ident2-v1.07_FINAL/0000755000175000001440000000000010270200701010707 500000000000000ident2-v1.07_FINAL/sys/0000755000175000001440000000000010270200404011525 500000000000000ident2-v1.07_FINAL/sys/m_fbsd.c0000644000175000001440000001026610270200404013050 00000000000000/* * Ident-2 - an Identity server for UNIX * Copyright (C) 1998-2001 Michael Bacarella * Copyright (C) 2003 Netgraft Corporation * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * Please view the file README for program information. * * Support for FreeBSD machine dependancies */ /* * NOTE: This supports only FreeBSD versions greater than 3.0! * I do not deem versions less than 3.0 as worth supporting * because it requires more code as well as decreased security * for this ident server to function. */ #include "ident2.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define TCPSTATES #include #include #include #include #include #include #define PID_FILE "/var/run/ident2.pid" /** ** drop to the lowest permission level ** possible. 'nobody' is ideal for FreeBSD **/ int m_reduce_rights (void) { struct passwd *pw; if ((geteuid() && getuid()) || Dont_Change_Uid == TRUE) return 0; if ((pw = getpwnam ("nobody")) == NULL) { syslog (LOG_ERR, "error: getpwnam(nobody): %s", strerror (errno)); return -1; } if (setuid (pw->pw_uid) == -1) { syslog (LOG_ERR, "error: setuid(%d): %s", pw->pw_uid, strerror (errno)); return -1; } return 0; } /** ** find what user belongs to the connection ** described by LPORT, RPORT, RADDR, and LADDR. ** return the uid. **/ int m_get_uid (struct in_addr *laddr, u_short lp, struct in_addr *raddr, u_short rp) { char *mibvar = "net.inet.tcp.pcblist"; char *buf; struct tcpcb *tp; struct inpcb *inp; struct xinpgen *xig, *oxig; struct xsocket *so; size_t len; if (sysctlbyname (mibvar, 0, &len, 0, 0) < 0) { syslog (LOG_WARNING, "sysctl: %s: %s\n", mibvar, strerror (errno)); return -1; } buf = xmalloc (len); if (sysctlbyname (mibvar, buf, &len, 0, 0) < 0) { syslog (LOG_WARNING, "sysctl: %s: %s\n", mibvar, strerror (errno)); free (buf); return -1; } oxig = xig = (struct xinpgen *)buf; for (xig = (struct xinpgen *)((char *)xig + xig->xig_len); xig->xig_len > sizeof(struct xinpgen); xig = (struct xinpgen *)((char *)xig + xig->xig_len)) { tp = &((struct xtcpcb *)xig)->xt_tp; inp = &((struct xtcpcb *)xig)->xt_inp; so = &((struct xtcpcb *)xig)->xt_socket; if (so->xso_protocol != IPPROTO_TCP) continue; if (inp->inp_gencnt > oxig->xig_gen) continue; if (inet_lnaof(inp->inp_laddr) == INADDR_ANY) continue; if ((raddr->s_addr) == inp->inp_faddr.s_addr && (laddr->s_addr) == inp->inp_laddr.s_addr && rp == ntohs (inp->inp_fport) && lp == ntohs (inp->inp_lport)) { int uid = so->so_uid; free (buf); return uid; } } free (buf); return -1; } /* * FreeBSD seems to like recording this information * to /var/run. Good. nice and standard. * PID support suggested (and previously implemented) * by Alexander Reelsen. */ int m_register_pid (void) { #ifdef HAS_VAR_RUN FILE *fp; if ((fp = fopen (PID_FILE, "w")) == NULL) { syslog (LOG_WARNING, "couldn't record pid in %s: %s -- " "automatic shutdown with system not available", PID_FILE, strerror (errno)); return -1; } fprintf (fp, "%u\n", getpid ()); fclose (fp); #endif return 0; } ident2-v1.07_FINAL/sys/m_linux.c0000644000175000001440000000614110270200404013266 00000000000000/* * Ident-2 - an Identity server for UNIX * Copyright (C) 1998-2001 Michael Bacarella * Copyright (C) 2003 Netgraft Corporation * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * Please view the file README for program information. */ /* * Support for Linux machine dependancies */ #include "ident2.h" #define PID_FILE "/var/run/ident2.pid" /** ** drop to the lowest permission level ** possible. 'nobody' is ideal for linux **/ int m_reduce_rights (void) { struct passwd *pw; if ((geteuid() && getuid()) || Dont_Change_Uid == TRUE) return 0; if ((pw = getpwnam ("nobody")) == NULL) { syslog (LOG_ERR, "error: getpwnam(nobody): %s", strerror (errno)); return -1; } if (setuid (pw->pw_uid) == -1) { syslog (LOG_ERR, "error: setuid(%d): %s", pw->pw_uid, strerror (errno)); return -1; } return 0; } /** ** find what user belongs to the connection ** described by LPORT, RPORT, RADDR, and LADDR. ** return the uid. **/ int m_get_uid (struct in_addr *laddr, u_short lp, struct in_addr *raddr, u_short rp) { FILE *fp; char buf[150]; if ((fp = fopen ("/proc/net/tcp", "r")) == NULL) { syslog (LOG_ERR, "error reading /proc/net/tcp: %s", strerror (errno)); return -1; } fgets (buf, 149, fp); /* eat header!)*$ */ while (fgets (buf, 149, fp)) { unsigned long local_addr, remote_addr; unsigned long tx_queue, rx_queue, tm_when; int sl, uid, retrnsmt, st, tr, local_port, remote_port; if (sscanf (buf, "%d: %lX:%x %lX:%x %x %lX:%lX %x:%lX %x %d", &sl, &local_addr, &local_port, &remote_addr, &remote_port, &st, &tx_queue, &rx_queue, &tr, &tm_when, &retrnsmt, &uid) == 12) { if (lp == local_port && rp == remote_port && remote_addr == raddr->s_addr) { if (laddr == NULL) { fclose (fp); return uid; } else if (laddr->s_addr == local_addr) { fclose (fp); return uid; } } } } fclose (fp); return -1; } /* * records the pid for service management purposes. * example: under Red Hat,Debian,etc pid is written to * /var/run/identd.pid * PID support suggested (and previously implemented) * by Alexander Reelsen. */ int m_register_pid (void) { #ifdef HAS_VAR_RUN FILE *fp; if ((fp = fopen (PID_FILE, "w")) == NULL) { syslog (LOG_WARNING, "couldn't record pid in %s: %s -- " "automatic shutdown with system not available", PID_FILE, strerror (errno)); return -1; } fprintf (fp, "%u\n", getpid ()); fclose (fp); #endif return 0; } ident2-v1.07_FINAL/sys/m_lsof.c0000644000175000001440000000612010226227125013101 00000000000000/* * Ident-2 - an Identity server for UNIX * Copyright (C) 1998-2001 Michael Bacarella * Copyright (C) 2003 Netgraft Corporation * Copyright (C) 2005 Greg Schenzel * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * Please view the file README for program information. */ /* * Support for all OSes with lsof installed. * Added 3/27/05 by Greg Schenzel (inittab@netizenweb.com) */ #include "ident2.h" #define PID_FILE "/var/run/ident2.pid" /** ** drop to the lowest permission level ** possible. 