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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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See \`config.log' for more details." >&2;} { (exit 1); exit 1; }; } fi fi fi echo "$as_me:$LINENO: result: yes" >&5 echo "${ECHO_T}yes" >&6 rm -f a.out a.exe conftest$ac_cv_exeext b.out ac_clean_files=$ac_clean_files_save # Check the compiler produces executables we can run. If not, either # the compiler is broken, or we cross compile. echo "$as_me:$LINENO: checking whether we are cross compiling" >&5 echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6 echo "$as_me:$LINENO: result: $cross_compiling" >&5 echo "${ECHO_T}$cross_compiling" >&6 echo "$as_me:$LINENO: checking for suffix of executables" >&5 echo $ECHO_N "checking for suffix of executables... $ECHO_C" >&6 if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 (eval $ac_link) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; then # If both `conftest.exe' and `conftest' are `present' (well, observable) # catch `conftest.exe'. 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echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; then for ac_file in `(ls conftest.o conftest.obj; ls conftest.*) 2>/dev/null`; do case $ac_file in *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg ) ;; *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'` break;; esac done else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 { { echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile See \`config.log' for more details." >&5 echo "$as_me: error: cannot compute suffix of object files: cannot compile See \`config.log' for more details." >&2;} { (exit 1); exit 1; }; } fi rm -f conftest.$ac_cv_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_objext" >&5 echo "${ECHO_T}$ac_cv_objext" >&6 OBJEXT=$ac_cv_objext ac_objext=$OBJEXT echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5 echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6 if test "${ac_cv_c_compiler_gnu+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 () { #ifndef __GNUC__ choke me #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 $ac_status); }; }; then ac_compiler_gnu=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_compiler_gnu=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext ac_cv_c_compiler_gnu=$ac_compiler_gnu fi echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5 echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6 GCC=`test $ac_compiler_gnu = yes && echo yes` ac_test_CFLAGS=${CFLAGS+set} ac_save_CFLAGS=$CFLAGS CFLAGS="-g" echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5 echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6 if test "${ac_cv_prog_cc_g+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 () { ; 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 $ac_status); }; }; then ac_cv_prog_cc_g=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_prog_cc_g=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5 echo "${ECHO_T}$ac_cv_prog_cc_g" >&6 if test "$ac_test_CFLAGS" = set; then CFLAGS=$ac_save_CFLAGS elif test $ac_cv_prog_cc_g = yes; then if test "$GCC" = yes; then CFLAGS="-g -O2" else CFLAGS="-g" fi else if test "$GCC" = yes; then CFLAGS="-O2" else CFLAGS= fi fi echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5 echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6 if test "${ac_cv_prog_cc_stdc+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_cv_prog_cc_stdc=no ac_save_CC=$CC cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include #include #include #include /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ struct buf { int x; }; FILE * (*rcsopen) (struct buf *, struct stat *, int); static char *e (p, i) char **p; int i; { return p[i]; } static char *f (char * (*g) (char **, int), char **p, ...) { char *s; va_list v; va_start (v,p); s = g (p, va_arg (v,int)); va_end (v); return s; } /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has function prototypes and stuff, but not '\xHH' hex character constants. These don't provoke an error unfortunately, instead are silently treated as 'x'. The following induces an error, until -std1 is added to get proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an array size at least. It's necessary to write '\x00'==0 to get something that's true only with -std1. */ int osf4_cc_array ['\x00' == 0 ? 1 : -1]; int test (int i, double x); struct s1 {int (*f) (int a);}; struct s2 {int (*f) (double a);}; int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); int argc; char **argv; int main () { return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; ; return 0; } _ACEOF # Don't try gcc -ansi; that turns off useful extensions and # breaks some systems' header files. # AIX -qlanglvl=ansi # Ultrix and OSF/1 -std1 # HP-UX 10.20 and later -Ae # HP-UX older versions -Aa -D_HPUX_SOURCE # SVR4 -Xc -D__EXTENSIONS__ for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" do CC="$ac_save_CC $ac_arg" rm -f conftest.$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 $ac_status); }; }; then ac_cv_prog_cc_stdc=$ac_arg break else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 fi rm -f conftest.err conftest.$ac_objext done rm -f conftest.$ac_ext conftest.$ac_objext CC=$ac_save_CC fi case "x$ac_cv_prog_cc_stdc" in x|xno) echo "$as_me:$LINENO: result: none needed" >&5 echo "${ECHO_T}none needed" >&6 ;; *) echo "$as_me:$LINENO: result: $ac_cv_prog_cc_stdc" >&5 echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6 CC="$CC $ac_cv_prog_cc_stdc" ;; esac # Some people use a C++ compiler to compile C. Since we use `exit', # in C++ we need to declare it. In case someone uses the same compiler # for both compiling C and C++ we need to have the C++ compiler decide # the declaration of exit, since it's the most demanding environment. cat >conftest.$ac_ext <<_ACEOF #ifndef __cplusplus choke me #endif _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 $ac_status); }; }; then for ac_declaration in \ '' \ 'extern "C" void std::exit (int) throw (); using std::exit;' \ 'extern "C" void std::exit (int); using std::exit;' \ 'extern "C" void exit (int) throw ();' \ 'extern "C" void exit (int);' \ 'void exit (int);' do cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ $ac_declaration #include int main () { exit (42); ; return 0; } _ACEOF rm -f conftest.$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 $ac_status); }; }; then : else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 continue fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ $ac_declaration int main () { exit (42); ; return 0; } _ACEOF rm -f conftest.$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 $ac_status); }; }; then break else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext done rm -f conftest* if test -n "$ac_declaration"; then echo '#ifdef __cplusplus' >>confdefs.h echo $ac_declaration >>confdefs.h echo '#endif' >>confdefs.h fi else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext ac_ext=c ac_cpp='$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 # Add -Wall for gcc if test "$ac_compiler_gnu" = "yes"; then CFLAGS="$CFLAGS -Wall" fi # Check whether --with-ssh or --without-ssh was given. if test "${with_ssh+set}" = set; then withval="$with_ssh" fi; if test -z "$ac_cv_path_ssh"; then # Extract the first word of "ssh", so it can be a program name with args. set dummy ssh; 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_path_ssh+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else case $ssh in [\\/]* | ?:[\\/]*) ac_cv_path_ssh="$ssh" # Let the user override the test with a path. ;; *) 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_path_ssh="$as_dir/$ac_word$ac_exec_ext" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done ;; esac fi ssh=$ac_cv_path_ssh if test -n "$ssh"; then echo "$as_me:$LINENO: result: $ssh" >&5 echo "${ECHO_T}$ssh" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi fi if test -n "$ac_cv_path_ssh"; then cat >>confdefs.h <<_ACEOF #define PATH_SSH "$ac_cv_path_ssh" _ACEOF else { { echo "$as_me:$LINENO: error: ssh program not found! Modify PATH, or use --with-ssh." >&5 echo "$as_me: error: ssh program not found! Modify PATH, or use --with-ssh." >&2;} { (exit 1); exit 1; }; } fi path_ssh="$ac_cv_path_ssh" # Checks for libraries. # 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 { (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 "$ac_cpp_err"; then : else echo "$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 non-existent headers # can be detected and how. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include _ACEOF if { (eval echo "$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 "$ac_cpp_err"; then # Broken: success on invalid input. continue else echo "$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 { (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 "$ac_cpp_err"; then : else echo "$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 non-existent headers # can be detected and how. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include _ACEOF if { (eval echo "$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 "$ac_cpp_err"; then # Broken: success on invalid input. continue else echo "$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 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 for sys/wait.h that is POSIX.1 compatible" >&5 echo $ECHO_N "checking for sys/wait.h that is POSIX.1 compatible... $ECHO_C" >&6 if test "${ac_cv_header_sys_wait_h+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 #ifndef WEXITSTATUS # define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8) #endif #ifndef WIFEXITED # define WIFEXITED(stat_val) (((stat_val) & 255) == 0) #endif int main () { int s; wait (&s); s = WIFEXITED (s) ? WEXITSTATUS (s) : 1; ; 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 $ac_status); }; }; then ac_cv_header_sys_wait_h=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_header_sys_wait_h=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_header_sys_wait_h" >&5 echo "${ECHO_T}$ac_cv_header_sys_wait_h" >&6 if test $ac_cv_header_sys_wait_h = yes; then cat >>confdefs.h <<\_ACEOF #define HAVE_SYS_WAIT_H 1 _ACEOF fi # On IRIX 5.3, sys/types and inttypes.h are conflicting. for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ inttypes.h stdint.h unistd.h do as_ac_Header=`echo "ac_cv_header_$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 $ac_compile) 2>conftest.er1 ac_status=$? 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 $ac_status); }; }; then eval "$as_ac_Header=yes" else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 eval "$as_ac_Header=no" fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6 if test `eval echo '${'$as_ac_Header'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 _ACEOF fi done for ac_header in arpa/inet.h fcntl.h limits.h netdb.h do as_ac_Header=`echo "ac_cv_header_$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: $ac_header: in the future, the compiler will take precedence" >&2;} ( cat <<\_ASBOX ## ----------------------------------------------- ## ## Report this to Carson Harding ## ## ----------------------------------------------- ## _ASBOX ) | sed "s/^/$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" | $as_tr_cpp` 1 _ACEOF fi done for ac_header in netinet/in.h paths.h stdlib.h string.h sys/socket.h do as_ac_Header=`echo "ac_cv_header_$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: $ac_header: in the future, the compiler will take precedence" >&2;} ( cat <<\_ASBOX ## ----------------------------------------------- ## ## Report this to Carson Harding ## ## ----------------------------------------------- ## _ASBOX ) | sed "s/^/$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" | $as_tr_cpp` 1 _ACEOF fi done for ac_header in sys/time.h syslog.h unistd.h do as_ac_Header=`echo "ac_cv_header_$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: $ac_header: in the future, the compiler will take precedence" >&2;} ( cat <<\_ASBOX ## ----------------------------------------------- ## ## Report this to Carson Harding ## ## ----------------------------------------------- ## _ASBOX ) | sed "s/^/$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" | $as_tr_cpp` 1 _ACEOF fi done # Checks for typedefs, structures, and compiler characteristics. echo "$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 x; /* SunOS 4.1.1 cc rejects this. */ char const *const *ccp; char **p; /* 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"; ccp = &g + (g ? g-g : 0); /* HPUX 7.0 cc rejects these. */ ++ccp; p = (char**) ccp; ccp = (char const *const *) p; { /* SCO 3.2v4 cc rejects this. */ char *t; char const *s = 0 ? (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 inline" >&5 echo $ECHO_N "checking for inline... $ECHO_C" >&6 if test "${ac_cv_c_inline+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_cv_c_inline=no for ac_kw in inline __inline__ __inline; do cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #ifndef __cplusplus typedef int foo_t; static $ac_kw foo_t static_foo () {return 0; } $ac_kw foo_t foo () {return 0; } #endif _ACEOF rm -f conftest.$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 $ac_status); }; }; then ac_cv_c_inline=$ac_kw; 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_ext done fi echo "$as_me:$LINENO: result: $ac_cv_c_inline" >&5 echo "${ECHO_T}$ac_cv_c_inline" >&6 case $ac_cv_c_inline in inline | yes) ;; *) case $ac_cv_c_inline in no) ac_val=;; *) ac_val=$ac_cv_c_inline;; esac cat >>confdefs.h <<_ACEOF #ifndef __cplusplus #define inline $ac_val #endif _ACEOF ;; esac echo "$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. */ $ac_includes_default int main () { if ((size_t *) 0) return 0; if (sizeof (size_t)) return 0; ; return 0; } _ACEOF rm -f conftest.$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 $ac_status); }; }; then ac_cv_type_size_t=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_type_size_t=no fi rm -f conftest.err conftest.