dnsproxy-1.16/Makefile.in010064400101230000000000000021371132340034700144060ustar00arminwheel# $Id: Makefile.in,v 1.16 2010/01/13 17:20:39 armin Exp $ prefix=@prefix@ exec_prefix=@exec_prefix@ bindir=@bindir@ sbindir=@sbindir@ mandir=@mandir@ CC=@CC@ CFLAGS=@CFLAGS@ -I. @DEFS@ -DVERSION="\"@PACKAGE_VERSION@\"" INSTALL=@INSTALL@ LDFLAGS=@LDFLAGS@ LIBS=@LIBS@ MAN=@MAN@ NROFF=@NROFF@ OBJS=dnsproxy.o daemon.o hash.o internal.o log.o parse.o stats.o @SET_MAKE@ all: dnsproxy dnsproxy.cat1 install: all $(INSTALL) -s -m 555 dnsproxy $(sbindir) $(INSTALL) -m 444 dnsproxy.cat1 $(mandir)/cat1/dnsproxy.0 dnsproxy: $(OBJS) $(CC) $(LDFLAGS) -o dnsproxy $(OBJS) $(LIBS) dnsproxy.cat1: dnsproxy.1 $(NROFF) -$(MAN) dnsproxy.1 > dnsproxy.cat1 clean: -rm -f dnsproxy $(OBJS) dnsproxy.cat1 dnsproxy.core distclean: clean -rm -f Makefile config.log config.status config.h cvsclean: clean -rm -f Makefile config.log config.status config.h -rm -f configure config.h.in config.h.in~ -rm -f README dnsproxy.1 -rm -rf autom4te.cache DISTDIR=@PACKAGE_TARNAME@-@PACKAGE_VERSION@ dist: -rm -f $(DISTDIR).tar $(DISTDIR).tar.gz -tar -I MANIFEST -s '/^/$(DISTDIR)\//' -cvf $(DISTDIR).tar -gzip -9 $(DISTDIR).tar dnsproxy-1.16/README010064400101230000000000000111051132340152700132150ustar00arminwheel----------------------------------------------------------------------------- DNSPROXY 1.16 The dnsproxy daemon is a proxy for DNS queries. It forwards these queries to two previously configured nameservers: one for authoritative queries and another for recursive queries. The received answers are sent back to the client unchanged. No local caching is done. Primary motivation for this project was the need to replace Bind servers with djbdns in an ISP environment. These servers get recursive queries from customers and authoritative queries from outside at the same IP address. Now it is possible to run dnscache and tinydns on the same machine with queries dispatched by dnsproxy. Other scenarios are firewalls where you want to proxy queries to the real servers in your DMZ. Or internal nameservers behind firewalls, or... Some features: - Secure. Runs chrooted and without root privileges. - Fast. Able to process hundreds of queries per second. - Easy to setup. Simple configuration file. Source code is available at http://www.wolfermann.org/dnsproxy.html ----------------------------------------------------------------------------- INSTALLATION If you run any current UNIX-like operating system, only the following steps should be necessary: ./configure make make install Unlike previous releases the 1.16 version does not include the libevent library. It should now also be available from your operating systems ports/packages/rpm/deb repository or as always from the source at http://www.monkey.org/~provos/libevent/. If it is not found by the configure script you may specify the directory prefix of your libevent installation with: ./configure --with-libevent=/usr/local ----------------------------------------------------------------------------- CONFIGURATION At startup dnsproxy reads a configuration file specified via the -c option or at the default location of /etc/dnsproxy.conf. The syntax of this configuration file is of the form "keyword value" and looks like: authoritative 127.0.0.1 # Authoritative server. Required. authoritative-port 53001 # It's port. Defaults to 53. authoritative-timeout 10 # Seconds to wait for answers. recursive 127.0.0.1 # Recursive server. Required. recursive-port 53002 # It's port. Defaults to 53. recursive-timeout 90 # Seconds to wait for answers. listen 192.168.168.1 # Dnsproxy's listen address. port 53 # Dnsproxy's port address. chroot /var/empty # Directory to chroot dnsproxy. user nobody # Unprivileged user to run as. internal 192.168.168.0/24 # Only internal IP addresses are internal 127.0.0.1 # allowed to do recursive queries. statistics 3600 # Print statistics every hour. ----------------------------------------------------------------------------- COMPATIBILITY This package should build and run on OpenBSD, FreeBSD, Solaris, Linux. Other POSIX environments should work also. Please drop me a mail at dnsproxy@wolfermann.org if you run dnsproxy on an unlisted system. ----------------------------------------------------------------------------- LICENSE This software is released under an OSI approved MIT-style license: Copyright (c) 2003,2004,2005,2010 Armin Wolfermann. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ----------------------------------------------------------------------------- $Id: README.in,v 1.17 2010/01/13 17:20:39 armin Exp $ dnsproxy-1.16/config.h.in010064400101230000000000000047201132340152100143570ustar00arminwheel/* config.h.in. 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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 $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_CC="${ac_tool_prefix}cc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi CC=$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 "$ac_cv_prog_CC"; then ac_ct_CC=$CC # 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_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; 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 $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_CC="cc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi ac_ct_CC=$ac_cv_prog_ac_ct_CC if test -n "$ac_ct_CC"; then echo "$as_me:$LINENO: result: $ac_ct_CC" >&5 echo "${ECHO_T}$ac_ct_CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi CC=$ac_ct_CC else CC="$ac_cv_prog_CC" 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 $as_executable_p "$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 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 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 $as_executable_p "$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$ac_exec_ext" >&5 break 2 fi done done fi fi CC=$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=$CC for ac_prog in cl do # Extract the first word of "$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; 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 $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_CC="$ac_prog" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi ac_ct_CC=$ac_cv_prog_ac_ct_CC if test -n "$ac_ct_CC"; then echo "$as_me:$LINENO: result: $ac_ct_CC" >&5 echo "${ECHO_T}$ac_ct_CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi test -n "$ac_ct_CC" && break done CC=$ac_ct_CC fi fi test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH See \`config.log' for more details." >&5 echo "$as_me: error: no acceptable C compiler found in \$PATH See \`config.log' for more details." >&2;} { (exit 1); exit 1; }; } # Provide some information about the compiler. echo "$as_me:$LINENO:" \ "checking for C compiler version" >&5 ac_compiler=`set X $ac_compile; echo $2` { (eval echo "$as_me:$LINENO: \"$ac_compiler --version &5\"") >&5 (eval $ac_compiler --version &5) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } { (eval echo "$as_me:$LINENO: \"$ac_compiler -v &5\"") >&5 (eval $ac_compiler -v &5) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } { (eval echo "$as_me:$LINENO: \"$ac_compiler -V &5\"") >&5 (eval $ac_compiler -V &5) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ int main () { ; return 0; } _ACEOF ac_clean_files_save=$ac_clean_files ac_clean_files="$ac_clean_files a.out a.exe b.out" # Try to create an executable without -o first, disregard a.out. # It will help us diagnose broken compilers, and finding out an intuition # of exeext. echo "$as_me:$LINENO: checking for C compiler default output file name" >&5 echo $ECHO_N "checking for C compiler default output file name... $ECHO_C" >&6 ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'` if { (eval echo "$as_me:$LINENO: \"$ac_link_default\"") >&5 (eval $ac_link_default) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; then # Find the output, starting from the most likely. This scheme is # not robust to junk in `.', hence go to wildcards (a.