rinetd-0.73/0000755060175106010010000000000014013677657012513 5ustar00samNone00000000000000rinetd-0.73/.auto/0000755060175106010010000000000014013677656013540 5ustar00samNone00000000000000rinetd-0.73/.auto/compile0000755060175106010010000001634414011724777015121 0ustar00samNone00000000000000#! /bin/sh # Wrapper for compilers which do not understand '-c -o'. scriptversion=2018-03-07.03; # UTC # Copyright (C) 1999-2018 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, see . # 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 # . nl=' ' # We need space, tab and new line, in precisely that order. Quoting is # there to prevent tools from complaining about whitespace usage. IFS=" "" $nl" file_conv= # func_file_conv build_file lazy # Convert a $build file to $host form and store it in $file # Currently only supports Windows hosts. If the determined conversion # type is listed in (the comma separated) LAZY, no conversion will # take place. func_file_conv () { file=$1 case $file in / | /[!/]*) # absolute file, and not a UNC file if test -z "$file_conv"; then # lazily determine how to convert abs files case `uname -s` in MINGW*) file_conv=mingw ;; CYGWIN*|MSYS*) file_conv=cygwin ;; *) file_conv=wine ;; esac fi case $file_conv/,$2, in *,$file_conv,*) ;; mingw/*) file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'` ;; cygwin/*|msys/*) file=`cygpath -m "$file" || echo "$file"` ;; wine/*) file=`winepath -w "$file" || echo "$file"` ;; esac ;; esac } # func_cl_dashL linkdir # Make cl look for libraries in LINKDIR func_cl_dashL () { func_file_conv "$1" if test -z "$lib_path"; then lib_path=$file else lib_path="$lib_path;$file" fi linker_opts="$linker_opts -LIBPATH:$file" } # func_cl_dashl library # Do a library search-path lookup for cl func_cl_dashl () { lib=$1 found=no save_IFS=$IFS IFS=';' for dir in $lib_path $LIB do IFS=$save_IFS if $shared && test -f "$dir/$lib.dll.lib"; then found=yes lib=$dir/$lib.dll.lib break fi if test -f "$dir/$lib.lib"; then found=yes lib=$dir/$lib.lib break fi if test -f "$dir/lib$lib.a"; then found=yes lib=$dir/lib$lib.a break fi done IFS=$save_IFS if test "$found" != yes; then lib=$lib.lib fi } # func_cl_wrapper cl arg... # Adjust compile command to suit cl func_cl_wrapper () { # Assume a capable shell lib_path= shared=: linker_opts= for arg do if test -n "$eat"; then eat= else case $1 in -o) # configure might choose to run compile as 'compile cc -o foo foo.c'. eat=1 case $2 in *.o | *.[oO][bB][jJ]) func_file_conv "$2" set x "$@" -Fo"$file" shift ;; *) func_file_conv "$2" set x "$@" -Fe"$file" shift ;; esac ;; -I) eat=1 func_file_conv "$2" mingw set x "$@" -I"$file" shift ;; -I*) func_file_conv "${1#-I}" mingw set x "$@" -I"$file" shift ;; -l) eat=1 func_cl_dashl "$2" set x "$@" "$lib" shift ;; -l*) func_cl_dashl "${1#-l}" set x "$@" "$lib" shift ;; -L) eat=1 func_cl_dashL "$2" ;; -L*) func_cl_dashL "${1#-L}" ;; -static) shared=false ;; -Wl,*) arg=${1#-Wl,} save_ifs="$IFS"; IFS=',' for flag in $arg; do IFS="$save_ifs" linker_opts="$linker_opts $flag" done IFS="$save_ifs" ;; -Xlinker) eat=1 linker_opts="$linker_opts $2" ;; -*) set x "$@" "$1" shift ;; *.cc | *.CC | *.cxx | *.CXX | *.[cC]++) func_file_conv "$1" set x "$@" -Tp"$file" shift ;; *.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO]) func_file_conv "$1" mingw set x "$@" "$file" shift ;; *) set x "$@" "$1" shift ;; esac fi shift done if test -n "$linker_opts"; then linker_opts="-link$linker_opts" fi exec "$@" $linker_opts exit 1 } eat= case $1 in '') echo "$0: No command. 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EOF exit $? ;; -v | --v*) echo "compile $scriptversion" exit $? ;; cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \ icl | *[/\\]icl | icl.exe | *[/\\]icl.exe ) func_cl_wrapper "$@" # Doesn't return... ;; esac ofile= cfile= for arg do if test -n "$eat"; then eat= else case $1 in -o) # configure might choose to run compile as 'compile cc -o foo foo.c'. # So we strip '-o arg' only if arg is an object. eat=1 case $2 in *.o | *.obj) ofile=$2 ;; *) set x "$@" -o "$2" shift ;; esac ;; *.c) cfile=$1 set x "$@" "$1" shift ;; *) set x "$@" "$1" shift ;; esac fi shift done if test -z "$ofile" || test -z "$cfile"; then # If no '-o' option was seen then we might have been invoked from a # pattern rule where we don't need one. That is ok -- this is a # normal compilation that the losing compiler can handle. If no # '.c' file was seen then we are probably linking. That is also # ok. exec "$@" fi # Name of file we expect compiler to create. cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'` # Create the lock directory. # Note: use '[/\\:.-]' here to ensure that we don't use the same name # that we are using for the .o file. Also, base the name on the expected # object file name, since that is what matters with a parallel build. lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d while true; do if mkdir "$lockdir" >/dev/null 2>&1; then break fi sleep 1 done # FIXME: race condition here if user kills between mkdir and trap. trap "rmdir '$lockdir'; exit 1" 1 2 15 # Run the compile. "$@" ret=$? if test -f "$cofile"; then test "$cofile" = "$ofile" || mv "$cofile" "$ofile" elif test -f "${cofile}bj"; then test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile" fi rmdir "$lockdir" exit $ret # Local Variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'before-save-hook 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-time-zone: "UTC0" # time-stamp-end: "; # UTC" # End: rinetd-0.73/.auto/depcomp0000755060175106010010000005602014011724777015113 0ustar00samNone00000000000000#! /bin/sh # depcomp - compile a program generating dependencies as side-effects scriptversion=2018-03-07.03; # UTC # Copyright (C) 1999-2018 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, see . # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # Originally written by Alexandre Oliva . case $1 in '') echo "$0: No command. Try '$0 --help' for more information." 1>&2 exit 1; ;; -h | --h*) cat <<\EOF Usage: depcomp [--help] [--version] PROGRAM [ARGS] Run PROGRAMS ARGS to compile a file, generating dependencies as side-effects. Environment variables: depmode Dependency tracking mode. source Source file read by 'PROGRAMS ARGS'. object Object file output by 'PROGRAMS ARGS'. DEPDIR directory where to store dependencies. depfile Dependency file to output. tmpdepfile Temporary file to use when outputting dependencies. libtool Whether libtool is used (yes/no). Report bugs to . EOF exit $? ;; -v | --v*) echo "depcomp $scriptversion" exit $? ;; esac # Get the directory component of the given path, and save it in the # global variables '$dir'. Note that this directory component will # be either empty or ending with a '/' character. This is deliberate. set_dir_from () { case $1 in */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;; *) dir=;; esac } # Get the suffix-stripped basename of the given path, and save it the # global variable '$base'. set_base_from () { base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'` } # If no dependency file was actually created by the compiler invocation, # we still have to create a dummy depfile, to avoid errors with the # Makefile "include basename.Plo" scheme. make_dummy_depfile () { echo "#dummy" > "$depfile" } # Factor out some common post-processing of the generated depfile. # Requires the auxiliary global variable '$tmpdepfile' to be set. aix_post_process_depfile () { # If the compiler actually managed to produce a dependency file, # post-process it. if test -f "$tmpdepfile"; then # Each line is of the form 'foo.o: dependency.h'. # Do two passes, one to just change these to # $object: dependency.h # and one to simply output # dependency.h: # which is needed to avoid the deleted-header problem. { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile" sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile" } > "$depfile" rm -f "$tmpdepfile" else make_dummy_depfile fi } # A tabulation character. tab=' ' # A newline character. nl=' ' # Character ranges might be problematic outside the C locale. # These definitions help. upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ lower=abcdefghijklmnopqrstuvwxyz digits=0123456789 alpha=${upper}${lower} if test -z "$depmode" || test -z "$source" || test -z "$object"; then echo "depcomp: Variables source, object and depmode must be set" 1>&2 exit 1 fi # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. depfile=${depfile-`echo "$object" | sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} rm -f "$tmpdepfile" # Avoid interferences from the environment. gccflag= dashmflag= # Some modes work just like other modes, but use different flags. We # parameterize here, but still list the modes in the big case below, # to make depend.m4 easier to write. Note that we *cannot* use a case # here, because this file can only contain one case statement. if test "$depmode" = hp; then # HP compiler uses -M and no extra arg. gccflag=-M depmode=gcc fi if test "$depmode" = dashXmstdout; then # This is just like dashmstdout with a different argument. dashmflag=-xM depmode=dashmstdout fi cygpath_u="cygpath -u -f -" if test "$depmode" = msvcmsys; then # This is just like msvisualcpp but w/o cygpath translation. # Just convert the backslash-escaped backslashes to single forward # slashes to satisfy depend.m4 cygpath_u='sed s,\\\\,/,g' depmode=msvisualcpp fi if test "$depmode" = msvc7msys; then # This is just like msvc7 but w/o cygpath translation. # Just convert the backslash-escaped backslashes to single forward # slashes to satisfy depend.m4 cygpath_u='sed s,\\\\,/,g' depmode=msvc7 fi if test "$depmode" = xlc; then # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information. gccflag=-qmakedep=gcc,-MF depmode=gcc fi case "$depmode" in gcc3) ## gcc 3 implements dependency tracking that does exactly what ## we want. Yay! Note: for some reason libtool 1.4 doesn't like ## it if -MD -MP comes after the -MF stuff. Hmm. ## Unfortunately, FreeBSD c89 acceptance of flags depends upon ## the command line argument order; so add the flags where they ## appear in depend2.am. Note that the slowdown incurred here ## affects only configure: in makefiles, %FASTDEP% shortcuts this. for arg do case $arg in -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;; *) set fnord "$@" "$arg" ;; esac shift # fnord shift # $arg done "$@" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi mv "$tmpdepfile" "$depfile" ;; gcc) ## Note that this doesn't just cater to obsosete pre-3.x GCC compilers. ## but also to in-use compilers like IMB xlc/xlC and the HP C compiler. ## (see the conditional assignment to $gccflag above). ## There are various ways to get dependency output from gcc. Here's ## why we pick this rather obscure method: ## - Don't want to use -MD because we'd like the dependencies to end ## up in a subdir. Having to rename by hand is ugly. ## (We might end up doing this anyway to support other compilers.) ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like ## -MM, not -M (despite what the docs say). Also, it might not be ## supported by the other compilers which use the 'gcc' depmode. ## - Using -M directly means running the compiler twice (even worse ## than renaming). if test -z "$gccflag"; then gccflag=-MD, fi "$@" -Wp,"$gccflag$tmpdepfile" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" echo "$object : \\" > "$depfile" # The second -e expression handles DOS-style file names with drive # letters. sed -e 's/^[^:]*: / /' \ -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" ## This next piece of magic avoids the "deleted header file" problem. ## The problem is that when a header file which appears in a .P file ## is deleted, the dependency causes make to die (because there is ## typically no way to rebuild the header). We avoid this by adding ## dummy dependencies for each header file. Too bad gcc doesn't do ## this for us directly. ## Some versions of gcc put a space before the ':'. On the theory ## that the space means something, we add a space to the output as ## well. hp depmode also adds that space, but also prefixes the VPATH ## to the object. Take care to not repeat it in the output. ## Some versions of the HPUX 10.20 sed can't process this invocation ## correctly. Breaking it into two sed invocations is a workaround. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \ | sed -e 's/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; hp) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. This case will never be run, # since it is checked for above. exit 1 ;; sgi) if test "$libtool" = yes; then "$@" "-Wp,-MDupdate,$tmpdepfile" else "$@" -MDupdate "$tmpdepfile" fi stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files echo "$object : \\" > "$depfile" # Clip off the initial element (the dependent). Don't try to be # clever and replace this with sed code, as IRIX sed won't handle # lines with more than a fixed number of characters (4096 in # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; # the IRIX cc adds comments like '#:fec' to the end of the # dependency line. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \ | tr "$nl" ' ' >> "$depfile" echo >> "$depfile" # The second pass generates a dummy entry for each header file. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ >> "$depfile" else make_dummy_depfile fi rm -f "$tmpdepfile" ;; xlc) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. This case will never be run, # since it is checked for above. exit 1 ;; aix) # The C for AIX Compiler uses -M and outputs the dependencies # in a .u file. In older versions, this file always lives in the # current directory. Also, the AIX compiler puts '$object:' at the # start of each line; $object doesn't have directory information. # Version 6 uses the directory in both cases. set_dir_from "$object" set_base_from "$object" if test "$libtool" = yes; then tmpdepfile1=$dir$base.u tmpdepfile2=$base.u tmpdepfile3=$dir.libs/$base.u "$@" -Wc,-M else tmpdepfile1=$dir$base.u tmpdepfile2=$dir$base.u tmpdepfile3=$dir$base.u "$@" -M fi stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" exit $stat fi for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" do test -f "$tmpdepfile" && break done aix_post_process_depfile ;; tcc) # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26 # FIXME: That version still under development at the moment of writing. # Make that this statement remains true also for stable, released # versions. # It will wrap lines (doesn't matter whether long or short) with a # trailing '\', as in: # # foo.o : \ # foo.c \ # foo.h \ # # It will put a trailing '\' even on the last line, and will use leading # spaces rather than leading tabs (at least since its commit 0394caf7 # "Emit spaces for -MD"). "$@" -MD -MF "$tmpdepfile" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'. # We have to change lines of the first kind to '$object: \'. sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile" # And for each line of the second kind, we have to emit a 'dep.h:' # dummy dependency, to avoid the deleted-header problem. sed -n -e 's|^ *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile" rm -f "$tmpdepfile" ;; ## The order of this option in the case statement is important, since the ## shell code in configure will try each of these formats in the order ## listed in this file. A plain '-MD' option would be understood by many ## compilers, so we must ensure this comes after the gcc and icc options. pgcc) # Portland's C compiler understands '-MD'. # Will always output deps to 'file.d' where file is the root name of the # source file under compilation, even if file resides in a subdirectory. # The object file name does not affect the name of the '.d' file. # pgcc 10.2 will output # foo.o: sub/foo.c sub/foo.h # and will wrap long lines using '\' : # foo.o: sub/foo.c ... \ # sub/foo.h ... \ # ... set_dir_from "$object" # Use the source, not the object, to determine the base name, since # that's sadly what pgcc will do too. set_base_from "$source" tmpdepfile=$base.d # For projects that build the same source file twice into different object # files, the pgcc approach of using the *source* file root name can cause # problems in parallel builds. Use a locking strategy to avoid stomping on # the same $tmpdepfile. lockdir=$base.d-lock trap " echo '$0: caught signal, cleaning up...' >&2 rmdir '$lockdir' exit 1 " 1 2 13 15 numtries=100 i=$numtries while test $i -gt 0; do # mkdir is a portable test-and-set. if mkdir "$lockdir" 2>/dev/null; then # This process acquired the lock. "$@" -MD stat=$? # Release the lock. rmdir "$lockdir" break else # If the lock is being held by a different process, wait # until the winning process is done or we timeout. while test -d "$lockdir" && test $i -gt 0; do sleep 1 i=`expr $i - 1` done fi i=`expr $i - 1` done trap - 1 2 13 15 if test $i -le 0; then echo "$0: failed to acquire lock after $numtries attempts" >&2 echo "$0: check lockdir '$lockdir'" >&2 exit 1 fi if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" # Each line is of the form `foo.o: dependent.h', # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. # Do two passes, one to just change these to # `$object: dependent.h' and one to simply `dependent.h:'. sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" # Some versions of the HPUX 10.20 sed can't process this invocation # correctly. Breaking it into two sed invocations is a workaround. sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \ | sed -e 's/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; hp2) # The "hp" stanza above does not work with aCC (C++) and HP's ia64 # compilers, which have integrated preprocessors. The correct option # to use with these is +Maked; it writes dependencies to a file named # 'foo.d', which lands next to the object file, wherever that # happens to be. # Much of this is similar to the tru64 case; see comments there. set_dir_from "$object" set_base_from "$object" if test "$libtool" = yes; then tmpdepfile1=$dir$base.d tmpdepfile2=$dir.libs/$base.d "$@" -Wc,+Maked else tmpdepfile1=$dir$base.d tmpdepfile2=$dir$base.d "$@" +Maked fi stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile1" "$tmpdepfile2" exit $stat fi for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" do test -f "$tmpdepfile" && break done if test -f "$tmpdepfile"; then sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile" # Add 'dependent.h:' lines. sed -ne '2,${ s/^ *// s/ \\*$// s/$/:/ p }' "$tmpdepfile" >> "$depfile" else make_dummy_depfile fi rm -f "$tmpdepfile" "$tmpdepfile2" ;; tru64) # The Tru64 compiler uses -MD to generate dependencies as a side # effect. 'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'. # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put # dependencies in 'foo.d' instead, so we check for that too. # Subdirectories are respected. set_dir_from "$object" set_base_from "$object" if test "$libtool" = yes; then # Libtool generates 2 separate objects for the 2 libraries. These # two compilations output dependencies in $dir.libs/$base.o.d and # in $dir$base.o.d. We have to check for both files, because # one of the two compilations can be disabled. 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Thanks to Sam Hocevar. ## Version 0.61 fixed a bug in 0.6 which completely broke rinetd under Linux. Oops. ## Version 0.6 ported to Win32. Various compatibility fixes were made and some minor oversights without functional consequences were corrected. ## Version 0.52 documentation added regarding the ability to bind to all IP addresses, if desired, using the special address 0.0.0.0. ## Version 0.51 fixed failure to check for an open log file before writing log entries. ## Version 0.5 added logging in both tab-delimited and web-server-style formats. No longer exits if an individual configuration file line generates an error. Added allow and deny rules. Added -c command line option to specify a configuration file. ## Version 0.4 added support for kill -1 (SIGHUP) and specification of service names instead of port numbers. Removed calls to realloc(), replacing them with code that should fail gracefully without crashing the program or breaking existing connections when another application is hogging memory. ## Version 0.3 fixed additional bugs relating to the code previously used only by non-Linux OSes. This should fix problems such as connections not going away when they should or connections being mysteriously closed. Most of that code is now used by Linux also, so it is likely that rinetd is much closer to bug-free on non-Linux platforms. Of course, I don't actually have any to play with it on. ## Version 0.2 fixed bug when several reads are necessary on one end or the other before a write flushes them. Fixed bug which threw away data not yet sent to the other side on close, when running under Linux. Fixed associated bugs that probably affected other operating systems as well. 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AC_FUNC_FORK #XXX: disabled because of cross-compilation issues #AC_FUNC_MALLOC AC_TYPE_SIGNAL AC_FUNC_STRFTIME AC_CHECK_FUNCS([gethostbyname memset select socket strstr daemon fork sigaction]) AC_CONFIG_FILES([Makefile]) AC_CONFIG_FILES([src/Makefile]) AC_OUTPUT rinetd-0.73/COPYING0000644060175106010010000004377714011726673013557 0ustar00samNone00000000000000 GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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. 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NAME

rinetd - internet redirection server

SYNOPSIS

rinetd [-f] [-c configuration]

rinetd -h

rinetd -v

DESCRIPTION

rinetd redirects TCP or UDP connections from one IP address and port to another. rinetd is a single-process server which handles any number of connections to the address/port pairs specified in the file /etc/rinetd.conf. Since rinetd runs as a single process using nonblocking I/O, it is able to redirect a large number of connections without a severe impact on the machine. This makes it practical to run services on machines inside an IP masquerading firewall.

rinetd is typically launched at boot time, using the following syntax:

/usr/sbin/rinetd

The configuration file is found in the file /etc/rinetd.conf, unless another file is specified using the -c command line option.