$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 $ac_cv_type_size_t = yes; then : else cat >>confdefs.h <<_ACEOF #define size_t unsigned _ACEOF fi echo "$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 $ac_cv_header_time = yes; then cat >>confdefs.h <<\_ACEOF #define TIME_WITH_SYS_TIME 1 _ACEOF fi echo "$as_me:$LINENO: checking whether struct tm is in sys/time.h or time.h" >&5 echo $ECHO_N "checking whether struct tm is in sys/time.h or time.h... $ECHO_C" >&6 if test "${ac_cv_struct_tm+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 int main () { struct tm *tp; tp->tm_sec; ; 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 $ac_status); }; }; then ac_cv_struct_tm=time.h else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_struct_tm=sys/time.h fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_struct_tm" >&5 echo "${ECHO_T}$ac_cv_struct_tm" >&6 if test $ac_cv_struct_tm = sys/time.h; then cat >>confdefs.h <<\_ACEOF #define TM_IN_SYS_TIME 1 _ACEOF fi echo "$as_me:$LINENO: checking for working volatile" >&5 echo $ECHO_N "checking for working volatile... $ECHO_C" >&6 if test "${ac_cv_c_volatile+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 () { volatile int x; int * volatile y; ; 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 $ac_status); }; }; then ac_cv_c_volatile=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_c_volatile=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_c_volatile" >&5 echo "${ECHO_T}$ac_cv_c_volatile" >&6 if test $ac_cv_c_volatile = no; then cat >>confdefs.h <<\_ACEOF #define volatile _ACEOF fi echo "$as_me:$LINENO: checking for socklen_t" >&5 echo $ECHO_N "checking for socklen_t... $ECHO_C" >&6 if test "${ac_cv_type_socklen_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. */ #ifdef HAVE_SYS_TYPES_H # include #endif #ifdef HAVE_SYS_SOCKET_H # include #endif #ifdef HAVE_ARPA_INET_H # include #endif int main () { if ((socklen_t *) 0) return 0; if (sizeof (socklen_t)) 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 $ac_status); }; }; then ac_cv_type_socklen_t=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_type_socklen_t=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_type_socklen_t" >&5 echo "${ECHO_T}$ac_cv_type_socklen_t" >&6 if test $ac_cv_type_socklen_t = yes; then cat >>confdefs.h <<\_ACEOF #define HAVE_SOCKLEN_T 1 _ACEOF fi echo "$as_me:$LINENO: checking for struct addrinfo" >&5 echo $ECHO_N "checking for struct addrinfo... $ECHO_C" >&6 if test "${ac_cv_type_struct_addrinfo+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_NETDB_H # include #endif int main () { if ((struct addrinfo *) 0) return 0; if (sizeof (struct addrinfo)) 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 $ac_status); }; }; then ac_cv_type_struct_addrinfo=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_type_struct_addrinfo=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_type_struct_addrinfo" >&5 echo "${ECHO_T}$ac_cv_type_struct_addrinfo" >&6 if test $ac_cv_type_struct_addrinfo = yes; then cat >>confdefs.h <<\_ACEOF #define HAVE_ADDRINFO 1 _ACEOF fi echo "$as_me:$LINENO: checking for u_int16_t" >&5 echo $ECHO_N "checking for u_int16_t... $ECHO_C" >&6 if test "${ac_cv_type_u_int16_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. */ #ifdef HAVE_SYS_TYPES_H # include #endif int main () { if ((u_int16_t *) 0) return 0; if (sizeof (u_int16_t)) 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 $ac_status); }; }; then ac_cv_type_u_int16_t=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_type_u_int16_t=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_type_u_int16_t" >&5 echo "${ECHO_T}$ac_cv_type_u_int16_t" >&6 if test $ac_cv_type_u_int16_t = yes; then cat >>confdefs.h <<\_ACEOF #define HAVE_U_INT16_T 1 _ACEOF fi echo "$as_me:$LINENO: checking for uint16_t" >&5 echo $ECHO_N "checking for uint16_t... $ECHO_C" >&6 if test "${ac_cv_type_uint16_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. */ #ifdef HAVE_SYS_TYPES_H # include #endif int main () { if ((uint16_t *) 0) return 0; if (sizeof (uint16_t)) 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 $ac_status); }; }; then ac_cv_type_uint16_t=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_type_uint16_t=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_type_uint16_t" >&5 echo "${ECHO_T}$ac_cv_type_uint16_t" >&6 if test $ac_cv_type_uint16_t = yes; then cat >>confdefs.h <<\_ACEOF #define HAVE_UINT16_T 1 _ACEOF fi echo "$as_me:$LINENO: checking whether LOG_PERROR is declared" >&5 echo $ECHO_N "checking whether LOG_PERROR is declared... $ECHO_C" >&6 if test "${ac_cv_have_decl_LOG_PERROR+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_SYSLOG_H # include #endif int main () { #ifndef LOG_PERROR char *p = (char *) LOG_PERROR; #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 $ac_status); }; }; then ac_cv_have_decl_LOG_PERROR=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_have_decl_LOG_PERROR=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_have_decl_LOG_PERROR" >&5 echo "${ECHO_T}$ac_cv_have_decl_LOG_PERROR" >&6 if test $ac_cv_have_decl_LOG_PERROR = yes; then cat >>confdefs.h <<\_ACEOF #define HAVE_LOG_PERROR 1 _ACEOF fi # Checks for library functions. echo "$as_me:$LINENO: checking for pid_t" >&5 echo $ECHO_N "checking for pid_t... $ECHO_C" >&6 if test "${ac_cv_type_pid_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. */ $ac_includes_default int main () { if ((pid_t *) 0) return 0; if (sizeof (pid_t)) return 0; ; return 0; } _ACEOF rm -f conftest.$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 $ac_status); }; }; then ac_cv_type_pid_t=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_type_pid_t=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_type_pid_t" >&5 echo "${ECHO_T}$ac_cv_type_pid_t" >&6 if test $ac_cv_type_pid_t = yes; then : else cat >>confdefs.h <<_ACEOF #define pid_t int _ACEOF fi for ac_header in unistd.h vfork.h do as_ac_Header=`echo "ac_cv_header_$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: $ac_header: in the future, the compiler will take precedence" >&2;} ( cat <<\_ASBOX ## ----------------------------------------------- ## ## Report this to Carson Harding ## ## ----------------------------------------------- ## _ASBOX ) | sed "s/^/$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" | $as_tr_cpp` 1 _ACEOF fi done for ac_func in fork vfork do as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh` echo "$as_me:$LINENO: checking for $ac_func" >&5 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6 if eval "test \"\${$as_ac_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 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 $ac_func (); /* The GNU C library defines this for functions which it implements to always fail with ENOSYS. Some functions are actually named something starting with __ and the normal name is an alias. */ #if defined (__stub_$ac_func) || defined (__stub___$ac_func) choke me #else char (*f) () = $ac_func; #endif #ifdef __cplusplus } #endif int main () { return f != $ac_func; ; return 0; } _ACEOF rm -f conftest.$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 $ac_status); }; }; then eval "$as_ac_var=yes" else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 eval "$as_ac_var=no" fi rm -f conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5 echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6 if test `eval echo '${'$as_ac_var'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1 _ACEOF fi done if test "x$ac_cv_func_fork" = xyes; then echo "$as_me:$LINENO: checking for working fork" >&5 echo $ECHO_N "checking for working fork... $ECHO_C" >&6 if test "${ac_cv_func_fork_works+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test "$cross_compiling" = yes; then ac_cv_func_fork_works=cross else cat >conftest.$ac_ext <<_ACEOF /* By Ruediger Kuhlmann. */ #include #if HAVE_UNISTD_H # include #endif /* Some systems only have a dummy stub for fork() */ int main () { if (fork() < 0) exit (1); exit (0); } _ACEOF rm -f conftest$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 $ac_status); }; }; then ac_cv_func_fork_works=yes else echo "$as_me: program exited with status $ac_status" >&5 echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ( exit $ac_status ) ac_cv_func_fork_works=no fi rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext fi fi echo "$as_me:$LINENO: result: $ac_cv_func_fork_works" >&5 echo "${ECHO_T}$ac_cv_func_fork_works" >&6 else ac_cv_func_fork_works=$ac_cv_func_fork fi if test "x$ac_cv_func_fork_works" = xcross; then case $host in *-*-amigaos* | *-*-msdosdjgpp*) # Override, as these systems have only a dummy fork() stub ac_cv_func_fork_works=no ;; *) ac_cv_func_fork_works=yes ;; esac { echo "$as_me:$LINENO: WARNING: result $ac_cv_func_fork_works guessed because of cross compilation" >&5 echo "$as_me: WARNING: result $ac_cv_func_fork_works guessed because of cross compilation" >&2;} fi ac_cv_func_vfork_works=$ac_cv_func_vfork if test "x$ac_cv_func_vfork" = xyes; then echo "$as_me:$LINENO: checking for working vfork" >&5 echo $ECHO_N "checking for working vfork... $ECHO_C" >&6 if test "${ac_cv_func_vfork_works+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test "$cross_compiling" = yes; then ac_cv_func_vfork_works=cross else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* Thanks to Paul Eggert for this test. */ #include #include #include #include #include #if HAVE_UNISTD_H # include #endif #if HAVE_VFORK_H # include #endif /* On some sparc systems, changes by the child to local and incoming argument registers are propagated back to the parent. The compiler is told about this with #include , but some compilers (e.g. gcc -O) don't grok . Test for this by using a static variable whose address is put into a register that is clobbered by the vfork. */ static void #ifdef __cplusplus sparc_address_test (int arg) # else sparc_address_test (arg) int arg; #endif { static pid_t child; if (!child) { child = vfork (); if (child < 0) { perror ("vfork"); _exit(2); } if (!child) { arg = getpid(); write(-1, "", 0); _exit (arg); } } } int main () { pid_t parent = getpid (); pid_t child; sparc_address_test (0); child = vfork (); if (child == 0) { /* Here is another test for sparc vfork register problems. This test uses lots of local variables, at least as many local variables as main has allocated so far including compiler temporaries. 4 locals are enough for gcc 1.40.3 on a Solaris 4.1.3 sparc, but we use 8 to be safe. A buggy compiler should reuse the register of parent for one of the local variables, since it will think that parent can't possibly be used any more in this routine. Assigning to the local variable will thus munge parent in the parent process. */ pid_t p = getpid(), p1 = getpid(), p2 = getpid(), p3 = getpid(), p4 = getpid(), p5 = getpid(), p6 = getpid(), p7 = getpid(); /* Convince the compiler that p..p7 are live; otherwise, it might use the same hardware register for all 8 local variables. */ if (p != p1 || p != p2 || p != p3 || p != p4 || p != p5 || p != p6 || p != p7) _exit(1); /* On some systems (e.g. IRIX 3.3), vfork doesn't separate parent from child file descriptors. If the child closes a descriptor before it execs or exits, this munges the parent's descriptor as well. Test for this by closing stdout in the child. */ _exit(close(fileno(stdout)) != 0); } else { int status; struct stat st; while (wait(&status) != child) ; exit( /* Was there some problem with vforking? */ child < 0 /* Did the child fail? (This shouldn't happen.) */ || status /* Did the vfork/compiler bug occur? */ || parent != getpid() /* Did the file descriptor bug occur? */ || fstat(fileno(stdout), &st) != 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 $ac_status); }; }; then ac_cv_func_vfork_works=yes else echo "$as_me: program exited with status $ac_status" >&5 echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ( exit $ac_status ) ac_cv_func_vfork_works=no fi rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext fi fi echo "$as_me:$LINENO: result: $ac_cv_func_vfork_works" >&5 echo "${ECHO_T}$ac_cv_func_vfork_works" >&6 fi; if test "x$ac_cv_func_fork_works" = xcross; then ac_cv_func_vfork_works=$ac_cv_func_vfork { echo "$as_me:$LINENO: WARNING: result $ac_cv_func_vfork_works guessed because of cross compilation" >&5 echo "$as_me: WARNING: result $ac_cv_func_vfork_works guessed because of cross compilation" >&2;} fi if test "x$ac_cv_func_vfork_works" = xyes; then cat >>confdefs.h <<\_ACEOF #define HAVE_WORKING_VFORK 1 _ACEOF else cat >>confdefs.h <<\_ACEOF #define vfork fork _ACEOF fi if test "x$ac_cv_func_fork_works" = xyes; then cat >>confdefs.h <<\_ACEOF #define HAVE_WORKING_FORK 1 _ACEOF fi for ac_header in stdlib.h do as_ac_Header=`echo "ac_cv_header_$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: $ac_header: in the future, the compiler will take precedence" >&2;} ( cat <<\_ASBOX ## ----------------------------------------------- ## ## Report this to Carson Harding ## ## ----------------------------------------------- ## _ASBOX ) | sed "s/^/$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 for GNU libc compatible malloc" >&5 echo $ECHO_N "checking for GNU libc compatible malloc... $ECHO_C" >&6 if test "${ac_cv_func_malloc_0_nonnull+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test "$cross_compiling" = yes; then ac_cv_func_malloc_0_nonnull=no else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #if STDC_HEADERS || HAVE_STDLIB_H # include #else char *malloc (); #endif int main () { exit (malloc (0) ? 0 : 1); ; return 0; } _ACEOF rm -f conftest$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 $ac_status); }; }; then ac_cv_func_malloc_0_nonnull=yes else echo "$as_me: program exited with status $ac_status" >&5 echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ( exit $ac_status ) ac_cv_func_malloc_0_nonnull=no fi rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext fi fi echo "$as_me:$LINENO: result: $ac_cv_func_malloc_0_nonnull" >&5 echo "${ECHO_T}$ac_cv_func_malloc_0_nonnull" >&6 if test $ac_cv_func_malloc_0_nonnull = yes; then cat >>confdefs.h <<\_ACEOF #define HAVE_MALLOC 1 _ACEOF else cat >>confdefs.h <<\_ACEOF #define HAVE_MALLOC 0 _ACEOF case $LIBOBJS in "malloc.$ac_objext" | \ *" malloc.$ac_objext" | \ "malloc.$ac_objext "* | \ *" malloc.$ac_objext "* ) ;; *) LIBOBJS="$LIBOBJS malloc.$ac_objext" ;; esac cat >>confdefs.h <<\_ACEOF #define malloc rpl_malloc _ACEOF fi for ac_header in stdlib.h do as_ac_Header=`echo "ac_cv_header_$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: $ac_header: in the future, the compiler will take precedence" >&2;} ( cat <<\_ASBOX ## ----------------------------------------------- ## ## Report this to Carson Harding ## ## ----------------------------------------------- ## _ASBOX ) | sed "s/^/$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 for GNU libc compatible realloc" >&5 echo $ECHO_N "checking for GNU libc compatible realloc... $ECHO_C" >&6 if test "${ac_cv_func_realloc_0_nonnull+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test "$cross_compiling" = yes; then ac_cv_func_realloc_0_nonnull=no else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #if STDC_HEADERS || HAVE_STDLIB_H # include #else char *realloc (); #endif int main () { exit (realloc (0, 0) ? 