*) only as a last # resort. # Be careful to initialize this variable, since it used to be cached. # Otherwise an old cache value of `no' led to `EXEEXT = no' in a Makefile. ac_cv_exeext= # b.out is created by i960 compilers. for ac_file in a_out.exe a.exe conftest.exe a.out conftest a.* conftest.* b.out do test -f "$ac_file" || continue case $ac_file in *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) ;; conftest.$ac_ext ) # This is the source file. ;; [ab].out ) # We found the default executable, but exeext='' is most # certainly right. break;; *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` # FIXME: I believe we export ac_cv_exeext for Libtool, # but it would be cool to find out if it's true. 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(char *) 0 : (char const *) 0; *t++ = 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; } #endif ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&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 $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_c_const=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_c_const=no fi rm -f conftest.err conftest.$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 egrep" >&5 echo $ECHO_N "checking for egrep... $ECHO_C" >&6 if test "${ac_cv_prog_egrep+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if echo a | (grep -E '(a|b)') >/dev/null 2>&1 then ac_cv_prog_egrep='grep -E' else ac_cv_prog_egrep='egrep' fi fi echo "$as_me:$LINENO: result: $ac_cv_prog_egrep" >&5 echo "${ECHO_T}$ac_cv_prog_egrep" >&6 EGREP=$ac_cv_prog_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.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&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 $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_header_stdc=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_header_stdc=no fi rm -f conftest.err conftest.$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.$ac_ext <<_ACEOF /* end confdefs.h. */ #include #if ((' ' & 0x0FF) == 0x020) # define ISLOWER(c) ('a' <= (c) && (c) <= 'z') # define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) #else # define ISLOWER(c) \ (('a' <= (c) && (c) <= 'i') \ || ('j' <= (c) && (c) <= 'r') \ || ('s' <= (c) && (c) <= 'z')) # define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) #endif #define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) int main () { int i; for (i = 0; i < 256; i++) if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2); exit (0); } _ACEOF rm -f conftest$ac_exeext if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 (eval $ac_link) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='./conftest$ac_exeext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&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 $ac_status ) ac_cv_header_stdc=no fi rm -f core *.core gmon.out bb.out conftest$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 $ac_cv_header_stdc = yes; then cat >>confdefs.h <<\_ACEOF #define STDC_HEADERS 1 _ACEOF fi echo "$as_me:$LINENO: checking whether time.h and sys/time.h may both be included" >&5 echo $ECHO_N "checking whether time.h and sys/time.h may both be included... $ECHO_C" >&6 if test "${ac_cv_header_time+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 int main () { if ((struct tm *) 0) return 0; ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&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 $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_header_time=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_header_time=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_header_time" >&5 echo "${ECHO_T}$ac_cv_header_time" >&6 if test $ac_cv_header_time = yes; then cat >>confdefs.h <<\_ACEOF #define TIME_WITH_SYS_TIME 1 _ACEOF fi # On IRIX 5.3, sys/types and inttypes.h are conflicting. for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ inttypes.h stdint.h unistd.h do as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6 if eval "test \"\${$as_ac_Header+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.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>conftest.er1 ac_status=$? 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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.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&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 $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_header_compiler=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_header_compiler=no fi rm -f conftest.err conftest.$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 <$ac_header> _ACEOF if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&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 $ac_status); } >/dev/null; then if test -s conftest.err; then ac_cpp_err=$ac_c_preproc_warn_flag ac_cpp_err=$ac_cpp_err$ac_c_werror_flag else ac_cpp_err= fi else ac_cpp_err=yes fi if test -z "$ac_cpp_err"; then ac_header_preproc=yes else echo "$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: $ac_header: in the future, the compiler will take precedence" >&2;} ( cat <<\_ASBOX ## ----------------------------------- ## ## Report this to the dnsproxy lists. ## ## ----------------------------------- ## _ASBOX ) | sed "s/^/$as_me: WARNING: /" >&2 ;; esac echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6 if eval "test \"\${$as_ac_Header+set}\" = set"; then echo $ECHO_N "(cached) $ECHO_C" >&6 else eval "$as_ac_Header=\$ac_header_preproc" fi echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6 fi if test `eval echo '${'$as_ac_Header'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 _ACEOF fi done for ac_header in netinet/in.h arpa/inet.h do as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` if eval "test \"\${$as_ac_Header+set}\" = set"; then echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6 if eval "test \"\${$as_ac_Header+set}\" = set"; then echo $ECHO_N "(cached) $ECHO_C" >&6 fi echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&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.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&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 $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_header_compiler=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_header_compiler=no fi rm -f conftest.err conftest.