'nobody' is ideal for most **/ int m_reduce_rights (void) { struct passwd *pw; if ((geteuid() && getuid()) || Dont_Change_Uid == TRUE) return 0; if ((pw = getpwnam ("nobody")) == NULL) { syslog (LOG_ERR, "error: getpwnam(nobody): %s", strerror (errno)); return -1; } if (setuid (pw->pw_uid) == -1) { syslog (LOG_ERR, "error: setuid(%d): %s", pw->pw_uid, strerror (errno)); return -1; } return 0; } /** ** find what user belongs to the connection ** described by LPORT, RPORT, RADDR, and LADDR. ** return the uid. **/ int m_get_uid (struct in_addr *laddr, u_short lp, struct in_addr *raddr, u_short rp) { FILE *fp; char cmd[256]; //check for overflow unsigned char *locad = (unsigned char *)&(laddr->s_addr); unsigned char *remad = (unsigned char *)&(raddr->s_addr); int uid, pid; char concmd[45]; sprintf(cmd, "%s -i @%hhu.%hhu.%hhu.%hhu:%hu -n -l -P | grep %hhu.%hhu.%hhu.%hhu:%hu", LSOF_LOCATION, locad[0], locad[1], locad[2], locad[3], lp, remad[0], remad[1], remad[2], remad[3], rp); // syslog(LOG_ERR, "about to run: %s", cmd); if ((fp = popen (cmd, "r")) == NULL) { syslog (LOG_ERR, "error reading from lsof: %s", strerror (errno)); return -1; } //concmd and pid are useless placeholders for us. ignore the rest if (fscanf(fp, "%s %d %d", concmd, &pid, &uid) < 1) { uid = -1; } pclose(fp); return uid; } /* * records the pid for service management purposes. * example: under Red Hat,Debian,etc pid is written to * /var/run/identd.pid * PID support suggested (and previously implemented) * by Alexander Reelsen. */ int m_register_pid (void) { #ifdef HAS_VAR_RUN FILE *fp; if ((fp = fopen (PID_FILE, "w")) == NULL) { syslog (LOG_WARNING, "couldn't record pid in %s: %s -- " "automatic shutdown with system not available", PID_FILE, strerror (errno)); return -1; } fprintf (fp, "%u\n", (unsigned int)getpid()); fclose (fp); #endif return 0; } ident2-v1.07_FINAL/util/0000755000175000001440000000000010270200404011664 500000000000000ident2-v1.07_FINAL/util/install.sh0000755000175000001440000001106510270200404013614 00000000000000#!/bin/sh # # install - install a program, script, or datafile # This comes from X11R5. # # $XConsortium: install.sh,v 1.2 89/12/18 14:47:22 jim Exp $ # # This script is compatible with the BSD install script, but was written # from scratch. # # set DOITPROG to echo to test this script # Don't use :- since 4.3BSD and earlier shells don't like it. doit="${DOITPROG-}" # put in absolute paths if you don't have them in your path; or use env. vars. mvprog="${MVPROG-mv}" cpprog="${CPPROG-cp}" chmodprog="${CHMODPROG-chmod}" chownprog="${CHOWNPROG-chown}" chgrpprog="${CHGRPPROG-chgrp}" stripprog="${STRIPPROG-strip}" rmprog="${RMPROG-rm}" mkdirprog="${MKDIRPROG-mkdir}" tranformbasename="" transform_arg="" instcmd="$mvprog" chmodcmd="$chmodprog 0755" chowncmd="" chgrpcmd="" stripcmd="" rmcmd="$rmprog -f" mvcmd="$mvprog" src="" dst="" dir_arg="" while [ x"$1" != x ]; do case $1 in -c) instcmd="$cpprog" shift continue;; -d) dir_arg=true shift continue;; -m) chmodcmd="$chmodprog $2" shift shift continue;; -o) chowncmd="$chownprog $2" shift shift continue;; -g) chgrpcmd="$chgrpprog $2" shift shift continue;; -s) stripcmd="$stripprog" shift continue;; -t=*) transformarg=`echo $1 | sed 's/-t=//'` shift continue;; -b=*) transformbasename=`echo $1 | sed 's/-b=//'` shift continue;; *) if [ x"$src" = x ] then src=$1 else # this colon is to work around a 386BSD /bin/sh bug : dst=$1 fi shift continue;; esac done if [ x"$src" = x ] then echo "install: no input file specified" exit 1 else true fi if [ x"$dir_arg" != x ]; then dst=$src src="" if [ -d $dst ]; then instcmd=: else instcmd=mkdir fi else # Waiting for this to be detected by the "$instcmd $src $dsttmp" command # might cause directories to be created, which would be especially bad # if $src (and thus $dsttmp) contains '*'. if [ -f $src -o -d $src ] then true else echo "install: $src does not exist" exit 1 fi if [ x"$dst" = x ] then echo "install: no destination specified" exit 1 else true fi # If destination is a directory, append the input filename; if your system # does not like double slashes in filenames, you may need to add some logic if [ -d $dst ] then dst="$dst"/`basename $src` else true fi fi ## this sed command emulates the dirname command dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'` # Make sure that the destination directory exists. # this part is taken from Noah Friedman's mkinstalldirs script # Skip lots of stat calls in the usual case. if [ ! -d "$dstdir" ]; then defaultIFS=' ' IFS="${IFS-${defaultIFS}}" oIFS="${IFS}" # Some sh's can't handle IFS=/ for some reason. IFS='%' set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'` IFS="${oIFS}" pathcomp='' while [ $# -ne 0 ] ; do pathcomp="${pathcomp}${1}" shift if [ ! -d "${pathcomp}" ] ; then $mkdirprog "${pathcomp}" else true fi pathcomp="${pathcomp}/" done fi if [ x"$dir_arg" != x ] then $doit $instcmd $dst && if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi && if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi && if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi && if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi else # If we're going to rename the final executable, determine the name now. if [ x"$transformarg" = x ] then dstfile=`basename $dst` else dstfile=`basename $dst $transformbasename | sed $transformarg`$transformbasename fi # don't allow the sed command to completely eliminate the filename if [ x"$dstfile" = x ] then dstfile=`basename $dst` else true fi # Make a temp file name in the proper directory. dsttmp=$dstdir/#inst.