OPTIONS

-f Run rinetd in the foreground, without forking to the background.

-c configuration Specify an alternate configuration file.

-v Display the version number and exit.

-h Produce a short help message and exit.

FORWARDING RULES

Most entries in the configuration file are forwarding rules. The format of a forwarding rule is as follows:

bindaddress bindport connectaddress connectport [options...]

For example:

206.125.69.81 80 10.1.1.2 80

Would redirect all connections to port 80 of the "real" IP address 206.125.69.81, which could be a virtual interface, through rinetd to port 80 of the address 10.1.1.2, which would typically be a machine on the inside of a firewall which has no direct routing to the outside world.

is one of rinetd's primary features, sometimes it is preferable to respond on all IP addresses that belong to the server. In this situation, the special IP address 0.0.0.0 can be used. For example:

0.0.0.0 23 10.1.1.2 23

Would redirect all connections to port 23, for all IP addresses assigned to the server. This is the default behavior for most other programs.

Ports default to TCP. To specify the protocol, append /udp or /tcp to the port number:

206.125.69.81 80/tcp 10.1.1.2 8000/udp

Service names can be specified instead of port numbers. On most systems, service names are defined in the file /etc/services.

Both IP addresses and hostnames are accepted for bindaddress and connectaddress, including IPv6.

UDP timeout option

Since UDP is a connectionless protocol, a timeout is necessary or forwarding connections may accumulate with time and exhaust resources. By default, if no data is sent or received on a UDP connection for 72 seconds, the other connection is closed. This value can be changed using the timeout option:

0.0.0.0 8000/udp 10.1.1.2 80 [timeout=3600]

This rule will forward all data received on UDP port 8000 to host 10.1.1.2 on TCP port 80, and will close the connection after no data is received on the UDP port for 3600 seconds.

Source address option

A forwarding rule option allows to bind to a specific local address when sending data to the other end. This is done using the src option:

192.168.1.1 80 10.1.1.127 80 [src=10.1.1.2]

Assuming the local host has two IP addresses, 10.1.1.1 and 10.1.1.2, this rule ensures that forwarded packets are sent using source address 10.1.1.2.

ALLOW AND DENY RULES

Configuration files can also contain allow and deny rules.

Allow rules which appear before the first forwarding rule are applied globally: if at least one global allow rule exists, and the address of a new connection does not satisfy at least one of the global allow rules, that connection is immediately rejected, regardless of any other rules.

Allow rules which appear after a specific forwarding rule apply to that forwarding rule only. If at least one allow rule exists for a particular forwarding rule, and the address of a new connection does not satisfy at least one of the allow rules for that forwarding rule, that connection is immediately rejected, regardless of any other rules.

Deny rules which appear before the first forwarding rule are applied globally: if the address of a new connection satisfies any of the global deny rules, that connection is immediately rejected, regardless of any other rules.

Deny rules which appear after a specific forwarding rule apply to that forwarding rule only. If the address of a new connection satisfies any of the deny rules for that forwarding rule, that connection is immediately rejected, regardless of any other rules.

The format of an allow rule is as follows:

allow|deny pattern

Patterns can contain the following characters: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, . (period), ?, and *. The ? wildcard matches any one character. The * wildcard matches any number of characters, including zero.

For example:

allow 206.125.69.*

This allow rule matches all IP addresses in the 206.125.69 class C domain.

Host names are NOT permitted in allow and deny rules. The performance cost of looking up IP addresses to find their corresponding names is prohibitive. Since rinetd is a single process server, all other connections would be forced to pause during the address lookup.

LOGGING

rinetd is able to produce a log file in either of two formats: tab-delimited and web server-style "common log format".

By default, rinetd does not produce a log file. To activate logging, add the following line to the configuration file:

logfile log-file-location

Example:

logfile /var/log/rinetd.log

By default, rinetd logs in a simple tab-delimited format containing the following information:

  Date and time

  Client address

  Listening host

  Listening port

  Forwarded-to host

  Forwarded-to port

  Bytes received from client

  Bytes sent to client

  Result message

To activate web server-style "common log format" logging, add the following line to the configuration file:

logcommon

REINITIALIZING RINETD

The kill -1 signal (SIGHUP) can be used to cause rinetd to reload its configuration file without interrupting existing connections.

Under Linux(tm the process id is saved in the file /var/run/rinetd.pid to facilitate the kill -HUP. An alternate filename can be provided by using the pidlogfile configuration file option.

BUGS AND LIMITATIONS

rinetd only redirects protocols which use a single TCP or UDP socket. This rules out FTP.

The server redirected to is not able to identify the host the client really came from. This cannot be corrected; however, the log produced by rinetd provides a way to obtain this information. Under Unix, Sockets would theoretically lose data when closed with SO_LINGER turned off, but in Linux this is not the case (kernel source comments support this belief on my part). On non-Linux Unix platforms, alternate code which uses a different trick to work around blocking close() is provided, but this code is untested.

The logging is inadequate. The duration of each connection should be logged.

LICENSE

Copyright (c) 1997, 1998, 1999, Thomas Boutell and Boutell.Com, Inc.

Copyright (c) 2003-2021 Sam Hocevar

This software is released for free use under the terms of the GNU General Public License, version 2 or higher. NO WARRANTY IS EXPRESSED OR IMPLIED. USE THIS SOFTWARE AT YOUR OWN RISK.

CONTACT INFORMATION

See https://github.com/samhocevar/rinetd/releases for the latest release.

Thomas Boutell can be reached by email: boutell@boutell.com

Sam Hocevar can be reached by email: sam@hocevar.net

THANKS

Thanks are due to Bill Davidsen, Libor Pechachek, Sascha Ziemann, the Apache Group, and many others who have contributed advice and/or source code to this and other free software projects.

