chase-0.5.2/0002777000175000017500000000000010067245466007622 500000000000000chase-0.5.2/README0000644000175000017500000000060607726453712010421 00000000000000Chase ===== Chase is a small utility for chasing symbolic links. You will find installation instructions in the file INSTALL, and a summary of the user-visible changes in the file NEWS. If your copy of the sources do not contain a configure script, you can run the autogen.sh script instead. You need GNU Autoconf for that. Please, report bugs to Antti-Juhani Kaijanaho . chase-0.5.2/configure.ac0000644000175000017500000000574610067245235012030 00000000000000dnl Process this file with autoconf to produce a configure script. dnl dnl Copyright (C) 1998-2000 Antti-Juhani Kaijanaho dnl Copyright (C) 2002-2003 Andreas Rottmann dnl dnl This is free software; you can redistribute it and/or modify dnl it under the terms of the GNU General Public License as published by dnl the Free Software Foundation; either version 2, or (at your option) dnl any later version. dnl dnl This software is distributed in the hope that it will be useful, dnl but WITHOUT ANY WARRANTY; without even the implied warranty of dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the dnl GNU General Public License for more details. dnl dnl You should have received a copy of the GNU General Public License dnl along with this package; see the file COPYING. 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then # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args. set dummy ${ac_tool_prefix}gcc; 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="${ac_tool_prefix}gcc" echo "$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 "gcc", so it can be a program name with args. set dummy gcc; 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="gcc" 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 if test -z "$CC"; then if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. set dummy ${ac_tool_prefix}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="$CC" # Let the user override the test. else as_save_IFS=$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. Does anybody # maintain Libtool? --akim. export ac_cv_exeext break;; * ) break;; esac done else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 { { echo "$as_me:$LINENO: error: C compiler cannot create executables See \`config.log' for more details." >&5 echo "$as_me: error: C compiler cannot create executables See \`config.log' for more details." >&2;} { (exit 77); exit 77; }; } fi ac_exeext=$ac_cv_exeext echo "$as_me:$LINENO: result: $ac_file" >&5 echo "${ECHO_T}$ac_file" >&6 # Check the compiler produces executables we can run. If not, either # the compiler is broken, or we cross compile. echo "$as_me:$LINENO: checking whether the C compiler works" >&5 echo $ECHO_N "checking whether the C compiler works... $ECHO_C" >&6 # FIXME: These cross compiler hacks should be removed for Autoconf 3.0 # If not cross compiling, check that we can run a simple program. if test "$cross_compiling" != yes; then if { ac_try='./$ac_file' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then cross_compiling=no else if test "$cross_compiling" = maybe; then cross_compiling=yes else { { echo "$as_me:$LINENO: error: cannot run C compiled programs. If you meant to cross compile, use \`--host'. See \`config.log' for more details." >&5 echo "$as_me: error: cannot run C compiled programs. If you meant to cross compile, use \`--host'. See \`config.log' for more details." >&2;} { (exit 1); exit 1; }; } fi fi fi echo "$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 $ac_status); }; then # If both `conftest.exe' and `conftest' are `present' (well, observable) # catch `conftest.exe'. For instance with Cygwin, `ls conftest' will # work properly (i.e., refer to `conftest.exe'), while it won't with # `rm'. for ac_file in conftest.exe conftest conftest.*; do test -f "$ac_file" || continue case $ac_file in *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) ;; *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` export ac_cv_exeext break;; * ) break;; esac done else { { echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link See \`config.log' for more details." >&5 echo "$as_me: error: cannot compute suffix of executables: cannot compile and link See \`config.log' for more details." >&2;} { (exit 1); exit 1; }; } fi rm -f conftest$ac_cv_exeext echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5 echo "${ECHO_T}$ac_cv_exeext" >&6 rm -f conftest.$ac_ext EXEEXT=$ac_cv_exeext ac_exeext=$EXEEXT echo "$as_me:$LINENO: checking for suffix of object files" >&5 echo $ECHO_N "checking for suffix of object files... $ECHO_C" >&6 if test "${ac_cv_objext+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.o conftest.obj if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>&5 ac_status=$? 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 $ac_compile) 2>conftest.er1 ac_status=$? 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INSTALL=$ac_install_sh fi fi echo "$as_me:$LINENO: result: $INSTALL" >&5 echo "${ECHO_T}$INSTALL" >&6 # Use test -z because SunOS4 sh mishandles braces in ${var-val}. # It thinks the first close brace ends the variable substitution. test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}' test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}' test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644' copy_location=\"COPYING\" # Check whether --enable-copying or --disable-copying was given. if test "${enable_copying+set}" = set; then enableval="$enable_copying" if test "$enableval" = no then copy_location=\"COPYING\" else copy_location=\"$enableval\" fi fi; cat >>confdefs.h <<_ACEOF #define COPYING_LOCATION $copy_location _ACEOF ndebug=1 # Check whether --enable-debug or --disable-debug was given. if test "${enable_debug+set}" = set; then enableval="$enable_debug" if test "$enableval" = no then ndebug=1 else ndebug=0 fi else ndebug=1 fi; cat >>confdefs.h <<_ACEOF #define NDEBUG $ndebug _ACEOF LIBGC_LIBS="" LIBGC_CFLAGS="" echo "$as_me:$LINENO: checking for Boehm's GC headers" >&5 echo $ECHO_N "checking for Boehm's GC headers... $ECHO_C" >&6 dir="" for basedir in /usr/local /usr; do for x in "" /gc; do dir=$basedir/include$x if test -f $dir/gc.h; then break; fi; dir="" done done if test -n "$dir"; then echo "$as_me:$LINENO: result: $dir" >&5 echo "${ECHO_T}$dir" >&6 LIBGC_CFLAGS="-I$dir" echo "$as_me:$LINENO: checking for GC_malloc_atomic in -lgc" >&5 echo $ECHO_N "checking for GC_malloc_atomic in -lgc... $ECHO_C" >&6 if test "${ac_cv_lib_gc_GC_malloc_atomic+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lgc $LIBS" cat >conftest.