0 : 1); ; return 0; } _ACEOF rm -f conftest$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 $ac_status); }; }; then ac_cv_func_realloc_0_nonnull=yes else echo "$as_me: program exited with status $ac_status" >&5 echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ( exit $ac_status ) ac_cv_func_realloc_0_nonnull=no fi rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext fi fi echo "$as_me:$LINENO: result: $ac_cv_func_realloc_0_nonnull" >&5 echo "${ECHO_T}$ac_cv_func_realloc_0_nonnull" >&6 if test $ac_cv_func_realloc_0_nonnull = yes; then cat >>confdefs.h <<\_ACEOF #define HAVE_REALLOC 1 _ACEOF else cat >>confdefs.h <<\_ACEOF #define HAVE_REALLOC 0 _ACEOF case $LIBOBJS in "realloc.$ac_objext" | \ *" realloc.$ac_objext" | \ "realloc.$ac_objext "* | \ *" realloc.$ac_objext "* ) ;; *) LIBOBJS="$LIBOBJS realloc.$ac_objext" ;; esac cat >>confdefs.h <<\_ACEOF #define realloc rpl_realloc _ACEOF fi for ac_header in sys/select.h sys/socket.h do as_ac_Header=`echo "ac_cv_header_$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: $ac_header: in the future, the compiler will take precedence" >&2;} ( cat <<\_ASBOX ## ----------------------------------------------- ## ## Report this to Carson Harding ## ## ----------------------------------------------- ## _ASBOX ) | sed "s/^/$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 types of arguments for select" >&5 echo $ECHO_N "checking types of arguments for select... $ECHO_C" >&6 if test "${ac_cv_func_select_args+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else for ac_arg234 in 'fd_set *' 'int *' 'void *'; do for ac_arg1 in 'int' 'size_t' 'unsigned long' 'unsigned'; do for ac_arg5 in 'struct timeval *' 'const struct timeval *'; do cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ $ac_includes_default #if HAVE_SYS_SELECT_H # include #endif #if HAVE_SYS_SOCKET_H # include #endif int main () { extern int select ($ac_arg1, $ac_arg234, $ac_arg234, $ac_arg234, $ac_arg5); ; return 0; } _ACEOF rm -f conftest.$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 $ac_status); }; }; then ac_cv_func_select_args="$ac_arg1,$ac_arg234,$ac_arg5"; break 3 else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext done done done # Provide a safe default value. : ${ac_cv_func_select_args='int,int *,struct timeval *'} fi echo "$as_me:$LINENO: result: $ac_cv_func_select_args" >&5 echo "${ECHO_T}$ac_cv_func_select_args" >&6 ac_save_IFS=$IFS; IFS=',' set dummy `echo "$ac_cv_func_select_args" | sed 's/\*/\*/g'` IFS=$ac_save_IFS shift cat >>confdefs.h <<_ACEOF #define SELECT_TYPE_ARG1 $1 _ACEOF cat >>confdefs.h <<_ACEOF #define SELECT_TYPE_ARG234 ($2) _ACEOF cat >>confdefs.h <<_ACEOF #define SELECT_TYPE_ARG5 ($3) _ACEOF rm -f conftest* for ac_func in strftime do as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh` echo "$as_me:$LINENO: checking for $ac_func" >&5 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6 if eval "test \"\${$as_ac_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 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 $ac_func (); /* The GNU C library defines this for functions which it implements to always fail with ENOSYS. Some functions are actually named something starting with __ and the normal name is an alias. */ #if defined (__stub_$ac_func) || defined (__stub___$ac_func) choke me #else char (*f) () = $ac_func; #endif #ifdef __cplusplus } #endif int main () { return f != $ac_func; ; return 0; } _ACEOF rm -f conftest.$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 $ac_status); }; }; then eval "$as_ac_var=yes" else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 eval "$as_ac_var=no" fi rm -f conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5 echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6 if test `eval echo '${'$as_ac_var'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1 _ACEOF else # strftime is in -lintl on SCO UNIX. echo "$as_me:$LINENO: checking for strftime in -lintl" >&5 echo $ECHO_N "checking for strftime in -lintl... $ECHO_C" >&6 if test "${ac_cv_lib_intl_strftime+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lintl $LIBS" cat >conftest.$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 strftime (); int main () { strftime (); ; 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 $ac_status); }; }; then ac_cv_lib_intl_strftime=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_lib_intl_strftime=no fi rm -f conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi echo "$as_me:$LINENO: result: $ac_cv_lib_intl_strftime" >&5 echo "${ECHO_T}$ac_cv_lib_intl_strftime" >&6 if test $ac_cv_lib_intl_strftime = yes; then cat >>confdefs.h <<\_ACEOF #define HAVE_STRFTIME 1 _ACEOF LIBS="-lintl $LIBS" fi fi done for ac_func in vprintf do as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh` echo "$as_me:$LINENO: checking for $ac_func" >&5 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6 if eval "test \"\${$as_ac_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 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 $ac_func (); /* The GNU C library defines this for functions which it implements to always fail with ENOSYS. Some functions are actually named something starting with __ and the normal name is an alias. */ #if defined (__stub_$ac_func) || defined (__stub___$ac_func) choke me #else char (*f) () = $ac_func; #endif #ifdef __cplusplus } #endif int main () { return f != $ac_func; ; return 0; } _ACEOF rm -f conftest.$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 $ac_status); }; }; then eval "$as_ac_var=yes" else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 eval "$as_ac_var=no" fi rm -f conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5 echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6 if test `eval echo '${'$as_ac_var'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1 _ACEOF echo "$as_me:$LINENO: checking for _doprnt" >&5 echo $ECHO_N "checking for _doprnt... $ECHO_C" >&6 if test "${ac_cv_func__doprnt+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 _doprnt to an innocuous variant, in case declares _doprnt. For example, HP-UX 11i declares gettimeofday. */ #define _doprnt innocuous__doprnt /* System header to define __stub macros and hopefully few prototypes, which can conflict with char _doprnt (); below. Prefer to if __STDC__ is defined, since exists even on freestanding compilers. */ #ifdef __STDC__ # include #else # include #endif #undef _doprnt /* 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 _doprnt (); /* 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__doprnt) || defined (__stub____doprnt) choke me #else char (*f) () = _doprnt; #endif #ifdef __cplusplus } #endif int main () { return f != _doprnt; ; 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 $ac_status); }; }; then ac_cv_func__doprnt=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_func__doprnt=no fi rm -f conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_func__doprnt" >&5 echo "${ECHO_T}$ac_cv_func__doprnt" >&6 if test $ac_cv_func__doprnt = yes; then cat >>confdefs.h <<\_ACEOF #define HAVE_DOPRNT 1 _ACEOF fi fi done for ac_func in alarm daemon dup2 gethostbyname gettimeofday memmove do as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh` echo "$as_me:$LINENO: checking for $ac_func" >&5 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6 if eval "test \"\${$as_ac_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 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 $ac_func (); /* The GNU C library defines this for functions which it implements to always fail with ENOSYS. Some functions are actually named something starting with __ and the normal name is an alias. */ #if defined (__stub_$ac_func) || defined (__stub___$ac_func) choke me #else char (*f) () = $ac_func; #endif #ifdef __cplusplus } #endif int main () { return f != $ac_func; ; return 0; } _ACEOF rm -f conftest.$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 $ac_status); }; }; then eval "$as_ac_var=yes" else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 eval "$as_ac_var=no" fi rm -f conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5 echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6 if test `eval echo '${'$as_ac_var'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_func" | $as_tr_cpp` 1 _ACEOF fi done for ac_func in memset poll select setproctitle socket strchr strerror do as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh` echo "$as_me:$LINENO: checking for $ac_func" >&5 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6 if eval "test \"\${$as_ac_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 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 $ac_func (); /* The GNU C library defines this for functions which it implements to always fail with ENOSYS. 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This is necessary, for # example, in the case of _POSIX_SOURCE, which is predefined and required # on some systems where configure will not decide to define it. cat >>conftest.undefs <<\_ACEOF s,^[ ]*#[ ]*undef[ ][ ]*[a-zA-Z_][a-zA-Z_0-9]*,/* & */, _ACEOF # Break up conftest.defines because some shells have a limit on the size # of here documents, and old seds have small limits too (100 cmds). echo ' # Handle all the #define templates only if necessary.' >>$CONFIG_STATUS echo ' if grep "^[ ]*#[ ]*define" $tmp/in >/dev/null; then' >>$CONFIG_STATUS echo ' # If there are no defines, we may have an empty if/fi' >>$CONFIG_STATUS echo ' :' >>$CONFIG_STATUS rm -f conftest.tail while grep . conftest.defines >/dev/null do # Write a limited-size here document to $tmp/defines.sed. echo ' cat >$tmp/defines.sed <>$CONFIG_STATUS # Speed up: don't consider the non `#define' lines. echo '/^[ ]*#[ ]*define/!b' >>$CONFIG_STATUS # Work around the forget-to-reset-the-flag bug. echo 't clr' >>$CONFIG_STATUS echo ': clr' >>$CONFIG_STATUS sed ${ac_max_here_lines}q conftest.defines >>$CONFIG_STATUS echo 'CEOF sed -f $tmp/defines.sed $tmp/in >$tmp/out rm -f $tmp/in mv $tmp/out $tmp/in ' >>$CONFIG_STATUS sed 1,${ac_max_here_lines}d conftest.defines >conftest.tail rm -f conftest.defines mv conftest.tail conftest.defines done rm -f conftest.defines echo ' fi # grep' >>$CONFIG_STATUS echo >>$CONFIG_STATUS # Break up conftest.undefs because some shells have a limit on the size # of here documents, and old seds have small limits too (100 cmds). echo ' # Handle all the #undef templates' >>$CONFIG_STATUS rm -f conftest.tail while grep . conftest.undefs >/dev/null do # Write a limited-size here document to $tmp/undefs.sed. echo ' cat >$tmp/undefs.sed <>$CONFIG_STATUS # Speed up: don't consider the non `#undef' echo '/^[ ]*#[ ]*undef/!b' >>$CONFIG_STATUS # Work around the forget-to-reset-the-flag bug. echo 't clr' >>$CONFIG_STATUS echo ': clr' >>$CONFIG_STATUS sed ${ac_max_here_lines}q conftest.undefs >>$CONFIG_STATUS echo 'CEOF sed -f $tmp/undefs.sed $tmp/in >$tmp/out rm -f $tmp/in mv $tmp/out $tmp/in ' >>$CONFIG_STATUS sed 1,${ac_max_here_lines}d conftest.undefs >conftest.tail rm -f conftest.undefs mv conftest.tail conftest.undefs done rm -f conftest.undefs cat >>$CONFIG_STATUS <<\_ACEOF # Let's still pretend it is `configure' which instantiates (i.e., don't # use $as_me), people would be surprised to read: # /* config.h. Generated by config.status. */ if test x"$ac_file" = x-; then echo "/* Generated by configure. */" >$tmp/config.h else echo "/* $ac_file. Generated by configure. */" >$tmp/config.h fi cat $tmp/in >>$tmp/config.h rm -f $tmp/in if test x"$ac_file" != x-; then if diff $ac_file $tmp/config.h >/dev/null 2>&1; then { echo "$as_me:$LINENO: $ac_file is unchanged" >&5 echo "$as_me: $ac_file is unchanged" >&6;} else ac_dir=`(dirname "$ac_file") 2>/dev/null || $as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ X"$ac_file" : 'X\(//\)[^/]' \| \ X"$ac_file" : 'X\(//\)$' \| \ X"$ac_file" : 'X\(/\)' \| \ . : '\(.\)' 2>/dev/null || echo X"$ac_file" | sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; } /^X\(\/\/\)[^/].*/{ s//\1/; q; } /^X\(\/\/\)$/{ s//\1/; q; } /^X\(\/\).*/{ s//\1/; q; } s/.*/./; q'` { if $as_mkdir_p; then mkdir -p "$ac_dir" else as_dir="$ac_dir" as_dirs= while test ! -d "$as_dir"; do as_dirs="$as_dir $as_dirs" as_dir=`(dirname "$as_dir") 2>/dev/null || $as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ X"$as_dir" : 'X\(//\)[^/]' \| \ X"$as_dir" : 'X\(//\)$' \| \ X"$as_dir" : 'X\(/\)' \| \ . : '\(.\)' 2>/dev/null || echo X"$as_dir" | sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; } /^X\(\/\/\)[^/].*/{ s//\1/; q; } /^X\(\/\/\)$/{ s//\1/; q; } /^X\(\/\).*/{ s//\1/; q; } s/.*/./; q'` done test ! -n "$as_dirs" || mkdir $as_dirs fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5 echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;} { (exit 1); exit 1; }; }; } rm -f $ac_file mv $tmp/config.h $ac_file fi else cat $tmp/config.h rm -f $tmp/config.h fi done _ACEOF cat >>$CONFIG_STATUS <<\_ACEOF { (exit 0); exit 0; } _ACEOF chmod +x $CONFIG_STATUS ac_clean_files=$ac_clean_files_save # configure is writing to config.log, and then calls config.status. # config.status does its own redirection, appending to config.log. # Unfortunately, on DOS this fails, as config.log is still kept open # by configure, so config.status won't be able to write to it; its # output is simply discarded. 