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then roffit < $^ > $@; else touch $@; fi # This is for Travis CI; we don’t have a testsuite yet. test: # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: rinetd-0.73/README.md0000644060175106010010000000116414011724751013756 0ustar00samNone00000000000000rinetd, by Thomas Boutell and Sam Hocevar. Released under the terms of the GNU General Public License, version 2 or later. This program is used to efficiently redirect connections from one IP address/port combination to another. It is useful when operating virtual servers, firewalls and the like. To build under Unix, run `./bootstrap` to create the configuration files, then `./configure` to create the build files, and then type `make` to build rinetd. To install, type `make install` as root. For documentation run `make install`, then type `man rinetd` for details. Or, read `index.html` in your browser. rinetd-0.73/rinetd.80000644060175106010010000002055114013676546014070 0ustar00samNone00000000000000.TH rinetd 8 "2021-02-19" "rinetd 0.73" .SH NAME rinetd \- internet redirection server .SH SYNOPSIS \fBrinetd\fR [\fB\-f\fR] [\fB\-c\fR \fIconfiguration\fR] .br \fBrinetd \-h\fR .br \fBrinetd \-v\fR .SH DESCRIPTION .PP \fBrinetd\fR redirects TCP or UDP connections from one IP address and port to another. \fBrinetd\fR is a single-process server which handles any number of connections to the address/port pairs specified in the file \fI/etc/rinetd.conf\fR. Since \fBrinetd\fR runs as a single process using nonblocking I/O, it is able to redirect a large number of connections without a severe impact on the machine. This makes it practical to run services on machines inside an IP masquerading firewall. .PP \fBrinetd\fR is typically launched at boot time, using the following syntax: .PP \fB /usr/sbin/rinetd\fR .PP The configuration file is found in the file \fI/etc/rinetd.conf\fR, unless another file is specified using the \fB\-c\fR command line option. .SH OPTIONS .TP \fB\-f\fR Run \fBrinetd\fR in the foreground, without forking to the background. .TP \fB\-c\fR \fIconfiguration\fR Specify an alternate configuration file. .TP \fB\-v\fR Display the version number and exit. .TP \fB\-h\fR Produce a short help message and exit. .SH FORWARDING RULES .PP Most entries in the configuration file are forwarding rules. The format of a forwarding rule is as follows: .PP \fB bindaddress bindport connectaddress connectport [options...]\fR .PP For example: .PP \fB 206.125.69.81 80 10.1.1.2 80\fR .PP Would redirect all connections to port 80 of the "real" IP address 206.125.69.81, which could be a virtual interface, through \fBrinetd\fR to port 80 of the address 10.1.1.2, which would typically be a machine on the inside of a firewall which has no direct routing to the outside world. .PP Although responding on individual interfaces rather than on all interfaces is one of \fBrinetd\fR's primary features, sometimes it is preferable to respond on all IP addresses that belong to the server. In this situation, the special IP address 0.0.0.0 can be used. For example: .PP \fB 0.0.0.0 23 10.1.1.2 23\fR .PP Would redirect all connections to port 23, for all IP addresses assigned to the server. This is the default behavior for most other programs. .PP Ports default to TCP. To specify the protocol, append \fI/udp\fR or \fI/tcp\fR to the port number: .PP \fB 206.125.69.81 80/tcp 10.1.1.2 8000/udp\fR .PP Service names can be specified instead of port numbers. On most systems, service names are defined in the file \fI/etc/services\fR. .PP Both IP addresses and hostnames are accepted for bindaddress and connectaddress, including IPv6. .PP .SS UDP timeout option Since UDP is a connectionless protocol, a timeout is necessary or forwarding connections may accumulate with time and exhaust resources. By default, if no data is sent or received on a UDP connection for 72 seconds, the other connection is closed. This value can be changed using the \fItimeout\fR option: .PP \fB 0.0.0.0 8000/udp 10.1.1.2 80 [timeout=3600]\fR .PP This rule will forward all data received on UDP port 8000 to host 10.1.1.2 on TCP port 80, and will close the connection after no data is received on the UDP port for 3600 seconds. .SS Source address option A forwarding rule option allows to bind to a specific local address when sending data to the other end. This is done using the \fIsrc\fR option: .PP \fB 192.168.1.1 80 10.1.1.127 80 [src=10.1.1.2]\fR .PP Assuming the local host has two IP addresses, 10.1.1.1 and 10.1.1.2, this rule ensures that forwarded packets are sent using source address 10.1.1.2. .SH ALLOW AND DENY RULES Configuration files can also contain allow and deny rules. .PP Allow rules which appear before the first forwarding rule are applied globally: if at least one global allow rule exists, and the address of a new connection does not satisfy at least one of the global allow rules, that connection is immediately rejected, regardless of any other rules. .PP Allow rules which appear after a specific forwarding rule apply to that forwarding rule only. If at least one allow rule exists for a particular forwarding rule, and the address of a new connection does not satisfy at least one of the allow rules for that forwarding rule, that connection is immediately rejected, regardless of any other rules. .PP Deny rules which appear before the first forwarding rule are applied globally: if the address of a new connection satisfies any of the global deny rules, that connection is immediately rejected, regardless of any other rules. .PP Deny rules which appear after a specific forwarding rule apply to that forwarding rule only. If the address of a new connection satisfies any of the deny rules for that forwarding rule, that connection is immediately rejected, regardless of any other rules. .PP The format of an allow rule is as follows: .PP \fB allow|deny pattern\fR .PP Patterns can contain the following characters: \fB0\fR, \fB1\fR, \fB2\fR, \fB3\fR, \fB4\fR, \fB5\fR, \fB6\fR, \fB7\fR, \fB8\fR, \fB9\fR, \fB.\fR (period), \fB?\fR, and \fB*\fR. The \fB?\fR wildcard matches any one character. The \fB*\fR wildcard matches any number of characters, including zero. .PP For example: .PP \fB allow 206.125.69.*\fR .PP This allow rule matches all IP addresses in the 206.125.69 class C domain. .PP Host names are NOT permitted in allow and deny rules. The performance cost of looking up IP addresses to find their corresponding names is prohibitive. Since \fBrinetd\fR is a single process server, all other connections would be forced to pause during the address lookup. .SH LOGGING \fBrinetd\fR is able to produce a log file in either of two formats: tab-delimited and web server-style "common log format". .PP By default, \fBrinetd\fR does not produce a log file. To activate logging, add the following line to the configuration file: .PP \fB logfile log-file-location\fR .PP Example: .PP \fB logfile /var/log/rinetd.log\fR .PP By default, \fBrinetd\fR logs in a simple tab-delimited format containing the following information: .PP Date and time .PP Client address .PP Listening host .PP Listening port .PP Forwarded-to host .PP Forwarded-to port .PP Bytes received from client .PP Bytes sent to client .PP Result message .PP To activate web server-style "common log format" logging, add the following line to the configuration file: .PP \fB logcommon\fR .SH REINITIALIZING RINETD .PP The \fBkill -1\fR signal (\fISIGHUP\fR) can be used to cause \fBrinetd\fR to reload its configuration file without interrupting existing connections. .PP Under Linux\(tm the process id is saved in the file \fI/var/run/rinetd.pid\fR to facilitate the \fBkill -HUP\fR. An alternate filename can be provided by using the pidlogfile configuration file option. .SH BUGS AND LIMITATIONS .PP \fBrinetd\fR only redirects protocols which use a single TCP or UDP socket. This rules out FTP. .PP The server redirected to is not able to identify the host the client really came from. This cannot be corrected; however, the log produced by \fBrinetd\fR provides a way to obtain this information. Under Unix, Sockets would theoretically lose data when closed with SO_LINGER turned off, but in Linux this is not the case (kernel source comments support this belief on my part). On non-Linux Unix platforms, alternate code which uses a different trick to work around blocking close() is provided, but this code is untested. .PP The logging is inadequate. The duration of each connection should be logged. .SH LICENSE Copyright (c) 1997, 1998, 1999, Thomas Boutell and Boutell.Com, Inc. .PP Copyright (c) 2003\-2021 Sam Hocevar .PP This software is released for free use under the terms of the GNU General Public License, version 2 or higher. NO WARRANTY IS EXPRESSED OR IMPLIED. USE THIS SOFTWARE AT YOUR OWN RISK. .SH CONTACT INFORMATION See https://github.com/samhocevar/rinetd/releases for the latest release. .PP Thomas Boutell can be reached by email: boutell@boutell.com .PP Sam Hocevar can be reached by email: sam@hocevar.net .SH THANKS Thanks are due to Bill Davidsen, Libor Pechachek, Sascha Ziemann, the Apache Group, and many others who have contributed advice and/or source code to this and other free software projects. rinetd-0.73/rinetd.conf0000644060175106010010000000200614012700375014624 0ustar00samNone00000000000000# # this is the configuration file for rinetd, the internet redirection server # # you may specify global allow and deny rules here # only ip addresses are matched, hostnames cannot be specified here # the wildcards you may use are * and ? # # allow 192.168.2.* # deny 192.168.2.1? # allow fe80:* # deny 2001:618:*:e43f # # forwarding rules come here # # you may specify allow and deny rules after a specific forwarding rule # to apply to only that forwarding rule # # bindadress bindport connectaddress connectport options... # 0.0.0.0 80 192.168.1.2 80 # ::1 80 192.168.1.2 80 # 0.0.0.0 80 fe80::1 80 # 127.0.0.1 4000 127.0.0.1 3000 # 127.0.0.1 4000/udp 127.0.0.1 22 [timeout=1200] # 127.0.0.1 8000/udp 192.168.1.2 8000/udp [src=192.168.1.2,timeout=1200] # logging information logfile /var/log/rinetd.log # uncomment the following line if you want web-server style logfile format # logcommon rinetd-0.73/rinetd.vcxproj0000644060175106010010000001115614013676546015415 0ustar00samNone00000000000000 Debug Win32 Release Win32 Debug x64 Release x64 15.0 {3F1D9D58-3205-48E9-9C93-557291A45D74} Win32Proj rinetd 10.0 Application v142 Unicode true false true true false NotUsing Level3 true CompileAsC true _CONSOLE;PACKAGE_VERSION="0.73";_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;_WINSOCK_DEPRECATED_NO_WARNINGS;%(PreprocessorDefinitions) Console ws2_32.lib;%(AdditionalDependencies) true Disabled _DEBUG;%(PreprocessorDefinitions) MaxSpeed NDEBUG;%(PreprocessorDefinitions) true true true true rinetd-0.73/src/0000755060175106010010000000000014013677662013276 5ustar00samNone00000000000000rinetd-0.73/src/config.h.in0000774060175106010010000000715514013676733015333 0ustar00samNone00000000000000/* src/config.h.in. Generated from configure.ac by autoheader. */ /* Define to 1 if you have the header file. */ #undef HAVE_ARPA_INET_H /* Define to 1 if you have the `daemon' function. */ #undef HAVE_DAEMON /* Define to 1 if you have the header file. */ #undef HAVE_ERRNO_H /* Define to 1 if you have the header file. */ #undef HAVE_FCNTL_H /* Define to 1 if you have the `fork' function. */ #undef HAVE_FORK /* Define to 1 if you have the `gethostbyname' function. */ #undef HAVE_GETHOSTBYNAME /* Define to 1 if you have the header file. */ #undef HAVE_INTTYPES_H /* Define to 1 if you have the header file. */ #undef HAVE_MEMORY_H /* Define to 1 if you have the `memset' function. */ #undef HAVE_MEMSET /* Define to 1 if you have the header file. */ #undef HAVE_NETDB_H /* Define to 1 if you have the header file. */ #undef HAVE_NETINET_IN_H /* Define to 1 if you have the `select' function. */ #undef HAVE_SELECT /* Define to 1 if you have the `sigaction' function. */ #undef HAVE_SIGACTION /* Define to 1 if you have the `socket' function. */ #undef HAVE_SOCKET /* Define to 1 if the system has the type `socklen_t'. */ #undef HAVE_SOCKLEN_T /* Define to 1 if the system has the type `ssize_t'. */ #undef HAVE_SSIZE_T /* Define to 1 if you have the header file. */ #undef HAVE_STDINT_H /* Define to 1 if you have the header file. */ #undef HAVE_STDLIB_H /* Define to 1 if you have the `strftime' function. */ #undef HAVE_STRFTIME /* Define to 1 if you have the header file. */ #undef HAVE_STRINGS_H /* Define to 1 if you have the header file. */ #undef HAVE_STRING_H /* Define to 1 if you have the `strstr' function. */ #undef HAVE_STRSTR /* Define to 1 if you have the header file. */ #undef HAVE_SYSLOG_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_IOCTL_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_SOCKET_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_STAT_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_TIME_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_TYPES_H /* Define to 1 if you have the header file. */ #undef HAVE_UNISTD_H /* Define to 1 if you have the `vfork' function. */ #undef HAVE_VFORK /* Define to 1 if you have the header file. */ #undef HAVE_VFORK_H /* Define to 1 if `fork' works. */ #undef HAVE_WORKING_FORK /* Define to 1 if `vfork' works. */ #undef HAVE_WORKING_VFORK /* Define to the address where bug reports for this package should be sent. */ #undef PACKAGE_BUGREPORT /* Define to the full name of this package. */ #undef PACKAGE_NAME /* Define to the full name and version of this package. */ #undef PACKAGE_STRING /* Define to the one symbol short name of this package. */ #undef PACKAGE_TARNAME /* Define to the home page for this package. */ #undef PACKAGE_URL /* Define to the version of this package. */ #undef PACKAGE_VERSION /* Define as the return type of signal handlers (`int' or `void'). */ #undef RETSIGTYPE /* Define to 1 if you have the ANSI C header files. */ #undef STDC_HEADERS /* Define to 1 if you can safely include both and . */ #undef TIME_WITH_SYS_TIME /* Define to 1 if your declares `struct tm'. */ #undef TM_IN_SYS_TIME /* Define to empty if `const' does not conform to ANSI C. */ #undef const /* Define to `int' if does not define. */ #undef pid_t /* Define as `fork' if `vfork' does not work. */ #undef vfork rinetd-0.73/src/getopt.c0000644060175106010010000005346014011724751014742 0ustar00samNone00000000000000/* THIS IS HERE FOR WIN32's BENEFIT ONLY. */ /* Getopt for GNU. NOTE: getopt is now part of the C library, so if you don't know what "Keep this file name-space clean" means, talk to roland@gnu.ai.mit.edu before changing it! Copyright (C) 1987, 88, 89, 90, 91, 92, 1993 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, 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #ifndef __STDC__ # ifndef const # define const # endif #endif /* This tells Alpha OSF/1 not to define a getopt prototype in . */ #ifndef _NO_PROTO #define _NO_PROTO #endif #include /* Comment out all this code if we are using the GNU C Library, and are not actually compiling the library itself. This code is part of the GNU C Library, but also included in many other GNU distributions. Compiling and linking in this code is a waste when using the GNU C library (especially if it is a shared library). Rather than having every GNU program understand `configure --with-gnu-libc' and omit the object files, it is simpler to just do this in the source for each such file. */ #if defined (_LIBC) || !defined (__GNU_LIBRARY__) /* This needs to come after some library #include to get __GNU_LIBRARY__ defined. */ #ifdef __GNU_LIBRARY__ /* Don't include stdlib.h for non-GNU C libraries because some of them contain conflicting prototypes for getopt. */ #include #endif /* GNU C library. */ /* If GETOPT_COMPAT is defined, `+' as well as `--' can introduce a long-named option. Because this is not POSIX.2 compliant, it is being phased out. */ /* #define GETOPT_COMPAT */ /* This version of `getopt' appears to the caller like standard Unix `getopt' but it behaves differently for the user, since it allows the user to intersperse the options with the other arguments. As `getopt' works, it permutes the elements of ARGV so that, when it is done, all the options precede everything else. Thus all application programs are extended to handle flexible argument order. Setting the environment variable POSIXLY_CORRECT disables permutation. Then the behavior is completely standard. GNU application programs can use a third alternative mode in which they can distinguish the relative order of options and other arguments. */ #include "getopt.h" /* For communication from `getopt' to the caller. When `getopt' finds an option that takes an argument, the argument value is returned here. Also, when `ordering' is RETURN_IN_ORDER, each non-option ARGV-element is returned here. */ char *optarg = 0; /* Index in ARGV of the next element to be scanned. This is used for communication to and from the caller and for communication between successive calls to `getopt'. On entry to `getopt', zero means this is the first call; initialize. When `getopt' returns EOF, this is the index of the first of the non-option elements that the caller should itself scan. Otherwise, `optind' communicates from one call to the next how much of ARGV has been scanned so far. */ /* XXX 1003.2 says this must be 1 before any call. */ int optind = 0; /* The next char to be scanned in the option-element in which the last option character we returned was found. This allows us to pick up the scan where we left off. If this is zero, or a null string, it means resume the scan by advancing to the next ARGV-element. */ static char *nextchar; /* Callers store zero here to inhibit the error message for unrecognized options. */ int opterr = 1; /* Set to an option character which was unrecognized. This must be initialized on some systems to avoid linking in the system's own getopt implementation. */ #define BAD_OPTION '\0' int optopt = BAD_OPTION; /* Describe how to deal with options that follow non-option ARGV-elements. If the caller did not specify anything, the default is REQUIRE_ORDER if the environment variable POSIXLY_CORRECT is defined, PERMUTE otherwise. REQUIRE_ORDER means don't recognize them as options; stop option processing when the first non-option is seen. This is what Unix does. This mode of operation is selected by either setting the environment variable POSIXLY_CORRECT, or using `+' as the first character of the list of option characters. PERMUTE is the default. We permute the contents of ARGV as we scan, so that eventually all the non-options are at the end. This allows options to be given in any order, even with programs that were not written to expect this. RETURN_IN_ORDER is an option available to programs that were written to expect options and other ARGV-elements in any order and that care about the ordering of the two. We describe each non-option ARGV-element as if it were the argument of an option with character code 1. Using `-' as the first character of the list of option characters selects this mode of operation. The special argument `--' forces an end of option-scanning regardless of the value of `ordering'. In the case of RETURN_IN_ORDER, only `--' can cause `getopt' to return EOF with `optind' != ARGC. */ static enum { REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER } ordering; #ifdef __GNU_LIBRARY__ /* We want to avoid inclusion of string.h with non-GNU libraries because there are many ways it can cause trouble. On some systems, it contains special magic macros that don't work in GCC. */ #include #define my_index strchr #define my_strlen strlen #else /* Avoid depending on library functions or files whose names are inconsistent. */ #if __STDC__ || defined(PROTO) extern char *getenv(const char *name); extern int strcmp (const char *s1, const char *s2); extern int strncmp(const char *s1, const char *s2, int n); static int my_strlen(const char *s); static char *my_index (const char *str, int chr); #else extern char *getenv (); #endif