$$# # Move or copy the file name to the temp name $doit $instcmd $src $dsttmp && trap "rm -f ${dsttmp}" 0 && # and set any options; do chmod last to preserve setuid bits # If any of these fail, we abort the whole thing. If we want to # ignore errors from any of these, just make sure not to ignore # errors from the above "$doit $instcmd $src $dsttmp" command. if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi && if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi && if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi && if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi && # Now rename the file to the real destination. $doit $rmcmd -f $dstdir/$dstfile && $doit $mvcmd $dsttmp $dstdir/$dstfile fi && exit 0 ident2-v1.07_FINAL/util/mkinstalldirs0000755000175000001440000000133410270200404014413 00000000000000#! /bin/sh # mkinstalldirs --- make directory hierarchy # Author: Noah Friedman # Created: 1993-05-16 # Public domain # $Id: mkinstalldirs,v 1.10 1996/05/03 07:37:52 friedman Exp $ errstatus=0 for file do set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'` shift pathcomp= for d do pathcomp="$pathcomp$d" case "$pathcomp" in -* ) pathcomp=./$pathcomp ;; esac if test ! -d "$pathcomp"; then echo "mkdir $pathcomp" 1>&2 mkdir "$pathcomp" || lasterr=$? if test ! -d "$pathcomp"; then errstatus=$lasterr fi fi pathcomp="$pathcomp/" done done exit $errstatus # mkinstalldirs ends here ident2-v1.07_FINAL/README0000600000175000001440000001160510270200404011502 00000000000000 Seek to the section ``INSTALLATION'' if you want the quickie. PROJECT OVERVIEW I started ident2 awhile ago for several reasons. A: I needed something to do. B: I wanted to make my reply something other than my generic UNIX username, for IRC chaos, I guess. C: I needed the practice. D: I wanted to contribute to the community! I've since grown weary of meddling with this server. After the second rewrite between a feature incorporation blitz and a minimalization streak, I've decided to move on. I'll still add bug fixes and address any security concerns, however. TERMS OF USE Ident2 is provided under the GNU General Public License. This license can be viewed in the included 'COPYING' file or found at http://www.gnu.org/ PLANNED PORTS I am very much in favor of porting this server. I have hopefully complied with POSIX well enough to make it reasonably simple. Writing ports should be a no brainer as far as writing actual code goes. The only parts that need implementing are the three m_* functions listed in the MACHINE section in ident2.h Ident2 was developed under Linux and has been ported to FreeBSD. Also, I'm temporarily using snprintf as a security precaution. This is not portable. I will fix this when I come to an OS that does not implement snprintf. PORT NOTES The FreeBSD port will probably only compile under FreeBSD 3.x and up. The Linux version was tested only on 2.2.x CONTRIBUTIONS Hans Chr. Saustrup, Aarhus, Denmark hc@saustrup.dk / neurox [#danmark/ircnet] fixing lots of my silly bugs. Alexander Reelsen Working with me to get it included in the Debian Project. Ilya Novoselov For fixing and reporting a bug in m_get_uid() under FreeBSD (how embarassing) GETTING http://m.bacarella.com/ INSTALLATION Check define.h first for things you might be interested in toggling. ./configure make make install If the script fails, your system is probably not supported or you have a buggered install. I could've also screwed up. If you think it's MY fault, e-mail me. (seek to the section CONTACT, below) The server should install to /usr/local/sbin/ident2 Start the server from the command line (as root), or go right ahead and add it to /etc/inetd.conf if you're too cool for your own good. If you have no idea how to do this, please read the man page. ``man inetd.conf'' works nicely. Here is what you might use: auth stream tcp nowait root /usr/local/sbin/ident2 ident2 Yes, these fields are deliciously tab seperated. If inetd.conf has no idea what 'auth' is, make sure it appears in /etc/services. If not, well, you're going to learn how to do two new things today. Feel free to also spawn ident2 with tcp wrappers. It shouldn't mind. If you're sick of the damned thing, you can uninstall it by doing: make uninstall Be sure to remove it from inetd.conf if necessary. COMMAND LINE PARAMETERS Ident2 supports "standard" command line parameters as well as the GNU long command-line options. ident2 will provide a list of command line parameters if you invoke it with --help IP MASQUERADING NOTES IP Masquerading support was removed. I do not feel that I can implement it without disgustifying my code, but furthermore, I don't have the time/patience to make it work. You can essentially achieve the same results by telling ident2 to simply send random replies to all requests. CONFIGURING REPLIES By default, without any command line options, ident2 should be fully usable in production environments that require user accountability. Divergence from the RFC is only achieved by command line parameters that tell it to do so. In short, if you're looking for a drop in replacement, just start ident2 from the command line (as root) with nothing else. If you're wondering how to set your own ident replies, merely create a file .ident in your home directory and do the following: echo 'ident spanky' > ~/.ident Start ident2 with the '-i' option. You may of course, replace 'spanky' with whatever your preffered ident reply might be. Also note. If a user has the file ``.noident'' in their directory, replies will be disabled. You must start the server with '-n' if you want this feature. MODES OF OPERATION Ident2 has two modes of operation. inetd child, or standalone daemon. The inetd child itself, never forks. The daemon fork()s on every accepted connection. Whatever the mode, execution must trickle down to the nexus if anything useful is supposed to happen. The function nexus() is basically where the logic occurs and the reply is decided on and dispatched. CONTACT Michael Bacarella http://m.bacarella.com/ http://netgraft.com/ MISC. COMMENTS As the GNU GPL says, this code is provided without warranty. Michael Bacarella II - mbac@netgraft.com 11/02/03 - 16:23PM - New York. ident2-v1.07_FINAL/configure0000755000175000001440000041646010226231013012552 00000000000000#! /bin/sh # Guess values for system-dependent variables and create Makefiles. # Generated by GNU Autoconf 2.59. # # Copyright (C) 2003 Free Software Foundation, Inc. # This configure script is free software; the Free Software Foundation # gives unlimited permission to copy, distribute and modify it. ## --------------------- ## ## M4sh Initialization. ## ## --------------------- ## # Be Bourne compatible if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then emulate sh NULLCMD=: # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which # is contrary to our usage. 