP FILE HANDLING */ static int virus_action(clctx_t* ctx, const char* virus) { char qfilename[MAXPATHLEN]; spctx_t* sp = &(ctx->sp); char* t; int i; pid_t pid; if(g_clstate.quarantine) { strlcpy(qfilename, g_clstate.directory, MAXPATHLEN); if (qfilename[strlen(qfilename) - 1] != '/') strlcat(qfilename, "/", MAXPATHLEN); strlcat(qfilename, "virus.", MAXPATHLEN); /* Points to null terminator */ t = qfilename + strlen(qfilename); /* * Yes, I know we're using mktemp. And yet we're doing it in * a safe manner due to the link command below not overwriting * existing files. */ for(;;) { /* Null terminate off the ending, and replace with X's for mktemp */ *t = 0; strlcat(qfilename, "XXXXXX", MAXPATHLEN); if(!mktemp(qfilename)) { sp_message(sp, LOG_ERR, "couldn't create quarantine file name"); return -1; } /* Try to link the file over to the temp */ if(link(sp->cachename, qfilename) == -1) { /* We don't want to allow race conditions */ if(errno == EEXIST) { sp_message(sp, LOG_WARNING, "race condition when quarantining virus file: %s", qfilename); continue; } sp_message(sp, LOG_ERR, "couldn't quarantine virus file"); return -1; } break; } sp_messagex(sp, LOG_INFO, "quarantined virus file as: %s", qfilename); } if(g_clstate.virusaction != NULL) { /* Cleanup any old actions */ while(waitpid(-1, &i, WNOHANG) > 0) ; sp_messagex(sp, LOG_DEBUG, "executing virus action: %s", g_clstate.virusaction); switch(pid = fork()) { case -1: sp_message(sp, LOG_ERR, "couldn't fork for virus action"); return -1; /* The child */ case 0: /* Close std descriptors */ for(i = 0; i <= 2; i++) close(i); /* Set the environment variables */ sp_setup_forked(sp, 0); /* When quarantining we can hand the file name off */ if(g_clstate.quarantine) setenv("EMAIL", qfilename, 1); if(virus) setenv("VIRUS", virus, 1); /* And execute the program */ execl("/bin/sh", "sh", "-c", g_clstate.virusaction, NULL); /* If that returned then there was an error, but there's * not much we can do about it. */ _exit(1); break; }; } return 0; } clamsmtp-1.10/src/clamsmtpd.h0000644000175000017500000000334510626145312013125 00000000000000/* * Copyright (c) 2004, Stefan Walter * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the * above copyright notice, this list of conditions and * the following disclaimer in the documentation and/or * other materials provided with the distribution. * * The names of contributors to this software may not be * used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * * CONTRIBUTORS * Stef Walter * */ #ifndef __CLAMSMTPD_H__ #define __CLAMSMTPD_H__ #endif /* __CLAMSMTPD_H__ */ clamsmtp-1.10/doc/0000777000175000017500000000000011032211510011007 500000000000000clamsmtp-1.10/doc/Makefile.am0000644000175000017500000000033411032211361012763 00000000000000 man_MANS = clamsmtpd.8 clamsmtpd.conf.5 EXTRA_DIST = $(man_MANS) clamsmtpd.conf # Simple way to make docs html: perl man2html.pl clamsmtpd.8 > clamsmtpd.html perl man2html.pl clamsmtpd.conf.5 > clamsmtpd.conf.html clamsmtp-1.10/doc/Makefile.in0000644000175000017500000002714311032211365013007 00000000000000# Makefile.in generated by automake 1.10.1 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, # 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. # This Makefile.in is free software; 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IN NO EVENT SHALL THE .\" COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, .\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, .\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS .\" OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED .\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, .\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF .\" THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH .\" DAMAGE. .\" .\" .\" CONTRIBUTORS .\" Stef Walter .\" .Dd September, 2004 .Dt clamsmtpd 8 .Os clamsmtp .Sh NAME .Nm clamsmtpd .Nd an SMTP server for scanning viruses via clamd .Sh SYNOPSIS .Nm .Op Fl d Ar level .Op Fl f Ar configfile .Op Fl p Ar pidfile .Nm .Fl v .Sh DESCRIPTION .Nm is an SMTP filter that allows you to check for viruses using the ClamAV anti-virus software. It accepts SMTP connections and forwards the SMTP commands and responses to another SMTP server. .Pp The DATA email body is intercepted and scanned before forwarding. By default email with viruses are dropped silently and logged without any additional action taken. .Pp .Nm aims to be lightweight and simple rather than have a myriad of options. The options it does have are configured by editing the .Xr clamsmtpd.conf 5 file. See the man page for .Xr clamsmtpd.conf 5 for more info on the default location of the configuration file. .Sh OPTIONS Previous versions had more options. These still work for now but have equivalents in .Xr clamsmtpd.conf 5 and are not documented here. The options are as follows. .Bl -tag -width Fl .It Fl d Don't detach from the console and run as a daemon. In addition the .Ar level argument specifies what level of error messages to display. 