$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 GC_malloc_atomic (); int main () { GC_malloc_atomic (); ; 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 $ac_status); }; }; then ac_cv_lib_gc_GC_malloc_atomic=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_lib_gc_GC_malloc_atomic=no fi rm -f conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi echo "$as_me:$LINENO: result: $ac_cv_lib_gc_GC_malloc_atomic" >&5 echo "${ECHO_T}$ac_cv_lib_gc_GC_malloc_atomic" >&6 if test $ac_cv_lib_gc_GC_malloc_atomic = yes; then LIBGC_LIBS="-lgc" fi fi if test -z "LIBGC_LIBS"; then { { echo "$as_me:$LINENO: error: You need Boehm's garbage collector." >&5 echo "$as_me: error: You need Boehm's garbage collector." >&2;} { (exit 1); exit 1; }; } fi 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. 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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.$ac_ext <<_ACEOF /* end confdefs.h. */ #include #if ((' ' & 0x0FF) == 0x020) # define ISLOWER(c) ('a' <= (c) && (c) <= 'z') # define TOUPPER(c) (ISLOWER(c) ? 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((c) | 0x40) : (c)) #endif #define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) int main () { int i; for (i = 0; i < 256; i++) if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2); exit (0); } _ACEOF rm -f conftest$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 $ac_cv_header_stdc = yes; then cat >>confdefs.h <<\_ACEOF #define STDC_HEADERS 1 _ACEOF fi # On IRIX 5.3, sys/types and inttypes.h are conflicting. for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ inttypes.h stdint.h unistd.h do as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6 if eval "test \"\${$as_ac_Header+set}\" = set"; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ $ac_includes_default #include <$ac_header> _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>conftest.er1 ac_status=$? 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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 chase-0.5.2/AUTHORS0000644000175000017500000000005007726453712010602 00000000000000Antti-Juhani Kaijanaho chase-0.5.2/COPYING0000644000175000017500000004312707726453712010601 00000000000000 GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as "you". Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by running the Program). Whether that is true depends on what the Program does. 1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program. You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee. 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change. b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License. c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling the user how to view a copy of this License. (Exception: if the Program itself is interactive but does not normally print such an announcement, your work based on the Program is not required to print an announcement.) These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it. Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, the intent is to exercise the right to control the distribution of derivative or collective works based on the Program. In addition, mere aggregation of another work not based on the Program with the Program (or with a work based on the Program) on a volume of a storage or distribution medium does not bring the other work under the scope of this License. 3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above provided that you also do one of the following: a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, c) Accompany it with the information you received as to the offer to distribute corresponding source code. (This alternative is allowed only for noncommercial distribution and only if you received the program in object code or executable form with such an offer, in accord with Subsection b above.) The source code for a work means the preferred form of the work for making modifications to it. For an executable work, complete source code means all the source code for all modules it contains, plus any associated interface definition files, plus the scripts used to control compilation and installation of the executable. However, as a special exception, the source code distributed need not include anything that is normally distributed (in either source or binary form) with the major components (compiler, kernel, and so on) of the operating system on which the executable runs, unless that component itself accompanies the executable. If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to copy the source along with the object code. 4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance. 5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, by modifying or distributing the Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it. 6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients' exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to this License. 