static int my_strlen (str) const char *str; { int n = 0; while (*str++) n++; return n; } static char * my_index (str, chr) const char *str; int chr; { while (*str) { if (*str == chr) return (char *) str; str++; } return 0; } #endif /* GNU C library. */ /* Handle permutation of arguments. */ /* Describe the part of ARGV that contains non-options that have been skipped. `first_nonopt' is the index in ARGV of the first of them; `last_nonopt' is the index after the last of them. */ static int first_nonopt; static int last_nonopt; /* Exchange two adjacent subsequences of ARGV. One subsequence is elements [first_nonopt,last_nonopt) which contains all the non-options that have been skipped so far. The other is elements [last_nonopt,optind), which contains all the options processed since those non-options were skipped. `first_nonopt' and `last_nonopt' are relocated so that they describe the new indices of the non-options in ARGV after they are moved. To perform the swap, we first reverse the order of all elements. So all options now come before all non options, but they are in the wrong order. So we put back the options and non options in original order by reversing them again. For example: original input: a b c -x -y reverse all: -y -x c b a reverse options: -x -y c b a reverse non options: -x -y a b c */ #if __STDC__ || defined(PROTO) static void exchange (char **argv); #endif static void exchange (argv) char **argv; { char *temp, **first, **last; /* Reverse all the elements [first_nonopt, optind) */ first = &argv[first_nonopt]; last = &argv[optind-1]; while (first < last) { temp = *first; *first = *last; *last = temp; first++; last--; } /* Put back the options in order */ first = &argv[first_nonopt]; first_nonopt += (optind - last_nonopt); last = &argv[first_nonopt - 1]; while (first < last) { temp = *first; *first = *last; *last = temp; first++; last--; } /* Put back the non options in order */ first = &argv[first_nonopt]; last_nonopt = optind; last = &argv[last_nonopt-1]; while (first < last) { temp = *first; *first = *last; *last = temp; first++; last--; } } /* Scan elements of ARGV (whose length is ARGC) for option characters given in OPTSTRING. If an element of ARGV starts with '-', and is not exactly "-" or "--", then it is an option element. The characters of this element (aside from the initial '-') are option characters. If `getopt' is called repeatedly, it returns successively each of the option characters from each of the option elements. If `getopt' finds another option character, it returns that character, updating `optind' and `nextchar' so that the next call to `getopt' can resume the scan with the following option character or ARGV-element. If there are no more option characters, `getopt' returns `EOF'. Then `optind' is the index in ARGV of the first ARGV-element that is not an option. (The ARGV-elements have been permuted so that those that are not options now come last.) OPTSTRING is a string containing the legitimate option characters. If an option character is seen that is not listed in OPTSTRING, return BAD_OPTION after printing an error message. If you set `opterr' to zero, the error message is suppressed but we still return BAD_OPTION. If a char in OPTSTRING is followed by a colon, that means it wants an arg, so the following text in the same ARGV-element, or the text of the following ARGV-element, is returned in `optarg'. Two colons mean an option that wants an optional arg; if there is text in the current ARGV-element, it is returned in `optarg', otherwise `optarg' is set to zero. If OPTSTRING starts with `-' or `+', it requests different methods of handling the non-option ARGV-elements. See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above. Long-named options begin with `--' instead of `-'. Their names may be abbreviated as long as the abbreviation is unique or is an exact match for some defined option. If they have an argument, it follows the option name in the same ARGV-element, separated from the option name by a `=', or else the in next ARGV-element. When `getopt' finds a long-named option, it returns 0 if that option's `flag' field is nonzero, the value of the option's `val' field if the `flag' field is zero. The elements of ARGV aren't really const, because we permute them. But we pretend they're const in the prototype to be compatible with other systems. LONGOPTS is a vector of `struct option' terminated by an element containing a name which is zero. LONGIND returns the index in LONGOPT of the long-named option found. It is only valid when a long-named option has been found by the most recent call. If LONG_ONLY is nonzero, '-' as well as '--' can introduce long-named options. */ int _getopt_internal (argc, argv, optstring, longopts, longind, long_only) int argc; char *const *argv; const char *optstring; const struct option *longopts; int *longind; int long_only; { int option_index; optarg = 0; /* Initialize the internal data when the first call is made. Start processing options with ARGV-element 1 (since ARGV-element 0 is the program name); the sequence of previously skipped non-option ARGV-elements is empty. */ if (optind == 0) { first_nonopt = last_nonopt = optind = 1; nextchar = NULL; /* Determine how to handle the ordering of options and nonoptions. */ if (optstring[0] == '-') { ordering = RETURN_IN_ORDER; ++optstring; } else if (optstring[0] == '+') { ordering = REQUIRE_ORDER; ++optstring; } else if (getenv ("POSIXLY_CORRECT") != NULL) ordering = REQUIRE_ORDER; else ordering = PERMUTE; } if (nextchar == NULL || *nextchar == '\0') { if (ordering == PERMUTE) { /* If we have just processed some options following some non-options, exchange them so that the options come first. */ if (first_nonopt != last_nonopt && last_nonopt != optind) exchange ((char **) argv); else if (last_nonopt != optind) first_nonopt = optind; /* Now skip any additional non-options and extend the range of non-options previously skipped. */ while (optind < argc && (argv[optind][0] != '-' || argv[optind][1] == '\0') #ifdef GETOPT_COMPAT && (longopts == NULL || argv[optind][0] != '+' || argv[optind][1] == '\0') #endif /* GETOPT_COMPAT */ ) optind++; last_nonopt = optind; } /* Special ARGV-element `--' means premature end of options. Skip it like a null option, then exchange with previous non-options as if it were an option, then skip everything else like a non-option. */ if (optind != argc && !strcmp (argv[optind], "--")) { optind++; if (first_nonopt != last_nonopt && last_nonopt != optind) exchange ((char **) argv); else if (first_nonopt == last_nonopt) first_nonopt = optind; last_nonopt = argc; optind = argc; } /* If we have done all the ARGV-elements, stop the scan and back over any non-options that we skipped and permuted. */ if (optind == argc) { /* Set the next-arg-index to point at the non-options that we previously skipped, so the caller will digest them. */ if (first_nonopt != last_nonopt) optind = first_nonopt; return EOF; } /* If we have come to a non-option and did not permute it, either stop the scan or describe it to the caller and pass it by. */ if ((argv[optind][0] != '-' || argv[optind][1] == '\0') #ifdef GETOPT_COMPAT && (longopts == NULL || argv[optind][0] != '+' || argv[optind][1] == '\0') #endif /* GETOPT_COMPAT */ ) { if (ordering == REQUIRE_ORDER) return EOF; optarg = argv[optind++]; return 1; } /* We have found another option-ARGV-element. Start decoding its characters. */ nextchar = (argv[optind] + 1 + (longopts != NULL && argv[optind][1] == '-')); } if (longopts != NULL && ((argv[optind][0] == '-' && (argv[optind][1] == '-' || long_only)) #ifdef GETOPT_COMPAT || argv[optind][0] == '+' #endif /* GETOPT_COMPAT */ )) { const struct option *p; char *s = nextchar; int exact = 0; int ambig = 0; const struct option *pfound = NULL; int indfound = 0; while (*s && *s != '=') s++; /* Test all options for either exact match or abbreviated matches. */ for (p = longopts, option_index = 0; p->name; p++, option_index++) if (!strncmp (p->name, nextchar, s - nextchar)) { if (s - nextchar == my_strlen (p->name)) { /* Exact match found. */ pfound = p; indfound = option_index; exact = 1; break; } else if (pfound == NULL) { /* First nonexact match found. */ pfound = p; indfound = option_index; } else /* Second nonexact match found. */ ambig = 1; } if (ambig && !exact) { if (opterr) fprintf (stderr, "%s: option `%s' is ambiguous\n", argv[0], argv[optind]); nextchar += my_strlen (nextchar); optind++; return BAD_OPTION; } if (pfound != NULL) { option_index = indfound; optind++; if (*s) { /* Don't test has_arg with >, because some C compilers don't allow it to be used on enums. */ if (pfound->has_arg) optarg = s + 1; else { if (opterr) { if (argv[optind - 1][1] == '-') /* --option */ fprintf (stderr, "%s: option `--%s' doesn't allow an argument\n", argv[0], pfound->name); else /* +option or -option */ fprintf (stderr, "%s: option `%c%s' doesn't allow an argument\n", argv[0], argv[optind - 1][0], pfound->name); } nextchar += my_strlen (nextchar); return BAD_OPTION; } } else if (pfound->has_arg == 1) { if (optind < argc) optarg = argv[optind++]; else { if (opterr) fprintf (stderr, "%s: option `%s' requires an argument\n", argv[0], argv[optind - 1]); nextchar += my_strlen (nextchar); return optstring[0] == ':' ? ':' : BAD_OPTION; } } nextchar += my_strlen (nextchar); if (longind != NULL) *longind = option_index; if (pfound->flag) { *(pfound->flag) = pfound->val; return 0; } return pfound->val; } /* Can't find it as a long option. If this is not getopt_long_only, or the option starts with '--' or is not a valid short option, then it's an error. Otherwise interpret it as a short option. */ if (!long_only || argv[optind][1] == '-' #ifdef GETOPT_COMPAT || argv[optind][0] == '+' #endif /* GETOPT_COMPAT */ || my_index (optstring, *nextchar) == NULL) { if (opterr) { if (argv[optind][1] == '-') /* --option */ fprintf (stderr, "%s: unrecognized option `--%s'\n", argv[0], nextchar); else /* +option or -option */ fprintf (stderr, "%s: unrecognized option `%c%s'\n", argv[0], argv[optind][0], nextchar); } nextchar = (char *) ""; optind++; return BAD_OPTION; } } /* Look at and handle the next option-character. */ { char c = *nextchar++; char *temp = my_index (optstring, c); /* Increment `optind' when we start to process its last character. */ if (*nextchar == '\0') ++optind; if (temp == NULL || c == ':') { if (opterr) { #if 0 if (c < 040 || c >= 0177) fprintf (stderr, "%s: unrecognized option, character code 0%o\n", argv[0], c); else fprintf (stderr, "%s: unrecognized option `-%c'\n", argv[0], c); #else /* 1003.2 specifies the format of this message. */ fprintf (stderr, "%s: illegal option -- %c\n", argv[0], c); #endif } optopt = c; return BAD_OPTION; } if (temp[1] == ':') { if (temp[2] == ':') { /* This is an option that accepts an argument optionally. */ if (*nextchar != '\0') { optarg = nextchar; optind++; } else optarg = 0; nextchar = NULL; } else { /* This is an option that requires an argument. */ if (*nextchar != '\0') { optarg = nextchar; /* If we end this ARGV-element by taking the rest as an arg, we must advance to the next element now. */ optind++; } else if (optind == argc) { if (opterr) { #if 0 fprintf (stderr, "%s: option `-%c' requires an argument\n", argv[0], c); #else /* 1003.2 specifies the format of this message. */ fprintf (stderr, "%s: option requires an argument -- %c\n", argv[0], c); #endif } optopt = c; if (optstring[0] == ':') c = ':'; else c = BAD_OPTION; } else /* We already incremented `optind' once; increment it again when taking next ARGV-elt as argument. */ optarg = argv[optind++]; nextchar = NULL; } } return c; } } int getopt (argc, argv, optstring) int argc; char *const *argv; const char *optstring; { return _getopt_internal (argc, argv, optstring, (const struct option *) 0, (int *) 0, 0); } int getopt_long (argc, argv, options, long_options, opt_index) int argc; char *const *argv; const char *options; const struct option *long_options; int *opt_index; { return _getopt_internal (argc, argv, options, long_options, opt_index, 0); } #endif /* _LIBC or not __GNU_LIBRARY__. */ #ifdef TEST /* Compile with -DTEST to make an executable for use in testing the above definition of `getopt'. */ int main (argc, argv) int argc; char **argv; { int c; int digit_optind = 0; while (1) { int this_option_optind = optind ? optind : 1; c = getopt (argc, argv, "abc:d:0123456789"); if (c == EOF) break; switch (c) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': if (digit_optind != 0 && digit_optind != this_option_optind) printf ("digits occur in two different argv-elements.\n"); digit_optind = this_option_optind; printf ("option %c\n", c); break; case 'a': printf ("option a\n"); break; case 'b': printf ("option b\n"); break; case 'c': printf ("option c with value `%s'\n", optarg); break; case BAD_OPTION: break; default: printf ("?? getopt returned character code 0%o ??\n", c); } } if (optind < argc) { printf ("non-option ARGV-elements: "); while (optind < argc) printf ("%s ", argv[optind++]); printf ("\n"); } exit (0); } #endif /* TEST */ rinetd-0.73/src/getopt.h0000644060175106010010000001070714011724751014744 0ustar00samNone00000000000000/* THIS IS HERE FOR WIN32's BENEFIT ONLY. */ /* Declarations for getopt. Copyright (C) 1989, 1990, 1991, 1992, 1993 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, 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _GETOPT_H #define _GETOPT_H 1 #ifdef __cplusplus extern "C" { #endif /* For communication from `getopt' to the caller. When `getopt' finds an option that takes an argument, the argument value is returned here. Also, when `ordering' is RETURN_IN_ORDER, each non-option ARGV-element is returned here. */ extern char *optarg; /* Index in ARGV of the next element to be scanned. This is used for communication to and from the caller and for communication between successive calls to `getopt'. On entry to `getopt', zero means this is the first call; initialize. When `getopt' returns EOF, this is the index of the first of the non-option elements that the caller should itself scan. Otherwise, `optind' communicates from one call to the next how much of ARGV has been scanned so far. */ extern int optind; /* Callers store zero here to inhibit the error message `getopt' prints for unrecognized options. */ extern int opterr; /* Set to an option character which was unrecognized. */ extern int optopt; /* Describe the long-named options requested by the application. The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector of `struct option' terminated by an element containing a name which is zero. The field `has_arg' is: no_argument (or 0) if the option does not take an argument, required_argument (or 1) if the option requires an argument, optional_argument (or 2) if the option takes an optional argument. If the field `flag' is not NULL, it points to a variable that is set to the value given in the field `val' when the option is found, but left unchanged if the option is not found. To have a long-named option do something other than set an `int' to a compiled-in constant, such as set a value from `optarg', set the option's `flag' field to zero and its `val' field to a nonzero value (the equivalent single-letter option character, if there is one). 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then leg -o $@ $^; else touch $@; fi # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: rinetd-0.73/src/match.c0000644060175106010010000001005114011724751014521 0ustar00samNone00000000000000/* Copyright © 1997—1999 Thomas Boutell and Boutell.Com, Inc. © 2003—2017 Sam Hocevar This software is released for free use under the terms of the GNU Public License, version 2 or higher. NO WARRANTY IS EXPRESSED OR IMPLIED. USE THIS SOFTWARE AT YOUR OWN RISK. */ #if HAVE_CONFIG_H #include #endif #include #include #include "match.h" int match(char const *sorig, char const *p) { return matchBody(sorig, p, 0); } int matchNoCase(char const *sorig, char const *p) { return matchBody(sorig, p, 1); } #define CASE(x) (nocase ? tolower(x) : (x)) int matchBody(char const *sorig, char const *p, int nocase) { /* Algorithm: Word separator: *. End-of-string is considered to be a word constituent. ? is similarly considered to be a specialized word constituent. Match the word to the current position in s. Empty words automatically succeed. If the word matches s, and the word and s contain end-of-string at that point, return success. \ escapes the next character, including \ itself (6.0). For each *: Find the next occurrence of the next word and advance beyond it in both p and s. If the next word ends in end-of-string and is found successfully, return success, otherwise advance past the *. If the word is not found, return failure. If the next word is empty, advance past the *. Behavior of ?: advance one character in s and p. Addendum: consider the | character to be a logical OR separating distinct patterns. */ char const *s = sorig; int escaped = 0; while (1) { char const *word; int wordLen; int wordPos; if (escaped) { /* This is like the default case, except that | doesn't end the pattern. */ escaped = 0; if ((*s == '\0') && (*p == '\0')) { return 1; } if (CASE(*p) != CASE(*s)) { goto nextPattern; } p++; s++; continue; } switch(*p) { case '\\': /* Escape the next character. */ escaped = 1; p++; continue; case '*': /* Find the next occurrence of the next word and advance beyond it in both p and s. If the next word ends in end-of-string and is found successfully, return success, otherwise advance past the *. If the word is not found, return failure. If the next word is empty, advance. */ p++; wordLen = 0; word = p; while (1) { if ((*p) == '*') { break; } wordLen++; if ((*p == '\0') || (*p == '|')) { break; } p++; } wordPos = 0; while (1) { if (wordPos == wordLen) { if ((*p == '\0') || (*p == '|')) { return 1; } break; } if ((((CASE(*s)) == CASE(word[wordPos])) || ((*s == '\0') && (word[wordPos] == '|'))) || (((*s != '\0') && (*s != '|')) && (word[wordPos] == '?'))) { wordPos++; s++; } else { s -= wordPos; if (!