$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 <$ac_header> _ACEOF if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&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 $ac_status); } >/dev/null; then if test -s conftest.err; then ac_cpp_err=$ac_c_preproc_warn_flag ac_cpp_err=$ac_cpp_err$ac_c_werror_flag else ac_cpp_err= fi else ac_cpp_err=yes fi if test -z "$ac_cpp_err"; then ac_header_preproc=yes else echo "$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: $ac_header: in the future, the compiler will take precedence" >&2;} ( cat <<\_ASBOX ## ----------------------------------- ## ## Report this to the dnsproxy lists. ## ## ----------------------------------- ## _ASBOX ) | sed "s/^/$as_me: WARNING: /" >&2 ;; esac echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6 if eval "test \"\${$as_ac_Header+set}\" = set"; then echo $ECHO_N "(cached) $ECHO_C" >&6 else eval "$as_ac_Header=\$ac_header_preproc" fi echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6 fi if test `eval echo '${'$as_ac_Header'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 _ACEOF fi done for ac_header in errno.h syslog.h do as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` if eval "test \"\${$as_ac_Header+set}\" = set"; then echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6 if eval "test \"\${$as_ac_Header+set}\" = set"; then echo $ECHO_N "(cached) $ECHO_C" >&6 fi echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&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.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&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 $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_header_compiler=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_header_compiler=no fi rm -f conftest.err conftest.$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 <$ac_header> _ACEOF if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&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 $ac_status); } >/dev/null; then if test -s conftest.err; then ac_cpp_err=$ac_c_preproc_warn_flag ac_cpp_err=$ac_cpp_err$ac_c_werror_flag else ac_cpp_err= fi else ac_cpp_err=yes fi if test -z "$ac_cpp_err"; then ac_header_preproc=yes else echo "$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: $ac_header: in the future, the compiler will take precedence" >&2;} ( cat <<\_ASBOX ## ----------------------------------- ## ## Report this to the dnsproxy lists. ## ## ----------------------------------- ## _ASBOX ) | sed "s/^/$as_me: WARNING: /" >&2 ;; esac echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6 if eval "test \"\${$as_ac_Header+set}\" = set"; then echo $ECHO_N "(cached) $ECHO_C" >&6 else eval "$as_ac_Header=\$ac_header_preproc" fi echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6 fi if test `eval echo '${'$as_ac_Header'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 _ACEOF fi done echo "$as_me:$LINENO: checking return type of signal handlers" >&5 echo $ECHO_N "checking return type of signal handlers... $ECHO_C" >&6 if test "${ac_cv_type_signal+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 #ifdef signal # undef signal #endif #ifdef __cplusplus extern "C" void (*signal (int, void (*)(int)))(int); #else void (*signal ()) (); #endif int main () { int i; ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&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 $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_type_signal=void else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_type_signal=int fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_type_signal" >&5 echo "${ECHO_T}$ac_cv_type_signal" >&6 cat >>confdefs.h <<_ACEOF #define RETSIGTYPE $ac_cv_type_signal _ACEOF cat >confcache <<\_ACEOF # This file is a shell script that caches the results of configure # tests run on this system so they can be shared between configure # scripts and configure runs, see configure's option --config-cache. # It is not useful on other systems. 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If it contains results you don't # want to keep, you may remove or edit it. # # config.status only pays attention to the cache file if you give it # the --recheck option to rerun configure. # # `ac_cv_env_foo' variables (set or unset) will be overridden when # loading this file, other *unset* `ac_cv_foo' will be assigned the # following values. _ACEOF # The following way of writing the cache mishandles newlines in values, # but we know of no workaround that is simple, portable, and efficient. # So, don't put newlines in cache variables' values. # Ultrix sh set writes to stderr and can't be redirected directly, # and sets the high bit in the cache file unless we assign to the vars. { (set) 2>&1 | case `(ac_space=' '; set | grep ac_space) 2>&1` in *ac_space=\ *) # `set' does not quote correctly, so add quotes (double-quote # substitution turns \\\\ into \\, and sed turns \\ into \). sed -n \ "s/'/'\\\\''/g; s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p" ;; *) # `set' quotes correctly as required by POSIX, so do not add quotes. sed -n \ "s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p" ;; esac; } | sed ' t clear : clear s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/ t end /^ac_cv_env/!s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/ : end' >>confcache if diff $cache_file confcache >/dev/null 2>&1; then :; else if test -w $cache_file; then test "x$cache_file" != "x/dev/null" && echo "updating cache $cache_file" cat confcache >$cache_file else echo "not updating unwritable cache $cache_file" fi fi rm -f confcache echo "$as_me:$LINENO: checking for library containing gethostbyname" >&5 echo $ECHO_N "checking for library containing gethostbyname... $ECHO_C" >&6 if test "${ac_cv_search_gethostbyname+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_func_search_save_LIBS=$LIBS ac_cv_search_gethostbyname=no cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* Override any gcc2 internal prototype to avoid an error. */ #ifdef __cplusplus extern "C" #endif /* We use char because int might match the return type of a gcc2 builtin and then its argument prototype would still apply. */ char gethostbyname (); int main () { gethostbyname (); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&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 $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest$ac_exeext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_search_gethostbyname="none required" else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 fi rm -f conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext if test "$ac_cv_search_gethostbyname" = no; then for ac_lib in nsl; do LIBS="-l$ac_lib $ac_func_search_save_LIBS" cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* Override any gcc2 internal prototype to avoid an error. */ #ifdef __cplusplus extern "C" #endif /* We use char because int might match the return type of a gcc2 builtin and then its argument prototype would still apply. */ char gethostbyname (); int main () { gethostbyname (); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&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 $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest$ac_exeext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_search_gethostbyname="-l$ac_lib" break else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 fi rm -f conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext done fi LIBS=$ac_func_search_save_LIBS fi echo "$as_me:$LINENO: result: $ac_cv_search_gethostbyname" >&5 echo "${ECHO_T}$ac_cv_search_gethostbyname" >&6 if test "$ac_cv_search_gethostbyname" != no; then test "$ac_cv_search_gethostbyname" = "none required" || LIBS="$ac_cv_search_gethostbyname $LIBS" fi echo "$as_me:$LINENO: checking for library containing socket" >&5 echo $ECHO_N "checking for library containing socket... $ECHO_C" >&6 if test "${ac_cv_search_socket+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_func_search_save_LIBS=$LIBS