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. $ac_cs_success || { (exit 1); exit 1; } fi autossh-1.4e/configure.ac010064400017500000024000000073071246630602600150460ustar00hardingstaff# -*- Autoconf -*- # Process this file with autoconf to produce a configure script. AC_PREREQ(2.59) AC_INIT(autossh, 1.4, [Carson Harding ]) AC_REVISION($Revision: 1.2 $) AC_CONFIG_SRCDIR([daemon.h]) AC_CONFIG_HEADER([config.h]) AC_CONFIG_FILES([Makefile]) # Checks for programs. AC_PROG_CC # Add -Wall for gcc if test "$ac_compiler_gnu" = "yes"; then CFLAGS="$CFLAGS -Wall" fi AC_ARG_WITH(ssh, AC_HELP_STRING([--with-ssh=ARG], [specify path to ssh executable]), [ac_cv_path_ssh=$withval], [] ) if test -z "$ac_cv_path_ssh"; then AC_PATH_PROG([ssh], [ssh]) fi if test -n "$ac_cv_path_ssh"; then AC_DEFINE_UNQUOTED( PATH_SSH, "$ac_cv_path_ssh", [Set this to the path to your ssh program.] ) else AC_MSG_ERROR([ssh program not found! Modify PATH, or use --with-ssh.]) fi path_ssh="$ac_cv_path_ssh" AC_SUBST(path_ssh) # Checks for libraries. # Checks for header files. AC_HEADER_STDC AC_HEADER_SYS_WAIT AC_CHECK_HEADERS([arpa/inet.h fcntl.h limits.h netdb.h]) AC_CHECK_HEADERS([netinet/in.h paths.h stdlib.h string.h sys/socket.h]) AC_CHECK_HEADERS([sys/time.h syslog.h unistd.h]) # Checks for typedefs, structures, and compiler characteristics. AC_C_CONST AC_C_INLINE AC_TYPE_SIZE_T AC_HEADER_TIME AC_STRUCT_TM AC_C_VOLATILE AC_CHECK_TYPE(socklen_t, AC_DEFINE(HAVE_SOCKLEN_T, 1, [Define to 1 if you have socklen_t.]), [], [ #ifdef HAVE_SYS_TYPES_H # include #endif #ifdef HAVE_SYS_SOCKET_H # include #endif #ifdef HAVE_ARPA_INET_H # include #endif ] ) AC_CHECK_TYPE([struct addrinfo], AC_DEFINE(HAVE_ADDRINFO, 1, [Define to 1 if you have struct addrinfo.]), [], [ #ifdef HAVE_NETDB_H # include #endif ] ) AC_CHECK_TYPE(u_int16_t, AC_DEFINE(HAVE_U_INT16_T, 1, [Define to 1 if you have u_int16_t.]), [], [ #ifdef HAVE_SYS_TYPES_H # include #endif ] ) AC_CHECK_TYPE(uint16_t, AC_DEFINE(HAVE_UINT16_T, 1, [Define to 1 if you have uint16_t.]), [], [ #ifdef HAVE_SYS_TYPES_H # include #endif ] ) AC_CHECK_DECL(LOG_PERROR, AC_DEFINE(HAVE_LOG_PERROR, 1, [Define to 1 if you have LOG_PERROR.]), [], [ #ifdef HAVE_SYSLOG_H # include #endif ] ) # Checks for library functions. AC_FUNC_FORK AC_FUNC_MALLOC AC_FUNC_REALLOC AC_FUNC_SELECT_ARGTYPES AC_FUNC_STRFTIME AC_FUNC_VPRINTF AC_CHECK_FUNCS([alarm daemon dup2 gethostbyname gettimeofday memmove]) AC_CHECK_FUNCS([memset poll select setproctitle socket strchr strerror]) AC_CHECK_FUNCS([strncasecmp strtoul uname vsyslog]) AC_CHECK_LIB(nsl, gethostbyname) AC_CHECK_LIB(socket, connect) # Other checks # Copyright (c) 1999-2004 Damien Miller # # Permission to use, copy, modify, and distribute this software for any # purpose with or without fee is hereby granted, provided that the above # copyright notice and this permission notice appear in all copies. # # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. AC_CACHE_CHECK([if libc defines __progname], ac_cv_libc_defines___progname, [ AC_TRY_LINK([], [ extern char *__progname; printf("%s", __progname); ], [ ac_cv_libc_defines___progname="yes" ], [ ac_cv_libc_defines___progname="no" ] ) ]) if test "x$ac_cv_libc_defines___progname" = "xyes" ; then AC_DEFINE(HAVE___PROGNAME, 1, [Define if libc defines __progname]) fi AC_OUTPUT autossh-1.4e/autossh.c010064400017500000024000001160121246630602600144040ustar00hardingstaff/* * Start an ssh session (or tunnel) and monitor it. * If it fails or blocks, restart it. * * From the example of rstunnel. * * Copyright (c) Carson Harding, 2002-2008. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are freely permitted. * * 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 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. * */ #include "config.h" #include #include #ifndef HAVE_SOCKLEN_T typedef int32_t socklen_t; #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef HAVE_POLL # ifdef HAVE_SELECT # include "fakepoll.h" # else # error "System lacks both select() and poll()!" # endif #else # include #endif #ifndef __attribute__ # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__ # define __attribute__(x) # endif #endif #ifndef _PATH_DEVNULL # define _PATH_DEVNULL "/dev/null" #endif #ifndef HAVE_DAEMON # include "daemon.h" #endif #ifdef HAVE___PROGNAME extern char *__progname; #else char *__progname; #endif const char *rcsid = "$Id: autossh.c,v 1.84 2015/02/10 04:31:16 harding Exp $"; #ifndef SSH_PATH # define SSH_PATH "/usr/bin/ssh" #endif #define POLL_TIME 600 /* 10 minutes default */ #define GATE_TIME 30 /* 30 seconds default */ #define MAX_LIFETIME 0 /* default max lifetime of forever */ #define TIMEO_NET 15000 /* poll on accept() and io (msecs) */ #define MAX_CONN_TRIES 3 /* how many attempts */ #define MAX_START (-1) /* max # of runs; <0 == forever */ #define MAX_MESSAGE 64 /* max length of message we can add */ #define P_CONTINUE 0 /* continue monitoring */ #define P_RESTART 1 /* restart ssh process */ #define P_EXIT 2 /* exit */ #define L_FILELOG 0x01 /* log to file */ #define L_SYSLOG 0x02 /* log to syslog */ #define NO_RD_SOCK -2 /* magic flag for echo: no read socket */ #define OPTION_STRING "M:V1246ab:c:e:fgi:kl:m:no:p:qstvw:xyACD:F:I:MKL:NO:PR:S:TVXY" int logtype = L_SYSLOG; /* default log to syslog */ int loglevel = LOG_INFO; /* default loglevel */ int syslog_perror; /* use PERROR option? */ FILE *flog; /* log file */ char *writep; /* write port as string */ char readp[16]; /* read port as string */ char *echop; /* echo port as string */ char *mhost = "127.0.0.1"; /* host in port forwards */ char *env_port; /* port spec'd in environment */ char *echo_message = ""; /* message to append to echo string */ char *pid_file_name; /* path to pid file */ int pid_file_created; /* we have created pid file */ time_t pid_start_time; /* time autossh process started */ int poll_time = POLL_TIME; /* default connection poll time */ int first_poll_time = POLL_TIME; /* initial connection poll time */ double gate_time = GATE_TIME; /* time to "make it out of the gate" */ int max_start = MAX_START; /* how many times to run (default no limit) */ double max_lifetime = MAX_LIFETIME; /* how long can the process/daemon live */ int net_timeout = TIMEO_NET; /* timeout on network data */ char *ssh_path = SSH_PATH; /* default path to ssh */ int start_count; /* # of times exec()d ssh */ time_t start_time; /* time we exec()d ssh */ #if defined(__CYGWIN__) int ntservice; /* set some stuff for running as nt service */ #endif int newac; /* argc, argv for ssh */ char **newav; #define START_AV_SZ 16 int cchild; /* current child */ volatile sig_atomic_t restart_ssh; /* signalled to restart ssh child */ volatile sig_atomic_t dolongjmp; sigjmp_buf jumpbuf; void usage(int code) __attribute__ ((__noreturn__)); void get_env_args(void); void add_arg(char *s); void strip_arg(char *arg, char ch, char *opts); void ssh_run(int sock, char **argv); int ssh_watch(int sock); int ssh_wait(int options); void ssh_kill(void); int conn_test(int sock, char *host, char *write_port); int conn_poll_for_accept(int sock, struct pollfd *pfd); int conn_send_and_receive(char *rp, char *wp, size_t len, struct pollfd *pfd, int ntopoll); #ifndef HAVE_ADDRINFO void conn_addr(char *host, char *port, struct sockaddr_in *resp); #else void conn_addr(char *host, char *port, struct addrinfo **resp); #endif int conn_listen(char *host, char *port); int conn_remote(char *host, char *port); void grace_time(time_t last_start); void unlink_pid_file(void); void errlog(int level, char *fmt, ...) __attribute__ ((__format__ (__printf__, 2, 3))); void xerrlog(int level, char *fmt, ...) __attribute__ ((__format__ (__printf__, 2, 3))); void doerrlog(int level, char *fmt, va_list ap); char *timestr(void); void sig_catch(int sig); int exceeded_lifetime(void); void usage(int code) { fprintf(code ? stderr : stdout, "usage: %s [-V] [-M monitor_port[:echo_port]] [-f] [SSH_OPTIONS]\n", __progname); if (code) { fprintf(stderr, "\n"); fprintf(stderr, " -M specifies monitor port. May be overridden by" " environment\n" " variable AUTOSSH_PORT. 0 turns monitoring" " loop off.\n" " Alternatively, a port for an echo service on" " the remote\n" " machine may be specified. (Normally port 7.)\n"); fprintf(stderr, " -f run in background (autossh handles this, and" " does not\n" " pass it to ssh.)\n"); fprintf(stderr, " -V print autossh version and exit.\n"); fprintf(stderr, "\n"); fprintf(stderr, "Environment variables are:\n"); fprintf(stderr, " AUTOSSH_GATETIME " "- how long must an ssh session be established\n" " " " before we decide it really was established\n" " " " (in seconds). Default is %d seconds; use of -f\n" " " " flag sets this to 0.\n", GATE_TIME); fprintf(stderr, " AUTOSSH_LOGFILE " "- file to log to (default is to use the syslog\n" " " " facility)\n"); fprintf(stderr, " AUTOSSH_LOGLEVEL " "- level of log verbosity\n"); fprintf(stderr, " AUTOSSH_MAXLIFETIME " "- set the maximum time to live (seconds)\n"); fprintf(stderr, " AUTOSSH_MAXSTART " "- max times to restart (default is no limit)\n"); fprintf(stderr, " AUTOSSH_MESSAGE " "- message to append to echo string (max 64 bytes)\n"); #if defined(__CYGWIN__) fprintf(stderr, " AUTOSSH_NTSERVICE " "- tweak some things for running under cygrunsrv\n"); #endif fprintf(stderr, " AUTOSSH_PATH " "- path to ssh if not default\n"); fprintf(stderr, " AUTOSSH_PIDFILE " "- write pid to this file\n"); fprintf(stderr, " AUTOSSH_POLL " "- how often to check the connection (seconds)\n"); fprintf(stderr, " AUTOSSH_FIRST_POLL " "- time before first connection check (seconds)\n"); fprintf(stderr, " AUTOSSH_PORT " "- port to use for monitor connection\n"); fprintf(stderr, " AUTOSSH_DEBUG " "- turn logging to maximum verbosity and log to\n" " " " stderr\n"); fprintf(stderr, "\n"); } exit(code); } int main(int argc, char **argv) { int i; int n; int ch; char *s; int wp, rp, ep = 0; char wmbuf[256], rmbuf[256]; FILE *pid_file; int sock = -1; int done_fwds = 0; int runasdaemon = 0; int sawargstop = 0; #if defined(__CYGWIN__) int sawoptionn = 0; #endif #ifndef HAVE___PROGNAME __progname = "autossh"; #endif /* * set up options from environment */ get_env_args(); /* * We accept all ssh args, and quietly pass them on * to ssh when we call it. */ while ((ch = getopt(argc, argv, OPTION_STRING)) != -1) { switch(ch) { case 'M': if (!env_port) writep = optarg; break; case 'V': fprintf(stdout, "%s %s\n", __progname, VER); exit(0); break; case 'f': runasdaemon = 1; break; #if defined(__CYGWIN__) case 'N': sawoptionn = 1; break; #endif case '?': usage(1); break; default: /* other options get passed to ssh */ break; } } /* if we got it from the environment */ if (env_port) writep = env_port; /* * We must at least have a monitor port and a remote host. */ if (env_port) { if (argc < 2) usage(1); } else if (!writep || argc < 4) usage(1); if (logtype & L_SYSLOG) openlog(__progname, LOG_PID|syslog_perror, LOG_USER); /* * Check for echo port */ if ((s = strchr(writep, ':')) != NULL) { *s = '\0'; echop = s + 1; ep = strtoul(echop, &s, 0); if (*echop == '\0' || *s != '\0' || ep == 0) xerrlog(LOG_ERR, "invalid echo port \"%s\"", echop); } /* * Check, and get the read port (write port + 1); * then construct port-forwarding arguments for ssh. */ wp = strtoul(writep, &s, 0); if (*writep == '\0' || *s != '\0') xerrlog(LOG_ERR, "invalid port \"%s\"", writep); if (wp == 0) { errlog(LOG_INFO, "port set to 0, monitoring disabled"); writep = NULL; } else if (wp > 65534 || wp < 0) xerrlog(LOG_ERR, "monitor port (%d) out of range", wp); else { rp = wp+1; /* all this for solaris; we could use asprintf() */ (void)snprintf(readp, sizeof(readp), "%d", rp); /* port-forward arg strings */ n = snprintf(wmbuf, sizeof(wmbuf), "%d:%s:%d", wp, mhost, echop ? ep : wp); if (n > sizeof(wmbuf)) xerrlog(LOG_ERR, "overflow building forwarding string"); if (!echop) { n = snprintf(rmbuf, sizeof(rmbuf), "%d:%s:%d", wp, mhost, rp); if (n > sizeof(rmbuf)) xerrlog(LOG_ERR, "overflow building forwarding string"); } } /* * Adjust timeouts if necessary: net_timeout is first * the timeout for accept and then for io, so if the * poll_time is set less than 2 timeouts, the timeouts need * to be adjusted to be at least 1/2. Perhaps there should be * be some padding here as well.... */ if ((poll_time * 1000) / 2 < net_timeout) { net_timeout = (poll_time * 1000) / 2; errlog(LOG_INFO, "short poll time: adjusting net timeouts to %d", net_timeout); } /* * Build a new arg list, skipping -f, -M and inserting * port forwards. */ add_arg(ssh_path); #if defined(__CYGWIN__) if (ntservice && !sawoptionn) add_arg("-N"); #endif for (i = 1; i < argc; i++) { /* * We step past the first '--', taking it as ours * (autossh's). Any further ones we pass to ssh. */ if (argv[i][0] == '-' && argv[i][1] == '-') { if (!sawargstop) { sawargstop = 1; continue; } } if (wp && env_port && !done_fwds) { add_arg("-L"); add_arg(wmbuf); if (!echop) { add_arg("-R"); add_arg(rmbuf); } done_fwds = 1; } else if (!sawargstop && argv[i][0] == '-' && argv[i][1] == 'M') { if (argv[i][2] == '\0') i++; if (wp && !done_fwds) { add_arg("-L"); add_arg(wmbuf); if (!echop) { add_arg("-R"); add_arg(rmbuf); } done_fwds = 1; } continue; } /* look for -f in option args and strip out */ strip_arg(argv[i], 'f', OPTION_STRING); add_arg(argv[i]); } if (runasdaemon) { if (daemon(0, 0) == -1) { xerrlog(LOG_ERR, "run as daemon failed: %s", strerror(errno)); } /* * If running as daemon, the user likely wants it * to just run and not fail early (perhaps machines * are coming up, etc.) */ gate_time = 0; } /* * Only if we're doing the network monitor thing. * Socket once opened stays open for listening for * the duration of the program. */ if (writep) { if (!echop) { sock = conn_listen(mhost, readp); /* set close-on-exec */ (void)fcntl(sock, F_SETFD, FD_CLOEXEC); } else sock = NO_RD_SOCK; } if (pid_file_name) { pid_file = fopen(pid_file_name, "w"); if (!pid_file) { xerrlog(LOG_ERR, "cannot open pid file \"%s\": %s", pid_file_name, strerror(errno)); } pid_file_created = 1; atexit(unlink_pid_file); if (fprintf(pid_file, "%d\n", (int)getpid()) == 0) xerrlog(LOG_ERR, "write failed to pid file \"%s\": %s", pid_file_name, strerror(errno)); fflush(pid_file); fclose(pid_file); } ssh_run(sock, newav); if (sock >= 0) { shutdown(sock, SHUT_RDWR); close(sock); } if (logtype & L_SYSLOG) closelog(); exit(0); } /* * Add an argument to the argument array. */ void add_arg(char *s) { char *p; size_t len; static size_t newamax = START_AV_SZ; len = strlen(s); if (len == 0) return; if (!newav) { newav = calloc(START_AV_SZ, sizeof(char *)); if (!newav) xerrlog(LOG_ERR, "malloc: %s", strerror(errno)); } else if (newac >= newamax-1) { newamax *= 2; newav = realloc(newav, newamax * sizeof(char *)); if (!newav) xerrlog(LOG_ERR, "realloc: %s", strerror(errno)); } p = malloc(len+1); if (!p) xerrlog(LOG_ERR, "malloc: %s", strerror(errno)); memmove(p, s, len); p[len] = '\0'; newav[newac++] = p; newav[newac] = NULL; return; } /* * strip an argument option from an option string; strings that * end up with just a '-' become zero length (add_arg() will * skip them). An option that enters as '-' is untouched. * */ void strip_arg(char *arg, char ch, char *opts) { char *f, *o; size_t len; if (arg[0] == '-' && arg[1] != '\0') { for (len = strlen(arg), f = arg; *f != '\0'; f++, len--) { /* * If f in option string and next char is ':' then * what follows is a parameter to the flag, and * what we're stripping may be valid in it. We do * not validate f in opts: that is really someone * else's job, and the options may change. In that * case, this provides a best effort. This is * terribly inefficient. */ if ((o = strchr(opts, *f)) != NULL) { if (*(o+1) == ':') return; } if (*f == ch) (void)memmove(f, f+1, len); } /* left