7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason (not limited to patent issues), conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot distribute so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not distribute the Program at all. For example, if a patent license would not permit royalty-free redistribution of the Program by all those who receive copies directly or indirectly through you, then the only way you could satisfy both it and this License would be to refrain entirely from distribution of the Program. If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply and the section as a whole is intended to apply in other circumstances. It is not the purpose of this section to induce you to infringe any patents or other property right claims or to contest validity of any such claims; this section has the sole purpose of protecting the integrity of the free software distribution system, which is implemented by public license practices. Many people have made generous contributions to the wide range of software distributed through that system in reliance on consistent application of that system; it is up to the author/donor to decide if he or she is willing to distribute software through any other system and a licensee cannot impose that choice. This section is intended to make thoroughly clear what is believed to be a consequence of the rest of this License. 8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the limitation as if written in the body of this License. 9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of this License, you may choose any version ever published by the Free Software Foundation. 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally. NO WARRANTY 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) 19yy This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) 19yy name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. , 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Library General Public License instead of this License. chase-0.5.2/ChangeLog0000644000175000017500000000633110067245277011311 000000000000002004-06-26 Andreas Rottmann * configure.ac: Bumped COPYRIGHT_YEAR. Bumped VERSION to 0.5.2. * chase.c (handle_file, chase_and_report): Made static. * fname.c: #include "fname.h". * chase.1: Changed author and bug report information. 2003-10-13 Andreas Rottmann * chase.c, chase.1: Fixed "treshold" misspelling. 2003-08-26 Andreas Rottmann * configure.ac: Re-write of configure.in using automake. * Makefile.am: Automake replacement for Makefile.in. * Makefile.in, configure.in: Removed. 2000-01-02 Antti-Juhani Kaijanaho * configure.in: Bumped package version to 0.5. * Makefile.in: Remove config.h from HDRS. * Makefile.in: Clean off also stamp-h * chase.c (struct filelist_t): New type. * chase.c (record_chain_p): New global. * chase.c (chase_symlink): Added code to detect symlink loops. * chase.c (chase_symlink): Added the iter_count variable and code to warn and give up at warn_count and giveup_count. * chase.c (warn_count, giveup_count): New globals. * chase.c (main): Added the -w and -l options. * chase.c (ERRMSG): New macro. * configure.in: Added new copyright year. 1999-07-24 Antti-Juhani Kaijanaho * configure.in: Bumped package version number to 0.4. * chase.c (main): Added option -0. * chase.c (fread_until_null): New function. 1999-02-03 Antti-Juhani Kaijanaho * configure.in: Bumped package version number to 0.3.1. * chase.c (main): When no files are specified with -f, read stdin. * chase.c (handle_file): New function. * chase.c (main): Do not close stdin. 1999-01-15 Antti-Juhani Kaijanaho * configure.in: Bumped package version number to 0.3. * Makefile.in: distclean should clean up some of the files generated by ./configure. 1998-12-18 Antti-Juhani Kaijanaho * chase.c, gcollect.h, configure.in: Added preliminary support for i18n. * configure.in: Added extensive tests for used library functions and headers. * chase.c (main): Added support for the -f option. * chase.c (main): Separated off the chase and report routine. * chase.c (chase_and_report): New function * chase.c (chase_symlink): The saved work directory is now absolutified. 1998-12-17 Antti-Juhani Kaijanaho * configure.in: Removed the test for -lpthreads. Debian was broken when I added it initially. 1998-12-09 Antti-Juhani Kaijanaho * configure.in: Bumped package version number to 0.2. * Makefile.in: Do not distclean when making dist. * autogen.sh: New file. * Makefile.in: Added autogen.sh to DISTFILES * chase.c (main): Made chase exit failure if any of the files were nonexistent or dangling. * fname.c (fname_dir, fname_chop_dir): Fixed the bug that caused these functions return "" when fname was a file or directory in the root directory. * chase.c (chase_symlink): Clean up the code in order to generate more coherent error messages. * chase.c (xchdir): New macro. * chase.c (chase_symlink): Simplify the loop condition and the associated assert at the top of the loop body. 1998-12-08 Antti-Juhani Kaijanaho * ChangeLog starts here. Chase is now at version 0.1. chase-0.5.2/INSTALL0000644000175000017500000000153407726453712010573 00000000000000The simple way to install Chase is ./configure make make install You need Boehm's garbage collector library. A source distribution can be fetched from http://reality.sgi.com/employees/boehm_mti/gc_source/ it is not included with Chase. A binary distribution may be available through your vendor - at least Debian GNU/Linux has it starting from the Slink release (2.1, under development at the time of this writing). The configure script can handle many options; do a ./configure --help to get a brief summary. You may want to specify --enable-copying=fname, where fname is the location of an installed copy of the GNU General Public License, version 2 or later. On a Debian GNU/Linux system this would become ./configure --enable-copying=/usr/doc/copyright/GPL -- Antti-Juhani Kaijanaho Wed, 9 Dec 1998 20:16:06 +0200 chase-0.5.2/NEWS0000644000175000017500000000220307742360115010223 