ac_cv_search_socket=no cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* Override any gcc2 internal prototype to avoid an error. */ #ifdef __cplusplus extern "C" #endif /* We use char because int might match the return type of a gcc2 builtin and then its argument prototype would still apply. */ char socket (); int main () { socket (); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&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 $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest$ac_exeext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_search_socket="none required" else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 fi rm -f conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext if test "$ac_cv_search_socket" = no; then for ac_lib in socket; do LIBS="-l$ac_lib $ac_func_search_save_LIBS" cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* Override any gcc2 internal prototype to avoid an error. */ #ifdef __cplusplus extern "C" #endif /* We use char because int might match the return type of a gcc2 builtin and then its argument prototype would still apply. */ char socket (); int main () { socket (); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&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 $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest$ac_exeext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_search_socket="-l$ac_lib" break else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 fi rm -f conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext done fi LIBS=$ac_func_search_save_LIBS fi echo "$as_me:$LINENO: result: $ac_cv_search_socket" >&5 echo "${ECHO_T}$ac_cv_search_socket" >&6 if test "$ac_cv_search_socket" != no; then test "$ac_cv_search_socket" = "none required" || LIBS="$ac_cv_search_socket $LIBS" else echo "$as_me:$LINENO: checking for socket in -lsocket" >&5 echo $ECHO_N "checking for socket in -lsocket... $ECHO_C" >&6 if test "${ac_cv_lib_socket_socket+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lsocket -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 gcc2 internal prototype to avoid an error. */ #ifdef __cplusplus extern "C" #endif /* We use char because int might match the return type of a gcc2 builtin and then its argument prototype would still apply. */ char socket (); int main () { socket (); ; return 0; } _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&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 $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest$ac_exeext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_lib_socket_socket=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_lib_socket_socket=no fi rm -f conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi echo "$as_me:$LINENO: result: $ac_cv_lib_socket_socket" >&5 echo "${ECHO_T}$ac_cv_lib_socket_socket" >&6 if test $ac_cv_lib_socket_socket = yes; then LIBS="-lsocket -lnsl $LIBS" fi fi cat >confcache <<\_ACEOF # This file is a shell script that caches the results of configure # tests run on this system so they can be shared between configure # scripts and configure runs, see configure's option --config-cache. # It is not useful on other systems. 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Now run make." >&6 echo "$as_me:$LINENO: result: " >&5 echo "${ECHO_T}" >&6 dnsproxy-1.16/configure.ac010064400101230000000000000106011132340034700146220ustar00arminwheeldnl $Id: configure.ac,v 1.15 2010/01/13 17:20:39 armin Exp $ dnl ------------------------------------------------------------------ AC_INIT(dnsproxy, 1.16) AC_PREREQ(2.59) AC_REVISION([$Revision: 1.15 $]) AC_CONFIG_HEADERS(config.h) dnl ------------------------------------------------------------------ dnl Check for programs dnl ------------------------------------------------------------------ AC_PROG_CC AC_PROG_CPP AC_PROG_INSTALL AC_PROG_MAKE_SET AC_CACHE_SAVE dnl ------------------------------------------------------------------ dnl Check for headers dnl ------------------------------------------------------------------ AC_C_CONST AC_HEADER_STDC AC_HEADER_TIME AC_CHECK_HEADERS(sys/types.h sys/socket.h sys/time.h) AC_CHECK_HEADERS(netinet/in.h arpa/inet.h) AC_CHECK_HEADERS(errno.h syslog.h) AC_TYPE_SIGNAL AC_CACHE_SAVE dnl ------------------------------------------------------------------ dnl Check for functions dnl ------------------------------------------------------------------ AC_CHECK_FUNCS(strchr memcpy) AC_CHECK_FUNCS(setregid setresgid setresuid setreuid) AC_CACHE_SAVE dnl ------------------------------------------------------------------ dnl Check for additional libraries dnl ------------------------------------------------------------------ AC_SEARCH_LIBS([gethostbyname], [nsl]) AC_SEARCH_LIBS([socket], [socket], [], [ AC_CHECK_LIB([socket], [socket], [LIBS="-lsocket -lnsl $LIBS"], [], [-lnsl]) ]) AC_CACHE_SAVE dnl ------------------------------------------------------------------ dnl Enable extended warnings while developing dnl ------------------------------------------------------------------ AC_ARG_ENABLE(warnings, [ --enable-warnings enable all sorts of warnings for debugging], [ CFLAGS="${CFLAGS} -Wall -Werror -Wcast-qual -Wmissing-declarations \ -W -Wmissing-prototypes -Wnested-externs -Wshadow \ -Wwrite-strings -Wno-unused -Wno-sign-compare" ]) AC_SUBST(CFLAGS) dnl ------------------------------------------------------------------ dnl Check for libevent library dnl ------------------------------------------------------------------ lefound="no" LIBS="$LIBS -levent" AC_MSG_CHECKING(for libevent) AC_ARG_WITH(libevent, AC_HELP_STRING( [--with-libevent=PATH], [directory prefix where libevent is found] ), [ if test -f $withval/include/event.h; then CFLAGS="${CFLAGS} -I$withval/include" elif test -f $withval/event.h; then CFLAGS="${CFLAGS} -I$withval" else AC_ERROR([event.h not found]) fi if test -f $withval/lib; then LDFLAGS="${LDFLAGS} -L$withval/lib" else LDFLAGS="${LDFLAGS} -L$withval" fi AC_MSG_RESULT([using $withval]) lefound="yes" ], [ saved_CFLAGS=$CFLAGS saved_LDFLAGS=$LDFLAGS for testdir in "" $prefix /usr/local /opt/csw; do if test -z "$testdir"; then CFLAGS="$saved_CFLAGS" LDFLAGS="$saved_LDFLAGS" else CFLAGS="$saved_CFLAGS -I$testdir/include" LDFLAGS="$saved_LDFLAGS -L$testdir/lib" fi AC_TRY_LINK([#include #include #include ], [ event_init(); ], [ lefound="$testdir" ], [ lefound="no" ]) if test "$lefound" != "no"; then if test -z "$testdir"; then AC_MSG_RESULT([found]) else AC_MSG_RESULT([found in $lefound]) fi break fi done ] ) if test "$lefound" = "no"; then AC_MSG_ERROR([ This software requires the libevent library available at http://monkey.org/~provos/libevent/ You may specify it's directory prefix with ./configure --with-libevent=/prefix/of/libevent ]) fi dnl ------------------------------------------------------------------ dnl Check for available nroff and manpage macro package dnl ------------------------------------------------------------------ AC_PATH_PROGS([NROFF], [nroff awf], [/bin/false], [$PATH:/usr/ucb]) if ${NROFF} -mdoc dnsproxy.1 >/dev/null 2>&1; then MAN=mdoc else MAN=man fi AC_SUBST(MAN) dnl ------------------------------------------------------------------ dnl Generate Makefile by default. Others only if their .in file dnl exists in the current directory, which happens in my workdir dnl but not for distributed tarballs. dnl ------------------------------------------------------------------ AC_CONFIG_FILES(Makefile) if test -r "README.in"; then AC_CONFIG_FILES(README) fi if test -r "dnsproxy.1.in"; then AC_CONFIG_FILES(dnsproxy.1) fi AC_OUTPUT() AC_MSG_RESULT() AC_MSG_RESULT([Configured successfully. Now run make.]) AC_MSG_RESULT() dnsproxy-1.16/daemon.c010064400101230000000000000043151024222204500137440ustar00arminwheel/* $Id: daemon.c,v 1.3 2005/05/16 22:52:21 armin Exp $ */ /*- * Copyright (c) 1990, 1993 * The Regents of the University of California. 