with "-" alone? then truncate */ if (arg[1] == '\0') arg[0] = '\0'; } return; } /* * Ugly, but as we've used so many command args... */ void get_env_args(void) { char *s; char *t; if ((s = getenv("AUTOSSH_PATH")) != NULL) ssh_path = s; if ((s = getenv("AUTOSSH_DEBUG")) != NULL) { #ifdef HAVE_LOG_PERROR syslog_perror = LOG_PERROR; #else syslog_perror = 0; logtype |= L_FILELOG; flog = stderr; #endif loglevel = LOG_DEBUG; } else if ((s = getenv("AUTOSSH_LOGLEVEL")) != NULL) { loglevel = strtoul(s, &t, 0); if (*s == '\0' || *t != '\0' || loglevel < LOG_EMERG || loglevel > LOG_DEBUG) xerrlog(LOG_ERR, "invalid log level \"%s\"", s); } if ((s = getenv("AUTOSSH_POLL")) != NULL) { poll_time = strtoul(s, &t, 0); if (*s == '\0' || poll_time == 0 || *t != '\0' ) xerrlog(LOG_ERR, "invalid poll time \"%s\"", s); if (poll_time <= 0) poll_time = POLL_TIME; } if ((s = getenv("AUTOSSH_FIRST_POLL")) != NULL) { first_poll_time = strtoul(s, &t, 0); if (*s == '\0' || first_poll_time == 0 || *t != '\0' ) xerrlog(LOG_ERR, "invalid first poll time \"%s\"", s); if (first_poll_time <= 0) first_poll_time = POLL_TIME; } else { /* * If first poll time not explicitly set, first * poll time should equal poll time. */ first_poll_time = poll_time; } if ((s = getenv("AUTOSSH_GATETIME")) != NULL) { gate_time = (double)strtol(s, &t, 0); if (*s == '\0' || gate_time < 0 || *t != '\0' ) xerrlog(LOG_ERR, "invalid gate time \"%s\"", s); } if ((s = getenv("AUTOSSH_MAXSTART")) != NULL) { max_start = (int)strtol(s, &t, 0); if (*s == '\0' || max_start < 0 || *t != '\0') xerrlog(LOG_ERR, "invalid max start number \"%s\"", s); } if ((s = getenv("AUTOSSH_MESSAGE")) != NULL) { if (*s != '\0') echo_message = s; if (strlen(echo_message) > MAX_MESSAGE) xerrlog(LOG_ERR, "echo message may only be %d bytes long", MAX_MESSAGE); } if ((s = getenv("AUTOSSH_PORT")) != NULL) if (*s != '\0') env_port = s; if ((s = getenv("AUTOSSH_MAXLIFETIME")) != NULL) { max_lifetime = (double)strtoul(s, &t, 0); if (*s == '\0' || *t != '\0' ) xerrlog(LOG_ERR, "invalid max lifetime \"%s\"", s); /* can't really be < 0, as converted as unsigned long */ if (max_lifetime <= 0 ) max_lifetime = MAX_LIFETIME; else { if (poll_time > max_lifetime) { errlog( LOG_INFO, "poll time is greater then lifetime," " dropping poll time to %.0f", max_lifetime ); poll_time = max_lifetime; } if (first_poll_time > max_lifetime) { errlog( LOG_INFO, "first poll time is greater then lifetime," " dropping first poll time to %.0f", max_lifetime ); first_poll_time = max_lifetime; } time(&pid_start_time); } } if ((s = getenv("AUTOSSH_PIDFILE")) != NULL) if (*s != '\0') pid_file_name = s; #if defined(__CYGWIN__) if ((s = getenv("AUTOSSH_NTSERVICE")) != NULL) { if (*s != '\0' && strncasecmp("yes", s, strlen(s)) == 0) { ntservice = 1; logtype = L_FILELOG; flog = stdout; } } #endif /* * Look for this after nt service; in case we may wish to log * elsewhere than stdout when running under cygrunsrv. */ if ((s = getenv("AUTOSSH_LOGFILE")) != NULL) { flog = fopen(s, "a"); if (!flog) xerrlog(LOG_ERR, "%s: %s", s, strerror(errno)); logtype = L_FILELOG; } return; } /* * Run ssh */ void ssh_run(int sock, char **av) { struct sigaction act; struct timeval tv; act.sa_handler = sig_catch; sigemptyset(&act.sa_mask); act.sa_flags = 0; sigaction(SIGTERM, &act, NULL); sigaction(SIGINT, &act, NULL); sigaction(SIGHUP, &act, NULL); sigaction(SIGUSR1, &act, NULL); sigaction(SIGUSR2, &act, NULL); sigaction(SIGCHLD, &act, NULL); act.sa_flags |= SA_RESTART; sigaction(SIGALRM, &act, NULL); /* * There are much better things. and we all wait * for solaris to get /dev/random. */ gettimeofday(&tv, NULL); srandom(getpid() ^ tv.tv_usec ^ tv.tv_sec); while (max_start < 0 || start_count < max_start) { if (exceeded_lifetime()) return; restart_ssh = 0; start_count++; grace_time(start_time); time(&start_time); if (max_start < 0) errlog(LOG_INFO, "starting ssh (count %d)", start_count); else errlog(LOG_INFO, "starting ssh (count %d of %d)", start_count, max_start); cchild = fork(); switch (cchild) { case 0: errlog(LOG_DEBUG, "execing %s", av[0]); execvp(av[0], av); xerrlog(LOG_ERR, "%s: %s", av[0], strerror(errno)); /* else can loop restarting! */ kill(SIGTERM, getppid()); exit(1); break; case -1: cchild = 0; xerrlog(LOG_ERR, "fork: %s", strerror(errno)); break; default: errlog(LOG_INFO, "ssh child pid is %d", (int)cchild); if (ssh_watch(sock) == P_EXIT) return; break; } } errlog(LOG_INFO, "max start count reached; exiting"); } /* * Periodically test network connection. On signals, determine what * happened or what to do with child. Return as necessary for exit * or restart of child. */ int ssh_watch(int sock) { int r; int val; static int secs_left; int my_poll_time = first_poll_time; time_t now; double secs_to_shutdown; #if defined(HAVE_SETPROCTITLE) setproctitle("parent of %d (%d)", (int)cchild, start_count); #endif for (;;) { if (restart_ssh) { errlog(LOG_INFO, "signalled to kill and restart ssh"); ssh_kill(); return P_RESTART; } if ((val = sigsetjmp(jumpbuf, 1)) == 0) { errlog(LOG_DEBUG, "check on child %d", cchild); /* poll for expired child */ r = ssh_wait(WNOHANG); if (r != P_CONTINUE) { errlog(LOG_DEBUG, "expired child, returning %d", r); return r; } secs_left = alarm(0); if (secs_left == 0) secs_left = my_poll_time; my_poll_time = poll_time; if (max_lifetime != 0) { time(&now); secs_to_shutdown = max_lifetime - difftime(now,pid_start_time); if (secs_to_shutdown < poll_time) secs_left = secs_to_shutdown; } errlog(LOG_DEBUG, "set alarm for %d secs", secs_left); alarm(secs_left); dolongjmp = 1; pause(); } else { switch(val) { case SIGINT: case SIGTERM: case SIGQUIT: case SIGABRT: errlog(LOG_INFO, "received signal to exit (%d)", val); ssh_kill(); return P_EXIT; break; case SIGALRM: if (exceeded_lifetime()) { ssh_kill(); return P_EXIT; } if (writep && sock != -1 && !conn_test(sock, mhost, writep)) { errlog(LOG_INFO, "port down, restarting ssh"); ssh_kill(); return P_RESTART; } #ifdef TOUCH_PIDFILE /* * utimes() with a NULL time argument sets * file access and modification times to * the current time */ if (pid_file_name && utimes(pid_file_name, NULL) != 0) { errlog(LOG_ERR, "could not touch pid file: %s", strerror(errno)); } #endif break; default: break; } } } } /* * Checks to see if we have exceeded our time to live * Returns 1 if we have, 0 if we haven't */ int exceeded_lifetime(void) { time_t now; if (max_lifetime > 0 ) { time(&now); if (difftime(now, pid_start_time) >= max_lifetime ) { errlog(LOG_INFO, "exceeded maximum time to live, shutting down"); return 1; } } return 0; } /* * Wait on child: with options == WNOHANG, poll for * dead child, else if options == 0, then wait for * known dead child. * * If child was deliberately killed (TERM, INT, KILL), * or if child called exit(0) or _exit(0), then pass * message on return to give up (P_EXIT). Otherwise death * was unnatural (or unintended), and pass message back * to restart (P_RESTART). * * However, if child died with exit(1) on first try, then * there is some startup error (anything from network * connection to authentication failure), so we exit. * If on a restart, however, we keep trying as it must * have worked once. This doesn't necessarily work if * the user did an interactive authentication, and then * isn't there on the restart to enter his password.... * But we can only know very little about what's going * on inside ssh. * * This is further complicated by the behaviour of * OpenSSH when sent SIGTERM (15). It is possible to * kill it before it installs the handler for that * signal, in which case it autossh behaves as above * and exits. But, in at least interactive use, it * appears that once the session is established ssh * installs a handler, and then when signalled (killed) * it exits with status 255. autossh does not know * it (ssh) was signalled, so restarts it. * */ int ssh_wait(int options) { int status; int evalue; time_t now; if (waitpid(cchild, &status, options) > 0) { if (WIFSIGNALED(status)) { switch(WTERMSIG(status)) { case SIGINT: case SIGTERM: case SIGKILL: /* someone meant it */ errlog(LOG_INFO, "ssh exited on signal %d; parent exiting", WTERMSIG(status)); return P_EXIT; break; default: /* continue on and restart */ errlog(LOG_INFO, "ssh exited on signal %d, restarting ssh", WTERMSIG(status)); return P_RESTART; break; } } else if (WIFEXITED(status)) { evalue = WEXITSTATUS(status); if (start_count == 1 && gate_time != 0) { /* * If ssh exits too quickly, give up. */ time(&now); if (difftime(now, start_time) <= gate_time) { errlog(LOG_ERR, "ssh exited prematurely " "with status %d; %s exiting", evalue, __progname); return P_EXIT; } } switch(evalue) { case 255: /* * we can get this on an initial * connection if the connection itself * is ok, but authentication fails. * But there's no way to do this nicely: * we don't have enough info from the * ssh session and we get the same exit * status from a dropped connection. * Hence the gate_time above. */ errlog(LOG_INFO, "ssh exited with error " "status %d; restarting ssh", evalue); return P_RESTART; break; case 1: /* * the first time, it could be any of * a number of errors; so we exit and let * the user fix. But if been running ok * already, then network may be down and * then ssh fails exit(1) on the attempt * to reconnect....so we try to restart. */ if (start_count > 1 || gate_time == 0) { errlog(LOG_INFO, "ssh exited with error " "status %d; restarting ssh", evalue); return P_RESTART; } /* FALLTHROUGH */ case 0: /* exited on success */ #if defined(__CYGWIN__) if (ntservice) return P_RESTART; /* FALLTHROUGH */ #endif default: /* remote command error status */ errlog(LOG_INFO, "ssh exited with status %d; %s exiting", evalue, __progname); return P_EXIT; break; } } } /* do nothing */ return P_CONTINUE; } /* * Kill ssh child. This can be overly aggressive, and * result in kill KILL before TERM has time to take.... * Perhaps just use TERM? */ void ssh_kill(void) { int w; int status; if (cchild) { /* overkill */ kill(cchild, SIGTERM); /* if (kill(cchild, 0) != -1) + kill(cchild, SIGKILL); */ do { errno = 0; w = waitpid(cchild, &status, 0); } while (w < 0 && errno == EINTR ); if (w <= 0) { errlog(LOG_ERR, "waitpid() not successful: %s", strerror(errno)); } } return; } /* * Try to prevent rapid-fire restarts on such things * as connection refused. Back off and try more slowly. * Calculate a grace period to wait based time between * now and the last restart and the number of tries * in a row that have had less than the poll_time * between them. * * Questions: * - should it back off faster? slower? */ void grace_time(time_t last_start) { int n; double t; int interval; time_t now; static int tries; double min_time; /* * Minimum time we have to stay up to avoid backoff * behaviour. With default poll_time this is 60 secs. * This may be too complicated. */ min_time = (double)(poll_time / 10); if (min_time < 10) min_time = 10; time(&now); if (difftime(now, last_start) >= min_time) tries = 0; else tries++; errlog(LOG_DEBUG, "checking for grace period, tries = %d", tries); if (tries > 5) { t = (double)(tries - 5); n = (int)((poll_time / 100.0) * (t * (t/3))); interval = (n > poll_time) ? poll_time : n; if (interval) { errlog(LOG_DEBUG, "sleeping for grace time %d secs", interval); sleep(interval); } } return; } /* * If we're primed, longjump back. */ void sig_catch(int sig) { if (sig == SIGUSR1) restart_ssh = 1; if (dolongjmp) { dolongjmp = 0; siglongjmp(jumpbuf, sig); } return; } /* * Test the connection monitor loop can pass traffic, and that * we get back what we send. This needs the most testing. */ int conn_test(int sock, char *host, char *write_port) { int rval; /* default return value (failure) */ int tries; /* message attempts */ int send_error; /* did it go/come ok? */ struct pollfd pfd[2]; /* poll fds */ int ntopoll; /* # fds to poll */ int rd, wd; /* read and write descriptors */ long id; /* for a random number */ struct utsname uts; char wbuf[64+sizeof(uts.nodename)+MAX_MESSAGE]; char rbuf[sizeof(wbuf)]; wd = -1; /* default desc. values */ rd = -1; rval = 0; /* default return value : no success */ tries = 0; /* number of attempts */ uts.nodename[0] = '\0'; (void)uname(&uts); id = random(); if (dolongjmp != 0) errlog(LOG_ERR, "conn_test(): error: dolongjmp != 0"); /* set up write connection */ if ((wd = conn_remote(host, write_port)) == -1) return 0; pfd[1].fd = wd; pfd[1].events = POLLOUT; while (tries++ < MAX_CONN_TRIES) { if (tries >= MAX_CONN_TRIES) { errlog(LOG_DEBUG, "tried connection %d times and failed", tries); break; /* give up */ } /* close read socket if we're coming around again */ if (sock != NO_RD_SOCK && rd != -1) { shutdown(rd, SHUT_RDWR); close(rd); rd = -1; } /* * Some data to send: something that is identifiable * as coming from ourselves. Any user can still trash * our listening port. We'd really like to be able to * connect and accept connections from certain pids * (ourself, our children). */ if (snprintf(wbuf, sizeof(wbuf), "%s %s %d %ld %s\r\n", uts.nodename, __progname, (int)getpid(), id, echo_message) >= sizeof(wbuf)) xerrlog(LOG_ERR, "conn_test: buffer overflow"); memset(rbuf, '\0', sizeof(rbuf)); if (sock != NO_RD_SOCK) { /* * If doing loop of connections, then accept() the read * connection and use both read and write fds for * poll(). Replace poll fd with accepted connection fd. */ rd = conn_poll_for_accept(sock, pfd); if (rd < 0) break; /* give up */ pfd[0].fd = rd; pfd[0].events = POLLIN; ntopoll = 2; } else { /* * For talking to echo service, shift over and * just use the one descriptor for both read and * write. */ pfd[0].fd = wd; pfd[0].events = POLLIN|POLLOUT; ntopoll = 1; } send_error = conn_send_and_receive(rbuf, wbuf, strlen(wbuf), pfd, ntopoll); if (send_error == 0) { /* we try again if received does not match sent */ if (strcmp(rbuf, wbuf) == 0) { errlog(LOG_DEBUG, "connection ok"); rval = 1; /* success */ break; /* out of here */ } else { errlog(LOG_DEBUG, "not what I sent: \"%s\" : \"%s\"", wbuf, rbuf); /* loop again */ } } else if (send_error == 1) { errlog(LOG_DEBUG, "timeout on io poll, looping to accept again"); } else { errlog(LOG_DEBUG, "error on poll: %s", strerror(errno)); break; /* hard error, we're out of here */ } } shutdown(wd, SHUT_RDWR); close(wd); if (sock != NO_RD_SOCK) { shutdown(rd, SHUT_RDWR); close(rd); } return rval; } /* * poll for accept(), return file descriptor for accepted connection, * or -1 for error. */ int conn_poll_for_accept(int sock, struct pollfd *pfd) { int rd; /* new descriptor on accept */ int timeo_polla; /* for accept() */ struct sockaddr cliaddr; socklen_t len; /* listen