(*s)) { goto nextPattern; } s++; wordPos = 0; } } break; case '?': p++; s++; break; default: if ((*s == '\0') && ((*p == '\0') || (*p == '|'))) { return 1; } if (CASE(*p) != CASE(*s)) { goto nextPattern; } p++; s++; break; } continue; nextPattern: while (1) { if (*p == '\0') { return 0; } if (*p == '|') { p++; s = sorig; break; } p++; } } } #ifdef TEST_MATCH #include #include #include int main(int argc, char *argv[]) { char s[1024]; if (argc != 2) { fprintf(stderr, "Usage: match pattern\n"); return 1; } while (1) { if (!fgets(s, sizeof(s), stdin)) { break; } while (isspace(s[strlen(s) - 1])) { s[strlen(s) - 1] = '\0'; } printf("%s --> %s\n", s, argv[1]); if (match(s, argv[1])) { printf("Match\n"); } else { printf("No Match\n"); } } } #endif /* TEST_MATCH */ rinetd-0.73/src/match.h0000644060175106010010000000105314011724751014530 0ustar00samNone00000000000000/* Copyright © 1997—1999 Thomas Boutell and Boutell.Com, Inc. © 2003—2017 Sam Hocevar This software is released for free use under the terms of the GNU Public License, version 2 or higher. NO WARRANTY IS EXPRESSED OR IMPLIED. USE THIS SOFTWARE AT YOUR OWN RISK. */ #pragma once extern int match(char const *s, char const *p); extern int matchNoCase(char const *s, char const *p); extern int matchBody(char const *s, char const *p, int nocase); rinetd-0.73/src/net.c0000644060175106010010000000450014013664212014212 0ustar00samNone00000000000000/* Copyright © 1997—1999 Thomas Boutell and Boutell.Com, Inc. © 2003—2021 Sam Hocevar This software is released for free use under the terms of the GNU Public License, version 2 or higher. NO WARRANTY IS EXPRESSED OR IMPLIED. USE THIS SOFTWARE AT YOUR OWN RISK. */ #if HAVE_CONFIG_H # include #endif #include #include "net.h" void setSocketDefaults(SOCKET fd) { /* Make socket non-blocking (FIXME: this uses legacy API) */ FIONBIO_ARG_T ioctltmp = 1; #if _WIN32 ioctlsocket(fd, FIONBIO, &ioctltmp); #else ioctl(fd, FIONBIO, &ioctltmp); #endif #if defined __linux__ int tmp = 0; setsockopt(fd, SOL_SOCKET, SO_LINGER, &tmp, sizeof(tmp)); #endif #if !defined __linux__ && !defined _WIN32 int tmp = 1024; setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &tmp, sizeof(tmp)); #endif } int getAddrInfoWithProto(char *address, char *port, int protocol, struct addrinfo **ai) { struct addrinfo hints = { .ai_family = AF_UNSPEC, .ai_protocol = protocol, .ai_socktype = protocol == IPPROTO_UDP ? SOCK_DGRAM : SOCK_STREAM, .ai_flags = AI_PASSIVE, }; int ret = getaddrinfo(address, port, &hints, ai); if (ret != 0) { fprintf(stderr, "rinetd: cannot resolve host \"%s\" port %s " "(getaddrinfo() error: %s)\n", address, port ? port : "", gai_strerror(ret)); } return ret; } int sameSocketAddress(struct sockaddr_storage *a, struct sockaddr_storage *b) { if (a->ss_family != b->ss_family) return 0; switch (a->ss_family) { case AF_INET: { struct sockaddr_in *a4 = (struct sockaddr_in *)a; struct sockaddr_in *b4 = (struct sockaddr_in *)b; return a4->sin_port == b4->sin_port && a4->sin_addr.s_addr == b4->sin_addr.s_addr; } case AF_INET6: { struct sockaddr_in6 *a6 = (struct sockaddr_in6 *)a; struct sockaddr_in6 *b6 = (struct sockaddr_in6 *)b; return a6->sin6_port == b6->sin6_port && a6->sin6_addr.s6_addr == b6->sin6_addr.s6_addr; } } return 0; } uint16_t getPort(struct addrinfo* ai) { switch (ai->ai_family) { case AF_INET: return ntohs(((struct sockaddr_in*)ai->ai_addr)->sin_port); case AF_INET6: return ntohs(((struct sockaddr_in6*)ai->ai_addr)->sin6_port); default: return 0; } } rinetd-0.73/src/net.h0000644060175106010010000000420514013664212014221 0ustar00samNone00000000000000/* Copyright © 1997—1999 Thomas Boutell and Boutell.Com, Inc. © 2003—2021 Sam Hocevar This software is released for free use under the terms of the GNU Public License, version 2 or higher. NO WARRANTY IS EXPRESSED OR IMPLIED. USE THIS SOFTWARE AT YOUR OWN RISK. */ #pragma once #if _WIN32 /* Define this to a reasonably large value */ # define FD_SETSIZE 4096 # include # include # include # include #else # include # include # include # include # include # include #endif #include #if defined HAVE_ERRNO_H # include #endif #if defined HAVE_UNISTD_H # include #endif /* We've got to get FIONBIO from somewhere. Try the Solaris location if it isn't defined yet by the above includes. */ #ifndef FIONBIO # include #endif /* FIONBIO */ #if HAVE_SSIZE_T # define SSIZE_T ssize_t #else # define SSIZE_T int #endif #if HAVE_SOCKLEN_T # define SOCKLEN_T socklen_t #else # define SOCKLEN_T int #endif #if _WIN32 # define FIONBIO_ARG_T u_long #else # define FIONBIO_ARG_T int #endif #if _WIN32 /* _WIN32 doesn't really have WSAEAGAIN */ # ifndef WSAEAGAIN # define WSAEAGAIN WSAEWOULDBLOCK # endif # ifdef gai_strerror # undef gai_strerror # define gai_strerror gai_strerrorA # endif #else /* Windows sockets compatibility defines */ # define INVALID_SOCKET (-1) # define SOCKET_ERROR (-1) static inline int closesocket(int s) { return close(s); } # define WSAEWOULDBLOCK EWOULDBLOCK # define WSAEAGAIN EAGAIN # define WSAEINPROGRESS EINPROGRESS # define WSAEINTR EINTR # define SOCKET int static inline int GetLastError(void) { return errno; } #endif /* _WIN32 */ void setSocketDefaults(SOCKET fd); int sameSocketAddress(struct sockaddr_storage *a, struct sockaddr_storage *b); int getAddrInfoWithProto(char *address, char *port, int protocol, struct addrinfo **ai); uint16_t getPort(struct addrinfo* ai); rinetd-0.73/src/parse.c0000644060175106010010000014625314013676731014563 0ustar00samNone00000000000000/* A recursive-descent parser generated by peg 0.1.18 */ #include #include #include #define YYRULECOUNT 41 #line 9 "parse.peg" #if HAVE_CONFIG_H # include #endif #include "net.h" #include "types.h" #include "rinetd.h" #include "parse.h" #define YY_CTX_LOCAL 1 #define YY_CTX_MEMBERS \ FILE *fp; \ int currentLine; \ int isAuthAllow; \ char *tmpPort, *bindPort, *connectPort; \ int tmpProto, bindProto, connectProto; \ int serverTimeout; \ char *bindAddress, *connectAddress, *sourceAddress; #define YY_INPUT(yyctx, buf, result, max_size) \ { \ int yyc = fgetc(yyctx->fp); \ result = (EOF == yyc) ? 0 : (*(buf) = yyc, 1); \ } #define PARSE_ERROR exit(1); #define MEMORY_ERROR { \ logError("could not allocate memory when parsing configuration.\n"); \ exit(1); \ } #if defined __clang__ #pragma clang diagnostic ignored "-Wunused-parameter" #pragma clang diagnostic ignored "-Wunused-label" #elif defined __GNUC__ #pragma GCC diagnostic ignored "-Wunused-parameter" #pragma GCC diagnostic ignored "-Wunused-label" #endif #ifndef YY_MALLOC #define YY_MALLOC(C, N) malloc(N) #endif #ifndef YY_REALLOC #define YY_REALLOC(C, P, N) realloc(P, N) #endif #ifndef YY_FREE #define YY_FREE(C, P) free(P) #endif #ifndef YY_LOCAL #define YY_LOCAL(T) static T #endif #ifndef YY_ACTION #define YY_ACTION(T) static T #endif #ifndef YY_RULE #define YY_RULE(T) static T #endif #ifndef YY_PARSE #define YY_PARSE(T) T #endif #ifndef YYPARSE #define YYPARSE yyparse #endif #ifndef YYPARSEFROM #define YYPARSEFROM yyparsefrom #endif #ifndef YYRELEASE #define YYRELEASE yyrelease #endif #ifndef YY_BEGIN #define YY_BEGIN ( yy->__begin= yy->__pos, 1) #endif #ifndef YY_END #define YY_END ( yy->__end= yy->__pos, 1) #endif #ifdef YY_DEBUG # define yyprintf(args) fprintf args #else # define yyprintf(args) #endif #ifndef YYSTYPE #define YYSTYPE int #endif #ifndef YY_STACK_SIZE #define YY_STACK_SIZE 128 #endif #ifndef YY_BUFFER_SIZE #define YY_BUFFER_SIZE 1024 #endif #ifndef YY_PART typedef struct _yycontext yycontext; typedef void (*yyaction)(yycontext *yy, char *yytext, int yyleng); typedef struct _yythunk { int begin, end; yyaction action; struct _yythunk *next; } yythunk; struct _yycontext { char *__buf; int __buflen; int __pos; int __limit; char *__text; int __textlen; int __begin; int __end; int __textmax; yythunk *__thunks; int __thunkslen; int __thunkpos; YYSTYPE __; YYSTYPE *__val; YYSTYPE *__vals; int __valslen; #ifdef YY_CTX_MEMBERS YY_CTX_MEMBERS #endif }; #ifdef YY_CTX_LOCAL #define YY_CTX_PARAM_ yycontext *yyctx, #define YY_CTX_PARAM yycontext *yyctx #define YY_CTX_ARG_ yyctx, #define YY_CTX_ARG yyctx #ifndef YY_INPUT #define YY_INPUT(yy, buf, result, max_size) \ { \ int yyc= getchar(); \ result= (EOF == yyc) ? 0 : (*(buf)= yyc, 1); \ yyprintf((stderr, "<%c>", yyc)); \ } #endif #else #define YY_CTX_PARAM_ #define YY_CTX_PARAM #define YY_CTX_ARG_ #define YY_CTX_ARG yycontext _yyctx= { 0, 0 }; yycontext *yyctx= &_yyctx; #ifndef YY_INPUT #define YY_INPUT(buf, result, max_size) \ { \ int yyc= getchar(); \ result= (EOF == yyc) ? 0 : (*(buf)= yyc, 1); \ yyprintf((stderr, "<%c>", yyc)); \ } #endif #endif YY_LOCAL(int) yyrefill(yycontext *yy) { int yyn; while (yy->__buflen - yy->__pos < 512) { yy->__buflen *= 2; yy->__buf= (char *)YY_REALLOC(yy, yy->__buf, yy->__buflen); } #ifdef YY_CTX_LOCAL YY_INPUT(yy, (yy->__buf + yy->__pos), yyn, (yy->__buflen - yy->__pos)); #else YY_INPUT((yy->__buf + yy->__pos), yyn, (yy->__buflen - yy->__pos)); #endif if (!yyn) return 0; yy->__limit += yyn; return 1; } YY_LOCAL(int) yymatchDot(yycontext *yy) { if (yy->__pos >= yy->__limit && !yyrefill(yy)) return 0; ++yy->__pos; return 1; } YY_LOCAL(int) yymatchChar(yycontext *yy, int c) { if (yy->__pos >= yy->__limit && !yyrefill(yy)) return 0; if ((unsigned char)yy->__buf[yy->__pos] == c) { ++yy->__pos; yyprintf((stderr, " ok yymatchChar(yy, %c) @ %s\n", c, yy->__buf+yy->__pos)); return 1; } yyprintf((stderr, " fail yymatchChar(yy, %c) @ %s\n", c, yy->__buf+yy->__pos)); return 0; } YY_LOCAL(int) yymatchString(yycontext *yy, const char *s) { int yysav= yy->__pos; while (*s) { if (yy->__pos >= yy->__limit && !yyrefill(yy)) return 0; if (yy->__buf[yy->__pos] != *s) { yy->__pos= yysav; return 0; } ++s; ++yy->__pos; } return 1; } YY_LOCAL(int) yymatchClass(yycontext *yy, unsigned char *bits) { int c; if (yy->__pos >= yy->__limit && !yyrefill(yy)) return 0; c= (unsigned char)yy->__buf[yy->__pos]; if (bits[c >> 3] & (1 << (c & 7))) { ++yy->__pos; yyprintf((stderr, " ok yymatchClass @ %s\n", yy->__buf+yy->__pos)); return 1; } yyprintf((stderr, " fail yymatchClass @ %s\n", yy->__buf+yy->__pos)); return 0; } YY_LOCAL(void) yyDo(yycontext *yy, yyaction action, int begin, int end) { while (yy->__thunkpos >= yy->__thunkslen) { yy->__thunkslen *= 2; yy->__thunks= (yythunk *)YY_REALLOC(yy, yy->__thunks, sizeof(yythunk) * yy->__thunkslen); } yy->__thunks[yy->__thunkpos].begin= begin; yy->__thunks[yy->__thunkpos].end= end; yy->__thunks[yy->__thunkpos].action= action; ++yy->__thunkpos; } YY_LOCAL(int) yyText(yycontext *yy, int begin, int end) { int yyleng= end - begin; if (yyleng <= 0) yyleng= 0; else { while (yy->__textlen < (yyleng + 1)) { yy->__textlen *= 2; yy->__text= (char *)YY_REALLOC(yy, yy->__text, yy->__textlen); } memcpy(yy->__text, yy->__buf + begin, yyleng); } yy->__text[yyleng]= '\0'; return yyleng; } YY_LOCAL(void) yyDone(yycontext *yy) { int pos; for (pos= 0; pos < yy->__thunkpos; ++pos) { yythunk *thunk= &yy->__thunks[pos]; int yyleng= thunk->end ? yyText(yy, thunk->begin, thunk->end) : thunk->begin; yyprintf((stderr, "DO [%d] %p %s\n", pos, thunk->action, yy->__text)); thunk->action(yy, yy->__text, yyleng); } yy->__thunkpos= 0; } YY_LOCAL(void) yyCommit(yycontext *yy) { if ((yy->__limit -= yy->__pos)) { memmove(yy->__buf, yy->__buf + yy->__pos, yy->__limit); } yy->__begin -= yy->__pos; yy->__end -= yy->__pos; yy->__pos= yy->__thunkpos= 0; } YY_LOCAL(int) yyAccept(yycontext *yy, int tp0) { if (tp0) { fprintf(stderr, "accept denied at %d\n", tp0); return 0; } else { yyDone(yy); yyCommit(yy); } return 1; } YY_LOCAL(void) yyPush(yycontext *yy, char *text, int count) { yy->__val += count; while (yy->__valslen <= yy->__val - yy->__vals) { long offset= yy->__val - yy->__vals; yy->__valslen *= 2; yy->__vals= (YYSTYPE *)YY_REALLOC(yy, yy->__vals, sizeof(YYSTYPE) * yy->__valslen); yy->__val= yy->__vals + offset; } } YY_LOCAL(void) yyPop(yycontext *yy, char *text, int count) { yy->__val -= count; } YY_LOCAL(void) yySet(yycontext *yy, char *text, int count) { yy->__val[count]= yy->__; } #endif /* YY_PART */ #define YYACCEPT yyAccept(yy, yythunkpos0) YY_RULE(int) yy_eof(yycontext *yy); /* 41 */ YY_RULE(int) yy_id(yycontext *yy); /* 40 */ YY_RULE(int) yy_label(yycontext *yy); /* 39 */ YY_RULE(int) yy_bare_ipv6(yycontext *yy); /* 38 */ YY_RULE(int) yy_digit(yycontext *yy); /* 37 */ YY_RULE(int) yy_hexdigit(yycontext *yy); /* 36 */ YY_RULE(int) yy_hostname(yycontext *yy); /* 35 */ YY_RULE(int) yy_ipv6(yycontext *yy); /* 34 */ YY_RULE(int) yy_ipv4(yycontext *yy); /* 33 */ YY_RULE(int) yy_name(yycontext *yy); /* 32 */ YY_RULE(int) yy_filename(yycontext *yy); /* 31 */ YY_RULE(int) yy_pattern(yycontext *yy); /* 30 */ YY_RULE(int) yy_auth_key(yycontext *yy); /* 29 */ YY_RULE(int) yy_service(yycontext *yy); /* 28 */ YY_RULE(int) yy_proto(yycontext *yy); /* 27 */ YY_RULE(int) yy_port(yycontext *yy); /* 26 */ YY_RULE(int) yy_number(yycontext *yy); /* 25 */ YY_RULE(int) yy_option_source(yycontext *yy); /* 24 */ YY_RULE(int) yy_option_timeout(yycontext *yy); /* 23 */ YY_RULE(int) yy_option(yycontext *yy); /* 22 */ YY_RULE(int) yy_option_list(yycontext *yy); /* 21 */ YY_RULE(int) yy_full_port(yycontext *yy); /* 20 */ YY_RULE(int) yy_address(yycontext *yy); /* 19 */ YY_RULE(int) yy_server_options(yycontext *yy); /* 18 */ YY_RULE(int) yy_connect_port(yycontext *yy); /* 17 */ YY_RULE(int) yy_connect_address(yycontext *yy); /* 16 */ YY_RULE(int) yy_bind_port(yycontext *yy); /* 15 */ YY_RULE(int) yy_bind_address(yycontext *yy); /* 14 */ YY_RULE(int) yy_logcommon(yycontext *yy); /* 13 */ YY_RULE(int) yy_pidlogfile(yycontext *yy); /* 12 */ YY_RULE(int) yy_logfile(yycontext *yy); /* 11 */ YY_RULE(int) yy_auth_rule(yycontext *yy); /* 10 */ YY_RULE(int) yy_server_rule(yycontext *yy); /* 9 */ YY_RULE(int) yy_comment(yycontext *yy); /* 8 */ YY_RULE(int) yy_command(yycontext *yy); /* 7 */ YY_RULE(int) yy__(yycontext *yy); /* 6 */ YY_RULE(int) yy_invalid_syntax(yycontext *yy); /* 5 */ YY_RULE(int) yy_eol(yycontext *yy); /* 4 */ YY_RULE(int) yy_line(yycontext *yy); /* 3 */ YY_RULE(int) yy_sol(yycontext *yy); /* 2 */ YY_RULE(int) yy_file(yycontext *yy); /* 1 */ YY_ACTION(void) yy_1_sol(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_1_sol\n")); { #line 161 ++yy->currentLine; ; } #undef yythunkpos #undef yypos #undef yy } YY_ACTION(void) yy_1_invalid_syntax(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_1_invalid_syntax\n")); { #line 135 logError("invalid syntax at line %d: %s\n", yy->currentLine, yytext); PARSE_ERROR; /* FIXME */ ; } #undef yythunkpos #undef yypos #undef yy } YY_ACTION(void) yy_1_logcommon(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_1_logcommon\n")); { #line 130 logFormatCommon = 1; ; } #undef yythunkpos #undef yypos #undef yy } YY_ACTION(void) yy_1_pidlogfile(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_1_pidlogfile\n")); { #line 122 pidLogFileName = strdup(yytext); if (!pidLogFileName) { MEMORY_ERROR; } ; } #undef yythunkpos #undef yypos #undef yy } YY_ACTION(void) yy_1_logfile(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_1_logfile\n")); { #line 114 logFileName = strdup(yytext); if (!logFileName) { MEMORY_ERROR; } ; } #undef yythunkpos #undef yypos #undef yy } YY_ACTION(void) yy_1_auth_key(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_1_auth_key\n")); { #line 111 yy->isAuthAllow = (yytext[0] == 'a'); ; } #undef yythunkpos #undef yypos #undef yy } YY_ACTION(void) yy_1_auth_rule(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_1_auth_rule\n")); { #line 89 allRules = (Rule *) realloc(allRules, sizeof(Rule) * (allRulesCount + 1)); if (!allRules) { MEMORY_ERROR; } allRules[allRulesCount].pattern = strdup(yytext); if (!allRules[allRulesCount].pattern) { MEMORY_ERROR; } allRules[allRulesCount].type = yy->isAuthAllow ? allowRule : denyRule; if (seTotal > 0) { if (seInfo[seTotal - 1].rulesStart == 0) { seInfo[seTotal - 1].rulesStart = allRulesCount; } ++seInfo[seTotal - 1].rulesCount; } else { ++globalRulesCount; } ++allRulesCount; ; } #undef yythunkpos #undef yypos #undef yy } YY_ACTION(void) yy_3_proto(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_3_proto\n")); { #line 86 yy->tmpProto = IPPROTO_TCP; ; } #undef yythunkpos #undef yypos #undef yy } YY_ACTION(void) yy_2_proto(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_2_proto\n")); { #line 85 yy->tmpProto = IPPROTO_UDP; ; } #undef yythunkpos #undef yypos #undef yy } YY_ACTION(void) yy_1_proto(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_1_proto\n")); { #line 84 yy->tmpProto = IPPROTO_TCP; ; } #undef yythunkpos #undef yypos #undef yy } YY_ACTION(void) yy_1_port(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_1_port\n")); { #line 83 yy->tmpPort = strdup(yytext); ; } #undef yythunkpos #undef yypos #undef yy } YY_ACTION(void) yy_1_option_source(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_1_option_source\n")); { #line 79 yy->sourceAddress = strdup(yytext); ; } #undef yythunkpos #undef yypos #undef yy } YY_ACTION(void) yy_1_option_timeout(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_1_option_timeout\n")); { #line 78 yy->serverTimeout = atoi(yytext); ; } #undef yythunkpos #undef yypos #undef yy } YY_ACTION(void) yy_1_connect_port(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_1_connect_port\n")); { #line 73 yy->connectPort = yy->tmpPort; yy->connectProto = yy->tmpProto; ; } #undef yythunkpos #undef yypos #undef yy } YY_ACTION(void) yy_1_bind_port(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_1_bind_port\n")); { #line 72 yy->bindPort = yy->tmpPort; yy->bindProto = yy->tmpProto; ; } #undef yythunkpos #undef yypos #undef yy } YY_ACTION(void) yy_1_connect_address(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_1_connect_address\n")); { #line 71 yy->connectAddress = strdup(yytext); ; } #undef yythunkpos #undef yypos #undef yy } YY_ACTION(void) yy_1_bind_address(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_1_bind_address\n")); { #line 70 yy->bindAddress = strdup(yytext); ; } #undef yythunkpos #undef yypos #undef yy } YY_ACTION(void) yy_1_server_rule(yycontext *yy, char *yytext, int yyleng) { #define __ yy->__ #define yypos yy->__pos #define yythunkpos yy->__thunkpos yyprintf((stderr, "do yy_1_server_rule\n")); { #line 55 addServer(yy->bindAddress, yy->bindPort, yy->bindProto, yy->connectAddress, yy->connectPort, yy->connectProto, yy->serverTimeout > 0 ? yy->serverTimeout : RINETD_DEFAULT_UDP_TIMEOUT, yy->sourceAddress); free(yy->bindAddress); free(yy->connectAddress); free(yy->sourceAddress); yy->bindAddress = yy->connectAddress = yy->sourceAddress = NULL; free(yy->bindPort); free(yy->connectPort); yy->bindPort = yy->connectPort = NULL; yy->serverTimeout = 0; ; } #undef yythunkpos #undef yypos #undef yy } YY_RULE(int) yy_eof(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "eof")); if (!yymatchChar(yy, '\0')) goto l1; yyprintf((stderr, " ok %s @ %s\n", "eof", yy->__buf+yy->__pos)); return 1; l1:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "eof", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_id(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "id")); if (!yymatchClass(yy, (unsigned char *)"\000\000\000\000\000\000\000\000\376\377\377\207\376\377\377\007\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000")) goto l2; yyprintf((stderr, " ok %s @ %s\n", "id", yy->__buf+yy->__pos)); return 1; l2:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "id", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_label(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "label")); { int yypos4= yy->__pos, yythunkpos4= yy->__thunkpos; if (!yy_id(yy)) goto l5; goto l4; l5:; yy->__pos= yypos4; yy->__thunkpos= yythunkpos4; if (!yy_digit(yy)) goto l3; } l4:; l6:; { int yypos7= yy->__pos, yythunkpos7= yy->__thunkpos; { int yypos8= yy->__pos, yythunkpos8= yy->__thunkpos; if (!yymatchChar(yy, '-')) goto l9; goto l8; l9:; yy->__pos= yypos8; yy->__thunkpos= yythunkpos8; if (!yy_id(yy)) goto l10; goto l8; l10:; yy->__pos= yypos8; yy->__thunkpos= yythunkpos8; if (!yy_digit(yy)) goto l7; } l8:; goto l6; l7:; yy->__pos= yypos7; yy->__thunkpos= yythunkpos7; } yyprintf((stderr, " ok %s @ %s\n", "label", yy->__buf+yy->__pos)); return 1; l3:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "label", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_bare_ipv6(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "bare_ipv6")); l12:; { int yypos13= yy->__pos, yythunkpos13= yy->__thunkpos; if (!yy_hexdigit(yy)) goto l13; goto l12; l13:; yy->__pos= yypos13; yy->__thunkpos= yythunkpos13; } if (!yymatchChar(yy, ':')) goto l11; l14:; { int yypos15= yy->__pos, yythunkpos15= yy->__thunkpos; { int yypos16= yy->__pos, yythunkpos16= yy->__thunkpos; if (!yy_hexdigit(yy)) goto l17; goto l16; l17:; yy->__pos= yypos16; yy->__thunkpos= yythunkpos16; if (!yymatchChar(yy, ':')) goto l15; } l16:; goto l14; l15:; yy->__pos= yypos15; yy->__thunkpos= yythunkpos15; } yyprintf((stderr, " ok %s @ %s\n", "bare_ipv6", yy->__buf+yy->__pos)); return 1; l11:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "bare_ipv6", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_digit(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "digit")); if (!yymatchClass(yy, (unsigned char *)"\000\000\000\000\000\000\377\003\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000")) goto l18; yyprintf((stderr, " ok %s @ %s\n", "digit", yy->__buf+yy->__pos)); return 1; l18:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "digit", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_hexdigit(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "hexdigit")); if (!yymatchClass(yy, (unsigned char *)"\000\000\000\000\000\000\377\003\176\000\000\000\176\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000")) goto l19; yyprintf((stderr, " ok %s @ %s\n", "hexdigit", yy->__buf+yy->__pos)); return 1; l19:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "hexdigit", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_hostname(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "hostname")); l21:; { int yypos22= yy->__pos, yythunkpos22= yy->__thunkpos; if (!yy_label(yy)) goto l22; if (!yymatchChar(yy, '.')) goto l22; goto