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. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. * * From: $OpenBSD: daemon.c,v 1.5 2003/07/15 17:32:41 deraadt Exp $ */ #include #include #include #include #include "dnsproxy.h" int daemon(int nochdir, int noclose) { int fd; switch (fork()) { case -1: return (-1); case 0: break; default: _exit(0); } if (setsid() == -1) return (-1); if (!nochdir) (void)chdir("/"); if (!noclose && (fd = open("/dev/null", O_RDWR, 0)) != -1) { (void)dup2(fd, STDIN_FILENO); (void)dup2(fd, STDOUT_FILENO); (void)dup2(fd, STDERR_FILENO); if (fd > 2) (void)close (fd); } return (0); } dnsproxy-1.16/dnsproxy.1010064400101230000000000000121311132340152700143050ustar00arminwheel.\" $Id: dnsproxy.1.in,v 1.8 2004/04/05 12:47:07 armin Exp $ .\" .\" Copyright (c) 2003,2004 Armin Wolfermann .\" .\" Permission is hereby granted, free of charge, to any person obtaining a .\" copy of this software and associated documentation files (the "Software"), .\" to deal in the Software without restriction, including without limitation .\" the rights to use, copy, modify, merge, publish, distribute, sublicense, .\" and/or sell copies of the Software, and to permit persons to whom the .\" Software is furnished to do so, subject to the following conditions: .\" .\" The above copyright notice and this permission notice shall be included in .\" all copies or substantial portions of the Software. .\" .\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR .\" IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, .\" FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL .\" THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER .\" LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING .\" FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER .\" DEALINGS IN THE SOFTWARE. .\" .Dd November 29, 2003 .Dt DNSPROXY 1 .Os LOCAL .Sh NAME .Nm dnsproxy .Nd DNS proxy .Sh SYNOPSIS .Nm dnsproxy .Op Fl dhV .Op Fl c Ar file .\" ------------------------------------------------------------------ .Sh DESCRIPTION .\" ------------------------------------------------------------------ The .Nm daemon waits for nameserver queries on a user specified address, dispatches these queries to authoritative and recursive nameservers and forwards the received answers back to the original client. .Pp The options are as follows: .Bl -tag -width Dfxfile .It Fl c Ar file Read configuration from file. .It Fl d Detach from current terminal and run as background process. .It Fl h Show usage. .It Fl V Show version. .El .Pp If a client from an internal IP address does a recursive lookup the query is forwarded to a recursive DNS server. Authoritative queries and queries coming from clients in foreign networks are forwarded to an authoritative DNS server. .Pp .\" ------------------------------------------------------------------ .Sh CONFIGURATION FILE .\" ------------------------------------------------------------------ At startup .Nm reads a configuration file specified via the -c option or at the default location of /etc/dnsproxy.conf. .Pp The following keywords are recognized: .Bl -ohang .It authoritative Ar IP Address of the authoritative nameserver [required]. .It recursive Ar IP Address of the recursive nameserver [required]. .It listen Ar IP Local address (defaults to 0.0.0.0). .It port Ar number Local port number (defaults to 53). .It chroot Ar path A path to chroot to before starting to answer queries. .It user Ar name A user to change to before starting to answer queries. .It authoritative-timeout Ar seconds Time in seconds when authoritative queries time out (defaults to 10). .It recursive-timeout Ar seconds Time in seconds when recursive queries time out (defaults to 90). .It authoritative-port Ar number Port number on authoritative nameserver (defaults to 53). .It recursive-port Ar number Port number on recursive nameserver (defaults to 53). .It statistics Ar seconds Period between output of statistics (defaults to 3600). Use 0 to disable output of statistics completely. .It internal Fa network Declare networks recognized as internal and thus eligible to do recursive queries. One network in CIDR notation per keyword. .El .Ss EXAMPLE .Bd -literal -offset indent authoritative 10.1.1.1 recursive 127.0.0.1 recursive-port 10053 listen 192.168.1.1 port 53 chroot /var/empty user nobody internal 192.168.1.0/24 internal 127.0.0.1 .Ed .Pp .\" ------------------------------------------------------------------ .Sh STATISTICS .\" ------------------------------------------------------------------ Every hour (by default) .Nm logs the collected statistics about its usage to standard error (or syslog when running detached). Statistics look like .Bd -literal -offset indent ActiveQr AuthorQr RecursQr AllQuery Answered 0 0 0 0 0 TimeoutQ DroppedQ DroppedA LateAnsw HashColl 0 0 0 0 0 .Ed .Pp and have the following meaning: .Bl -ohang .It ActiveQr Number of currently active queries proxied to the servers. .It AuthorQr Accumulated number of authoritative queries. .It RecursQr Accumulated number of recursive queries. .It AllQuery Accumulated number of all queries ever received. .It Answered Accumulated number of answered queries. .It TimeoutQ Accumulated number of queries that did not receive an answer in time. .It DroppedQ Accumulated number of dropped queries (e.g. transmission errors). .It DroppedA Accumulated number of dropped answers. .It LateAnsw Accumulated number of answers received after the timeout period. .It HashColl Accumulated number of hash collisions in the query list. .El .\" .Sh SEE ALSO .Xr named 1 .Sh VERSION This manual page describes .Nm version 1.16. .Sh AUTHORS Armin Wolfermann .Pp The .Nm homepage is at http://www.wolfermann.org/dnsproxy.html. .Pp dnsproxy-1.16/dnsproxy.c010064400101230000000000000243041132263655000144010ustar00arminwheel/* $Id: dnsproxy.c,v 1.16 2010/01/11 15:02:00 armin Exp $ */ /* * Copyright (c) 2003,2004,2005,2010 Armin Wolfermann * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #include #include #include #include #include #include #include #include #define GLOBALS 1 #include "dnsproxy.h" #define RD(x) (*(x + 2) & 0x01) #define MAX_BUFSPACE 512 static unsigned short queryid = 0; #define QUERYID queryid++ static struct sockaddr_in authoritative_addr; static struct sockaddr_in recursive_addr; static int sock_query; static int sock_answer; static int dnsproxy_sig; extern int event_gotsig; extern int (*event_sigcb)(void); #ifdef DEBUG char *malloc_options = "AGZ"; #endif /* signal_handler -- Called by libevent if a signal arrives. */ void signal_handler(int sig, short event, void *arg) { fatal("exiting on signal %d", sig); } /* timeout -- Called by the event loop when a query times out. Removes the * query from the queue. */ /* ARGSUSED */ static void timeout(int fd, short event, void *arg) { hash_remove_request((struct request *)arg); free((struct request *)arg); ++removed_queries; } /* do_query -- Called by