socket info */ rd = 0; timeo_polla = net_timeout; /* timeout value for accept() */ len = sizeof(struct sockaddr); /* * first we're going to poll for accept() */ pfd[0].fd = sock; pfd[0].events = POLLIN; for (;;) { switch(poll(pfd, 1, timeo_polla)) { case 0: errlog(LOG_INFO, "timeout polling to accept read connection"); return -1; case -1: errlog(LOG_ERR, "error polling to accept read connection: %s", strerror(errno)); return -1; default: break; } if (pfd[0].revents & POLLIN) { rd = accept(sock, &cliaddr, &len); if (rd == -1) { errlog(LOG_ERR, "error accepting read connection: %s", strerror(errno)); return -1; } break; } break; } return rd; } /* * Send from wp and receive into rp. * 1 = try again * 0 = ok * -1 = error */ int conn_send_and_receive(char *rp, char *wp, size_t len, struct pollfd *pfd, int ntopoll) { ssize_t nwrite, nread; size_t rleft, wleft; int timeo_pollio; int ird, iwr; int loops = 0; timeo_pollio = net_timeout; /* timeout value for net io */ rleft = wleft = len; /* * If two fds, one is to read, one is to write, * else read and write on the same fd. */ if (ntopoll == 2) { ird = 0; iwr = 1; } else { iwr = ird = 0; } /* * Now, send and receive. When we're doing the loop thing, we stop * polling for write() once we've sent the whole message. */ while (rleft > 0) { switch(poll(pfd, ntopoll, timeo_pollio)) { case 0: return 1; break; case -1: return -1; break; default: break; } if (wleft && pfd[iwr].revents & POLLOUT) { while (wleft > 0) { nwrite = write(pfd[iwr].fd, wp, wleft); if (nwrite == 0) { wleft = 0; /* EOF */ break; } else if (nwrite == -1) { if (errno == EINTR || errno == EAGAIN) break; else return -1; } wleft -= nwrite; wp += nwrite; } /* if complete, turn off polling for write */ if (wleft == 0) { ntopoll = 1; /* * if we are reading and writing to the * same fd then we must clear the write bit * so that poll doesn't loop tight. */ if (iwr == ird) pfd[ird].events = POLLIN; } } if (pfd[ird].revents & POLLIN || pfd[ird].revents & POLLHUP) { while (rleft > 0) { nread = read(pfd[ird].fd, rp, rleft); if (nread == 0) { rleft = 0; /* EOF */ break; } else if (nread == -1) { if (errno == EINTR || errno == EAGAIN) break; else return -1; } rleft -= nread; rp += nread; } } /* * we can run into situations where the data gets black-holed * and poll() can't tell. And then we loop fast and * things go nuts. So if we do that, give up after a while. */ if (loops++ > 5) { sleep(1); if (loops > 10) { errlog(LOG_INFO, "too many loops without data"); return -1; } } } return 0; } #ifndef HAVE_ADDRINFO /* * Convert names to addresses, setup for connection. */ void conn_addr(char *host, char *port, struct sockaddr_in *resp) { struct hostent *h; if ((h = gethostbyname(host)) == NULL) xerrlog(LOG_ERR, "%s: %s", host, hstrerror(h_errno)); resp->sin_family = h->h_addrtype; resp->sin_port = htons(atoi(port)); resp->sin_addr = *((struct in_addr *) h->h_addr_list[0]); return; } /* * Open connection we're writing to. */ int conn_remote(char *host, char *port) { int sock; static struct sockaddr_in res = {AF_UNSPEC}; /* Cache the address info */ if (res.sin_family == AF_UNSPEC) conn_addr(host, port, &res); if ((sock = socket(res.sin_family, SOCK_STREAM, 0)) == -1) xerrlog(LOG_ERR, "socket: %s", strerror(errno)); if (connect(sock, (struct sockaddr *) &res, sizeof(res)) == -1) { errlog(LOG_INFO, "%s:%s: %s", host, port, strerror(errno)); close(sock); return -1; } return sock; } /* * Returns a socket listening on a local port, bound to specified source * address. Errors in binding to the local listening port are fatal. */ int conn_listen(char *host, char *port) { int sock; struct sockaddr_in res; int on = 1; /* * Unlike conn_remote, we don't need to cache the * info; we're only calling once at start. All errors * here are fatal. */ conn_addr(host, port, &res); if ((sock = socket(res.sin_family, SOCK_STREAM, 0)) == -1) xerrlog(LOG_ERR, "socket: %s", strerror(errno)); if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *) &on, sizeof on) != 0) { xerrlog(LOG_ERR, "setsockopt: %s", strerror(errno)); } if (bind(sock, (struct sockaddr *)&res, sizeof(res)) == -1) xerrlog(LOG_ERR, "bind on %s:%s: %s", host, port, strerror(errno)); if (listen(sock, 1) < 0) xerrlog(LOG_ERR, "listen: %s", strerror(errno)); return sock; } #else /* HAVE_ADDRINFO */ /* * Convert names to addresses, setup for connection. */ void conn_addr(char *host, char *port, struct addrinfo **resp) { int family = AF_INET; struct addrinfo hints; int error; memset(&hints, 0, sizeof(struct addrinfo)); hints.ai_family = family; hints.ai_socktype = SOCK_STREAM; hints.ai_protocol = IPPROTO_TCP; /* Allow nodename to be null */ hints.ai_flags |= AI_PASSIVE; /* * In the case of binding to a wildcard address * default to binding to an ipv4 address. */ if (host == NULL && hints.ai_family == AF_UNSPEC) hints.ai_family = AF_INET; if ((error = getaddrinfo(host, port, &hints, resp))) xerrlog(LOG_ERR, "%s", gai_strerror(error)); return; } /* * Open connection we're writing to. */ int conn_remote(char *host, char *port) { int sock; static struct addrinfo *res; /* Cache the address info */ if (!res) conn_addr(host, port, &res); if ((sock = socket(res->ai_family, res->ai_socktype, res->ai_protocol)) == -1) xerrlog(LOG_ERR, "socket: %s", strerror(errno)); if (connect(sock, res->ai_addr, res->ai_addrlen) == -1) { errlog(LOG_INFO, "%s:%s: %s", host, port, strerror(errno)); close(sock); return -1; } return sock; } /* * Returns a socket listening on a local port, bound to specified source * address. Errors in binding to the local listening port are fatal. */ int conn_listen(char *host, char *port) { int sock; struct addrinfo *res; int on = 1; /* * Unlike conn_remote, we don't need to cache the * info; we're only calling once at start. All errors * here are fatal. */ conn_addr(host, port, &res); if ((sock = socket(res->ai_family, res->ai_socktype, res->ai_protocol)) == -1) xerrlog(LOG_ERR, "socket: %s", strerror(errno)); if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *) &on, sizeof on) != 0) { xerrlog(LOG_ERR, "setsockopt: %s", strerror(errno)); } if (bind(sock, (struct sockaddr *)res->ai_addr, res->ai_addrlen) == -1) xerrlog(LOG_ERR, "bind on %s:%s: %s", host, port, strerror(errno)); if (listen(sock, 1) < 0) xerrlog(LOG_ERR, "listen: %s", strerror(errno)); freeaddrinfo(res); return sock; } #endif /* ! HAVE_ADDRINFO */ /* * On OpenBSD _exit() calls atexit() registered functions. * Solaris has a function, _exithandle(), you can call * before _exit(). */ void unlink_pid_file(void) { if (pid_file_created) (void)unlink(pid_file_name); pid_file_created = 0; } /* * Nicely formatted time string for logging */ char * timestr(void) { static char timestr[32]; time_t now; struct tm *tm; (void)time(&now); tm = localtime(&now); (void)strftime(timestr, sizeof(timestr), "%Y/%m/%d %H:%M:%S", tm); return timestr; } /* * Log errors. */ void errlog(int level, char *fmt, ...) { va_list ap; va_start(ap, fmt); doerrlog(level, fmt, ap); va_end(ap); } /* * Log and then exit with error status. */ void xerrlog(int level, char *fmt, ...) { va_list ap; va_start(ap, fmt); doerrlog(level, fmt, ap); va_end(ap); ssh_kill(); unlink_pid_file(); _exit(1); } /* * Log to file and/or syslog as directed. We want different * behaviour before syslog has been called and set up; and * different behaviour before we fork for ssh: errors before * that point result in exit. */ void doerrlog(int level, char *fmt, va_list ap) { FILE *fl; #ifndef HAVE_VSYSLOG char logbuf[1024]; #endif fl = flog; /* only set per-call */ if (loglevel >= level) { if (logtype & L_SYSLOG) { #ifndef HAVE_VSYSLOG (void)vsnprintf(logbuf, sizeof(logbuf), fmt, ap); syslog(level, logbuf); #else vsyslog(level, fmt, ap); #endif } else if (!fl) { /* * if we're not using syslog, and we * don't have a log file, then use * stderr. */ fl = stderr; } if ((logtype & L_FILELOG) && fl) { fprintf(fl, "%s %s[%d]: ", timestr(), __progname, (int)getpid()); vfprintf(fl, fmt, ap); fprintf(fl, "\n"); fflush(fl); } } return; } /* END */ autossh-1.4e/autossh.host010074400017500000024000000012461246630602600151420ustar00hardingstaff#!/bin/sh # # Example script to start up tunnel with autossh. # # This script will tunnel 2200 from the remote host # to 22 on the local host. On remote host do: # ssh -p 2200 localhost # # $Id: autossh.host,v 1.6 2004/01/24 05:53:09 harding Exp $ # ID=username HOST=hostname.your.net if [ "X$SSH_AUTH_SOCK" = "X" ]; then eval `ssh-agent -s` ssh-add $HOME/.ssh/id_rsa fi #AUTOSSH_POLL=600 #AUTOSSH_PORT=20000 #AUTOSSH_GATETIME=30 #AUTOSSH_LOGFILE=$HOST.log #AUTOSSH_DEBUG=yes #AUTOSSH_PATH=/usr/local/bin/ssh export AUTOSSH_POLL AUTOSSH_LOGFILE AUTOSSH_DEBUG AUTOSSH_PATH AUTOSSH_GATETIME AUTOSSH_PORT autossh -2 -fN -M 20000 -R 2200:localhost:22 ${ID}@${HOST} autossh-1.4e/autossh.1010064400017500000024000000230421246630602600143220ustar00hardingstaff.\" -*- nroff -*- .\" .\" Author: Carson Harding .\" Copyright (c) 2002 Carson Harding. All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted. .\" .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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. .\" .\" $Id: autossh.1,v 1.23 2015/02/10 04:31:16 harding Exp $ .\" .Dd Jul 20, 2004 .Dt AUTOSSH 1 .Os .Sh NAME .Nm autossh .Nd monitor and restart ssh sessions .Sh SYNOPSIS .Nm autossh .Op Fl V .Op Fl M Ar port[:echo_port] .Op Fl f .Ar [SSH_OPTIONS] .Sh DESCRIPTION .Nm is a program to start a copy of ssh and monitor it, restarting it as necessary should it die or stop passing traffic. .Pp The original idea and the mechanism were from rstunnel (Reliable SSH Tunnel). With version 1.2 of .Nm the method changed: .Nm uses ssh to construct a loop of ssh forwardings (one from local to remote, one from remote to local), and then sends test data that it expects to get back. (The idea is thanks to Terrence Martin.) .Pp With version 1.3, a new method is added (thanks to Ron Yorston): a port may be specified for a remote echo service that will echo back the test data. This avoids the congestion and the aggravation of making sure all the port numbers on the remote machine do not collide. The loop-of-forwardings method remains available for situations where using an echo service may not be possible. .Pp .Sh CONTROLLING SSH .Pp .Ss SSH exits .Pp .Bl -tag -width Ds .Nm tries to distinguish the manner of death of the ssh process it is monitoring and act appropriately. The rules are: .Bl -tag -width Ds .It 1. If the ssh process exited normally (for example, someone typed "exit" in an interactive session), .Nm exits rather than restarting; .It 2. If .Nm itself receives a SIGTERM, SIGINT, or a SIGKILL signal, it assumes that it was deliberately signalled, and exits after killing the child ssh process; .It 3. If .Nm itself receives a SIGUSR1 signal, it kills the child ssh process and starts a new one; .It 4. Periodically (by default every 10 minutes), .Nm attempts to pass traffic on the monitor forwarded port. If this fails, .Nm will kill the child ssh process (if it is still running) and start a new one; .It 5. If the child ssh process dies for any other reason, .Nm will attempt to start a new one. .El .Pp .Ss Startup behaviour .Pp If the ssh session fails with an exit status of 1 on the very first try, .Nm .Bl -tag -width Ds .It 1. will assume that there is some problem with syntax or the connection setup, and will exit rather than retrying; .It 2. There is a "starting gate" time. If the first ssh process fails within the first few seconds of being started, .Nm assumes that it never made it "out of the starting gate", and exits. This is to handle initial failed authentication, connection, etc. This time is 30 seconds by default, and can be adjusted (see the AUTOSSH_GATETIME environment variable below). If AUTOSSH_GATETIME is set to 0, then both behaviours are disabled: there is no "starting gate", and autossh will restart even if ssh fails on the first run with an exit status of 1. The "starting gate" time is also set to 0 when the .Fl f flag to autossh is used. .El .Pp .Ss Continued failures .Pp If the ssh connection fails and attempts to restart it fail in quick succession, .Nm will start delaying its attempts to restart, gradually backing farther and farther off up to a maximum interval of the .Nm poll time (usually 10 minutes). .Nm can be "prodded" to retry by signalling it, perhaps with SIGHUP ("kill -HUP"). .Pp .Ss Connection setup .Pp As connections must be established unattended, the use of .Nm requires that some form of automatic authentication be set up. The use of RSAAuthentication with ssh-agent is the recommended method. The example wrapper script attempts to check if there is an agent running for the current environment, and to start one if there isn't. .Pp It cannot be stressed enough that you must make sure ssh works on its own, that you can set up the session you want before you try to run it under .Nm . .Pp If you are tunnelling and using an older version of ssh that does not support the .Fl N flag, you should upgrade (your version has security flaws). If you can't upgrade, you may wish to do as rstunnel does, and give ssh a command to run, such as "sleep 99999999999". .Sh OPTIONS .Bl -tag -width Ds .It Fl M Ar port[:echo_port] specifies the base monitoring port to use. Without the echo port, this port and the port immediately above it ( .Ar port + 1) should be something nothing else is using. .Nm will send test data on the base monitoring port, and receive it back on the port above. For example, if you specify "-M 20000", .Nm will set up forwards so that it can send data on port 20000 and receive it back on 20001. .Pp Alternatively, a port for a remote echo service may be specified. This should be port 7 if you wish to use the standard inetd echo service. When an echo port is specified, only the specified monitor port is used, and it carries the monitor message in both directions. .Pp Many people disable the echo service, or even disable inetd, so check that this service is available on the remote machine. Some operating systems allow one to specify that the service only listen on the localhost (loopback interface), which would suffice for this use. .Pp The echo service may also be something more complicated: perhaps a daemon that monitors a group of ssh tunnels. .Pp Setting the monitor port to 0 turns the monitoring function off, and autossh will only restart ssh upon ssh's exit. For example, if you are using a recent version of OpenSSH, you may wish to explore using the .Cm ServerAliveInterval and .Cm ServerAliveCountMax options to have the SSH client exit if it finds itself no longer connected