l21; l22:; yy->__pos= yypos22; yy->__thunkpos= yythunkpos22; } if (!yy_name(yy)) goto l20; { int yypos23= yy->__pos, yythunkpos23= yy->__thunkpos; if (!yymatchChar(yy, '.')) goto l23; goto l24; l23:; yy->__pos= yypos23; yy->__thunkpos= yythunkpos23; } l24:; yyprintf((stderr, " ok %s @ %s\n", "hostname", yy->__buf+yy->__pos)); return 1; l20:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "hostname", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_ipv6(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "ipv6")); { int yypos26= yy->__pos, yythunkpos26= yy->__thunkpos; if (!yymatchChar(yy, '[')) goto l27; if (!yy_bare_ipv6(yy)) goto l27; if (!yymatchChar(yy, ']')) goto l27; goto l26; l27:; yy->__pos= yypos26; yy->__thunkpos= yythunkpos26; if (!yy_bare_ipv6(yy)) goto l25; } l26:; yyprintf((stderr, " ok %s @ %s\n", "ipv6", yy->__buf+yy->__pos)); return 1; l25:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "ipv6", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_ipv4(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "ipv4")); { int yypos29= yy->__pos, yythunkpos29= yy->__thunkpos; if (!yy_number(yy)) goto l30; if (!yymatchChar(yy, '.')) goto l30; if (!yy_number(yy)) goto l30; if (!yymatchChar(yy, '.')) goto l30; if (!yy_number(yy)) goto l30; if (!yymatchChar(yy, '.')) goto l30; if (!yy_number(yy)) goto l30; goto l29; l30:; yy->__pos= yypos29; yy->__thunkpos= yythunkpos29; if (!yymatchChar(yy, '0')) goto l28; } l29:; yyprintf((stderr, " ok %s @ %s\n", "ipv4", yy->__buf+yy->__pos)); return 1; l28:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "ipv4", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_name(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "name")); if (!yy_id(yy)) goto l31; l32:; { int yypos33= yy->__pos, yythunkpos33= yy->__thunkpos; { int yypos34= yy->__pos, yythunkpos34= yy->__thunkpos; if (!yymatchChar(yy, '-')) goto l35; goto l34; l35:; yy->__pos= yypos34; yy->__thunkpos= yythunkpos34; if (!yy_id(yy)) goto l36; goto l34; l36:; yy->__pos= yypos34; yy->__thunkpos= yythunkpos34; if (!yy_digit(yy)) goto l33; } l34:; goto l32; l33:; yy->__pos= yypos33; yy->__thunkpos= yythunkpos33; } yyprintf((stderr, " ok %s @ %s\n", "name", yy->__buf+yy->__pos)); return 1; l31:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "name", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_filename(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "filename")); { int yypos38= yy->__pos, yythunkpos38= yy->__thunkpos; if (!yymatchChar(yy, '"')) goto l39; if (!yymatchClass(yy, (unsigned char *)"\377\377\377\377\373\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377")) goto l39; l40:; { int yypos41= yy->__pos, yythunkpos41= yy->__thunkpos; if (!yymatchClass(yy, (unsigned char *)"\377\377\377\377\373\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377")) goto l41; goto l40; l41:; yy->__pos= yypos41; yy->__thunkpos= yythunkpos41; } if (!yymatchChar(yy, '"')) goto l39; goto l38; l39:; yy->__pos= yypos38; yy->__thunkpos= yythunkpos38; if (!yymatchClass(yy, (unsigned char *)"\377\331\377\377\376\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377")) goto l37; l42:; { int yypos43= yy->__pos, yythunkpos43= yy->__thunkpos; if (!yymatchClass(yy, (unsigned char *)"\377\331\377\377\376\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377")) goto l43; goto l42; l43:; yy->__pos= yypos43; yy->__thunkpos= yythunkpos43; } } l38:; yyprintf((stderr, " ok %s @ %s\n", "filename", yy->__buf+yy->__pos)); return 1; l37:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "filename", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_pattern(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "pattern")); { int yypos47= yy->__pos, yythunkpos47= yy->__thunkpos; if (!yy_hexdigit(yy)) goto l48; goto l47; l48:; yy->__pos= yypos47; yy->__thunkpos= yythunkpos47; if (!yymatchChar(yy, '[')) goto l49; goto l47; l49:; yy->__pos= yypos47; yy->__thunkpos= yythunkpos47; if (!yymatchChar(yy, ']')) goto l50; goto l47; l50:; yy->__pos= yypos47; yy->__thunkpos= yythunkpos47; if (!yymatchChar(yy, ':')) goto l51; goto l47; l51:; yy->__pos= yypos47; yy->__thunkpos= yythunkpos47; if (!yymatchChar(yy, '.')) goto l52; goto l47; l52:; yy->__pos= yypos47; yy->__thunkpos= yythunkpos47; if (!yymatchClass(yy, (unsigned char *)"\000\000\000\000\000\004\000\200\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000")) goto l44; } l47:; l45:; { int yypos46= yy->__pos, yythunkpos46= yy->__thunkpos; { int yypos53= yy->__pos, yythunkpos53= yy->__thunkpos; if (!yy_hexdigit(yy)) goto l54; goto l53; l54:; yy->__pos= yypos53; yy->__thunkpos= yythunkpos53; if (!yymatchChar(yy, '[')) goto l55; goto l53; l55:; yy->__pos= yypos53; yy->__thunkpos= yythunkpos53; if (!yymatchChar(yy, ']')) goto l56; goto l53; l56:; yy->__pos= yypos53; yy->__thunkpos= yythunkpos53; if (!yymatchChar(yy, ':')) goto l57; goto l53; l57:; yy->__pos= yypos53; yy->__thunkpos= yythunkpos53; if (!yymatchChar(yy, '.')) goto l58; goto l53; l58:; yy->__pos= yypos53; yy->__thunkpos= yythunkpos53; if (!yymatchClass(yy, (unsigned char *)"\000\000\000\000\000\004\000\200\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000")) goto l46; } l53:; goto l45; l46:; yy->__pos= yypos46; yy->__thunkpos= yythunkpos46; } yyprintf((stderr, " ok %s @ %s\n", "pattern", yy->__buf+yy->__pos)); return 1; l44:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "pattern", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_auth_key(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "auth_key")); yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_BEGIN)) goto l59; #undef yytext #undef yyleng } { int yypos60= yy->__pos, yythunkpos60= yy->__thunkpos; if (!yymatchString(yy, "allow")) goto l61; goto l60; l61:; yy->__pos= yypos60; yy->__thunkpos= yythunkpos60; if (!yymatchString(yy, "deny")) goto l59; } l60:; yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_END)) goto l59; #undef yytext #undef yyleng } yyDo(yy, yy_1_auth_key, yy->__begin, yy->__end); yyprintf((stderr, " ok %s @ %s\n", "auth_key", yy->__buf+yy->__pos)); return 1; l59:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "auth_key", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_service(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "service")); if (!yy_name(yy)) goto l62; yyprintf((stderr, " ok %s @ %s\n", "service", yy->__buf+yy->__pos)); return 1; l62:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "service", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_proto(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "proto")); { int yypos64= yy->__pos, yythunkpos64= yy->__thunkpos; if (!yymatchString(yy, "/tcp")) goto l65; yyDo(yy, yy_1_proto, yy->__begin, yy->__end); goto l64; l65:; yy->__pos= yypos64; yy->__thunkpos= yythunkpos64; if (!yymatchString(yy, "/udp")) goto l66; yyDo(yy, yy_2_proto, yy->__begin, yy->__end); goto l64; l66:; yy->__pos= yypos64; yy->__thunkpos= yythunkpos64; if (!yymatchString(yy, "")) goto l63; yyDo(yy, yy_3_proto, yy->__begin, yy->__end); } l64:; yyprintf((stderr, " ok %s @ %s\n", "proto", yy->__buf+yy->__pos)); return 1; l63:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "proto", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_port(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "port")); yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_BEGIN)) goto l67; #undef yytext #undef yyleng } { int yypos68= yy->__pos, yythunkpos68= yy->__thunkpos; if (!yy_number(yy)) goto l69; goto l68; l69:; yy->__pos= yypos68; yy->__thunkpos= yythunkpos68; if (!yy_service(yy)) goto l67; } l68:; yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_END)) goto l67; #undef yytext #undef yyleng } yyDo(yy, yy_1_port, yy->__begin, yy->__end); yyprintf((stderr, " ok %s @ %s\n", "port", yy->__buf+yy->__pos)); return 1; l67:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "port", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_number(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "number")); if (!yy_digit(yy)) goto l70; l71:; { int yypos72= yy->__pos, yythunkpos72= yy->__thunkpos; if (!yy_digit(yy)) goto l72; goto l71; l72:; yy->__pos= yypos72; yy->__thunkpos= yythunkpos72; } yyprintf((stderr, " ok %s @ %s\n", "number", yy->__buf+yy->__pos)); return 1; l70:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "number", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_option_source(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "option_source")); if (!yymatchString(yy, "src")) goto l73; { int yypos74= yy->__pos, yythunkpos74= yy->__thunkpos; if (!yy__(yy)) goto l74; goto l75; l74:; yy->__pos= yypos74; yy->__thunkpos= yythunkpos74; } l75:; if (!yymatchChar(yy, '=')) goto l73; { int yypos76= yy->__pos, yythunkpos76= yy->__thunkpos; if (!yy__(yy)) goto l76; goto l77; l76:; yy->__pos= yypos76; yy->__thunkpos= yythunkpos76; } l77:; yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_BEGIN)) goto l73; #undef yytext #undef yyleng } if (!yy_address(yy)) goto l73; yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_END)) goto l73; #undef yytext #undef yyleng } yyDo(yy, yy_1_option_source, yy->__begin, yy->__end); yyprintf((stderr, " ok %s @ %s\n", "option_source", yy->__buf+yy->__pos)); return 1; l73:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "option_source", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_option_timeout(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "option_timeout")); if (!yymatchString(yy, "timeout")) goto l78; { int yypos79= yy->__pos, yythunkpos79= yy->__thunkpos; if (!yy__(yy)) goto l79; goto l80; l79:; yy->__pos= yypos79; yy->__thunkpos= yythunkpos79; } l80:; if (!yymatchChar(yy, '=')) goto l78; { int yypos81= yy->__pos, yythunkpos81= yy->__thunkpos; if (!yy__(yy)) goto l81; goto l82; l81:; yy->__pos= yypos81; yy->__thunkpos= yythunkpos81; } l82:; yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_BEGIN)) goto l78; #undef yytext #undef yyleng } if (!yy_number(yy)) goto l78; yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_END)) goto l78; #undef yytext #undef yyleng } yyDo(yy, yy_1_option_timeout, yy->__begin, yy->__end); yyprintf((stderr, " ok %s @ %s\n", "option_timeout", yy->__buf+yy->__pos)); return 1; l78:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "option_timeout", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_option(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "option")); { int yypos84= yy->__pos, yythunkpos84= yy->__thunkpos; if (!yy_option_timeout(yy)) goto l85; goto l84; l85:; yy->__pos= yypos84; yy->__thunkpos= yythunkpos84; if (!yy_option_source(yy)) goto l83; } l84:; yyprintf((stderr, " ok %s @ %s\n", "option", yy->__buf+yy->__pos)); return 1; l83:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "option", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_option_list(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "option_list")); if (!yy_option(yy)) goto l86; { int yypos87= yy->__pos, yythunkpos87= yy->__thunkpos; { int yypos89= yy->__pos, yythunkpos89= yy->__thunkpos; if (!yy__(yy)) goto l89; goto l90; l89:; yy->__pos= yypos89; yy->__thunkpos= yythunkpos89; } l90:; if (!yymatchChar(yy, ',')) goto l87; { int yypos91= yy->__pos, yythunkpos91= yy->__thunkpos; if (!yy__(yy)) goto l91; goto l92; l91:; yy->__pos= yypos91; yy->__thunkpos= yythunkpos91; } l92:; if (!yy_option_list(yy)) goto l87; goto l88; l87:; yy->__pos= yypos87; yy->__thunkpos= yythunkpos87; } l88:; yyprintf((stderr, " ok %s @ %s\n", "option_list", yy->__buf+yy->__pos)); return 1; l86:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "option_list", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_full_port(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "full_port")); if (!yy_port(yy)) goto l93; if (!yy_proto(yy)) goto l93; yyprintf((stderr, " ok %s @ %s\n", "full_port", yy->__buf+yy->__pos)); return 1; l93:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "full_port", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_address(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "address")); { int yypos95= yy->__pos, yythunkpos95= yy->__thunkpos; if (!yy_ipv4(yy)) goto l96; goto l95; l96:; yy->__pos= yypos95; yy->__thunkpos= yythunkpos95; if (!yy_ipv6(yy)) goto l97; goto l95; l97:; yy->__pos= yypos95; yy->__thunkpos= yythunkpos95; if (!yy_hostname(yy)) goto l94; } l95:; yyprintf((stderr, " ok %s @ %s\n", "address", yy->__buf+yy->__pos)); return 1; l94:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "address", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_server_options(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "server_options")); if (!yymatchChar(yy, '[')) goto l98; { int yypos99= yy->__pos, yythunkpos99= yy->__thunkpos; if (!yy__(yy)) goto l99; goto l100; l99:; yy->__pos= yypos99; yy->__thunkpos= yythunkpos99; } l100:; if (!yy_option_list(yy)) goto l98; { int yypos101= yy->__pos, yythunkpos101= yy->__thunkpos; if (!yy__(yy)) goto l101; goto l102; l101:; yy->__pos= yypos101; yy->__thunkpos= yythunkpos101; } l102:; if (!yymatchChar(yy, ']')) goto l98; yyprintf((stderr, " ok %s @ %s\n", "server_options", yy->__buf+yy->__pos)); return 1; l98:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "server_options", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_connect_port(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "connect_port")); if (!yy_full_port(yy)) goto l103; yyDo(yy, yy_1_connect_port, yy->__begin, yy->__end); yyprintf((stderr, " ok %s @ %s\n", "connect_port", yy->__buf+yy->__pos)); return 1; l103:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "connect_port", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_connect_address(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "connect_address")); yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_BEGIN)) goto l104; #undef yytext #undef yyleng } if (!yy_address(yy)) goto l104; yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_END)) goto l104; #undef yytext #undef yyleng } yyDo(yy, yy_1_connect_address, yy->__begin, yy->__end); yyprintf((stderr, " ok %s @ %s\n", "connect_address", yy->__buf+yy->__pos)); return 1; l104:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "connect_address", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_bind_port(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "bind_port")); if (!yy_full_port(yy)) goto l105; yyDo(yy, yy_1_bind_port, yy->__begin, yy->__end); yyprintf((stderr, " ok %s @ %s\n", "bind_port", yy->__buf+yy->__pos)); return 1; l105:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "bind_port", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_bind_address(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "bind_address")); yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_BEGIN)) goto l106; #undef yytext #undef yyleng } if (!yy_address(yy)) goto l106; yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_END)) goto l106; #undef yytext #undef yyleng } yyDo(yy, yy_1_bind_address, yy->__begin, yy->__end); yyprintf((stderr, " ok %s @ %s\n", "bind_address", yy->__buf+yy->__pos)); return 1; l106:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "bind_address", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_logcommon(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "logcommon")); if (!yymatchString(yy, "logcommon")) goto l107; yyDo(yy, yy_1_logcommon, yy->__begin, yy->__end); yyprintf((stderr, " ok %s @ %s\n", "logcommon", yy->__buf+yy->__pos)); return 1; l107:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "logcommon", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_pidlogfile(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "pidlogfile")); if (!yymatchString(yy, "pidlogfile")) goto l108; if (!yy__(yy)) goto l108; yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_BEGIN)) goto l108; #undef yytext #undef yyleng } if (!yy_filename(yy)) goto l108; yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_END)) goto l108; #undef yytext #undef yyleng } yyDo(yy, yy_1_pidlogfile, yy->__begin, yy->__end); yyprintf((stderr, " ok %s @ %s\n", "pidlogfile", yy->__buf+yy->__pos)); return 1; l108:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "pidlogfile", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_logfile(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "logfile")); if (!yymatchString(yy, "logfile")) goto l109; if (!yy__(yy)) goto l109; yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_BEGIN)) goto l109; #undef yytext #undef yyleng } if (!yy_filename(yy)) goto l109; yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_END)) goto l109; #undef yytext #undef yyleng } yyDo(yy, yy_1_logfile, yy->__begin, yy->__end); yyprintf((stderr, " ok %s @ %s\n", "logfile", yy->__buf+yy->__pos)); return 1; l109:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "logfile", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_auth_rule(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "auth_rule")); if (!yy_auth_key(yy)) goto l110; if (!yy__(yy)) goto l110; yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_BEGIN)) goto l110; #undef yytext #undef yyleng } if (!yy_pattern(yy)) goto l110; yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_END)) goto l110; #undef yytext #undef yyleng } yyDo(yy, yy_1_auth_rule, yy->__begin, yy->__end); yyprintf((stderr, " ok %s @ %s\n", "auth_rule", yy->__buf+yy->__pos)); return 1; l110:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "auth_rule", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_server_rule(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "server_rule")); if (!yy_bind_address(yy)) goto l111; if (!yy__(yy)) goto l111; if (!yy_bind_port(yy)) goto l111; if (!yy__(yy)) goto l111; if (!yy_connect_address(yy)) goto l111; if (!yy__(yy)) goto l111; if (!yy_connect_port(yy)) goto l111; { int yypos112= yy->__pos, yythunkpos112= yy->__thunkpos; { int yypos114= yy->__pos, yythunkpos114= yy->__thunkpos; if (!yy__(yy)) goto l114; goto l115; l114:; yy->__pos= yypos114; yy->__thunkpos= yythunkpos114; } l115:; if (!yy_server_options(yy)) goto l112; goto l113; l112:; yy->__pos= yypos112; yy->__thunkpos= yythunkpos112; } l113:; yyDo(yy, yy_1_server_rule, yy->__begin, yy->__end); yyprintf((stderr, " ok %s @ %s\n", "server_rule", yy->__buf+yy->__pos)); return 1; l111:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "server_rule", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_comment(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "comment")); if (!yymatchChar(yy, '#')) goto l116; l117:; { int yypos118= yy->__pos, yythunkpos118= yy->__thunkpos; { int yypos119= yy->__pos, yythunkpos119= yy->__thunkpos; if (!yy_eol(yy)) goto l119; goto l118; l119:; yy->__pos= yypos119; yy->__thunkpos= yythunkpos119; } if (!yymatchDot(yy)) goto l118; goto l117; l118:; yy->__pos= yypos118; yy->__thunkpos= yythunkpos118; } yyprintf((stderr, " ok %s @ %s\n", "comment", yy->__buf+yy->__pos)); return 1; l116:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "comment", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_command(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "command")); { int yypos121= yy->__pos, yythunkpos121= yy->__thunkpos; if (!yy_server_rule(yy)) goto l122; goto l121; l122:; yy->__pos= yypos121; yy->__thunkpos= yythunkpos121; if (!yy_auth_rule(yy)) goto l123; goto l121; l123:; yy->__pos= yypos121; yy->__thunkpos= yythunkpos121; if (!yy_logfile(yy)) goto l124; goto l121; l124:; yy->__pos= yypos121; yy->__thunkpos= yythunkpos121; if (!yy_pidlogfile(yy)) goto l125; goto l121; l125:; yy->__pos= yypos121; yy->__thunkpos= yythunkpos121; if (!yy_logcommon(yy)) goto l120; } l121:; yyprintf((stderr, " ok %s @ %s\n", "command", yy->__buf+yy->__pos)); return 1; l120:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "command", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy__(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "_")); if (!yymatchClass(yy, (unsigned char *)"\000\002\000\000\001\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000")) goto l126; l127:; { int yypos128= yy->__pos, yythunkpos128= yy->__thunkpos; if (!yymatchClass(yy, (unsigned char *)"\000\002\000\000\001\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000")) goto l128; goto l127; l128:; yy->__pos= yypos128; yy->__thunkpos= yythunkpos128; } yyprintf((stderr, " ok %s @ %s\n", "_", yy->__buf+yy->__pos)); return 1; l126:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "_", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_invalid_syntax(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "invalid_syntax")); yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_BEGIN)) goto l129; #undef yytext #undef yyleng } { int yypos132= yy->__pos, yythunkpos132= yy->__thunkpos; if (!yy_eol(yy)) goto l132; goto l129; l132:; yy->__pos= yypos132; yy->__thunkpos= yythunkpos132; } if (!yymatchDot(yy)) goto l129; l130:; { int yypos131= yy->__pos, yythunkpos131= yy->__thunkpos; { int yypos133= yy->__pos, yythunkpos133= yy->__thunkpos; if (!yy_eol(yy)) goto l133; goto l131; l133:; yy->__pos= yypos133; yy->__thunkpos= yythunkpos133; } if (!yymatchDot(yy)) goto l131; goto l130; l131:; yy->__pos= yypos131; yy->__thunkpos= yythunkpos131; } yyText(yy, yy->__begin, yy->__end); { #define yytext yy->__text #define yyleng yy->__textlen if (!