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then ac_cv_prog_CC="$CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_CC="${ac_tool_prefix}gcc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then echo "$as_me:$LINENO: result: $CC" >&5 echo "${ECHO_T}$CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi fi if test -z "$ac_cv_prog_CC"; then ac_ct_CC=$CC # Extract the first word of "gcc", so it can be a program name with args. set dummy gcc; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_ac_ct_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$ac_ct_CC"; then ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. else as_save_IFS=$IFS; 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IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_CC="${ac_tool_prefix}cc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then echo "$as_me:$LINENO: result: $CC" >&5 echo "${ECHO_T}$CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi fi if test -z "$ac_cv_prog_CC"; then ac_ct_CC=$CC # Extract the first word of "cc", so it can be a program name with args. set dummy cc; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_ac_ct_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$ac_ct_CC"; then ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_CC="cc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi ac_ct_CC=$ac_cv_prog_ac_ct_CC if test -n "$ac_ct_CC"; then echo "$as_me:$LINENO: result: $ac_ct_CC" >&5 echo "${ECHO_T}$ac_ct_CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi CC=$ac_ct_CC else CC="$ac_cv_prog_CC" fi fi if test -z "$CC"; then # Extract the first word of "cc", so it can be a program name with args. set dummy cc; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else ac_prog_rejected=no as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then ac_prog_rejected=yes continue fi ac_cv_prog_CC="cc" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done if test $ac_prog_rejected = yes; then # We found a bogon in the path, so make sure we never use it. set dummy $ac_cv_prog_CC shift if test $# != 0; then # We chose a different compiler from the bogus one. # However, it has the same basename, so the bogon will be chosen # first if we set CC to just the basename; use the full file name. shift ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" fi fi fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then echo "$as_me:$LINENO: result: $CC" >&5 echo "${ECHO_T}$CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi fi if test -z "$CC"; then if test -n "$ac_tool_prefix"; then for ac_prog in cl do # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. set dummy $ac_tool_prefix$ac_prog; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_CC="$ac_tool_prefix$ac_prog" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then echo "$as_me:$LINENO: result: $CC" >&5 echo "${ECHO_T}$CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi test -n "$CC" && break done fi if test -z "$CC"; then ac_ct_CC=$CC for ac_prog in cl do # Extract the first word of "$ac_prog", so it can be a program name with args. set dummy $ac_prog; ac_word=$2 echo "$as_me:$LINENO: checking for $ac_word" >&5 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 if test "${ac_cv_prog_ac_ct_CC+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if test -n "$ac_ct_CC"; then ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_CC="$ac_prog" echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done fi fi ac_ct_CC=$ac_cv_prog_ac_ct_CC if test -n "$ac_ct_CC"; then echo "$as_me:$LINENO: result: $ac_ct_CC" >&5 echo "${ECHO_T}$ac_ct_CC" >&6 else echo "$as_me:$LINENO: result: no" >&5 echo "${ECHO_T}no" >&6 fi test -n "$ac_ct_CC" && break done CC=$ac_ct_CC fi fi test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH See \`config.log' for more details." >&5 echo "$as_me: error: no acceptable C compiler found in \$PATH See \`config.log' for more details." >&2;} { (exit 1); exit 1; }; } # Provide some information about the compiler. echo "$as_me:$LINENO:" \ "checking for C compiler version" >&5 ac_compiler=`set X $ac_compile; echo $2` { (eval echo "$as_me:$LINENO: \"$ac_compiler --version &5\"") >&5 (eval $ac_compiler --version &5) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } { (eval echo "$as_me:$LINENO: \"$ac_compiler -v &5\"") >&5 (eval $ac_compiler -v &5) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } { (eval echo "$as_me:$LINENO: \"$ac_compiler -V &5\"") >&5 (eval $ac_compiler -V &5) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ int main () { ; return 0; } _ACEOF ac_clean_files_save=$ac_clean_files ac_clean_files="$ac_clean_files a.out a.exe b.out" # Try to create an executable without -o first, disregard a.out. # It will help us diagnose broken compilers, and finding out an intuition # of exeext. echo "$as_me:$LINENO: checking for C compiler default output file name" >&5 echo $ECHO_N "checking for C compiler default output file name... $ECHO_C" >&6 ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'` if { (eval echo "$as_me:$LINENO: \"$ac_link_default\"") >&5 (eval $ac_link_default) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; then # Find the output, starting from the most likely. This scheme is # not robust to junk in `.', hence go to wildcards (a.*) only as a last # resort. # Be careful to initialize this variable, since it used to be cached. # Otherwise an old cache value of `no' led to `EXEEXT = no' in a Makefile. ac_cv_exeext= # b.out is created by i960 compilers. for ac_file in a_out.exe a.exe conftest.exe a.out conftest a.* conftest.* b.out do test -f "$ac_file" || continue case $ac_file in *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) ;; conftest.