to the server. In many ways this may be a better solution than the monitoring port. .It Fl f causes autossh to drop to the background before running ssh. The .Fl f flag is stripped from arguments passed to ssh. Note that there is a crucial a difference between .Fl f with autossh, and .Fl f with ssh: when used with .Nm ssh will be unable to ask for passwords or passphrases. When .Fl f is used, the "starting gate" time (see AUTOSSH_GATETIME) is set to 0. .It Fl V causes .Nm to display its version number and exit. .El .Sh ENVIRONMENT Other than the flag to set the connection monitoring port, .Nm uses environment variables to control features. ssh seems to be still collecting letters for options, and this seems the easiest way to avoid collisions. .Bl -tag -width Ds .It Ev AUTOSSH_DEBUG If this variable is set, the logging level is set to to LOG_DEBUG, and if the operating system supports it, syslog is set to duplicate log entries to stderr. .It Ev AUTOSSH_FIRST_POLL Specifies the time to wait before the first connection test. Thereafter the general poll time is used (see AUTOSSH_POLL below). .It Ev AUTOSSH_GATETIME Specifies how long ssh must be up before we consider it a successful connection. The default is 30 seconds. Note that if AUTOSSH_GATETIME is set to 0, then not only is the gatetime behaviour turned off, but autossh also ignores the first run failure of ssh. This may be useful when running autossh at boot. .It Ev AUTOSSH_LOGLEVEL Specifies the log level, corresponding to the levels used by syslog; so 0-7 with 7 being the chattiest. .It Ev AUTOSSH_LOGFILE Specifies that .Nm should use the named log file, rather than syslog. .It Ev AUTOSSH_MAXLIFETIME Sets the maximum number of seconds that the program should run. Once the number of seconds has been passed, the ssh child will be killed and the program will exit. .It Ev AUTOSSH_MAXSTART Specifies how many times ssh should be started. A negative number means no limit on the number of times ssh is started. The default value is -1. .It Ev AUTOSSH_MESSAGE Append message to echo message sent when testing connections. .It Ev AUTOSSH_NTSERVICE (Cygwin only.) When set to "yes" , autossh sets up to run as an NT service under cygrunsrv. This adds the -N flag for ssh if not already set, sets the log output to stdout, and changes the behaviour on ssh exit so that it will restart even on a normal exit. .It Ev AUTOSSH_PATH Specifies the path to the ssh executable, in case it is different than the path compiled in. .It Ev AUTOSSH_PIDFILE Write autossh pid to specified file. .It Ev AUTOSSH_POLL Specifies the connection poll time in seconds; default is 600 seconds. Unless AUTOSSH_FIRST_POLL is used, the first poll time will set to match the poll time. If the poll time is less than twice the network timeouts (default 15 seconds) the network timeouts will be adjusted downward to 1/2 the poll time. .It Ev AUTOSSH_PORT Sets the connection monitoring port. Mostly in case ssh appropriates -M at some time. But because of this possible use, AUTOSSH_PORT overrides the -M flag. A value of 0 turns the monitoring function off. .El .Sh AUTHOR .Nm was written by Carson Harding. .Sh SEE ALSO .Xr ssh 1 , .Xr ssh-add 1 , .Xr ssh-agent 1 , .Xr ssh-keygen 1 , .Xr cygrunsrv 1 . autossh-1.4e/fakepoll.h010064400017500000024000000112141246630602600145160ustar00hardingstaff/* fakepoll.h * poll using select * * Warning: a call to this poll() takes about 4K of stack space. * Greg Parker gparker-web@sealiesoftware.com December 2000 * This code is in the public domain and may be copied or modified without * permission. * * Updated May 2002: * * fix crash when an fd is less than 0 * * set errno=EINVAL if an fd is greater or equal to FD_SETSIZE * * don't set POLLIN or POLLOUT in revents if it wasn't requested * in events (only happens when an fd is in the poll set twice) * * Updated Dec 2002: * * change comment style (for autossh, Carson Harding) * * undef FD_SETSIZE first */ #ifndef _FAKE_POLL_H #define _FAKE_POLL_H #include #undef FD_SETSIZE #define FD_SETSIZE OPEN_MAX #include #include #include #include typedef struct pollfd { int fd; /* file desc to poll */ short events; /* events of interest on fd */ short revents; /* events that occurred on fd */ } pollfd_t; /* poll flags */ #define POLLIN 0x0001 #define POLLOUT 0x0004 #define POLLERR 0x0008 /* synonyms */ #define POLLNORM POLLIN #define POLLPRI POLLIN #define POLLRDNORM POLLIN #define POLLRDBAND POLLIN #define POLLWRNORM POLLOUT #define POLLWRBAND POLLOUT /* ignored */ #define POLLHUP 0x0010 #define POLLNVAL 0x0020 inline int poll(struct pollfd *pollSet, int pollCount, int pollTimeout) { struct timeval tv; struct timeval *tvp; fd_set readFDs, writeFDs, exceptFDs; fd_set *readp, *writep, *exceptp; struct pollfd *pollEnd, *p; int selected; int result; int maxFD; if (!pollSet) { pollEnd = NULL; readp = NULL; writep = NULL; exceptp = NULL; maxFD = 0; } else { pollEnd = pollSet + pollCount; readp = &readFDs; writep = &writeFDs; exceptp = &exceptFDs; FD_ZERO(readp); FD_ZERO(writep); FD_ZERO(exceptp); /* Find the biggest fd in the poll set */ maxFD = 0; for (p = pollSet; p < pollEnd; p++) { if (p->fd > maxFD) maxFD = p->fd; } if (maxFD >= FD_SETSIZE) { /* At least one fd is too big */ errno = EINVAL; return -1; } /* Transcribe flags from the poll set to the fd sets */ for (p = pollSet; p < pollEnd; p++) { if (p->fd < 0) { /* Negative fd checks nothing and always reports zero */ } else { if (p->events & POLLIN) FD_SET(p->fd, readp); if (p->events & POLLOUT) FD_SET(p->fd, writep); if (p->events != 0) FD_SET(p->fd, exceptp); /* POLLERR is never set coming in; poll() always reports errors * But don't report if we're not listening to anything at all. */ } } } /* poll timeout is in milliseconds. Convert to struct timeval. * poll timeout == -1 : wait forever : select timeout of NULL * poll timeout == 0 : return immediately : select timeout of zero */ if (pollTimeout >= 0) { tv.tv_sec = pollTimeout / 1000; tv.tv_usec = (pollTimeout % 1000) * 1000; tvp = &tv; } else { tvp = NULL; } selected = select(maxFD+1, readp, writep, exceptp, tvp); if (selected < 0) { /* Error during select */ result = -1; } else if (selected > 0) { /* Select found something * Transcribe result from fd sets to poll set. * Also count the number of selected fds. poll returns the * number of ready fds; select returns the number of bits set. */ int polled = 0; for (p = pollSet; p < pollEnd; p++) { p->revents = 0; if (p->fd < 0) { /* Negative fd always reports zero */ } else { if ((p->events & POLLIN) && FD_ISSET(p->fd, readp)) { p->revents |= POLLIN; } if ((p->events & POLLOUT) && FD_ISSET(p->fd, writep)) { p->revents |= POLLOUT; } if ((p->events != 0) && FD_ISSET(p->fd, exceptp)) { p->revents |= POLLERR; } if (p->revents) polled++; } } result = polled; } else { /* selected == 0, select timed out before anything happened * Clear all result bits and return zero. */ for (p = pollSet; p < pollEnd; p++) { p->revents = 0; } result = 0; } return result; } #endif autossh-1.4e/daemon.h010064400017500000024000000054401246630602600141700ustar00hardingstaff/* * this is BSD's daemon() for things that don't have it; cut from OpenBSD * $Id: daemon.h,v 1.5 2006/05/21 03:33:01 harding 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. 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. */ #if !defined(HAVE_DAEMON) #if defined(LIBC_SCCS) && !defined(lint) static char rcsid[] = "$OpenBSD: daemon.c,v 1.2 1996/08/19 08:22:13 tholo Exp $"; #endif /* LIBC_SCCS and not lint */ int daemon(int nochdir, int noclose); 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(_PATH_DEVNULL, 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; } #endif autossh-1.4e/rscreen010074400017500000024000000011531246630602600141360ustar00hardingstaff#!/bin/sh # # sample script to use autossh to open up a remote screen # session, or reconnect to an existing one. # # $Id: rscreen,v 1.4 2002/05/07 17:54:13 harding Exp $ # if [ "X$1" = "X" ]; then echo "usage: `basename $0` " exit 1 fi if [ "X$SSH_AUTH_SOCK" = "X" ]; then eval `ssh-agent -s` ssh-add $HOME/.ssh/id_rsa fi #AUTOSSH_POLL=600 #AUTOSSH_PORT=20000 #AUTOSSH_GATETIME=30 #AUTOSSH_LOGFILE=$HOST.log #AUTOSSH_DEBUG=yes #AUTOSSH_PATH=/usr/local/bin/ssh export AUTOSSH_POLL AUTOSSH_LOGFILE AUTOSSH_DEBUG AUTOSSH_PATH AUTOSSH_GATETIME AUTOSSH_PORT autossh -M 20004 -t $1 "screen -e^Zz -D -R" autossh-1.4e/README010064400017500000024000000221661246630602600134400ustar00hardingstaff autossh Version 1.4 ------------------- Building and Installing Autossh -------------------------------- With version 1.4, autossh now uses autoconf. So the build procedure is now the well-known: ./configure make make install Look at autossh.host for an example wrapper script. Usage ----- autossh -M [:echo_port] [-f] [SSH OPTIONS] Description ----------- autossh is a program to start a copy of ssh and monitor it, restarting it as necessary should it die or stop passing traffic. The original idea and the mechanism were from rstunnel (Reliable SSH Tunnel). With version 1.2 the method changed: autossh now uses ssh to construct a loop of ssh forwardings (one from local to remote, one from remote to local), and then sends test data that it expects to get back. (The idea is thanks to Terrence Martin.) With version 1.3, a new method is added (thanks to Ron Yorston): a port may be specified for a remote echo service that will echo back the test data. This avoids the congestion and the aggravation of making sure all the port numbers on the remote machine do not collide. The loop-of -forwardings method remains available for situations where using an echo service may not be possible. autossh has only three arguments of its own: -M [:echo_port], to specify the base monitoring port to use, or alternatively, to specify the monitoring port and echo service port to use. When no echo service port is specified, this port and the port immediately above it (port# + 1) should be something nothing else is using. autossh will send test data on the base monitoring port, and receive it back on the port above. For example, if you specify "-M 20000", autossh will set up forwards so that it can send data on port 20000 and receive it back on 20001. Alternatively a port for a remote echo service may be specified. This should be port 7 if you wish to use the standard inetd echo service. When an echo port is specified, only the specified monitor port is used, and it carries the monitor message in both directions. Many people disable the echo service, or even disable inetd, so check that this service is available on the remote machine. Some operating systems allow one to specify that the service only listen on the localhost (loopback interface), which would suffice for this use. The echo service may also be something more complicated: perhaps a daemon that monitors a group of ssh tunnels. -M 0 will turn the monitoring off, and autossh will only restart ssh on ssh exit. For example, if you are using a recent version of OpenSSH, you may wish to explore using the ServerAliveInterval and ServerAliveCountMax options to have the SSH client exit if it finds itself no longer connected to the server. In many ways this may be a better solution than the monitoring port. -f Causes autossh to drop to the background before running ssh. The -f flag is stripped from arguments passed to ssh. Note that there is a crucial a difference between the -f with autossh, and -f with ssh: when used with autossh, ssh will be *unable* to ask for passwords or passphrases. When -f is used, the "starting gate" time (see AUTOSSH_GATETIME) will be set to 0. -V to have autossh display its version and exit. All other arguments are passed to ssh. There are a number of other settings, but these are all controlled through environment variables. ssh seems to be appropriating more and more letters for options, and this seems the easiest way to avoid collisions. autossh tries to distinguish the manner of death of the ssh process it is monitoring and act appropriately. The rules are: - If the ssh process exited normally (for example, someone typed "exit" in an interactive session), autossh exits rather than restarting; - If autossh itself receives a SIGTERM, SIGINT, or a SIGKILL signal, it assumes that it was deliberately signalled, and exits after killing the child ssh process; - If autossh itself receives a SIGUSR1 signal, it will kill the child ssh process and start a new one; - Periodically (by default every 10 minutes), autossh attempts to pass traffic on the monitor forwarded port. If this fails, autossh will kill the child ssh process (if it is still running) and start a new one; - If the child ssh process dies for any other reason, autossh will attempt to start a new one. Startup behaviour: - If the ssh session fails with an exit status of 1 on the very first try, autossh will assume that there is some problem with syntax or the connection setup, and will exit rather than retrying; - There is now a "starting gate" time. If the first ssh process fails within the first few seconds of being started, autossh assumes that it never made it "out of the starting gate", and exits. This is to handle initial failed authentication, connection, etc. This time is 30 seconds by default, and can be adjusted (see the AUTOSSH_GATETIME environment variable below). - NOTE: If AUTOSSH_GATETIME is set to 0, then BOTH of the above behaviours are disabled. This is useful for, for example, having autossh start on boot. The "starting gate" time is also set to 0 with the -f flag to autossh is used. Continued failures: - If the ssh connection fails and attempts to restart it fail in quick succession, autossh will start delaying its attempts to restart, gradually backing farther and farther off up to a maximum interval of the autossh poll time (usually 10 minutes). autossh can be "prodded" to retry by signalling it, perhaps with SIGHUP ("kill -HUP"). Connection Setup ---------------- As connections must be established unattended, the use of autossh requires that some form of automatic authentication be set up. The use of RSAAuthentication with ssh-agent is the recommended method. The example wrapper script attempts to check if there is an agent running for the current environment, and to start one if there isn't. It cannot be stressed enough that you must make sure ssh works on its own, that you can set up the session you want before you try to run it under autossh. If you are tunnelling and using an older version of ssh that does not support the -N flag, you should upgrade (your version has security flaws). If you can't upgrade, you may