0 being the least, 4 the most. .It Fl f .Ar configfile specifies an alternate location for the .Nm configuration file. See .Xr clamsmtpd.conf 5 for more details on where the configuration file is located by default. .It Fl p .Ar pidfile specifies a location for the a process id file to be written to. This file contains the process id of .Nm and can be used to stop the daemon. .It Fl v Prints the clamsmtp version number and exits. .El .Sh LOGGING .Nm logs to .Xr syslogd by default under the 'mail' facility. You can also output logs to the console using the .Fl d option. .Sh LOOPBACK FEATURE In some cases it's advantageous to consolidate the virus scanning and filtering for several mail servers on one machine. .Nm allows this by providing a loopback feature to connect back to the IP that an SMTP connection comes in from. .Pp To use this feature specify only a port number (no IP address) for the .Ar OutAddress setting in the configuration file. This will cause .Nm to pass the email back to the said port on the incoming IP address. .Pp Make sure the .Ar MaxConnections setting is set high enough to handle the mail from all the servers without refusing connections. .Sh TRANSPARENT PROXY FEATURE A transparent proxy is a configuration on a gateway that routes certain types of traffic through a proxy server without any changes on the client computers. .Nm has support for transparent proxying of SMTP traffic by enabling the .Ar TransparentProxy setting. This type of setup usually involves firewall rules which redirect traffic to .Nm and the setup varies from OS to OS. The SMTP traffic will be forwarded to it's original destination after being scanned. .Pp When doing transparent proxying for outgoing email it's probably a good idea to turn on bounce notifications using the .Ar Action: bounce setting. Also note that some features (such as SSL/TLS) will not be available when going through the transparent proxy. .Pp Make sure that the .Ar MaxConnections setting is set high enough for your transparent proxying. Because .Nm is not being used as a filter inside a queue, which usually throttles the amount of email going through, this setting may need to be higher than usual. .Sh VIRUS ACTIONS Using the .Ar VirusAction option you can run a script or program whenever a virus is found. This may be handy in certain circumstances but it has several drawbacks. For one, the performance of the virus filtering will take a hit, perhaps DOS'ing your machine under heavy load. Secondly as with running any program there are security implications to be considered. .Pp .Please consider the above carefully before implementing a virus action. .Pp The script is run without its output being logged, or return value being checked. Because of this you should test it thoroughly. Make sure it runs without problems under the user that .Xr clamsmtpd 8 is being run as. .Pp Various environment variables will be present when your script is run. You may need to escape them properly before use in your favorite scripting language. Failure to do this could lead to a REMOTE COMPROMISE of your machine. .Bl -tag -width Fl .It Ar CLIENT The network address of the SMTP client connected. .It Ar EMAIL When the .Ar Quarantine option is enabled, this specifies the file that the virus was saved to. .It Ar RECIPIENTS The email addresses of the email recipients. These are specified one per line, in standard address format. .It Ar REMOTE If .Nm is being used to filter email between SMTP servers, then this is the IP address of the original client. In order for this information to be present (a) the SMTP client (sending server) must an send an XFORWARD command and (b) the SMTP server (receiving server) must accept that XFORWARD command without error. .It Ar REMOTE_HELO If .Nm is being used to filter email between SMTP servers, then this is the HELO/EHLO banner of the original client. In order for this information to be present (a) the SMTP client (sending server) must an send an XFORWARD command and (b) the SMTP server (receiving server) must accept that XFORWARD command without error. .It Ar SENDER The email address for the