(YY_END)) goto l129; #undef yytext #undef yyleng } if (!yy_eol(yy)) goto l129; yyDo(yy, yy_1_invalid_syntax, yy->__begin, yy->__end); yyprintf((stderr, " ok %s @ %s\n", "invalid_syntax", yy->__buf+yy->__pos)); return 1; l129:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "invalid_syntax", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_eol(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "eol")); { int yypos135= yy->__pos, yythunkpos135= yy->__thunkpos; { int yypos137= yy->__pos, yythunkpos137= yy->__thunkpos; if (!yymatchChar(yy, '\r')) goto l137; goto l138; l137:; yy->__pos= yypos137; yy->__thunkpos= yythunkpos137; } l138:; if (!yymatchChar(yy, '\n')) goto l136; goto l135; l136:; yy->__pos= yypos135; yy->__thunkpos= yythunkpos135; if (!yy_eof(yy)) goto l134; } l135:; yyprintf((stderr, " ok %s @ %s\n", "eol", yy->__buf+yy->__pos)); return 1; l134:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "eol", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_line(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "line")); { int yypos140= yy->__pos, yythunkpos140= yy->__thunkpos; if (!yy__(yy)) goto l140; goto l141; l140:; yy->__pos= yypos140; yy->__thunkpos= yythunkpos140; } l141:; { int yypos142= yy->__pos, yythunkpos142= yy->__thunkpos; if (!yy_command(yy)) goto l142; { int yypos144= yy->__pos, yythunkpos144= yy->__thunkpos; if (!yy__(yy)) goto l144; goto l145; l144:; yy->__pos= yypos144; yy->__thunkpos= yythunkpos144; } l145:; goto l143; l142:; yy->__pos= yypos142; yy->__thunkpos= yythunkpos142; } l143:; { int yypos146= yy->__pos, yythunkpos146= yy->__thunkpos; if (!yy_comment(yy)) goto l146; goto l147; l146:; yy->__pos= yypos146; yy->__thunkpos= yythunkpos146; } l147:; yyprintf((stderr, " ok %s @ %s\n", "line", yy->__buf+yy->__pos)); return 1; l139:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "line", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_sol(yycontext *yy) { int yypos0= yy->__pos, yythunkpos0= yy->__thunkpos; yyprintf((stderr, "%s\n", "sol")); yyDo(yy, yy_1_sol, yy->__begin, yy->__end); yyprintf((stderr, " ok %s @ %s\n", "sol", yy->__buf+yy->__pos)); return 1; l148:; yy->__pos= yypos0; yy->__thunkpos= yythunkpos0; yyprintf((stderr, " fail %s @ %s\n", "sol", yy->__buf+yy->__pos)); return 0; } YY_RULE(int) yy_file(yycontext *yy) { yyprintf((stderr, "%s\n", "file")); l150:; { int yypos151= yy->__pos, yythunkpos151= yy->__thunkpos; if (!yy_sol(yy)) goto l151; { int yypos152= yy->__pos, yythunkpos152= yy->__thunkpos; if (!yy_line(yy)) goto l153; if (!yy_eol(yy)) goto l153; goto l152; l153:; yy->__pos= yypos152; yy->__thunkpos= yythunkpos152; if (!yy_invalid_syntax(yy)) goto l151; } l152:; goto l150; l151:; yy->__pos= yypos151; yy->__thunkpos= yythunkpos151; } yyprintf((stderr, " ok %s @ %s\n", "file", yy->__buf+yy->__pos)); return 1; } #ifndef YY_PART typedef int (*yyrule)(yycontext *yy); YY_PARSE(int) YYPARSEFROM(YY_CTX_PARAM_ yyrule yystart) { int yyok; if (!yyctx->__buflen) { yyctx->__buflen= YY_BUFFER_SIZE; yyctx->__buf= (char *)YY_MALLOC(yyctx, yyctx->__buflen); yyctx->__textlen= YY_BUFFER_SIZE; yyctx->__text= (char *)YY_MALLOC(yyctx, yyctx->__textlen); yyctx->__thunkslen= YY_STACK_SIZE; yyctx->__thunks= (yythunk *)YY_MALLOC(yyctx, sizeof(yythunk) * yyctx->__thunkslen); yyctx->__valslen= YY_STACK_SIZE; yyctx->__vals= (YYSTYPE *)YY_MALLOC(yyctx, sizeof(YYSTYPE) * yyctx->__valslen); yyctx->__begin= yyctx->__end= yyctx->__pos= yyctx->__limit= yyctx->__thunkpos= 0; } yyctx->__begin= yyctx->__end= yyctx->__pos; yyctx->__thunkpos= 0; yyctx->__val= yyctx->__vals; yyok= yystart(yyctx); if (yyok) yyDone(yyctx); yyCommit(yyctx); return yyok; } YY_PARSE(int) YYPARSE(YY_CTX_PARAM) { return YYPARSEFROM(YY_CTX_ARG_ yy_file); } YY_PARSE(yycontext *) YYRELEASE(yycontext *yyctx) { if (yyctx->__buflen) { yyctx->__buflen= 0; YY_FREE(yyctx, yyctx->__buf); YY_FREE(yyctx, yyctx->__text); YY_FREE(yyctx, yyctx->__thunks); YY_FREE(yyctx, yyctx->__vals); } return yyctx; } #endif #line 165 "parse.peg" void parseConfiguration(char const *file) { FILE *in = fopen(file, "r"); if (!in) { logError("could not open configuration file %s.\n", file); exit(1); } yycontext ctx; memset(&ctx, 0, sizeof(yycontext)); ctx.fp = in; if (!yyparse(&ctx)) { logError("invalid syntax in file %s, line %d.\n", file, -1); exit(1); } yyrelease(&ctx); fclose(in); /* Avoid warnings for these unused functions */ (void)yySet; (void)yyPush; (void)yyPop; (void)yyAccept; } rinetd-0.73/src/parse.h0000644060175106010010000000065414011724751014554 0ustar00samNone00000000000000/* Copyright © 1997—1999 Thomas Boutell and Boutell.Com, Inc. © 2003—2017 Sam Hocevar This software is released for free use under the terms of the GNU Public License, version 2 or higher. NO WARRANTY IS EXPRESSED OR IMPLIED. USE THIS SOFTWARE AT YOUR OWN RISK. */ #pragma once void parseConfiguration(char const *in); rinetd-0.73/src/parse.peg0000644060175106010010000001243014013676546015105 0ustar00samNone00000000000000# Copyright © 1997—1999 Thomas Boutell # and Boutell.Com, Inc. # © 2003—2021 Sam Hocevar # # This software is released for free use under the terms of # the GNU Public License, version 2 or higher. NO WARRANTY # IS EXPRESSED OR IMPLIED. USE THIS SOFTWARE AT YOUR OWN RISK. */ %{ #if HAVE_CONFIG_H # include #endif #include "net.h" #include "types.h" #include "rinetd.h" #include "parse.h" #define YY_CTX_LOCAL 1 #define YY_CTX_MEMBERS \ FILE *fp; \ int currentLine; \ int isAuthAllow; \ char *tmpPort, *bindPort, *connectPort; \ int tmpProto, bindProto, connectProto; \ int serverTimeout; \ char *bindAddress, *connectAddress, *sourceAddress; #define YY_INPUT(yyctx, buf, result, max_size) \ { \ int yyc = fgetc(yyctx->fp); \ result = (EOF == yyc) ? 0 : (*(buf) = yyc, 1); \ } #define PARSE_ERROR exit(1); #define MEMORY_ERROR { \ logError("could not allocate memory when parsing configuration.\n"); \ exit(1); \ } #if defined __clang__ #pragma clang diagnostic ignored "-Wunused-parameter" #pragma clang diagnostic ignored "-Wunused-label" #elif defined __GNUC__ #pragma GCC diagnostic ignored "-Wunused-parameter" #pragma GCC diagnostic ignored "-Wunused-label" #endif %} file = (sol (line eol | invalid-syntax))* line = -? (command -?)? comment? command = (server-rule | auth-rule | logfile | pidlogfile | logcommon) comment = "#" (!eol .)* server-rule = bind-address - bind-port - connect-address - connect-port (-? server-options)? { addServer(yy->bindAddress, yy->bindPort, yy->bindProto, yy->connectAddress, yy->connectPort, yy->connectProto, yy->serverTimeout > 0 ? yy->serverTimeout : RINETD_DEFAULT_UDP_TIMEOUT, yy->sourceAddress); free(yy->bindAddress); free(yy->connectAddress); free(yy->sourceAddress); yy->bindAddress = yy->connectAddress = yy->sourceAddress = NULL; free(yy->bindPort); free(yy->connectPort); yy->bindPort = yy->connectPort = NULL; yy->serverTimeout = 0; } bind-address = < address > { yy->bindAddress = strdup(yytext); } connect-address = < address > { yy->connectAddress = strdup(yytext); } bind-port = full-port { yy->bindPort = yy->tmpPort; yy->bindProto = yy->tmpProto; } connect-port = full-port { yy->connectPort = yy->tmpPort; yy->connectProto = yy->tmpProto; } server-options = "[" -? option-list -? "]" option-list = option (-? ',' -? option-list)? option = (option-timeout | option-source) option-timeout = "timeout" -? "=" -? < number > { yy->serverTimeout = atoi(yytext); } option-source = "src" -? "=" -? < address > { yy->sourceAddress = strdup(yytext); } full-port = port proto port = < (number | service) > { yy->tmpPort = strdup(yytext); } proto = '/tcp' { yy->tmpProto = IPPROTO_TCP; } | '/udp' { yy->tmpProto = IPPROTO_UDP; } | '' { yy->tmpProto = IPPROTO_TCP; } auth-rule = auth-key - < pattern > { allRules = (Rule *) realloc(allRules, sizeof(Rule) * (allRulesCount + 1)); if (!allRules) { MEMORY_ERROR; } allRules[allRulesCount].pattern = strdup(yytext); if (!allRules[allRulesCount].pattern) { MEMORY_ERROR; } allRules[allRulesCount].type = yy->isAuthAllow ? allowRule : denyRule; if (seTotal > 0) { if (seInfo[seTotal - 1].rulesStart == 0) { seInfo[seTotal - 1].rulesStart = allRulesCount; } ++seInfo[seTotal - 1].rulesCount; } else { ++globalRulesCount; } ++allRulesCount; } auth-key = < ("allow" | "deny") > { yy->isAuthAllow = (yytext[0] == 'a'); } logfile = "logfile" - < filename > { logFileName = strdup(yytext); if (!logFileName) { MEMORY_ERROR; } } pidlogfile = "pidlogfile" - < filename > { pidLogFileName = strdup(yytext); if (!pidLogFileName) { MEMORY_ERROR; } } logcommon = "logcommon" { logFormatCommon = 1; } invalid_syntax = < (!eol .)+ > eol { logError("invalid syntax at line %d: %s\n", yy->currentLine, yytext); PARSE_ERROR; /* FIXME */ } service = name address = ipv4 | ipv6 | hostname pattern = (hexdigit | '[' | ']' | ':' | '.' | [*?] )+ number = digit+ ipv4 = number '.' number '.' number '.' number | '0' ipv6 = '[' bare_ipv6 ']' | bare_ipv6 bare_ipv6 = hexdigit* ':' (hexdigit | ':')* # Must have at least one ':' hostname = (label '.')* name '.'? name = id ('-' | id | digit)* label = (id | digit) ('-' | id | digit)* # DNS labels may have digits filename = '"' [^"]+ '"' | [^ \t\r\n]+ - = [ \t]+ digit = [0-9] hexdigit = [0-9a-fA-F] id = [a-zA-Z_] sol = { ++yy->currentLine; } eol = '\r'? '\n' | eof eof = '\0' %% void parseConfiguration(char const *file) { FILE *in = fopen(file, "r"); if (!in) { logError("could not open configuration file %s.\n", file); exit(1); } yycontext ctx; memset(&ctx, 0, sizeof(yycontext)); ctx.fp = in; if (!yyparse(&ctx)) { logError("invalid syntax in file %s, line %d.\n", file, -1); exit(1); } yyrelease(&ctx); fclose(in); /* Avoid warnings for these unused functions */ (void)yySet; (void)yyPush; (void)yyPop; (void)yyAccept; } rinetd-0.73/src/rinetd.c0000644060175106010010000007153614013676546014743 0ustar00samNone00000000000000/* Copyright © 1997—1999 Thomas Boutell and Boutell.Com, Inc. © 2003—2021 Sam Hocevar This software is released for free use under the terms of the GNU Public License, version 2 or higher. NO WARRANTY IS EXPRESSED OR IMPLIED. USE THIS SOFTWARE AT YOUR OWN RISK. */ #if HAVE_CONFIG_H # include #endif #ifndef RETSIGTYPE # define RETSIGTYPE void #endif #ifdef _MSC_VER # include #endif #if _WIN32 # include "getopt.h" #else # include # if TIME_WITH_SYS_TIME # include # include # elif HAVE_SYS_TIME_H # include # endif # include #endif /* _WIN32 */ #include #include #include #include #include #include #if _WIN32 || (!TIME_WITH_SYS_TIME && !HAVE_SYS_TIME_H) # include #endif #include #ifdef DEBUG # define PERROR perror #else # define PERROR(x) #endif /* DEBUG */ #include "match.h" #include "net.h" #include "types.h" #include "rinetd.h" #include "parse.h" Rule *allRules = NULL; int allRulesCount = 0; int globalRulesCount = 0; ServerInfo *seInfo = NULL; int seTotal = 0; ConnectionInfo *coInfo = NULL; int coTotal = 0; /* On Windows, the maximum number of file descriptors in an fd_set is simply FD_SETSIZE and the first argument to select() is ignored, so maxfd will never change. */ #ifdef _WIN32 int const maxfd = 0; #else int maxfd = 0; #endif /* Global static buffer for UDP data. */ static char globalUdpBuffer[65536]; char *logFileName = NULL; char *pidLogFileName = NULL; int logFormatCommon = 0; FILE *logFile = NULL; char const *logMessages[] = { "unknown-error", "done-local-closed", "done-remote-closed", "accept-failed -", "local-socket-failed -", "local-bind-failed -", "local-connect-failed -", "opened", "not-allowed", "denied", }; enum { logUnknownError = 0, logLocalClosedFirst, logRemoteClosedFirst, logAcceptFailed, logLocalSocketFailed, logLocalBindFailed, logLocalConnectFailed, logOpened, logAllowed, logNotAllowed, logDenied, }; static RinetdOptions options = { RINETD_CONFIG_FILE, 0, }; static int forked = 0; static void selectPass(void); static void handleWrite(ConnectionInfo *cnx, Socket *socket, Socket *other_socket); static void handleRead(ConnectionInfo *cnx, Socket *socket, Socket *other_socket); static void handleUdpRead(ConnectionInfo *cnx, char const *buffer, int bytes); static void handleClose(ConnectionInfo *cnx, Socket *socket, Socket *other_socket); static void handleAccept(ServerInfo const *srv); static ConnectionInfo *findAvailableConnection(void); static void setConnectionCount(int newCount); static int checkConnectionAllowed(ConnectionInfo const *cnx); static int readArgs (int argc, char **argv, RinetdOptions *options); static void clearConfiguration(void); static void readConfiguration(char const *file); static void registerPID(char const *pid_file_name); static void logEvent(ConnectionInfo const *cnx, ServerInfo const *srv, int result); static struct tm *get_gmtoff(int *tz); /* Signal handlers */ #if !HAVE_SIGACTION && !_WIN32 static RETSIGTYPE plumber(int s); #endif #if !_WIN32 static RETSIGTYPE hup(int s); #endif static RETSIGTYPE quit(int s); int main(int argc, char *argv[]) { #ifdef _WIN32 WSADATA wsaData; int result = WSAStartup(MAKEWORD(1, 1), &wsaData); if (result != 0) { fprintf(stderr, "Your computer was not connected " "to the Internet at the time that " "this program was launched, or you " "do not have a 32-bit " "connection to the Internet."); exit(1); } #else openlog("rinetd", LOG_PID, LOG_DAEMON); #endif readArgs(argc, argv, &options); if (!options.foreground) { #if HAVE_DAEMON && !DEBUG if (daemon(0, 0) != 0) { exit(0); } forked = 1; #elif HAVE_FORK && !DEBUG if (fork() != 0) { exit(0); } forked = 1; #endif } #if HAVE_SIGACTION struct sigaction act; act.sa_handler = SIG_IGN; sigemptyset(&act.sa_mask); act.sa_flags = SA_RESTART; sigaction(SIGPIPE, &act, NULL); act.sa_handler = &hup; sigaction(SIGHUP, &act, NULL); #elif !_WIN32 signal(SIGPIPE, plumber); signal(SIGHUP, hup); #endif signal(SIGINT, quit); signal(SIGTERM, quit); readConfiguration(options.conf_file); if (pidLogFileName || !options.foreground) { registerPID(pidLogFileName ? pidLogFileName : RINETD_PID_FILE); } logInfo("starting redirections...\n"); while (1) { selectPass(); } return 0; } void logError(char const *fmt, ...) { va_list ap; va_start(ap, fmt); #if !_WIN32 if (forked) vsyslog(LOG_ERR, fmt, ap); else #endif { fprintf(stderr, "rinetd error: "); vfprintf(stderr, fmt, ap); } va_end(ap); } void logInfo(char const *fmt, ...) { va_list ap; va_start(ap, fmt); #if !_WIN32 if (forked) vsyslog(LOG_INFO, fmt, ap); else #endif { fprintf(stderr, "rinetd: "); vfprintf(stderr, fmt, ap); } va_end(ap); } static void clearConfiguration(void) { /* Remove references to server information */ for (int i = 0; i < coTotal; ++i) { ConnectionInfo *cnx = &coInfo[i]; cnx->server = NULL; } /* Close existing server sockets. */ for (int i = 0; i < seTotal; ++i) { ServerInfo *srv = &seInfo[i]; if (srv->fd != INVALID_SOCKET) { closesocket(srv->fd); } free(srv->fromHost); free(srv->toHost); freeaddrinfo(srv->fromAddrInfo); freeaddrinfo(srv->toAddrInfo); if (srv->sourceAddrInfo) { freeaddrinfo(srv->sourceAddrInfo); } } /* Free memory associated with previous set. */ free(seInfo); seInfo = NULL; seTotal = 0; /* Forget existing rules. */ for (int i = 0; i < allRulesCount; ++i) { free(allRules[i].pattern); } /* Free memory associated with previous set. */ free(allRules); allRules = NULL; allRulesCount = globalRulesCount = 0; /* Free file names */ free(logFileName); logFileName = NULL; free(pidLogFileName); pidLogFileName = NULL; } static void readConfiguration(char const *file) { /* Parse the configuration file. */ parseConfiguration(file); /* Open the log file */ if (logFile) { fclose(logFile); logFile = NULL; } if (logFileName) { logFile = fopen(logFileName, "a+"); if (logFile) { setvbuf(logFile, NULL, _IONBF, 0); } else { logError("could not open %s to append (%m).\n", logFileName); } } } void addServer(char *bindAddress, char *bindPort, int bindProtocol, char *connectAddress, char *connectPort, int connectProtocol, int serverTimeout, char *sourceAddress) { ServerInfo si = { .fromHost = strdup(bindAddress), .toHost = strdup(connectAddress), .serverTimeout = serverTimeout, }; /* Make a server socket */ struct addrinfo *ai; int ret = getAddrInfoWithProto(bindAddress, bindPort, bindProtocol, &ai); if (ret != 0) { exit(1); } si.fd = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol); if (si.fd == INVALID_SOCKET) { logError("couldn't create server socket! (%m)\n"); freeaddrinfo(ai); exit(1); } int tmp = 1; setsockopt(si.fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&tmp, sizeof(tmp)); if (bind(si.fd, ai->ai_addr, ai->ai_addrlen) == SOCKET_ERROR) { logError("couldn't bind to address %s port %s (%m)\n", bindAddress, bindPort); closesocket(si.fd); freeaddrinfo(ai); exit(1); } if (bindProtocol == IPPROTO_TCP) { if (listen(si.fd, RINETD_LISTEN_BACKLOG) == SOCKET_ERROR) { /* Warn -- don't exit. */ logError("couldn't listen to address %s port %s (%m)\n", bindAddress, bindPort); /* XXX: check whether this is correct */ closesocket(si.fd); } /* Make socket nonblocking in TCP mode only, otherwise we may miss some data. */ setSocketDefaults(si.fd); } si.fromAddrInfo = ai; /* Resolve destination address. */ ret = getAddrInfoWithProto(connectAddress, connectPort, connectProtocol, &ai); if (ret != 0) { freeaddrinfo(si.fromAddrInfo); closesocket(si.fd); exit(1); } si.toAddrInfo = ai; /* Resolve source address if applicable. */ if (sourceAddress) { ret = getAddrInfoWithProto(sourceAddress, NULL, connectProtocol, &ai); if (ret != 0) { freeaddrinfo(si.fromAddrInfo); freeaddrinfo(si.toAddrInfo); exit(1); } si.sourceAddrInfo = ai; } #ifndef _WIN32 if (si.fd > maxfd) { maxfd = si.fd; } #endif /* Allocate server info */ seInfo = (ServerInfo *)realloc(seInfo, sizeof(ServerInfo) * (seTotal + 1)); if (!seInfo) { exit(1); } seInfo[seTotal] = si; ++seTotal; } static void setConnectionCount(int newCount) { if (newCount == coTotal) { return; } for (int i = newCount; i < coTotal; ++i) { if (coInfo[i].local.fd != INVALID_SOCKET) { closesocket(coInfo[i].local.fd); } if (coInfo[i].remote.fd != INVALID_SOCKET) { if (coInfo[i].remote.protocol == IPPROTO_TCP) closesocket(coInfo[i].remote.fd); } free(coInfo[i].local.buffer); } if (newCount == 0) { free(coInfo); coInfo = NULL; coTotal = 0; return; } ConnectionInfo * newCoInfo = (ConnectionInfo *) malloc(sizeof(ConnectionInfo) * newCount); if (!newCoInfo) { return; } memcpy(newCoInfo, coInfo, sizeof(ConnectionInfo) * coTotal); for (int i = coTotal; i < newCount; ++i) { ConnectionInfo *cnx = &newCoInfo[i]; memset(cnx, 0, sizeof(*cnx)); cnx->local.fd = INVALID_SOCKET; cnx->remote.fd = INVALID_SOCKET; cnx->local.buffer = (char *) malloc(sizeof(char) * 2 * RINETD_BUFFER_SIZE); if (!cnx->local.buffer) { while (i-- >= coTotal) { free(newCoInfo[i].local.buffer); } free(newCoInfo); return; } cnx->remote.buffer = cnx->local.buffer + RINETD_BUFFER_SIZE; } free(coInfo); coInfo = newCoInfo; coTotal = newCount; } static ConnectionInfo *findAvailableConnection(void) { /* Find an existing closed connection to reuse */ for (int j = 0; j < coTotal; ++j) { if (coInfo[j].local.fd == INVALID_SOCKET && coInfo[j].remote.fd == INVALID_SOCKET) { return &coInfo[j]; } } /* Allocate new connections and pick the first one */ int oldTotal = coTotal; setConnectionCount(coTotal * 4 / 3 + 8); if (coTotal == oldTotal) { logError("not enough memory to add slots. " "Currently %d slots.