wish to do as rstunnel does, and give ssh a command to run, such as "sleep 99999999999". Disabling connection monitoring ------------------------------- A monitor port value of "0" ("autossh -M 0") will disable use of the monitor ports; autossh will then only react to signals and the death of the ssh process. Environment Variables --------------------- The following environment variables can be set: AUTOSSH_DEBUG - sets logging level to LOG_DEBUG, and if the operating system supports it, sets syslog to duplicate log entries to stderr. AUTOSSH_FIRST_POLL - time to initial poll (default is as AUTOSSH_POLL below). AUTOSSH_GATETIME - how long ssh must be up before we consider it a successful connection. Default is 30 seconds. If set to 0, then this behaviour is disabled, and as well, autossh will retry even on failure of first attempt to run ssh. AUTOSSH_LOGFILE - sets autossh to use the named log file, rather than syslog. AUTOSSH_LOGLEVEL - log level, they correspond to the levels used by syslog; so 0-7 with 7 being the chattiest. AUTOSSH_MAXLIFETIME - Sets the maximum number of seconds the process should live for before killing off the ssh child and exiting. AUTOSSH_MAXSTART - specifies how many times ssh should be started. A negative number means no limit on the number of times ssh is started. The default value is -1. AUTOSSH_MESSAGE - append a custom message to the echo string (max 64 bytes). AUTOSSH_NTSERVICE - when set to "yes" , setup autossh to run as an NT service under cygrunsrv. This adds the -N flag for ssh if not already set, sets the log output to stdout, and changes the behaviour on ssh exit so that it will restart even on a normal exit. AUTOSSH_PATH - path to the ssh executable, in case it is different than that compiled in. AUTOSSH_PIDFILE - write autossh pid to specified file. AUTOSSH_POLL - poll time in seconds; default is 600. Changing this will also change the first poll time, unless AUTOSSH_FIRST_POLL is used to set it to something different. If the poll time is less than twice the network timeouts (default 15 seconds) the network timeouts will be adjusted downward to 1/2 the poll time. AUTOSSH_PORT - set monitor port. Mostly in case ssh appropriates -M at some time. But because of this possible use, AUTOSSH_PORT overrides the -M flag. Logging and Syslog ------------------ autossh logs to syslog using the LOG_USER facility. Your syslog may have to be configured to accept messages for this facility. This is usually done in /etc/syslog.conf. -- Kudos and raspberries to harding [at] motd.ca autossh-1.4e/CHANGES010064400017500000024000000146771246630602600135630ustar00hardingstaff Version 1.4e - By default, changing the poll time should change the first poll time to match. Only have different times if AUTOSSH_FIRST_POLL is explicitly set. Jerry Xie forwarded on change request from Ubuntu bug forums. Version 1.4d - call daemon() before opening any sockets. Problem discovered and diagnosed by Frank van der Aa when trying to start autossh at system init. - don't use malloc(n * size) idiom; use calloc() Version 1.4c - updated option string up to OpenSSH 5.6 - when using -f, set gate_time to 0; the assumption is that it is being used for infrastructure (i.e. in a system startup), has been tested, and bombing out just because the remote end is not up is not the desired behaviour. - add patch from Thorsten Glaser for configure, fixes misplaced parenthesis and check for __progname. Version 1.4b - add AUTOSSH_MAXLIFETIME (patch from Steven Clark) - include configure.ac in package - fix poll flags so not checking for writable when write done (patch from John Grahor) - compile time TOUCH_PIDFILE option to touch pid file on connection test. Version 1.4a - fix up pid file generation (Xander Hudson) - fix up Makefile.in (Andrew Schulman) Version 1.4 - initialise ep in main() to avoid warning (Marcelo Goes) - fix where cast to int happens when calculating next time to poll connection (Omer Erdem Demir) - fix '--' use so can pass -M to autossh for session multiplexing - fix use of strcpy for overlapping copy in strip_arg (Filippo Giunchedi). - add basic GNU autoconf support and drop per-platform Makefiles (Andre Lucas) - pid file support (Ben Vitale) - arbitrary messages in echo string (Ron Yorston) Version 1.3 - fix AUTOSSH_DEBUG for Solaris and AIX - fix attempt to free() static storage (affected platforms without getaddrinfo() -- mostly cygwin) (Andrew Schulman) - change test and placement of typedef for socklen_t under OS X; new OS X defines it - add ability to signal autossh to kill and restart ssh child, using SIGUSR1 - add hostname to monitor message (Ron Yorston) - check on looping on poll() where connection has been lost (spinning and high CPU) - fix bug where length argument to accept() was not initialised - fix arg parsing bug where stripping -f from arguments would strip from a parameter to the argument: e.g -L8808:foo:80 would become -L8808:oo:80 (pointed out by Eric Larson) - pull out r/w loops in conn_test() into separate functions, makes logic more apparent - add echo port support: have the remote server use the inetd echo service to echo our test string back to us. Or use some other echo service. Idea and patch from Ron Yorston. This makes it 1.3. - remove bad strcpy() (left over from some testing?) thanks to Ron Yorston, change to memset read buffer to all zeros - fix ssh args when AUTOSSH_PORT=0 is used to turn monitor loop off (Karl Berry) - add more descriptive usage output, by popular request Version 1.2g - add AUTOSSH_NTSERVICE (Andrew Schulman) - fix bad calculation for seconds left in poll time (again from Andrew Schulman) - from Andrew Schulman: add support for older networking and cygwin - add AUTOSSH_MAXSTART (from Hugo Haas) - loop around waitpid() in ssh_kill() in case interrupted (thanks to Jens Krabbenhoeft) - update ssh argument string - move openlog above port error checking - handle environment variables and -M arg being set to the empty string (reported by Dan Christensen via Filippo Giunche) - add some rudimetary auto-adjust to the network timeouts for low poll times. So by default 15secs on each of accept() and poll()to deal with high-latency connections, but as poll time falls below 30secs, then adjust timeouts down as well. - adjust division in grace_time() to allow for low poll time - don't call shutdown() and close() on invalid socket () (found by Dmitry V. Levin) Version 1.2f - by popular request, support the -f flag by doing the fork/background ourselves, and not passing the flag to ssh (thanks to Dan Christensen for prodding me into it) - change timeout to from 5000 to 15000 ms to deal with reported issues with high-latency links; unused var removal; and man page typo (thanks to Michael Shields) Version 1.2e - check for attempt to use -f flag; exit as error - if AUTOSSH_GATETIME is 0, then disable any of the startup failure bailouts, and just retry - set SO_REUSEADDR on listening socket (Jedi One's suggestion) - show port number in some error messages - note in man page and README about -M 0 turning port monitoring off - remove duplicate include of sys/socket.h Version 1.2d - AIX support (thanks to Stefan Rodenstein) - fix argument rewrite bug when using AUTOSSH_PORT (thanks to Peter Williams) - log pid of ssh child just after fork Version 1.2c - use Marcus Friedl's suggestion to simply connect to "127.0.0.1" rather than "localhost", as not really using IPv6 anyway. And this gets rid of annoying ipv6 localhost message on Solaris at least. - support for MacOS X using Greg Parker's fakepoll. Version 1.2b (Thanks to Simon Easter for bug reports and trials) - fix file descriptor leak - setsockopt()'s don't work for Solaris either. Give up on them. - set close-on-exec for read socket so will be closed when ssh executed - do shutdown() before close() (paranoia) - close read socket before exit - pull read socket open and close up out of ssh_run() - cosmetic changes to some loops, get rid of newlines in some errlog strings. Version 1.2a - setsockopt() will not set timeouts on socket read/write ops under Linux 2.2 kernels (and earlier, I presume). So unless someone tells me we really need them, I've #ifdef'd the setsockopt()s out for Linux. - check value of fd returned by accept(). - Oh, there's a man page now. Unfortunately, it doesn't render for Solaris. Sorry, Solaris users are still stuck with the README. Version 1.2 - Major restructuring of code, mostly to support the change to a loop of forwarded ports to test the network connection. - Incremental back off on rate of connection attempts when there are rapid failures to establish/maintain a connection. Version 1.1b - change handling of ssh exit status - introduce "starting gate" time: ssh process that dies too early is deemed not to have made it out of the starting gate, and autossh exits. Version 1.1a - fix race after failure to exec ssh where parent will loop attempting to restart - add -V version flag - use strtoul() for environment option parsing - drop useless intermediate function ssh_setwatch() Version 1.1 Initial release autossh-1.4e/INSTALL010064400017500000024000000220301246630602600135770ustar00hardingstaffCopyright (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 `..'. If you have to use a `make' that does not support the `VPATH' variable, you have to compile the package for one architecture at a time in the source code directory. After you have installed the package for one architecture, use `make distclean' before reconfiguring for another architecture. Installation Names ================== By default, `make install' will install the package's files in `/usr/local/bin', `/usr/local/man', etc. You can specify an installation prefix other than `/usr/local' by giving `configure' the option `--prefix=PATH'. You can specify separate installation prefixes for architecture-specific files and architecture-independent files. If you give `configure' the option `--exec-prefix=PATH', the package will use PATH as the prefix for installing programs and libraries. Documentation and other data files will still use the regular prefix. In addition, if you use an unusual directory layout you can give options like `--bindir=PATH' to specify different values for particular kinds of files. Run `configure --help' for a list of the directories you can set and what kinds of files go in them. If the package supports it, you can cause programs to be installed with an extra prefix or suffix on their names by giving `configure' the option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. Optional Features ================= Some packages pay attention to `--enable-FEATURE' options to `configure', where FEATURE indicates an optional part of the package. They may also pay attention to `--with-PACKAGE' options, where PACKAGE is something like `gnu-as' or `x' (for the X Window System). The `README' should mention any `--enable-' and `--with-' options that the package recognizes. For packages that use the X Window System, `configure' can usually find the X include and library files automatically, but if it doesn't, you can use the `configure' options `--x-includes=DIR' and `--x-libraries=DIR' to specify their locations. Specifying the System Type ========================== There may be some features `configure' cannot figure out automatically, but needs to determine by the type of machine the package will run on. Usually, assuming the package is built to be run on the _same_ architectures, `configure' can figure that out, but if it prints a message saying it cannot guess the machine type, give it the `--build=TYPE' option. TYPE can either be a short name for the system type, such as `sun4', or a canonical name which has the form: CPU-COMPANY-SYSTEM where SYSTEM can have one of these forms: OS KERNEL-OS See the file `config.sub' for the possible values of each field. If `config.sub' isn't included in this package, then this package doesn't need to know the machine type. If you are _building_ compiler tools for cross-compiling, you should use the `--target=TYPE' option to select the type of system they will produce code for. If you want to _use_ a cross compiler, that generates code for a platform different from the build platform, you should specify the "host" platform (i.e., that on which the generated programs will eventually be run) with `--host=TYPE'. Sharing Defaults ================ If you want to set default values for `configure' scripts to share, you can create a site shell script called `config.site' that gives default values for variables like `CC', `cache_file', and `prefix'. `configure' looks for `PREFIX/share/config.site' if it exists, then `PREFIX/etc/config.site' if it exists. Or, you can set the `CONFIG_SITE' environment variable to the location of the site script. A warning: not all `configure' scripts look for a site script. 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'. FILE defaults to `/dev/null' to disable caching. `--config-cache' `-C' Alias for `--cache-file=config.cache'. `--quiet' `--silent' `-q' Do not print messages saying which checks are being made. To suppress all normal output, redirect it to `/dev/null' (any error messages will still be shown). `--srcdir=DIR' Look for the package's source code in directory DIR. Usually `configure' can determine that directory automatically. `configure' also accepts some other, not widely useful, options. Run `configure --help' for more details. autossh-1.4e/autossh.spec010064400017500000024000000022401246630602600151110ustar00hardingstaffSummary: Automatically restart SSH sessions and tunnels Name: autossh Version: 1.4b Release: 1 License: Distributable Group: Applications/Networking Vendor: Carson Harding URL: http://www.harding.motd.ca/autossh/ Source0: %{name}-%{version}.tgz BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-buildroot %description autossh is a program to start a copy of ssh and monitor it, restarting it as necessary should it die or stop passing traffic. %prep %setup -q %build %configure %{__make} %install rm -rf $RPM_BUILD_ROOT install -d $RPM_BUILD_ROOT{%{_bindir},%{_mandir}/man1} install autossh $RPM_BUILD_ROOT%{_bindir} install autossh.1 $RPM_BUILD_ROOT%{_mandir}/man1 %clean rm -rf $RPM_BUILD_ROOT %files %defattr(644,root,root,755) %doc README CHANGES autossh.host rscreen %attr(755,root,root) %{_bindir}/* %{_mandir}/man1/* %changelog * Fri Mar 28 2008 Carson Harding - update to 1.4b * Sat May 20 2006 Carson Harding - update to 1.4 and use autoconf * Wed Feb 02 2005 Carson Harding - very minor changes to spec file * Thu Oct 21 2004 Ron Yorston 1.3-1 - Original version