00000000000000NEWS for Chase 0.5.2 ------------------- Bugfix release (the "treshold" misspelling has been fixed). NEWS for Chase 0.5.1 ------------------- Chase has a new maintainer, Andreas Rottmann . Chase now uses automake. NEWS at Chase 0.5 Chase now detects symlink loops. To disable this, use -D. Chase now has guards for unbounded chains of symlinks. See the manual page for details. NEWS at Chase 0.4: New option --null (-0), useful with find's -print0. See the man page for details. NEWS at Chase 0.3.1: The -f option can now be used without any file names given on the command line. This is taken to mean the standard input stream. NEWS at Chase 0.3: There is a new command-line option --from-file (-f), which allows chase to read the filenames to chase from a file. See the manual page for more details. NEWS at Chase 0.2: This version consists mainly of bug fixes. The most notable new feature is that chase will now use exit codes. See the manual page for more details. This is the first version released to general public. NEWS at Chase 0.1: No news is good news. This is the initial version, for local testing. chase-0.5.2/compile0000755000175000017500000000707210052003301011066 00000000000000#! /bin/sh # Wrapper for compilers which do not understand `-c -o'. scriptversion=2003-11-09.00 # Copyright (C) 1999, 2000, 2003 Free Software Foundation, Inc. # Written by Tom Tromey . # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # This file is maintained in Automake, please report # bugs to or send patches to # . case $1 in '') echo "$0: No command. Try \`$0 --help' for more information." 1>&2 exit 1; ;; -h | --h*) cat <<\EOF Usage: compile [--help] [--version] PROGRAM [ARGS] Wrapper for compilers which do not understand `-c -o'. Remove `-o dest.o' from ARGS, run PROGRAM with the remaining arguments, and rename the output as expected. 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"$prog" $args status=$? if test -f "$cofile"; then mv "$cofile" "$ofile" fi rmdir $lockdir exit $status # Local Variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-end: "$" # End: chase-0.5.2/depcomp0000755000175000017500000003541010052003301011062 00000000000000#! /bin/sh # depcomp - compile a program generating dependencies as side-effects scriptversion=2004-04-25.13 # Copyright (C) 1999, 2000, 2003, 2004 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA # 02111-1307, USA. # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # Originally written by Alexandre Oliva . case $1 in '') echo "$0: No command. Try \`$0 --help' for more information." 1>&2 exit 1; ;; -h | --h*) cat <<\EOF Usage: depcomp [--help] [--version] PROGRAM [ARGS] Run PROGRAMS ARGS to compile a file, generating dependencies as side-effects. 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"$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile" rm -f "$tmpdepfile" ;; none) exec "$@" ;; *) echo "Unknown depmode $depmode" 1>&2 exit 1 ;; esac exit 0 # Local Variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-end: "$" # End: chase-0.5.2/install-sh0000755000175000017500000002244110052003301011511 00000000000000#!/bin/sh # install - install a program, script, or datafile scriptversion=2004-04-01.17 # This originates from X11R5 (mit/util/scripts/install.sh), which was # later released in X11R6 (xc/config/util/install.sh) with the # following copyright and license. # # Copyright (C) 1994 X Consortium # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to # deal in the Software without restriction, including without limitation the # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or # sell copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 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You may also peek at any GNU archive site, in case some other package would contain this missing \`$1' program." exit 1 ;; esac exit 0 # Local variables: # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-end: "$" # End: chase-0.5.2/chase.c0000644000175000017500000003540610067244770010770 00000000000000/* chase - chase a symbolic link Copyright (C) 1998, 1999, 2000 Antti-Juhani Kaijanaho This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA The author can be reached via mail at (ISO 8859-1 charset for the city) Antti-Juhani Kaijanaho Helvintie 2 e as 9 FIN-40500 JYVÄSKYLÄ FINLAND EUROPE and via electronic mail from gaia@iki.fi If you have a choice, use the email address; it is more likely to stay current. */ /* The algorithm is very simple: we check, whether the current file is a symlink, and if it is, we loop with the destination as the current file. */ #include #include #include #include #include #include #include #include #include "config.h" #include "gcollect.h" #include "fname.h" #define _(String) (String) #define N_(String) (String) #define textdomain(Domain) #define bindtextdomain(Package, Directory) /* This structure is used to form a list of file names for loop detection. */ struct filelist_t { char * fn; struct filelist_t * rest; }; /* Globals */ char * program_name; /* program_name points to argv[0]. */ int verbose = 0; /* Are we being verbose? */ int record_chain_p = 1; /* Should we record the chain of symlinks? */ unsigned long int warn_count = 30; /* Warn after this many iterations. */ unsigned long int giveup_count = 500; /* Give up after this many iterations. */ /* The following macros are used to control what gets displayed and what doesn't. */ #if (NDEBUG == 1) # define CHAT(str,fn) do { ; } while (0) #else /* NDEBUG != 1 */ # define CHAT(str,fn) fprintf (stderr, _ ("Note (%s): %s\n"), fn, str) #endif /* NDEBUG != 1 */ #define VERBOSE(str,fn) do { if (verbose) printf ("%s%s\n", str, fn); \ } while (0); /* Print an error message concerning file fn in directory dir (must end in a slash), based on errno. */ #define PRERR(dir,fn) fprintf (stderr, "%s: %s%s: %s\n", program_name, \ dir, fn, strerror (errno)) /* Print an error message concerning file fn in directory dir (must end in a slash). */ #define ERRMSG(msg,f,dir) fprintf (stderr, "%s: %s%s: %s\n", program_name, \ dir, f, msg) #define IMPLIES(p,q) ( (! (p)) || (q)) /* Change work directory to wd, with perroring on error. Return from the parent function with return value err, if error happened. The do...while(0) is a trick to allow xchdir be treated like a function call. */ #define xchdir(wd,err) \ do { \ if (chdir (wd) == -1) \ { \ PRERR("",wd); \ return (err); \ } \ } while (0) /* Return a freshly allocated string whose content was read from f, or 0 on error or end of file. The return value is a block of text read from the file, whose end is signalled in both the file and the return value by a null character. fname is used with status reporting. */ static char * fread_until_null(FILE * f, const char * fname) { char * rv; size_t i = 0; int c; size_t rvlen = 16; assert (f != 0); assert (fname != 0); rv = gc_xmalloc(rvlen); CHAT (_ ("reading..."), fname); while ( (c = getc(f)) != EOF) { if (i >= rvlen) rv = gc_xrealloc(rv, rvlen *= 2); *(rv + i++) = (unsigned char) c; if (c == 0) break; } if (c == EOF) { if (ferror(f)) perror(0); return 0; } return rv; } /* Return a freshly allocated string whose content was read from f, or 0 on error or end of file. The return value is a complete text line read from the file, without the trailing newline. fname is used with status reporting. */ static char * freadline (FILE * f, const char * fname) { char * rv; char * rvptr; /* Where are we now writing? */ size_t rvlen = 0; const size_t rvlen_inc = 80; assert (f != 0); assert (fname != 0); rvlen = rvlen_inc; rv = rvptr = gc_xmalloc (rvlen); *rvptr = '\0'; do { char * result; assert (*rvptr == '\0'); CHAT (_ ("reading..."), fname); result = fgets (rvptr, rvlen - (rvptr - rv), f); if (result == 0) return 0; /* We might write more... */ rvptr = rvptr + strlen (rvptr); assert (rvptr >= rv); if (rvptr == rv || rvptr [-1] != '\n') { ptrdiff_t rvptr_rv = rvptr - rv; CHAT (_ ("line is longer than buffer, resizing..."), fname); rvlen += rvlen_inc; rv = gc_xrealloc (rv, rvlen); rvptr = rv + rvptr_rv; } } while (rvptr == rv || rvptr [-1] != '\n'); assert (rvptr > rv); assert (*rvptr == '\0'); if (rvptr [-1] == '\n') rvptr [-1] = '\0'; return rv; } /* Return value is a freshly allocated copy of the name of the file that is not itself a symlink but that is reachable via symlinks. */ static char * chase_symlink (char * fname) { char * buf = 0; char * wd; /* the original work directory */ size_t blen = 0; const size_t blen_inc = 20; int result = 0; unsigned long int iter_count = 0; struct filelist_t * flist = 0; blen = blen_inc; buf = gc_xmalloc (blen); wd = fname_absolutify (gnu_getcwd ()); /* We want to be in the directory that contains the file fname; therefore, we can only use its base name from now on. */ xchdir (fname_dir (fname), 0); fname = fname_chopdir (fname); do { struct filelist_t * it; char * dir; char * fnamewithdir; assert (buf != 0); assert (blen != 0); assert (result != -1); dir = gnu_getcwd (); fnamewithdir = gc_xmalloc (strlen (dir) + strlen (fname) + 1); strcat (strcpy (fnamewithdir, dir), fname); /* Detect loops. This is a O(n^2) algorithm (when combined with the enclosing loop), but it does not matter, as n is usually very small. */ for (it = flist; it != 0; it = it->rest) { CHAT (_ ("it->fn"), it->fn); CHAT (_ ("fnamewithdir"), fnamewithdir); if (strcmp(it->fn, fnamewithdir) == 0) { ERRMSG (_ ("symlink loop detected, giving up..."), fname, dir); return 0; } } if (record_chain_p) { struct filelist_t * new; new = gc_xmalloc_container (sizeof (struct filelist_t)); new->fn = fnamewithdir; new->rest = flist; flist = new; } ++iter_count; if (giveup_count != 0 && iter_count >= giveup_count) { ERRMSG (_ ("too many symlink hops, giving up..."), fname, dir); return 0; } if (warn_count != 0 && iter_count % warn_count == 0 && iter_count >= warn_count) { ERRMSG (_ ("quite many symlink hops, hope we're not looping..."), fname, dir); } while (1) { result = readlink (fname, buf, blen); if (result == -1 && errno != EINVAL) { PRERR(dir, fname); return 0; } if (result == blen) { CHAT (_ ("buffer was too small, resizing..."), fname); blen += blen_inc; buf = gc_xrealloc (buf, blen); continue; } if (result != -1) { CHAT (_ ("read link"), fname); buf [result] = '\0'; /* Terminate the string. */ VERBOSE ("-> ", buf); fname = buf; /* In the next round we'll use this file. */ } break; } /* We want to be in the directory that contains the file fname; however, we can only use its base name from now on. */ xchdir (fname_dir (fname), 0); fname = fname_chopdir (fname); } while (result != -1); /* Now, we want the absolute path name to fname. */ fname = fname_absolutify (fname); xchdir (wd, 0); /* When we reach this point, we have a genuine non-symlink in fname. */ if (fname != buf) { /* Make the return value malloc()ed. */ fname = gc_xstrdup (fname); } return fname; } /* Chase name and report to user. Return zero iff the name was nonexistent or a dangling symlink. */ static int chase_and_report (const char * name) { char * s; char * fname; fname = gc_xstrdup (name); VERBOSE ("", fname); s = chase_symlink (fname); if (s == 0) return 0; else { puts (s); return 1; } } /* Chase all file names in f. Return zero iff some name was nonexistent or a dangling symlink. fname is used in diagnostics. reader is used to get the file name from f. It is supposed to be either freadline or fread_until_null. */ static int handle_file(FILE * f, char * (*reader)(FILE *, const char *), const char * fname) { char * line; int rv = 1; VERBOSE (_ ("Reading file names from "), fname); line = reader (f, fname); while (line != 0) { if (line [0] != '\0') rv = chase_and_report (line) ? rv : 0; else CHAT (_ ("empty file name found"), fname); line = reader (f, fname); } assert (line == 0); if (feof (f)) CHAT (_ ("bumped to eof"), fname); else PRERR("", fname); return rv; } /* main() was adopted from the example in GNU's getopt_long(3) manual page. */ int main (int argc, char * argv[]) { int c; int rv = EXIT_SUCCESS; int from_file = 0; char * (*reader)(FILE *, const char *) = freadline; /* i18n */ setlocale (LC_ALL, ""); bindtextdomain (PACKAGE, LOCALEDIR); textdomain (PACKAGE); program_name = argv[0]; while (1) { int option_index = 0; static struct option long_options[] = { {"from-file", 0, 0, (int) 'f'}, {"loop-warn-threshold", 1, 0, (int) 'w'}, {"loop-fail-threshold", 1, 0, (int) 'l'}, /* the next two are just for compatibility's sake */ {"loop-warn-treshold", 1, 0, (int) 'w'}, {"loop-fail-treshold", 1, 0, (int) 'l'}, {"disable-loop-detection", 0, 0, (int) 'D'}, {"null", 0, 0, (int) '0'}, {"verbose", 0, &verbose, 1 }, {"help", 0, 0, (int) 'h'}, {"version", 0, 0, (int) 'v'}, {0, 0, 0, 0} }; c = getopt_long (argc, argv, "0Dfhl:vw:", long_options, &option_index); if (c == -1) break; switch (c) { case 'D': record_chain_p = 0; break; case '0': reader = fread_until_null; /* fall through to 'f' */ case 'f': from_file = 1; break; case 'v': printf ("chase %s\n", VERSION); printf ("Copyright (C) %s Antti-Juhani Kaijanaho.\n", COPYRIGHT_YEAR); puts (_ ("This program comes with NO WARRANTY,")); puts (_ ("to the extent permitted by law.")); puts (_ ("You may redistribute copies of this program")); puts (_ ("under the terms of the GNU General Public License,")); puts (_ ("version 2 or later. For more information about")); printf (_ ("these matters, see the file %s .\n"), COPYING_LOCATION); return 0; case 'h': printf ("%s: %s [options ... ] [file ... ]\n" " %s -h|--help\n %s -v|--version\n", _ ("Usage"), program_name, program_name, program_name); puts (""); puts (_ ("Options:")); puts (" --verbose"); puts (_ (" Chat about what is being done.")); puts (" -D, --disable-loop-detection"); puts (_ (" Do not keep a record of the chain of symlinks relevant")); puts (_ (" to the file name being chased. This inhibits reliable")); puts (_ (" detection of symlink loops")); puts (" -f, --from-file"); puts (_ (" Treat the file names as sources for names to chase.")); puts (" -0, --null"); puts (_ (" Treat null as the file name separator instead of newline.")); puts (_ (" Implies -f.")); puts (" -w WCOUNT, --loop-warn-threshold=WCOUNT"); puts (" -l LCOUNT, --loop-fail-threshold=LCOUNT"); puts (_ (" Set the threshold for warning about a possible symlink loop")); puts (_ (" (WCOUNT) and for failing because of one (LCOUNT). Zero")); printf (_ (" disables the check. Default values: WCOUNT %lu, LCOUNT %lu.\n"), warn_count, giveup_count); puts (" -h, --help"); puts (_ (" Output this usage summary and exit successfully.")); puts (" -v, --version"); puts (_ (" Show version information and exit successfully.")); puts (""); puts (_ ("Please report bugs to .")); return 0; case 'l': { char * tail; errno = 0; giveup_count = strtoul (optarg, &tail, 10); if (errno != 0) { perror ("loop-fail-threshold"); exit (EXIT_FAILURE); } } break; case 'w': { char * tail; errno = 0; warn_count = strtoul (optarg, &tail, 10); if (errno != 0) { perror ("loop-warn-threshold"); exit (EXIT_FAILURE); } } break; default: break; } } if (from_file) { if (optind == argc) { rv = handle_file (stdin, reader, gc_xstrdup ("(stdin)")) ? rv : EXIT_FAILURE; } else for (/* using inherited optind */; optind < argc; optind++) { FILE * f; char * fname; if (strcmp (argv [optind], "-") == 0) { f = stdin; fname = gc_xstrdup ("(stdin)"); } else { fname = argv [optind]; f = fopen (fname, "r"); if (f == NULL) { PRERR ("", fname); continue; } } rv = handle_file (f, reader, fname) ? rv : EXIT_FAILURE; if (f != stdin) fclose (f); } } else { for (/* using inherited optind */; optind < argc; optind++) rv = chase_and_report (argv [optind]) ? rv : EXIT_FAILURE; } return rv; } chase-0.5.2/fname.c0000644000175000017500000000766610067244604010776 00000000000000/* chase - chase a symbolic link Copyright (C) 1998 Antti-Juhani Kaijanaho This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA The author can be reached via mail at (ISO 8859-1 charset for the city) Antti-Juhani Kaijanaho Helvintie 2 e as 9 FIN-40500 JYVÄSKYLÄ FINLAND EUROPE and via electronic mail from gaia@iki.fi If you have a choice, use the email address; it is more likely to stay current. */ /* $Id: fname.c,v 1.2 1998/12/09 18:20:13 ajk Exp $ */ #include #include #include #include "gcollect.h" #include "fname.h" /* from GNU libc 2.0 manual, slighty modified: now the return value is guaranteed to contain a slash at the end.*/ char * gnu_getcwd (void) { int size = 100; char *buffer = (char *) gc_xmalloc (size); size_t blen; while (1) { char *value = getcwd (buffer, size); if (value != 0) break; size += 20; buffer = (char *) gc_xmalloc (size); } blen = strlen (buffer); if (buffer [blen - 1] != '/') { if (size == blen + 1) buffer = gc_xrealloc (buffer, blen); buffer [blen] = '/'; buffer [blen+1] = '\0'; } return buffer; } /* Return a fresh string containing the parent directory part of the file name. */ char * fname_dir (const char *fname) { char * rv; char * slash; assert (fname != 0); assert (*fname != '\0'); rv = gc_xstrdup (fname); slash = strrchr (rv, '/'); if (slash != 0) *slash = '\0'; else rv = "."; /* An empty return value should really be "/". */ if (*rv == 0) { rv [0] = '/'; rv [1] = '\0'; } return rv; } /* Return a fresh string containing all but the parent directory part of the file name. */ char * fname_chopdir (const char *fname) { char * rv; char * slash; assert (fname != 0); rv = gc_xstrdup (fname); slash = strrchr (rv, '/'); if (slash != 0) rv = slash + 1; /* An empty return value should really be ".". */ if (*rv == 0) { rv [0] = '.'; rv [1] = '\0'; } return rv; } /* Return a fresh string containing an absolute path to fname. fname is assumed