$ac_ext ) # This is the source file. ;; [ab].out ) # We found the default executable, but exeext='' is most # certainly right. break;; *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` # FIXME: I believe we export ac_cv_exeext for Libtool, # but it would be cool to find out if it's true. Does anybody # maintain Libtool? --akim. export ac_cv_exeext break;; * ) break;; esac done else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 { { echo "$as_me:$LINENO: error: C compiler cannot create executables See \`config.log' for more details." >&5 echo "$as_me: error: C compiler cannot create executables See \`config.log' for more details." >&2;} { (exit 77); exit 77; }; } fi ac_exeext=$ac_cv_exeext echo "$as_me:$LINENO: result: $ac_file" >&5 echo "${ECHO_T}$ac_file" >&6 # Check the compiler produces executables we can run. If not, either # the compiler is broken, or we cross compile. echo "$as_me:$LINENO: checking whether the C compiler works" >&5 echo $ECHO_N "checking whether the C compiler works... $ECHO_C" >&6 # FIXME: These cross compiler hacks should be removed for Autoconf 3.0 # If not cross compiling, check that we can run a simple program. if test "$cross_compiling" != yes; then if { ac_try='./$ac_file' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then cross_compiling=no else if test "$cross_compiling" = maybe; then cross_compiling=yes else { { echo "$as_me:$LINENO: error: cannot run C compiled programs. If you meant to cross compile, use \`--host'. See \`config.log' for more details." >&5 echo "$as_me: error: cannot run C compiled programs. If you meant to cross compile, use \`--host'. See \`config.log' for more details." >&2;} { (exit 1); exit 1; }; } fi fi fi echo "$as_me:$LINENO: result: yes" >&5 echo "${ECHO_T}yes" >&6 rm -f a.out a.exe conftest$ac_cv_exeext b.out ac_clean_files=$ac_clean_files_save # Check the compiler produces executables we can run. If not, either # the compiler is broken, or we cross compile. echo "$as_me:$LINENO: checking whether we are cross compiling" >&5 echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6 echo "$as_me:$LINENO: result: $cross_compiling" >&5 echo "${ECHO_T}$cross_compiling" >&6 echo "$as_me:$LINENO: checking for suffix of executables" >&5 echo $ECHO_N "checking for suffix of executables... $ECHO_C" >&6 if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 (eval $ac_link) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; then # If both `conftest.exe' and `conftest' are `present' (well, observable) # catch `conftest.exe'. For instance with Cygwin, `ls conftest' will # work properly (i.e., refer to `conftest.exe'), while it won't with # `rm'. for ac_file in conftest.exe conftest conftest.*; do test -f "$ac_file" || continue case $ac_file in *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) ;; *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` export ac_cv_exeext break;; * ) break;; esac done else { { echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link See \`config.log' for more details." >&5 echo "$as_me: error: cannot compute suffix of executables: cannot compile and link See \`config.log' for more details." >&2;} { (exit 1); exit 1; }; } fi rm -f conftest$ac_cv_exeext echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5 echo "${ECHO_T}$ac_cv_exeext" >&6 rm -f conftest.$ac_ext EXEEXT=$ac_cv_exeext ac_exeext=$EXEEXT echo "$as_me:$LINENO: checking for suffix of object files" >&5 echo $ECHO_N "checking for suffix of object files... $ECHO_C" >&6 if test "${ac_cv_objext+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ int main () { ; return 0; } _ACEOF rm -f conftest.o conftest.obj if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; then for ac_file in `(ls conftest.o conftest.obj; ls conftest.*) 2>/dev/null`; do case $ac_file in *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg ) ;; *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'` break;; esac done else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 { { echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile See \`config.log' for more details." >&5 echo "$as_me: error: cannot compute suffix of object files: cannot compile See \`config.log' for more details." >&2;} { (exit 1); exit 1; }; } fi rm -f conftest.$ac_cv_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_objext" >&5 echo "${ECHO_T}$ac_cv_objext" >&6 OBJEXT=$ac_cv_objext ac_objext=$OBJEXT echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5 echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6 if test "${ac_cv_c_compiler_gnu+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ int main () { #ifndef __GNUC__ choke me #endif ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_compiler_gnu=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_compiler_gnu=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext ac_cv_c_compiler_gnu=$ac_compiler_gnu fi echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5 echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6 GCC=`test $ac_compiler_gnu = yes && echo yes` ac_test_CFLAGS=${CFLAGS+set} ac_save_CFLAGS=$CFLAGS CFLAGS="-g" echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5 echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6 if test "${ac_cv_prog_cc_g+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ int main () { ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_prog_cc_g=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_prog_cc_g=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5 echo "${ECHO_T}$ac_cv_prog_cc_g" >&6 if test "$ac_test_CFLAGS" = set; then CFLAGS=$ac_save_CFLAGS elif test $ac_cv_prog_cc_g = yes; then if test "$GCC" = yes; then CFLAGS="-g -O2" else CFLAGS="-g" fi else if test "$GCC" = yes; then CFLAGS="-O2" else CFLAGS= fi fi echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5 echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6 if test "${ac_cv_prog_cc_stdc+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else ac_cv_prog_cc_stdc=no ac_save_CC=$CC cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include #include #include #include /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ struct buf { int x; }; FILE * (*rcsopen) (struct buf *, struct stat *, int); static char *e (p, i) char **p; int i; { return p[i]; } static char *f (char * (*g) (char **, int), char **p, ...) { char *s; va_list v; va_start (v,p); s = g (p, va_arg (v,int)); va_end (v); return s; } /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has function prototypes and stuff, but not '\xHH' hex character constants. These don't provoke an error unfortunately, instead are silently treated as 'x'. The following induces an error, until -std1 is added to get proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an array size at least. It's necessary to write '\x00'==0 to get something that's true only with -std1. */ int osf4_cc_array ['\x00' == 0 ? 