the event loop when a packet arrives at our * listening socket. Read the packet, create a new query, append it to the * queue and send it to the correct server. */ /* ARGSUSED */ static void do_query(int fd, short event, void *arg) { char buf[MAX_BUFSPACE]; int byte = 0; struct sockaddr_in fromaddr; unsigned int fromlen = sizeof(fromaddr); struct request *req; struct timeval tv; ++all_queries; /* Reschedule event */ event_add((struct event *)arg, NULL); /* read packet from socket */ if ((byte = recvfrom(fd, buf, sizeof(buf), 0, (struct sockaddr *)&fromaddr, &fromlen)) == -1) { error("recvfrom failed: %s", strerror(errno)); ++dropped_queries; return; } /* check for minimum dns packet length */ if (byte < 12) { error("query too short from %s", inet_ntoa(fromaddr.sin_addr)); ++dropped_queries; return; } /* allocate new request */ if ((req = calloc(1, sizeof(struct request))) == NULL) { error("calloc: %s", strerror(errno)); ++dropped_queries; return; } /* fill the request structure */ req->id = QUERYID; memcpy(&req->client, &fromaddr, sizeof(struct sockaddr_in)); memcpy(&req->clientid, &buf[0], 2); /* where is this query coming from? */ if (is_internal(fromaddr.sin_addr)) { req->recursion = RD(buf); DPRINTF(("Internal query RD=%d\n", req->recursion)); } else { /* no recursion for foreigners */ req->recursion = 0; DPRINTF(("External query RD=%d\n", RD(buf))); } /* insert it into the hash table */ hash_add_request(req); /* overwrite the original query id */ memcpy(&buf[0], &req->id, 2); if (req->recursion) { /* recursive queries timeout in 90s */ event_set(&req->timeout, -1, 0, timeout, req); tv.tv_sec=recursive_timeout; tv.tv_usec=0; event_add(&req->timeout, &tv); /* send it to our recursive server */ if ((byte = sendto(sock_answer, buf, (unsigned int)byte, 0, (struct sockaddr *)&recursive_addr, sizeof(struct sockaddr_in))) == -1) { error("sendto failed: %s", strerror(errno)); ++dropped_queries; return; } ++recursive_queries; } else { /* authoritative queries timeout in 10s */ event_set(&req->timeout, -1, 0, timeout, req); tv.tv_sec=authoritative_timeout; tv.tv_usec=0; event_add(&req->timeout, &tv); /* send it to our authoritative server */ if ((byte = sendto(sock_answer, buf, (unsigned int)byte, 0, (struct sockaddr *)&authoritative_addr, sizeof(struct sockaddr_in))) == -1) { error("sendto failed: %s", strerror(errno)); ++dropped_queries; return; } ++authoritative_queries; } } /* do_answer -- Process a packet coming from our authoritative or recursive * server. Find the corresponding query and send answer back to querying * host. */ /* ARGSUSED */ static void do_answer(int fd, short event, void *arg) { char buf[MAX_BUFSPACE]; int byte = 0; struct request *query = NULL; /* Reschedule event */ event_add((struct event *)arg, NULL); /* read packet from socket */ if ((byte = recvfrom(fd, buf, sizeof(buf), 0, NULL, NULL)) == -1) { error("recvfrom failed: %s", strerror(errno)); ++dropped_answers; return; } /* check for minimum dns packet length */ if (byte < 12) { error("answer too short"); ++dropped_answers; return; } /* find corresponding query */ if ((query = hash_find_request(*((unsigned short *)&buf))) == NULL) { ++late_answers; return; } event_del(&query->timeout); hash_remove_request(query); /* restore original query id */ memcpy(&buf[0], &query->clientid, 2); /* send answer back to querying host */ if (sendto(sock_query, buf, (unsigned int)byte, 0, (struct sockaddr *)&query->client, sizeof(struct sockaddr_in)) == -1) { error("sendto failed: %s", strerror(errno)); ++dropped_answers; } else ++answered_queries; free(query); } /* main -- dnsproxy main function */ int main(int argc, char *argv[]) { int ch; struct passwd *pw = NULL; struct sockaddr_in addr; struct event evq, eva; struct event evsigint, evsigterm, evsighup; const char *config = "/etc/dnsproxy.conf"; int daemonize = 0; /* Process commandline arguments */ while ((ch = getopt(argc, argv, "c:dhV")) != -1) { switch (ch) { case 'c': config = optarg; break; case 'd': daemonize = 1; break; case 'V': fprintf(stderr, PACKAGE_STRING "\n"); exit(0); /* FALLTHROUGH */ case 'h': default: fprintf(stderr, "usage: dnsproxy [-c file] [-dhV]\n" \ "\t-c file Read configuration from file\n" \ "\t-d Detach and run as a daemon\n" \ "\t-h This help text\n" \ "\t-V Show version information\n"); exit(1); } } /* Parse configuration and check required parameters */ if (!parse(config)) fatal("unable to parse configuration"); if (!authoritative || !recursive) fatal("No authoritative or recursive server defined"); if (!listenat) listenat = strdup("0.0.0.0"); /* Create and bind query socket */ if ((sock_query = socket(AF_INET, SOCK_DGRAM, 0)) == -1) fatal("unable to create socket: %s", strerror(errno)); memset(&addr, 0, sizeof(struct sockaddr_in)); addr.sin_addr.s_addr = inet_addr(listenat); addr.sin_port = htons(port); addr.sin_family = AF_INET; if (bind(sock_query, (struct sockaddr *)&addr, sizeof(addr)) != 0) fatal("unable to bind socket: %s", strerror(errno)); /* Create and bind answer socket */ if ((sock_answer = socket(AF_INET, SOCK_DGRAM, 0)) == -1) fatal("unable to create socket: %s", strerror(errno)); memset(&addr, 0, sizeof(struct sockaddr_in)); addr.sin_family = AF_INET; if (bind(sock_answer, (struct sockaddr *)&addr, sizeof(addr)) != 0) fatal("unable to bind socket: %s", strerror(errno)); /* Fill sockaddr_in structs for both servers */ memset(&authoritative_addr, 0, sizeof(struct sockaddr_in)); authoritative_addr.sin_addr.s_addr = inet_addr(authoritative); authoritative_addr.sin_port = htons(authoritative_port); authoritative_addr.sin_family = AF_INET; memset(&recursive_addr, 0, sizeof(struct sockaddr_in)); recursive_addr.sin_addr.s_addr = inet_addr(recursive); recursive_addr.sin_port = htons(recursive_port); recursive_addr.sin_family = AF_INET; /* Daemonize if requested and switch to syslog */ if (daemonize) { if (daemon(0, 0) == -1) fatal("unable to daemonize"); log_syslog("dnsproxy"); } /* Find less privileged user */ if (user) { pw = getpwnam(user); if (!pw) fatal("unable to find user %s", user); } /* Do a chroot if requested */ if (chrootdir) { if (chdir(chrootdir) || chroot(chrootdir)) fatal("unable to chroot to %s", chrootdir); chdir("/"); } /* Drop privileges */ if (user) { if (setgroups(1, &pw->pw_gid) < 0) fatal("setgroups: %s", strerror(errno)); #if defined(HAVE_SETRESGID) if (setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid) < 0) fatal("setresgid: %s", strerror(errno)); #elif defined(HAVE_SETREGID) if (setregid(pw->pw_gid, pw->pw_gid) < 0) fatal("setregid: %s", strerror(errno)); #else if (setegid(pw->pw_gid) < 0) fatal("setegid: %s", strerror(errno)); if (setgid(pw->pw_gid) < 0) fatal("setgid: %s", strerror(errno)); #endif #if defined(HAVE_SETRESUID) if (setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid) < 0) fatal("setresuid: %s", strerror(errno)); #elif defined(HAVE_SETREUID) if (setreuid(pw->pw_uid, pw->pw_uid) < 0) fatal("setreuid: %s", strerror(errno)); #else if (seteuid(pw->pw_uid) < 0) fatal("seteuid: %s", strerror(errno)); if (setuid(pw->pw_uid) < 0) fatal("setuid: %s", strerror(errno)); #endif } event_init(); /* Take care of signals */ signal_set(&evsigint, SIGINT, signal_handler, NULL); signal_set(&evsigterm, SIGTERM, signal_handler, NULL); signal_set(&evsighup, SIGHUP, signal_handler, NULL); signal_add(&evsigint, NULL); signal_add(&evsigterm, NULL); signal_add(&evsighup, NULL); /* Zero counters and start statistics timer */ statistics_start(); /* Install query and answer event handlers */ event_set(&evq, sock_query, EV_READ, do_query, &evq); event_set(&eva, sock_answer, EV_READ, do_answer, &eva); event_add(&evq, NULL); event_add(&eva, NULL); /* Start libevent main loop */ event_dispatch(); return 0; } dnsproxy-1.16/dnsproxy.conf010064400101230000000000000013331132340150300150660ustar00arminwheel# # dnsproxy 1.15 configuration file example # # $Id: dnsproxy.conf,v 1.7 2005/05/16 17:31:30 armin Exp $ # # Authoritative server # authoritative 127.0.0.1 authoritative-port 53001 # It's port. Defaults to 53. authoritative-timeout 10 # Seconds to wait for answers. # # Recursive resolver # recursive 127.0.0.1 recursive-port 53002 # It's port. Defaults to 53. recursive-timeout 90 # Seconds to wait for answers. # # Local address and port of dnsproxy # listen 192.168.168.1 port 53000 # # Security features # chroot /var/empty user nobody # # Internal networks (allowed to do recursive queries) # internal 192.168.168.0/24 # Our internal network internal 192.168.169.0/24 # Friendly neighbours internal 127.0.0.1 dnsproxy-1.16/dnsproxy.h010064400101230000000000000064721132263655000144140ustar00arminwheel/* $Id: dnsproxy.h,v 1.9 2010/01/11 15:02:00 armin Exp $ */ /* * Copyright (c) 2003,2004,2005,2010 Armin Wolfermann * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #ifndef _DNSPROXY_H_ #define _DNSPROXY_H_ /* LONGLONG */ #include #if TIME_WITH_SYS_TIME # include # include #else # if HAVE_SYS_TIME_H # include # else # include # endif #endif #include #include #if HAVE_ARPA_INET_H # include #endif #include #include #ifdef DEBUG #define DPRINTF(x) do { printf x ; } while (0) #else #define DPRINTF(x) #endif #ifdef GLOBALS #define GLOBAL(a) a #define GLOBAL_INIT(a,b) a = b #else #define GLOBAL(a) extern a #define GLOBAL_INIT(a,b) extern a #endif struct request { unsigned short id; struct sockaddr_in client; unsigned short clientid; unsigned char recursion; struct event timeout; struct request **prev; struct request *next; }; GLOBAL_INIT(unsigned int authoritative_port, 53); GLOBAL_INIT(unsigned int authoritative_timeout, 10); GLOBAL_INIT(unsigned int recursive_port, 53); GLOBAL_INIT(unsigned int recursive_timeout, 90); GLOBAL_INIT(unsigned int stats_timeout, 3600); GLOBAL_INIT(unsigned int port, 53); GLOBAL(char *authoritative); GLOBAL(char *chrootdir); GLOBAL(char *listenat); GLOBAL(char *recursive); GLOBAL(char *user); GLOBAL(unsigned long active_queries); GLOBAL(unsigned long all_queries); GLOBAL(unsigned long authoritative_queries); GLOBAL(unsigned long recursive_queries); GLOBAL(unsigned long removed_queries); GLOBAL(unsigned long dropped_queries); GLOBAL(unsigned long answered_queries); GLOBAL(unsigned long dropped_answers); GLOBAL(unsigned long late_answers); GLOBAL(unsigned long hash_collisions); /* dnsproxy.c */ void signal_handler(int, short, void *); /* daemon.c */ int daemon(int, int); /* hash.c */ void hash_add_request(struct request *); void hash_remove_request(struct request *); struct request *hash_find_request(unsigned short); /* internal.c */ int add_internal(char *); int is_internal(struct in_addr); /* log.c */ void log_syslog(const char *); void info(const char *, ...); void error(const char *, ...); void fatal(const char *, ...); /* parse.c */ int parse(const char *); /* statistics.c */ void statistics_start(void); #endif /* _DNSPROXY_H_ */ dnsproxy-1.16/hash.c010064400101230000000000000036561024074722100134410ustar00arminwheel/* $Id: hash.c,v 1.8 2004/04/05 12:47:07 armin Exp $ */ /* * Copyright (c) 2003,2004 Armin Wolfermann * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #include #include "dnsproxy.h" #define HASHSIZE 10 #define HASH(id) (id & ((1 << HASHSIZE) - 1)) static struct request *request_hash[1 << HASHSIZE]; void hash_add_request(struct request *req) { struct request **p = &request_hash[HASH(req->id)]; if ((req->next = *p) != NULL) { (*p)->prev = &req->next; ++hash_collisions; } *p = req; req->prev = p; ++active_queries; } void hash_remove_request(struct request *req) { if (!req->prev) return; if (req->next) req->next->prev = req->prev; *req->prev = req->next; req->prev = NULL; --active_queries; } struct request * hash_find_request(unsigned short id) { struct request *req = request_hash[HASH(id)]; for (;;) { if (!req) break; if (req->id == id) break; req = req->next; } return req; } dnsproxy-1.16/install-sh010055500101230000000000000127361003425302600143470ustar00arminwheel#!/bin/sh # # install - install a program, script, or datafile # This comes from X11R5 (mit/util/scripts/install.sh). # # Copyright 1991 by the Massachusetts Institute of Technology # # Permission to use, copy, modify, distribute, and sell this software and its # documentation for any purpose is hereby granted without fee, provided that # the above copyright notice appear in all copies and that both that # copyright notice and this permission notice appear in supporting # documentation, and that the name of M.I.T. not be used in advertising or # publicity pertaining to distribution of the software without specific, # written prior permission. M.I.T. makes no representations about the # suitability of this software for any purpose. It is provided "as is" # without express or implied warranty. # # Calling this script install-sh is preferred over install.sh, to prevent # `make' implicit rules from creating a file called install from it # when there is no Makefile. # # This script is compatible with the BSD install script, but was written # from scratch. It can only install one file at a time, a restriction # shared with many OS's install programs. # set DOITPROG to echo to test this script # Don't use :- since 4.3BSD and earlier shells don't like it. doit="${DOITPROG-}" # put in absolute paths if you don't have them in your path; or use env. vars. mvprog="${MVPROG-mv}" cpprog="${CPPROG-cp}" chmodprog="${CHMODPROG-chmod}" chownprog="${CHOWNPROG-chown}" chgrpprog="${CHGRPPROG-chgrp}" stripprog="${STRIPPROG-strip}" rmprog="${RMPROG-rm}" mkdirprog="${MKDIRPROG-mkdir}" transformbasename="" transform_arg="" instcmd="$mvprog" chmodcmd="$chmodprog 0755" chowncmd="" chgrpcmd="" stripcmd="" rmcmd="$rmprog -f" mvcmd="$mvprog" src="" dst="" dir_arg="" while [ x"$1" != x ]; do case $1 in -c) instcmd="$cpprog" shift continue;; -d) dir_arg=true shift continue;; -m) chmodcmd="$chmodprog $2" shift shift continue;; -o) chowncmd="$chownprog $2" shift shift continue;; -g) chgrpcmd="$chgrpprog $2" shift shift continue;; -s) stripcmd="$stripprog" shift continue;; -t=*) transformarg=`echo $1 | sed 's/-t=//'` shift continue;; -b=*) transformbasename=`echo $1 | sed 's/-b=//'` shift continue;; *) if [ x"$src" = x ] then src=$1 else # this colon is to work around a 386BSD /bin/sh bug : dst=$1 fi shift continue;; esac done if [ x"$src" = x ] then echo "install: no input file specified" exit 1 else true fi if [ x"$dir_arg" != x ]; then dst=$src src="" if [ -d $dst ]; then instcmd=: chmodcmd="" else instcmd=mkdir fi else # Waiting for this to be detected by the "$instcmd $src $dsttmp" command # might cause directories to be created, which would be especially bad # if $src (and thus $dsttmp) contains '*'. if [ -f $src -o -d $src ] then true else echo "install: $src does not exist" exit 1 fi if [ x"$dst" = x ] then echo "install: no destination specified" exit 1 else true fi # If destination is a directory, append the input filename; if your system # does not like double slashes in filenames, you