NOT to be a symlink, so optimizations ("./" -> "") are made. Tilde expansion is not made. */ char * fname_absolutify (const char * fname) { char * wd; /* Current work directory. */ char * rv; char * ptr; char * prev_ptr; wd = gnu_getcwd (); /* The return value cannot grow longer due to simplifications, so it's safe to allocate a tight buffer. */ if (fname [0] == '/') rv = gc_xstrdup (fname); else { rv = gc_xmalloc (strlen (wd) + strlen (fname) + 1); strcpy (rv, wd); strcat (rv, fname); } /* Now rv contains an absolute path name. We must simplify it: remove all "/./"'s first. */ ptr = rv; while (ptr != 0) { ptr = strstr (ptr, "/./"); if (ptr != 0) memmove(ptr, ptr + 2, strlen (ptr + 2) + 1); } /* Then, for every "/../" encountered, remove it and its preceding directory name, if any. */ ptr = rv; while (ptr != 0 && *ptr != '\0') { prev_ptr = ptr; ptr = strchr (ptr+1, '/'); if (ptr != 0 && ptr [1] == '.' && ptr [2] == '.' && ptr [3] == '/') { memmove (prev_ptr, ptr + 3, strlen (ptr + 3) + 1); ptr = prev_ptr; } } return rv; } chase-0.5.2/fname.h0000644000175000017500000000345107726453712011001 00000000000000/* chase - chase a symbolic link Copyright (C) 1998 Antti-Juhani Kaijanaho This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA The author can be reached via mail at (ISO 8859-1 charset for the city) Antti-Juhani Kaijanaho Helvintie 2 e as 9 FIN-40500 JYVÄSKYLÄ FINLAND EUROPE and via electronic mail from gaia@iki.fi If you have a choice, use the email address; it is more likely to stay current. */ /* $Id: fname.h,v 1.2 1998/12/09 18:20:13 ajk Exp $ */ #ifndef FNAME_H__ #define FNAME_H__ /* Return a fresh string containing the name of the current work directory. */ char * gnu_getcwd (void); /* Return a fresh string containing the parent directory part of the file name. */ char * fname_dir (const char *fname); /* Return a fresh string containing all but the parent directory part of the file name. */ char * fname_chopdir (const char *fname); /* Return a fresh string containing an absolute path to fname. fname is assumed NOT to be a symlink, so optimizations ("./" -> "") are made. Tilde expansion is not made. */ char * fname_absolutify (const char * fname); #endif /* FNAME_H__ */ chase-0.5.2/gcollect.h0000644000175000017500000000520307726453712011504 00000000000000/* chase - chase a symbolic link Copyright (C) 1998, 2000 Antti-Juhani Kaijanaho This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA The author can be reached via mail at (ISO 8859-1 charset for the city) Antti-Juhani Kaijanaho Helvintie 2 e as 9 FIN-40500 JYVÄSKYLÄ FINLAND EUROPE and via electronic mail from gaia@iki.fi If you have a choice, use the email address; it is more likely to stay current. */ /* $Id: gcollect.h,v 1.2 1999/02/03 18:13:51 ajk Exp $ */ #ifndef GCOLLECT_H__ #define GCOLLECT_H__ #include #include #include #include #include #define _(String) (String) #define N_(String) (String) #define textdomain(Domain) #define bindtextdomain(Package, Directory) /* The following gc-x* functions are our interface to the garbage collector. They are interface-compatible with the routines x((re|m)alloc|strdup) in Lars Wirzenius' publib. NOTE: gc_xmalloc assumes that the data in the memory area it allocates does not include pointers. */ inline static void * gc_xmalloc (size_t size) { void * rv; rv = GC_malloc_atomic (size); if (rv == 0) { fputs (_ ("Cannot allocate memory."),stderr); exit (EXIT_FAILURE); } return rv; } /* This is like gc_xmalloc except that the allocated memory block is allowed to contain pointers. */ inline static void * gc_xmalloc_container (size_t size) { void * rv; rv = GC_malloc (size); if (rv == 0) { fputs (_ ("Cannot allocate memory."),stderr); exit (EXIT_FAILURE); } return rv; } inline static void * gc_xrealloc (void * ptr, size_t size) { void * rv; rv = GC_realloc (ptr, size); if (rv == 0) { fputs (_ ("Cannot allocate memory."), stderr); exit (EXIT_FAILURE); } return rv; } inline static char * gc_xstrdup (const char * str) { char * rv; assert (str != 0); rv = gc_xmalloc (strlen (str) + 1); strcpy (rv, str); return rv; } #endif /* GCOLLECT_H__ */ chase-0.5.2/autogen.sh0000755000175000017500000000127407726460211011534 00000000000000#! /bin/sh srcdir=`dirname $0` test -z "$srcdir" && srcdir=. PKG_NAME="chase" (test -f "$srcdir/configure.ac" \ && test -f "$srcdir/chase.c") || { echo -n "**Error**: Directory "\`$srcdir\'" does not look like the" echo " top-level $PKG_NAME directory" exit 1 } echo "Building macros." aclocal $ACLOCAL_FLAGS echo "Building config header." autoheader echo "Building makefiles." automake --add-missing echo "Building configure." autoconf rm -f config.cache if test -z "$AUTOGEN_SUBDIR_MODE"; then echo "Running configure." ./configure --enable-maintainer-mode "$@" echo echo 'run "make"' echo else echo echo 'run "./configure ; make"' echo fi chase-0.5.2/chase.10000644000175000017500000001545210067244316010701 00000000000000.TH CHASE 1 "2000-01-02" "Chase 0.5" "Chase user's manual" \" Copyright (C) 1998-2000 Antti-Juhani Kaijanaho \" \" Permission is granted to make and distribute verbatim copies of \" this manual provided the copyright notice and this permission notice \" are preserved on all copies. \" \" Permission is granted to copy and distribute modified versions of this \" manual under the conditions for verbatim copying, provided that the \" entire resulting derived work is distributed under the terms of a \" permission notice identical to this one. \" \" Permission is granted to copy and distribute translations of this \" manual into another language, under the above conditions for modified \" versions, except that this permission notice may be included in \" translations approved by the authors of this manual instead of in \" the original English. \" .SH NAME chase \- chase symbolic links .SH SYNOPSIS .B chase [ .B --verbose | .B --from-file | .B -f | .B --null | .B -0 | .B --loop-warn-threshold COUNT | .B -w COUNT | .B --loop-fail-threshold COUNT | .B -l COUNT | .B --disable-loop-detection | .B -D ] .IR "" [ file ...] .sp .B chase -v | .B --version .sp .B chase -h | .B --help .SH DESCRIPTION .B Chase is a small utility that tracks down the name of the actual file that is truly accessed, when one hits a symbolic link. It chases the link, so to speak. .PP In normal operation, you give .B chase a name of an existing file. The program will then show you (or, more accurately, print to the standard output stream) the name of the real file that the original file referred to. It does not matter, if you give the program the name of a regular file; .B chase will just give you the same name back. You can give the utility the option .BR --verbose , in order to have it be more verbose in its operation. You can also give the program a list of files from which it will read the file names to be chased (see the option .BR --from-file ). .PP I'll give you a good example of a case where .B chase is useful. In a Debian GNU/Linux system, software installation is handled by the program .BR dpkg (8). There is a way to query .BR dpkg (8), which package a file belongs to. Unfortunately, this does not not grok all symlinks. This is a problem, since the Debian system uses symbolic links extensively for handling several flavours of a program (say, XEmacs and GNU Emacs and the versions 19 and 20 of both). Now with .BR chase, one can determine the real file easily and then using this result as an argument to .BR dpkg (8). Observe: .nf .sp ajk@ugh:~$ dpkg -S `which xemacs20` dpkg: /usr/bin/xemacs20 not found. ajk@ugh:~$ dpkg -S `which xemacs20 | xargs chase` xemacs20-nomule: /usr/bin/xemacs-20.4-nomule ajk@ugh:~$ .fi .PP When given multiple file names as arguments, .B chase will chase every one of them in order. .SH OPTIONS The following options are recognized by .BR chase : .IP --verbose Chat about what is being done. .IP "-f, --from-file" Treat the file names on the command line as sources for names to be chased. If this option is present, .B chase will read in each of the files given on the command line (both a sole dash "\-" and the absence of file names will be taken as meaning the standard input stream). Each line in the files is taken as a verbatim file name that will be chased like it had been given on the command line of a run without this option. There is no means for quoting the newline character; therefore only file names that do not contain newlines can be specified via the files. This restriction is lifted by the -0 option, though. However, literal spaces are preserved and are not interpreted as special. .IP "-0, --null" This option implies the option -f, which reads file names from a file. The -0 option modifies the behviour -f so that instead of treating lines in the file as file names, the file names are expected to be separated by null characters. This allows for specifying file names with newlines in them with -f. .IP "-w WCOUNT, --loop-warn-threshold=WCOUNT" .IP "-l LCOUNT, --loop-fail-threshold=LCOUNT" Set the threshold for warning about a possible symlink loop (WCOUNT) and for failing because of one (LCOUNT). There are default values, which you can find out by invoking .B chase with the argument --help. Using zero as WCOUNT or LCOUNT disables the check. .IP "-D, --disable-loop-detection" Normally .B chase keeps a record of all symlinks it has visited when chasing the current file. It uses this record to reliably detect symlink loops. However, checking the record slows the process a little (more for long chains of symlinks) and the record requires a small amount of memory (more for long chains of symlinks), so it may be desirable in some cases to inhibit this check. This option disables this loop detection and the associated recording of visited symlinks. When this option is in effect (assuming no bugs in the related code) .B chase runs in constant space and linear time relative to the length of the symlink chains encountered. .IP "-h, --help" Output a usage summary and exit successfully. .IP "-v, --version" Show version information and exit successfully. .SH DIAGNOSTICS The exit status is 0 if and only if all files given in the command lines exist and none of them are dangling symlinks. .PP The following messages are emitted by .B chase when it suspects or detects a symlink loop: .IP "quite many symlink hops, hope we're not looping..." This means that the chain of symlinks is longer than a given threshold. This may mean that the chain is infinite (and thus contains a loop somewhere). The threshold can be specificed by using the --loop-warn-threshold command line option. .IP "too many symlink hops, giving up..." This means that the chain of symlinks is longer than a given threshold. This usually means that the chain is infinite (and thus contains a loop somewhere). The threshold can be specificed by using the --loop-fail-threshold command line option. If you see this message, it means that .B chase has given up on that file. .IP "symlink loop detected, giving up..." The symlink chain is looping and therefore there is no result for the chase. .B Chase has given up on that file. .PP Additionally, .B Chase emits several error messages under problemous conditions. They all come from the system libraries, so the program has no control over the actual wording of the messages. They all follow the format "program name: file name: error message", where file name is the name of the offending file or directory. .SH BUGS .B Chase may have bugs. If you find them, please report them to or preferably via the Debian bugtracking system. .SH AUTHOR .B Chase has been written by Antti-Juhani Kaijanaho and is currently maintained by Andreas Rottmann . .SH "SEE ALSO" .BR find (1), .BR ln (1), .BR namei (1), .BR readlink (1), .BR readlink (2), .BR symlinks (1)