\n", coTotal); /* Go back to the previous total number of slots */ return NULL; } return &coInfo[oldTotal]; } static void selectPass(void) { int const fdSetCount = maxfd / FD_SETSIZE + 1; # define FD_ZERO_EXT(ar) for (int i = 0; i < fdSetCount; ++i) { FD_ZERO(&(ar)[i]); } #ifdef _WIN32 /* On Windows, only one fd_set is usable because of its structure. */ # define FD_SET_EXT(fd, ar) FD_SET(fd, &(ar)[0]) # define FD_ISSET_EXT(fd, ar) FD_ISSET(fd, &(ar)[0]) #else # define FD_SET_EXT(fd, ar) FD_SET((fd) % FD_SETSIZE, &(ar)[(fd) / FD_SETSIZE]) # define FD_ISSET_EXT(fd, ar) FD_ISSET((fd) % FD_SETSIZE, &(ar)[(fd) / FD_SETSIZE]) #endif /* Timeout value -- infinite by default */ struct timeval timeout; timeout.tv_sec = timeout.tv_usec = 0; time_t now = time(NULL); #ifdef _MSC_VER fd_set* readfds = (fd_set*)alloca(sizeof(*readfds) * fdSetCount); fd_set* writefds = (fd_set*)alloca(sizeof(*writefds) * fdSetCount); #else fd_set readfds[fdSetCount], writefds[fdSetCount]; #endif FD_ZERO_EXT(readfds); FD_ZERO_EXT(writefds); /* Server sockets */ for (int i = 0; i < seTotal; ++i) { if (seInfo[i].fd != INVALID_SOCKET) { FD_SET_EXT(seInfo[i].fd, readfds); } } /* Connection sockets */ for (int i = 0; i < coTotal; ++i) { ConnectionInfo *cnx = &coInfo[i]; if (cnx->local.fd != INVALID_SOCKET) { /* Accept more output from the local server if there's room */ if (cnx->local.recvPos < RINETD_BUFFER_SIZE) { FD_SET_EXT(cnx->local.fd, readfds); } /* Send more input to the local server if we have any, or if we’re closing */ if (cnx->local.sentPos < cnx->remote.recvPos || cnx->coClosing) { FD_SET_EXT(cnx->local.fd, writefds); } } if (cnx->remote.fd != INVALID_SOCKET) { /* Get more input if we have room for it */ if (cnx->remote.recvPos < RINETD_BUFFER_SIZE) { FD_SET_EXT(cnx->remote.fd, readfds); /* For UDP connections, we need to handle timeouts */ if (cnx->remote.protocol == IPPROTO_UDP) { long delay = (long)(cnx->remoteTimeout - now); timeout.tv_sec = delay <= 1 ? 1 : (delay < timeout.tv_sec || timeout.tv_sec == 0) ? delay : timeout.tv_sec; } } /* Send more output if we have any, or if we’re closing */ if (cnx->remote.sentPos < cnx->local.recvPos || cnx->coClosing) { FD_SET_EXT(cnx->remote.fd, writefds); } } } select(maxfd + 1, readfds, writefds, 0, timeout.tv_sec ? &timeout : NULL); for (int i = 0; i < coTotal; ++i) { ConnectionInfo *cnx = &coInfo[i]; if (cnx->remote.fd != INVALID_SOCKET) { /* Do not read on remote UDP sockets, the server does it, but handle timeouts instead. */ if (cnx->remote.protocol == IPPROTO_TCP) { if (FD_ISSET_EXT(cnx->remote.fd, readfds)) { handleRead(cnx, &cnx->remote, &cnx->local); } } else { if (now > cnx->remoteTimeout) { handleClose(cnx, &cnx->remote, &cnx->local); } } } if (cnx->remote.fd != INVALID_SOCKET) { if (FD_ISSET_EXT(cnx->remote.fd, writefds)) { handleWrite(cnx, &cnx->remote, &cnx->local); } } if (cnx->local.fd != INVALID_SOCKET) { if (FD_ISSET_EXT(cnx->local.fd, readfds)) { handleRead(cnx, &cnx->local, &cnx->remote); } } if (cnx->local.fd != INVALID_SOCKET) { if (FD_ISSET_EXT(cnx->local.fd, writefds)) { handleWrite(cnx, &cnx->local, &cnx->remote); } } } /* Handle servers last because handleAccept() may modify coTotal */ for (int i = 0; i < seTotal; ++i) { ServerInfo *srv = &seInfo[i]; if (srv->fd != INVALID_SOCKET) { if (FD_ISSET_EXT(srv->fd, readfds)) { handleAccept(srv); } } } } static void handleRead(ConnectionInfo *cnx, Socket *socket, Socket *other_socket) { if (RINETD_BUFFER_SIZE == socket->recvPos) { return; } int wanted = RINETD_BUFFER_SIZE - socket->recvPos; int got = recv(socket->fd, socket->buffer + socket->recvPos, wanted, 0); if (got < 0) { if (GetLastError() == WSAEWOULDBLOCK) { return; } if (GetLastError() == WSAEINPROGRESS) { return; } } if (got <= 0) { /* Prepare for closing */ handleClose(cnx, socket, other_socket); return; } socket->totalBytesIn += got; socket->recvPos += got; } static void handleUdpRead(ConnectionInfo *cnx, char const *buffer, int bytes) { Socket *socket = &cnx->remote; int got = bytes < RINETD_BUFFER_SIZE - socket->recvPos ? bytes : RINETD_BUFFER_SIZE - socket->recvPos; if (got > 0) { memcpy(socket->buffer + socket->recvPos, buffer, got); socket->totalBytesIn += got; socket->recvPos += got; } } static void handleWrite(ConnectionInfo *cnx, Socket *socket, Socket *other_socket) { if (cnx->coClosing && (socket->sentPos == other_socket->recvPos)) { PERROR("rinetd: local closed and no more output"); logEvent(cnx, cnx->server, cnx->coLog); if (socket->protocol == IPPROTO_TCP) closesocket(socket->fd); socket->fd = INVALID_SOCKET; return; } struct sockaddr const *addr = NULL; SOCKLEN_T addrlen = 0; if (socket->protocol == IPPROTO_UDP && socket == &cnx->remote) { addr = (struct sockaddr const*)&cnx->remoteAddress; addrlen = (SOCKLEN_T)sizeof(cnx->remoteAddress); } int wanted = other_socket->recvPos - socket->sentPos; int got = sendto(socket->fd, other_socket->buffer + socket->sentPos, wanted, 0, addr, addrlen); if (got < 0) { if (GetLastError() == WSAEWOULDBLOCK) { return; } if (GetLastError() == WSAEINPROGRESS) { return; } handleClose(cnx, socket, other_socket); return; } socket->sentPos += got; socket->totalBytesOut += got; if (got == wanted) { socket->sentPos = other_socket->recvPos = 0; } } static void handleClose(ConnectionInfo *cnx, Socket *socket, Socket *other_socket) { cnx->coClosing = 1; if (socket->protocol == IPPROTO_TCP) { /* One end fizzled out, so make sure we're all done with that */ closesocket(socket->fd); } else /* if (socket->protocol == IPPROTO_UDP) */ { /* Nothing to do in UDP mode */ } socket->fd = INVALID_SOCKET; if (other_socket->fd != INVALID_SOCKET) { if (other_socket->protocol == IPPROTO_TCP) { #if !defined __linux__ && !defined _WIN32 /* Now set up the other end for a polite closing */ /* Request a low-water mark equal to the entire output buffer, so the next write notification tells us for sure that we can close the socket. */ int arg = 1024; setsockopt(other_socket->fd, SOL_SOCKET, SO_SNDLOWAT, &arg, sizeof(arg)); #endif } else /* if (other_socket->protocol == IPPROTO_UDP) */ { if (other_socket == &cnx->local) closesocket(other_socket->fd); other_socket->fd = INVALID_SOCKET; } cnx->coLog = socket == &cnx->local ? logLocalClosedFirst : logRemoteClosedFirst; } } static void handleAccept(ServerInfo const *srv) { int udpBytes = 0; struct sockaddr_storage addr; SOCKLEN_T addrlen = sizeof(addr); SOCKET nfd; if (srv->fromAddrInfo->ai_protocol == IPPROTO_TCP) { /* In TCP mode, get remote address using accept(). */ nfd = accept(srv->fd, (struct sockaddr *)&addr, &addrlen); if (nfd == INVALID_SOCKET) { logError("accept(%llu): %m\n", (long long unsigned int)srv->fd); logEvent(NULL, srv, logAcceptFailed); return; } setSocketDefaults(nfd); } else /* if (srv->fromAddrInfo->ai_protocol == IPPROTO_UDP) */ { /* In UDP mode, get remote address using recvfrom() and check for an existing connection from this client. We need to read a lot of data otherwise the datagram contents may be lost later. */ nfd = srv->fd; SSIZE_T ret = recvfrom(nfd, globalUdpBuffer, sizeof(globalUdpBuffer), 0, (struct sockaddr *)&addr, &addrlen); if (ret < 0) { if (GetLastError() == WSAEWOULDBLOCK) { return; } if (GetLastError() == WSAEINPROGRESS) { return; } logError("recvfrom(%llu): %m\n", (long long unsigned int)srv->fd); logEvent(NULL, srv, logAcceptFailed); return; } udpBytes = (int)ret; /* Look for an existing connection with the same remote host and port. */ for (int i = 0; i < coTotal; ++i) { ConnectionInfo *cnx = &coInfo[i]; if (cnx->remote.fd == nfd && sameSocketAddress(&cnx->remoteAddress, &addr)) { cnx->remoteTimeout = time(NULL) + srv->serverTimeout; handleUdpRead(cnx, globalUdpBuffer, udpBytes); return; } } } ConnectionInfo *cnx = findAvailableConnection(); if (!cnx) { return; } cnx->local.fd = INVALID_SOCKET; cnx->local.family = srv->toAddrInfo->ai_family; cnx->local.protocol = srv->toAddrInfo->ai_protocol; cnx->local.recvPos = cnx->local.sentPos = 0; cnx->local.totalBytesIn = cnx->local.totalBytesOut = 0; cnx->remote.fd = nfd; cnx->remote.family = srv->fromAddrInfo->ai_family; cnx->remote.protocol = srv->fromAddrInfo->ai_protocol; cnx->remote.recvPos = cnx->remote.sentPos = 0; cnx->remote.totalBytesIn = cnx->remote.totalBytesOut = 0; cnx->remoteAddress = addr; if (srv->fromAddrInfo->ai_protocol == IPPROTO_UDP) cnx->remoteTimeout = time(NULL) + srv->serverTimeout; cnx->coClosing = 0; cnx->coLog = logUnknownError; cnx->server = srv; int logCode = checkConnectionAllowed(cnx); if (logCode != logAllowed) { /* Local fd is not open yet, so only close the remote socket. */ if (cnx->remote.protocol == IPPROTO_TCP) closesocket(cnx->remote.fd); cnx->remote.fd = INVALID_SOCKET; logEvent(cnx, cnx->server, logCode); return; } /* Now open a connection to the local server. This, too, is nonblocking. Why wait for anything when you don't have to? */ struct addrinfo* to = srv->toAddrInfo; cnx->local.fd = socket(to->ai_family, to->ai_socktype, to->ai_protocol); if (cnx->local.fd == INVALID_SOCKET) { logError("socket(): %m\n"); if (cnx->remote.protocol == IPPROTO_TCP) closesocket(cnx->remote.fd); cnx->remote.fd = INVALID_SOCKET; logEvent(cnx, srv, logLocalSocketFailed); return; } if (srv->toAddrInfo->ai_protocol == IPPROTO_TCP) setSocketDefaults(cnx->local.fd); /* Bind the local socket even though we use connect() later, so that we can specify a source address. */ if (srv->sourceAddrInfo) { if (bind(cnx->local.fd, srv->sourceAddrInfo->ai_addr, srv->sourceAddrInfo->ai_addrlen) == SOCKET_ERROR) { logError("bind(): %m\n"); } } if (connect(cnx->local.fd, srv->toAddrInfo->ai_addr, srv->toAddrInfo->ai_addrlen) == SOCKET_ERROR) { if ((GetLastError() != WSAEINPROGRESS) && (GetLastError() != WSAEWOULDBLOCK)) { PERROR("rinetd: connect"); closesocket(cnx->local.fd); if (cnx->remote.protocol == IPPROTO_TCP) closesocket(cnx->remote.fd); cnx->remote.fd = INVALID_SOCKET; cnx->local.fd = INVALID_SOCKET; logEvent(cnx, srv, logLocalConnectFailed); return; } } /* Send a zero-size UDP packet to simulate a connection */ if (srv->toAddrInfo->ai_protocol == IPPROTO_UDP) { int got = sendto(cnx->local.fd, NULL, 0, 0, srv->toAddrInfo->ai_addr, srv->toAddrInfo->ai_addrlen); /* FIXME: we ignore errors here... is it safe? */ (void)got; } /* Send UDP data to the other socket */ if (srv->fromAddrInfo->ai_protocol == IPPROTO_UDP) { handleUdpRead(cnx, globalUdpBuffer, udpBytes); } #ifndef _WIN32 if (cnx->local.fd > maxfd) { maxfd = cnx->local.fd; } if (cnx->remote.fd > maxfd) { maxfd = cnx->remote.fd; } #endif /* _WIN32 */ logEvent(cnx, srv, logOpened); } static int checkConnectionAllowed(ConnectionInfo const *cnx) { ServerInfo const *srv = cnx->server; char addressText[NI_MAXHOST]; getnameinfo((struct sockaddr *)&cnx->remoteAddress, sizeof(cnx->remoteAddress), addressText, sizeof(addressText), NULL, 0, NI_NUMERICHOST); /* 1. Check global allow rules. If there are no global allow rules, it's presumed OK at this step. If there are any, and it doesn't match at least one, kick it out. */ int good = 1; for (int j = 0; j < globalRulesCount; ++j) { if (allRules[j].type == allowRule) { good = 0; if (match(addressText, allRules[j].pattern)) { good = 1; break; } } } if (!good) { return logNotAllowed; } /* 2. Check global deny rules. If it matches any of the global deny rules, kick it out. */ for (int j = 0; j < globalRulesCount; ++j) { if (allRules[j].type == denyRule && match(addressText, allRules[j].pattern)) { return logDenied; } } /* 3. Check allow rules specific to this forwarding rule. If there are none, it's OK. If there are any, it must match at least one. */ good = 1; for (int j = 0; j < srv->rulesCount; ++j) { if (allRules[srv->rulesStart + j].type == allowRule) { good = 0; if (match(addressText, allRules[srv->rulesStart + j].pattern)) { good = 1; break; } } } if (!good) { return logNotAllowed; } /* 4. Check deny rules specific to this forwarding rule. If it matches any of the deny rules, kick it out. */ for (int j = 0; j < srv->rulesCount; ++j) { if (allRules[srv->rulesStart + j].type == denyRule && match(addressText, allRules[srv->rulesStart + j].pattern)) { return logDenied; } } return logAllowed; } #if !HAVE_SIGACTION && !_WIN32 RETSIGTYPE plumber(int s) { /* Just reinstall */ signal(SIGPIPE, plumber); } #endif #if !_WIN32 RETSIGTYPE hup(int s) { (void)s; logInfo("received SIGHUP, reloading configuration...\n"); /* Learn the new rules */ clearConfiguration(); readConfiguration(options.conf_file); #if !HAVE_SIGACTION /* And reinstall the signal handler */ signal(SIGHUP, hup); #endif } #endif /* _WIN32 */ RETSIGTYPE quit(int s) { (void)s; /* Obey the request, but first flush the log */ if (logFile) { fclose(logFile); } /* ...and get rid of memory allocations */ setConnectionCount(0); clearConfiguration(); exit(0); } void registerPID(char const *pid_file_name) { #if defined(__linux__) FILE *pid_file = fopen(pid_file_name, "w"); if (pid_file == NULL) { /* non-fatal, non-Linux may lack /var/run... */ goto error; } else { fprintf(pid_file, "%d\n", getpid()); /* errors aren't fatal */ if (fclose(pid_file)) goto error; } return; error: logError("couldn't write to %s. PID was not logged (%m).\n", pid_file_name); #else /* add other systems with wherever they register processes */ (void)pid_file_name; #endif } static void logEvent(ConnectionInfo const *cnx, ServerInfo const *srv, int result) { /* Bit of borrowing from Apache logging module here, thanks folks */ int timz; char tstr[1024]; char addressText[NI_MAXHOST] = { '?' }; struct tm *t = get_gmtoff(&timz); char sign = (timz < 0 ? '-' : '+'); if (timz < 0) { timz = -timz; } strftime(tstr, sizeof(tstr), "%d/%b/%Y:%H:%M:%S ", t); int64_t bytesOut = 0, bytesIn = 0; if (cnx != NULL) { getnameinfo((struct sockaddr *)&cnx->remoteAddress, sizeof(cnx->remoteAddress), addressText, sizeof(addressText), NULL, 0, NI_NUMERICHOST); bytesOut = cnx->remote.totalBytesOut; bytesIn = cnx->remote.totalBytesIn; } char const *fromHost = "?", *toHost = "?"; uint16_t fromPort = 0, toPort = 0; if (srv != NULL) { fromHost = srv->fromHost; fromPort = getPort(srv->fromAddrInfo); toHost = srv->toHost; toPort = getPort(srv->toAddrInfo); } if (result==logNotAllowed || result==logDenied) logInfo("%s %s\n" , addressText , logMessages[result]); if (logFile) { if (logFormatCommon) { /* Fake a common log format log file in a way that most web analyzers can do something interesting with. We lie and say the protocol is HTTP because we don't want the web analyzer to reject the line. We also lie and claim success (code 200) because we don't want the web analyzer to ignore the line as an error and not analyze the "URL." We put a result message into our "URL" instead. The last field is an extra, giving the number of input bytes, after several placeholders meant to fill the positions frequently occupied by user agent, referrer, and server name information. */ fprintf(logFile, "%s - - " "[%s %c%.2d%.2d] " "\"GET /rinetd-services/%s/%d/%s/%d/%s HTTP/1.0\" " "200 %llu - - - %llu\n", addressText, tstr, sign, timz / 60, timz % 60, fromHost, (int)fromPort, toHost, (int)toPort, logMessages[result], (unsigned long long int)bytesOut, (unsigned long long int)bytesIn); } else { /* Write an rinetd-specific log entry with a less goofy format. */ fprintf(logFile, "%s\t%s\t%s\t%d\t%s\t%d\t%llu" "\t%llu\t%s\n", tstr, addressText, fromHost, (int)fromPort, toHost, (int)toPort, (unsigned long long int)bytesIn, (unsigned long long int)bytesOut, logMessages[result]); } } } static int readArgs (int argc, char **argv, RinetdOptions *options) { for (;;) { int option_index = 0; static struct option long_options[] = { {"conf-file", 1, 0, 'c'}, {"foreground", 0, 0, 'f'}, {"help", 0, 0, 'h'}, {"version", 0, 0, 'v'}, {0, 0, 0, 0} }; int c = getopt_long (argc, argv, "c:fshv", long_options, &option_index); if (c == -1) { break; } switch (c) { case 'c': options->conf_file = optarg; if (!options->conf_file) { fprintf(stderr, "Not enough memory to " "launch rinetd.\n"); exit(1); } break; case 'f': options->foreground = 1; break; case 'h': printf("Usage: rinetd [OPTION]\n" " -c, --conf-file FILE read configuration " "from FILE\n" " -f, --foreground do not run in the " "background\n" " -h, --help display this help\n" " -v, --version display version " "number\n\n"); printf("Most options are controlled through the\n" "configuration file. See the rinetd(8)\n" "manpage for more information.\n"); exit (0); case 'v': printf ("rinetd %s\n", PACKAGE_VERSION); exit (0); case '?': default: exit (1); } } return 0; } /* get_gmtoff was borrowed from Apache. Thanks folks. */ static struct tm *get_gmtoff(int *tz) { time_t tt = time(NULL); /* Assume we are never more than 24 hours away. */ struct tm gmt = *gmtime(&tt); /* remember gmtime/localtime return ptr to static */ struct tm *t = localtime(&tt); /* buffer... so be careful */ int days = t->tm_yday - gmt.tm_yday; int hours = ((days < -1 ? 24 : 1 < days ? -24 : days * 24) + t->tm_hour - gmt.tm_hour); int minutes = hours * 60 + t->tm_min - gmt.tm_min; *tz = minutes; return t; } rinetd-0.73/src/rinetd.h0000644060175106010010000000233114013666774014735 0ustar00samNone00000000000000/* Copyright © 1997—1999 Thomas Boutell and Boutell.Com, Inc. © 2003—2021 Sam Hocevar This software is released for free use under the terms of the GNU Public License, version 2 or higher. NO WARRANTY IS EXPRESSED OR IMPLIED. USE THIS SOFTWARE AT YOUR OWN RISK. */ #pragma once #include /* Constants */ static int const RINETD_BUFFER_SIZE = 16384; static int const RINETD_LISTEN_BACKLOG = 128; static int const RINETD_DEFAULT_UDP_TIMEOUT = 72; #define RINETD_CONFIG_FILE "/etc/rinetd.conf" #define RINETD_PID_FILE "/var/run/rinetd.pid" /* Global configuration */ extern Rule *allRules; extern int allRulesCount; extern int globalRulesCount; extern ServerInfo *seInfo; extern int seTotal; extern char *logFileName; extern char *pidLogFileName; extern int logFormatCommon; extern FILE *logFile; /* Functions */ void logError(char const *fmt, ...); void logInfo(char const *fmt, ...); void addServer(char *bindAddress, char *bindPort, int bindProtocol, char *connectAddress, char *connectPort, int connectProtocol, int serverTimeout, char *sourceAddress); rinetd-0.73/src/types.h0000644060175106010010000000343714012201201014565 0ustar00samNone00000000000000/* Copyright © 1997—1999 Thomas Boutell and Boutell.Com, Inc. © 2003—2021 Sam Hocevar This software is released for free use under the terms of the GNU Public License, version 2 or higher. NO WARRANTY IS EXPRESSED OR IMPLIED. USE THIS SOFTWARE AT YOUR OWN RISK. */ #pragma once #include #include typedef enum _rule_type ruleType; enum _rule_type { allowRule, denyRule, }; typedef struct _rule Rule; struct _rule { char *pattern; ruleType type; }; typedef struct _server_info ServerInfo; struct _server_info { SOCKET fd; /* In network order, for network purposes */ struct addrinfo *fromAddrInfo, *toAddrInfo, *sourceAddrInfo; /* In ASCII, for logging purposes */ char *fromHost, *toHost; /* Offset and count into list of allow and deny rules. Any rules prior to globalAllowRules and globalDenyRules are global rules. */ int rulesStart, rulesCount; /* Timeout for UDP traffic before we consider the connection was dropped by the remote host. */ int serverTimeout; }; typedef struct _socket Socket; struct _socket { SOCKET fd; int family, protocol; /* recv: received on this socket sent: sent through this socket from the other buffer */ int recvPos, sentPos; uint64_t totalBytesIn, totalBytesOut; char *buffer; }; typedef struct _connection_info ConnectionInfo; struct _connection_info { Socket remote, local; struct sockaddr_storage remoteAddress; time_t remoteTimeout; int coClosing; int coLog; ServerInfo const *server; // only useful for logEvent }; /* Option parsing */ typedef struct _rinetd_options RinetdOptions; struct _rinetd_options { char const *conf_file; int foreground; };