may need to add some logic if [ -d $dst ] then dst="$dst"/`basename $src` else true fi fi ## this sed command emulates the dirname command dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'` # Make sure that the destination directory exists. # this part is taken from Noah Friedman's mkinstalldirs script # Skip lots of stat calls in the usual case. if [ ! -d "$dstdir" ]; then defaultIFS=' ' IFS="${IFS-${defaultIFS}}" oIFS="${IFS}" # Some sh's can't handle IFS=/ for some reason. IFS='%' set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'` IFS="${oIFS}" pathcomp='' while [ $# -ne 0 ] ; do pathcomp="${pathcomp}${1}" shift if [ ! -d "${pathcomp}" ] ; then $mkdirprog "${pathcomp}" else true fi pathcomp="${pathcomp}/" done fi if [ x"$dir_arg" != x ] then $doit $instcmd $dst && if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi && if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi && if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi && if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi else # If we're going to rename the final executable, determine the name now. if [ x"$transformarg" = x ] then dstfile=`basename $dst` else dstfile=`basename $dst $transformbasename | sed $transformarg`$transformbasename fi # don't allow the sed command to completely eliminate the filename if [ x"$dstfile" = x ] then dstfile=`basename $dst` else true fi # Make a temp file name in the proper directory. dsttmp=$dstdir/#inst.$$# # Move or copy the file name to the temp name $doit $instcmd $src $dsttmp && trap "rm -f ${dsttmp}" 0 && # and set any options; do chmod last to preserve setuid bits # If any of these fail, we abort the whole thing. If we want to # ignore errors from any of these, just make sure not to ignore # errors from the above "$doit $instcmd $src $dsttmp" command. if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi && if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi && if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi && if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi && # Now rename the file to the real destination. $doit $rmcmd -f $dstdir/$dstfile && $doit $mvcmd $dsttmp $dstdir/$dstfile fi && exit 0 dnsproxy-1.16/internal.c010064400101230000000000000045601024074722100143250ustar00arminwheel/* $Id: internal.c,v 1.9 2004/04/05 12:47:07 armin Exp $ */ /* * Copyright (c) 2003,2004 Armin Wolfermann * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #include #include #include #include #include #include "dnsproxy.h" struct internal { unsigned int addr; unsigned int mask; struct internal *next; }; static struct internal *internals = NULL; int add_internal(char *s) { char *p; int mask; struct in_addr addr; struct internal *ipa; if (s == NULL) return 0; if ((p = strchr(s, '/')) != NULL) { mask = strtol(p+1, NULL, 10) % 32; *p = '\0'; } else { mask = 32; } if (inet_pton(AF_INET, s, &addr) != 1) return 0; if ((ipa = calloc(1, sizeof(struct internal))) == NULL) fatal("calloc: %s", strerror(errno)); memcpy(&ipa->addr, &addr, 4); ipa->mask = htonl(0xffffffff << (32 - mask)); ipa->addr &= ipa->mask; ipa->next = internals; internals = ipa; DPRINTF(("add_internal %s/%d (%08x/%08x)\n", inet_ntoa(addr), mask, ipa->addr, ipa->mask)); return 1; } int is_internal(struct in_addr arg) { unsigned int addr; struct internal *p; DPRINTF(("is_internal(%s)\n", inet_ntoa(arg))); memcpy(&addr, &arg, 4); for (p = internals; p != NULL; p = p->next) { DPRINTF(("%08x == %08x & %08x ?\n", p->addr, addr, p->mask)); if (p->addr == (addr & p->mask)) return 1; } return 0; } dnsproxy-1.16/log.c010064400101230000000000000037351024222204500132670ustar00arminwheel/* $Id: log.c,v 1.9 2005/05/16 22:52:21 armin Exp $ */ /* * Copyright (c) 2003,2004,2005 Armin Wolfermann * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #include #include #include #include #include #include "dnsproxy.h" static int log_on_syslog = 0; void log_syslog(const char *tag) { openlog(tag, LOG_NDELAY, LOG_DAEMON); ++log_on_syslog; } static void log_printf(int level, const char *fmt, va_list ap) { if (log_on_syslog) vsyslog(level, fmt, ap); else { (void)vfprintf(stderr, fmt, ap); if (strchr(fmt, '\n') == NULL) fprintf(stderr, "\n"); } } void info(const char *fmt, ...) { va_list ap; va_start(ap, fmt); log_printf(LOG_INFO, fmt, ap); va_end(ap); } void error(const char *fmt, ...) { va_list ap; va_start(ap, fmt); log_printf(LOG_ERR, fmt, ap); va_end(ap); } void fatal(const char *fmt, ...) { va_list ap; va_start(ap, fmt); log_printf(LOG_ERR, fmt, ap); va_end(ap); exit(1); } dnsproxy-1.16/parse.c010064400101230000000000000055511024222204500136160ustar00arminwheel/* $Id: parse.c,v 1.12 2005/05/16 22:52:21 armin Exp $ */ /* * Copyright (c) 2003,2004 Armin Wolfermann * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #include #include #include #include #include "dnsproxy.h" /* parse -- Simple configuration file parser. Takes a filename and * reads pairs of 'key value' or 'key = value'. */ int parse(const char *fname) { FILE *f; char buf[1024]; char *s, *key, *arg; if ((f = fopen(fname, "r")) == NULL) return 0; while (fgets(buf, sizeof(buf), f) != NULL) { if ((s = strchr(buf, '#')) != NULL) *s = '\0'; key = strtok(buf, " \t="); arg = strtok(NULL, " \t\n"); if (!key || !arg) continue; DPRINTF(("Found key '%s' arg '%s'\n", key, arg)); if (!strcmp(key, "authoritative")) { authoritative = strdup(arg); continue; } if (!strcmp(key, "authoritative-timeout")) { authoritative_timeout = strtol(arg, NULL, 10); continue; } if (!strcmp(key, "authoritative-port")) { authoritative_port = strtol(arg, NULL, 10); continue; } if (!strcmp(key, "recursive")) { recursive = strdup(arg); continue; } if (!strcmp(key, "recursive-timeout")) { recursive_timeout = strtol(arg, NULL, 10); continue; } if (!strcmp(key, "recursive-port")) { recursive_port = strtol(arg, NULL, 10); continue; } if (!strcmp(key, "statistics")) { stats_timeout = strtol(arg, NULL, 10); continue; } if (!strcmp(key, "listen")) { listenat = strdup(arg); continue; } if (!strcmp(key, "port")) { port = strtol(arg, NULL, 10); continue; } if (!strcmp(key, "chroot")) { chrootdir = strdup(arg); continue; } if (!strcmp(key, "user")) { user = strdup(arg); continue; } if (!strcmp(key, "internal")) { add_internal(arg); continue; } info("Unable to parse '%s'", buf); } fclose(f); return 1; } dnsproxy-1.16/stats.c010064400101230000000000000041401024074722100136410ustar00arminwheel/* $Id: stats.c,v 1.10 2004/04/05 12:47:07 armin Exp $ */ /* * Copyright (c) 2003,2004 Armin Wolfermann * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #include #include #include #include "dnsproxy.h" static struct event timeout; static struct timeval tv; /* ARGSUSED */ static void statistics_timeout(int fd, short event, void *arg) { /* reschedule timer event */ if (event_add(&timeout, &tv) == -1) fatal("event_add: %s", strerror(errno)); /* print statistics */ info("ActiveQr AuthorQr RecursQr AllQuery Answered"); info("%8ld %8ld %8ld %8ld %8ld", active_queries, authoritative_queries, recursive_queries, all_queries, answered_queries); info("TimeoutQ DroppedQ DroppedA LateAnsw HashColl"); info("%8ld %8ld %8ld %8ld %8ld", removed_queries, dropped_queries, dropped_answers, late_answers, hash_collisions); } void statistics_start(void) { if (stats_timeout > 0) { tv.tv_sec=stats_timeout; tv.tv_usec=0; evtimer_set(&timeout, statistics_timeout, NULL); if (evtimer_add(&timeout, &tv) == -1) fatal("evtimer_add: %s", strerror(errno)); } }