1 : -1]; int test (int i, double x); struct s1 {int (*f) (int a);}; struct s2 {int (*f) (double a);}; int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); int argc; char **argv; int main () { return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; ; return 0; } _ACEOF # Don't try gcc -ansi; that turns off useful extensions and # breaks some systems' header files. # AIX -qlanglvl=ansi # Ultrix and OSF/1 -std1 # HP-UX 10.20 and later -Ae # HP-UX older versions -Aa -D_HPUX_SOURCE # SVR4 -Xc -D__EXTENSIONS__ for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" do CC="$ac_save_CC $ac_arg" rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_prog_cc_stdc=$ac_arg break else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 fi rm -f conftest.err conftest.$ac_objext done rm -f conftest.$ac_ext conftest.$ac_objext CC=$ac_save_CC fi case "x$ac_cv_prog_cc_stdc" in x|xno) echo "$as_me:$LINENO: result: none needed" >&5 echo "${ECHO_T}none needed" >&6 ;; *) echo "$as_me:$LINENO: result: $ac_cv_prog_cc_stdc" >&5 echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6 CC="$CC $ac_cv_prog_cc_stdc" ;; esac # Some people use a C++ compiler to compile C. Since we use `exit', # in C++ we need to declare it. In case someone uses the same compiler # for both compiling C and C++ we need to have the C++ compiler decide # the declaration of exit, since it's the most demanding environment. cat >conftest.$ac_ext <<_ACEOF #ifndef __cplusplus choke me #endif _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then for ac_declaration in \ '' \ 'extern "C" void std::exit (int) throw (); using std::exit;' \ 'extern "C" void std::exit (int); using std::exit;' \ 'extern "C" void exit (int) throw ();' \ 'extern "C" void exit (int);' \ 'void exit (int);' do cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ $ac_declaration #include int main () { exit (42); ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then : else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 continue fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ $ac_declaration int main () { exit (42); ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then break else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext done rm -f conftest* if test -n "$ac_declaration"; then echo '#ifdef __cplusplus' >>confdefs.h echo $ac_declaration >>confdefs.h echo '#endif' >>confdefs.h fi else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5 echo $ECHO_N "checking how to run the C preprocessor... $ECHO_C" >&6 # On Suns, sometimes $CPP names a directory. if test -n "$CPP" && test -d "$CPP"; then CPP= fi if test -z "$CPP"; then if test "${ac_cv_prog_CPP+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else # Double quotes because CPP needs to be expanded for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp" do ac_preproc_ok=false for ac_c_preproc_warn_flag in '' yes do # Use a header file that comes with gcc, so configuring glibc # with a fresh cross-compiler works. # Prefer to if __STDC__ is defined, since # exists even on freestanding compilers. # On the NeXT, cc -E runs the code through the compiler's parser, # not just through cpp. "Syntax error" is here to catch this case. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #ifdef __STDC__ # include #else # include #endif Syntax error _ACEOF if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } >/dev/null; then if test -s conftest.err; then ac_cpp_err=$ac_c_preproc_warn_flag ac_cpp_err=$ac_cpp_err$ac_c_werror_flag else ac_cpp_err= fi else ac_cpp_err=yes fi if test -z "$ac_cpp_err"; then : else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 # Broken: fails on valid input. continue fi rm -f conftest.err conftest.$ac_ext # OK, works on sane cases. Now check whether non-existent headers # can be detected and how. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include _ACEOF if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } >/dev/null; then if test -s conftest.err; then ac_cpp_err=$ac_c_preproc_warn_flag ac_cpp_err=$ac_cpp_err$ac_c_werror_flag else ac_cpp_err= fi else ac_cpp_err=yes fi if test -z "$ac_cpp_err"; then # Broken: success on invalid input. continue else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 # Passes both tests. ac_preproc_ok=: break fi rm -f conftest.err conftest.$ac_ext done # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. rm -f conftest.err conftest.$ac_ext if $ac_preproc_ok; then break fi done ac_cv_prog_CPP=$CPP fi CPP=$ac_cv_prog_CPP else ac_cv_prog_CPP=$CPP fi echo "$as_me:$LINENO: result: $CPP" >&5 echo "${ECHO_T}$CPP" >&6 ac_preproc_ok=false for ac_c_preproc_warn_flag in '' yes do # Use a header file that comes with gcc, so configuring glibc # with a fresh cross-compiler works. # Prefer to if __STDC__ is defined, since # exists even on freestanding compilers. # On the NeXT, cc -E runs the code through the compiler's parser, # not just through cpp. "Syntax error" is here to catch this case. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #ifdef __STDC__ # include #else # include #endif Syntax error _ACEOF if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } >/dev/null; then if test -s conftest.err; then ac_cpp_err=$ac_c_preproc_warn_flag ac_cpp_err=$ac_cpp_err$ac_c_werror_flag else ac_cpp_err= fi else ac_cpp_err=yes fi if test -z "$ac_cpp_err"; then : else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 # Broken: fails on valid input. continue fi rm -f conftest.err conftest.$ac_ext # OK, works on sane cases. Now check whether non-existent headers # can be detected and how. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include _ACEOF if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } >/dev/null; then if test -s conftest.err; then ac_cpp_err=$ac_c_preproc_warn_flag ac_cpp_err=$ac_cpp_err$ac_c_werror_flag else ac_cpp_err= fi else ac_cpp_err=yes fi if test -z "$ac_cpp_err"; then # Broken: success on invalid input. continue else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 # Passes both tests. ac_preproc_ok=: break fi rm -f conftest.err conftest.$ac_ext done # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. rm -f conftest.err conftest.