sender of the email. .It Ar SERVER The network address of the SMTP server we're connected to. .It Ar TMPDIR The path to the temp directory in use. This is the same as the .Ar TempDirectory option. .It Ar VIRUS The name of the virus found. .El .Sh SECURITY There's no reason to run this daemon as root. It is meant as a filter and should listen on a high TCP port. It's probably a good idea to run it using the same user as the .Xr clamd 8 daemon. This way the temporary files it writes are accessible to .Xr clamd 8 .Pp Care should be taken with the directory that .Nm writes its temporary files to. In order to be secure, it should not be a world writeable location. Specify the directory using the .Ar TempDirectory setting. .Pp When using the .Ar VirusAction option make sure you understand the security issues involved. Unescaped environment variables can lead to execution of arbitrary shell commands on your machine. .Pp If running .Nm on a publicly accessible IP address or without a firewall please be sure to understand all the possible security issues. This is especially true if the loopback feature is used (see above). .Sh SEE ALSO .Xr clamsmtpd.conf 5 .Xr clamd 8 , .Xr clamdscan 1 .Sh AUTHOR .An Stef Walter Aq stef@memberwebs.com clamsmtp-1.10/doc/clamsmtpd.conf.50000644000175000017500000001500010626145237013741 00000000000000.\" .\" Copyright (c) 2004, Stefan Walter .\" All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" .\" * Redistributions of source code must retain the above .\" copyright notice, this list of conditions and the .\" following disclaimer. .\" * Redistributions in binary form must reproduce the .\" above copyright notice, this list of conditions and .\" the following disclaimer in the documentation and/or .\" other materials provided with the distribution. .\" * The names of contributors to this software may not be .\" used to endorse or promote products derived from this .\" software without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS .\" "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT .\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS .\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE .\" COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, .\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, .\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS .\" OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED .\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, .\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF .\" THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH .\" DAMAGE. .\" .\" .\" CONTRIBUTORS .\" Stef Walter .\" .Dd September, 2004 .Dt clamsmtpd.conf 5 .Os clamsmtp .Sh NAME .Nm clamsmtpd.conf .Nd the configuration file for .Xr clamsmtpd 8 .Sh DESCRIPTION .Xr clamsmtpd 8 reads a configuration file when starting up. The location of the file is dependent on how you compiled clamsmtp but it should usually be in either the .Pa /usr/local/etc/ or .Pa /etc/ directories. If .Xr clamsmtpd 8 does not find its configuration file it'll print a warning when it starts up along with the location it's expecting to find it in. You can also specify a different location for a config file by passing the .Fl f argument to .Xr clamsmtpd 8 .Pp The settings are specified one per line. The setting names come first, followed by a colon and then the value. Comments start with the '#' character on a line of their own. Whitespace is ignored at the beginning of line, end of line and around the colons. .Pp A sample configuration file can be found in the .Pa doc/ directory of the clamsmtp distribution. .Sh SETTINGS The various settings are as follows: .Bl -tag -width Fl .It Ar Action This option controls what .Xr clamsmtpd 8 does when it finds a virus. The options are: .Bl -inset .It Ar bounce Bounce the email. In most cases this is not a good idea since many viruses spoof sender addresses. .It Ar drop Silently drop the email. Recommended. .It Ar pass Pass on the email. Inserts an 'X-Virus-Infected' header. .El .Pp [ Default: drop ] .It Ar ClamAddress Specifies the address to connect to .Xr clamd 8 on. See syntax of addresses below. .Pp [ Default: .Pa /var/run/clamav/clamd ] .It Ar Header A header to add to scanned messages. Put an empty value to suppress adding a header. You can include the following special formatting characters in the string to include special values: .Bl -inset .It Ar %i Client IP Address .It Ar %l Local IP Address .It Ar %d Current Date .El .Pp You can also include the standard \\r or \\n escapes. .Pp [ Default: 