$ac_ext if $ac_preproc_ok; then : else { { echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check See \`config.log' for more details." >&5 echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check See \`config.log' for more details." >&2;} { (exit 1); exit 1; }; } fi ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu echo "$as_me:$LINENO: checking for egrep" >&5 echo $ECHO_N "checking for egrep... $ECHO_C" >&6 if test "${ac_cv_prog_egrep+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else if echo a | (grep -E '(a|b)') >/dev/null 2>&1 then ac_cv_prog_egrep='grep -E' else ac_cv_prog_egrep='egrep' fi fi echo "$as_me:$LINENO: result: $ac_cv_prog_egrep" >&5 echo "${ECHO_T}$ac_cv_prog_egrep" >&6 EGREP=$ac_cv_prog_egrep echo "$as_me:$LINENO: checking for ANSI C header files" >&5 echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6 if test "${ac_cv_header_stdc+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include #include #include #include int main () { ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_header_stdc=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_header_stdc=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext if test $ac_cv_header_stdc = yes; then # SunOS 4.x string.h does not declare mem*, contrary to ANSI. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include _ACEOF if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | $EGREP "memchr" >/dev/null 2>&1; then : else ac_cv_header_stdc=no fi rm -f conftest* fi if test $ac_cv_header_stdc = yes; then # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include _ACEOF if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | $EGREP "free" >/dev/null 2>&1; then : else ac_cv_header_stdc=no fi rm -f conftest* fi if test $ac_cv_header_stdc = yes; then # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. if test "$cross_compiling" = yes; then : else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include #if ((' ' & 0x0FF) == 0x020) # define ISLOWER(c) ('a' <= (c) && (c) <= 'z') # define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) #else # define ISLOWER(c) \ (('a' <= (c) && (c) <= 'i') \ || ('j' <= (c) && (c) <= 'r') \ || ('s' <= (c) && (c) <= 'z')) # define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) #endif #define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) int main () { int i; for (i = 0; i < 256; i++) if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2); exit (0); } _ACEOF rm -f conftest$ac_exeext if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 (eval $ac_link) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='./conftest$ac_exeext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then : else echo "$as_me: program exited with status $ac_status" >&5 echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ( exit $ac_status ) ac_cv_header_stdc=no fi rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext fi fi fi echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5 echo "${ECHO_T}$ac_cv_header_stdc" >&6 if test $ac_cv_header_stdc = yes; then cat >>confdefs.h <<\_ACEOF #define STDC_HEADERS 1 _ACEOF fi echo "$as_me:$LINENO: checking for sys/wait.h that is POSIX.1 compatible" >&5 echo $ECHO_N "checking for sys/wait.h that is POSIX.1 compatible... $ECHO_C" >&6 if test "${ac_cv_header_sys_wait_h+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include #include #ifndef WEXITSTATUS # define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8) #endif #ifndef WIFEXITED # define WIFEXITED(stat_val) (((stat_val) & 255) == 0) #endif int main () { int s; wait (&s); s = WIFEXITED (s) ? WEXITSTATUS (s) : 1; ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_header_sys_wait_h=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_header_sys_wait_h=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_header_sys_wait_h" >&5 echo "${ECHO_T}$ac_cv_header_sys_wait_h" >&6 if test $ac_cv_header_sys_wait_h = yes; then cat >>confdefs.h <<\_ACEOF #define HAVE_SYS_WAIT_H 1 _ACEOF fi # On IRIX 5.3, sys/types and inttypes.h are conflicting. for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ inttypes.h stdint.h unistd.h do as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6 if eval "test \"\${$as_ac_Header+set}\" = set"; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ $ac_includes_default #include <$ac_header> _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then eval "$as_ac_Header=yes" else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 eval "$as_ac_Header=no" fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6 if test `eval echo '${'$as_ac_Header'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 _ACEOF fi done for ac_header in fcntl.h sys/time.h syslog.h unistd.h do as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` if eval "test \"\${$as_ac_Header+set}\" = set"; then echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6 if eval "test \"\${$as_ac_Header+set}\" = set"; then echo $ECHO_N "(cached) $ECHO_C" >&6 fi echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6 else # Is the header compilable? echo "$as_me:$LINENO: checking $ac_header usability" >&5 echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6 cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ $ac_includes_default #include <$ac_header> _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_header_compiler=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_header_compiler=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext echo "$as_me:$LINENO: result: $ac_header_compiler" >&5 echo "${ECHO_T}$ac_header_compiler" >&6 # Is the header present? echo "$as_me:$LINENO: checking $ac_header presence" >&5 echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6 cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include <$ac_header> _ACEOF if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } >/dev/null; then if test -s conftest.err; then ac_cpp_err=$ac_c_preproc_warn_flag ac_cpp_err=$ac_cpp_err$ac_c_werror_flag else ac_cpp_err= fi else ac_cpp_err=yes fi if test -z "$ac_cpp_err"; then ac_header_preproc=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_header_preproc=no fi rm -f conftest.err conftest.