'X-Virus-Scanned: ClamAV using ClamSMTP' ] .It Ar KeepAlives On slow connections the server will sometimes timeout before .Xr clamsmtpd 8 is finished scanning the file. This option sends NOOP's to the server to keep the connection alive. Specify the number of seconds, or 0 to disable. .Pp [ Default: 0 ] .It Ar Listen The address and port to listen for SMTP connections on. See syntax of addresses below. .Pp [ Default: port 10025 on all local IP addresses ] .It Ar PidFile Specifies a location for the a process id file to be written to. This file contains the process id of .Nm and can be used to stop the daemon. If the .Fl p argument is passed on the command line, then this setting will be ignored. .Pp [ Default: none ] .It Ar Quarantine Quarantine files that contain viruses by leaving them in the .Ar TempDirectory directory. The file names look like this (where X is a random character or number): .Pa virus.XXXXXX .Pp [ Default: off ] .It Ar MaxConnections Specifies the maximum number of connections to accept at once. .Xr clamd 8 also needs to be setup to accept at least this number of connections. .Pp [ Default: 64 ] .It Ar OutAddress The address of the SMTP server to send email to once it's been scanned. See syntax of addreses below. .Pp [ Required ] .It Ar TempDirectory The directory to write temp files to. This directory needs to be accessible to both .Xr clamd 8 and .Xr clamsmtpd 8 .Pp [ Default: .Pa /tmp ] .It Ar TimeOut The number of seconds to wait while reading data from network connections. .Pp [ Default: 180 seconds ] .It Ar TransparentProxy This option enables transparent proxy support, which allows you to route all SMTP traffic that's going through a gateway through clamsmtp which will then send it on to its final destination. This setup usually involves firewall rules which redirect traffic to clamsmtp, and the setup varies from OS to OS. .Pp [ Default: off ] .It Ar User The user to run as. If this option is specified then .Xr clamsmtpd 8 must be started as root. It will then drop root privileges and run as the specified user. The user can either be a name or a numerical user id. .Pp [ Optional ] .It Ar VirusAction This is a command to run when a virus is found. See the VIRUS ACTION section in .Xr clamsmtpd 8 for a discussion of this option. .Pp [ Default: off ] .It Ar XClient Send an XCLIENT command to the receiving server. This is useful for forwarding client addresses and connection info to servers that support this feature. .Pp [ Default: off ] .El .Sh ADDRESSES Addresses can be specified in multiple formats: .Bl -bullet .It Unix local addresses can be specified by specifying their full path. (ie: '/var/run/clamav/clamd'). .It IP addresses can be specified using dotted notation with a colon before the port number (ie: '127.0.0.1:3310'). .It IPv6 addresses are implemented but disabled. The code needs testing. .El .Sh SEE ALSO .Xr clamsmtpd 8 .Sh AUTHOR .An Stef Walter Aq stef@memberwebs.com clamsmtp-1.10/doc/clamsmtpd.conf0000644000175000017500000000304710577653460013615 00000000000000# ------------------------------------------------------------------------------ # SAMPLE CLAMSMTPD CONFIG FILE # ------------------------------------------------------------------------------ # # - Comments are a line that starts with a # # - All the options are found below with sample settings # The address to send scanned mail to. # This option is required unless TransparentProxy is enabled OutAddress: 10026 # The maximum number of connection allowed at once. # Be sure that clamd can also handle this many connections #MaxConnections: 64 # Amount of time (in seconds) to wait on network IO #TimeOut: 180 # Keep Alives (ie: NOOP's to server) #KeepAlives: 0 # Send XCLIENT commands to receiving server #XClient: off # Address to listen on (defaults to all local addresses on port 10025) #Listen: 0.0.0.0:10025 # The address clamd is listening on #ClamAddress: /var/run/clamav/clamd # A header to add to all scanned email #Header: X-Virus-Scanned: ClamAV using ClamSMTP # Directory for temporary files #TempDirectory: /tmp # What to do when we see a virus (use 'bounce' or 'pass' or 'drop' #Action: drop # Whether or not to keep virus files #Quarantine: off # Enable transparent proxy support #TransparentProxy: off # User to switch to #User: clamav # Virus actions: There's an option to run a script every time a virus is found. # !IMPORTANT! This can open a hole in your server's security big enough to drive # farm vehicles through. Be sure you know what you're doing. !IMPORTANT! #VirusAction: /path/to/some/script.sh