$ac_ext echo "$as_me:$LINENO: result: $ac_header_preproc" >&5 echo "${ECHO_T}$ac_header_preproc" >&6 # So? What about this header? case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in yes:no: ) { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5 echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5 echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;} ac_header_preproc=yes ;; no:yes:* ) { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5 echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5 echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5 echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5 echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5 echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;} { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5 echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;} ( cat <<\_ASBOX ## ------------------------------------------ ## ## Report this to the AC_PACKAGE_NAME lists. ## ## ------------------------------------------ ## _ASBOX ) | sed "s/^/$as_me: WARNING: /" >&2 ;; esac echo "$as_me:$LINENO: checking for $ac_header" >&5 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6 if eval "test \"\${$as_ac_Header+set}\" = set"; then echo $ECHO_N "(cached) $ECHO_C" >&6 else eval "$as_ac_Header=\$ac_header_preproc" fi echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6 fi if test `eval echo '${'$as_ac_Header'}'` = yes; then cat >>confdefs.h <<_ACEOF #define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 _ACEOF fi done echo "$as_me:$LINENO: checking for pid_t" >&5 echo $ECHO_N "checking for pid_t... $ECHO_C" >&6 if test "${ac_cv_type_pid_t+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ $ac_includes_default int main () { if ((pid_t *) 0) return 0; if (sizeof (pid_t)) return 0; ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_type_pid_t=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_type_pid_t=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_type_pid_t" >&5 echo "${ECHO_T}$ac_cv_type_pid_t" >&6 if test $ac_cv_type_pid_t = yes; then : else cat >>confdefs.h <<_ACEOF #define pid_t int _ACEOF fi echo "$as_me:$LINENO: checking for size_t" >&5 echo $ECHO_N "checking for size_t... $ECHO_C" >&6 if test "${ac_cv_type_size_t+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ $ac_includes_default int main () { if ((size_t *) 0) return 0; if (sizeof (size_t)) return 0; ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_type_size_t=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_type_size_t=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_type_size_t" >&5 echo "${ECHO_T}$ac_cv_type_size_t" >&6 if test $ac_cv_type_size_t = yes; then : else cat >>confdefs.h <<_ACEOF #define size_t unsigned _ACEOF fi echo "$as_me:$LINENO: checking for uid_t in sys/types.h" >&5 echo $ECHO_N "checking for uid_t in sys/types.h... $ECHO_C" >&6 if test "${ac_cv_type_uid_t+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include _ACEOF if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | $EGREP "uid_t" >/dev/null 2>&1; then ac_cv_type_uid_t=yes else ac_cv_type_uid_t=no fi rm -f conftest* fi echo "$as_me:$LINENO: result: $ac_cv_type_uid_t" >&5 echo "${ECHO_T}$ac_cv_type_uid_t" >&6 if test $ac_cv_type_uid_t = no; then cat >>confdefs.h <<\_ACEOF #define uid_t int _ACEOF cat >>confdefs.h <<\_ACEOF #define gid_t int _ACEOF fi echo "$as_me:$LINENO: checking return type of signal handlers" >&5 echo $ECHO_N "checking return type of signal handlers... $ECHO_C" >&6 if test "${ac_cv_type_signal+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ #include #include #ifdef signal # undef signal #endif #ifdef __cplusplus extern "C" void (*signal (int, void (*)(int)))(int); #else void (*signal ()) (); #endif int main () { int i; ; return 0; } _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 (eval $ac_compile) 2>conftest.er1 ac_status=$? grep -v '^ *+' conftest.er1 >conftest.err rm -f conftest.er1 cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); } && { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; } && { ac_try='test -s conftest.$ac_objext' { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 (eval $ac_try) 2>&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then ac_cv_type_signal=void else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 ac_cv_type_signal=int fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext fi echo "$as_me:$LINENO: result: $ac_cv_type_signal" >&5 echo "${ECHO_T}$ac_cv_type_signal" >&6 cat >>confdefs.h <<_ACEOF #define RETSIGTYPE $ac_cv_type_signal _ACEOF for ac_func in select socket strerror strstr do as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh` echo "$as_me:$LINENO: checking for $ac_func" >&5 echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6 if eval "test \"\${$as_ac_var+set}\" = set"; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ /* Define $ac_func to an innocuous variant, in case declares $ac_func. For example, HP-UX 11i declares gettimeofday. */ #define $ac_func innocuous_$ac_func /* System header to define __stub macros and hopefully few prototypes, which can conflict with char $ac_func (); below. Prefer to if __STDC__ is defined, since exists even on freestanding compilers. */ #ifdef __STDC__ # include #else # include #endif #undef $ac_func /* Override any gcc2 internal prototype to avoid an error. */ #ifdef __cplusplus extern "C" { #endif /* We use char because int might match the return type of a gcc2 builtin and then its argument prototype would still apply. */ char $ac_func (); /* The GNU C library defines this for functions which it implements to always fail with ENOSYS. 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AC_TYPE_PID_T AC_TYPE_SIZE_T AC_TYPE_UID_T dnl Checks for library functions. AC_TYPE_SIGNAL AC_CHECK_FUNCS(select socket strerror strstr) AC_CHECK_FUNC(gethostent, , AC_CHECK_LIB(nsl, gethostent)) AC_CHECK_FUNC(setsockopt, , AC_CHECK_LIB(socket, setsockopt)) dnl Checks for /var/run echo -n 'checking for /var/run/... ' if test -d /var/run then echo '#define HAS_VAR_RUN' >> config.h echo 'yes' else echo 'no -- automatic shutdown not supported' fi echo -n 'checking for getopt_long... ' AC_TRY_COMPILE( [#include #include #include #include ], [getopt_long(0,NULL,NULL,NULL,NULL);], [echo yes; echo \#define HAS_GETOPT_LONG >> config.h], [echo no - short command line options only]) AC_OUTPUT(Makefile) ident2-v1.07_FINAL/ident2.80000644000175000001440000000424710270200406012116 00000000000000.TH ident2 8 GNU .\" NAME should be all caps, SECTION should be 1-8, maybe w/ subsection .\" other parms are allowed: see man(7), man(1) .SH NAME ident2 \- An advanced ident daemon .SH SYNOPSIS .B ident2 .I "[options]" .SH "DESCRIPTION" ident2 is an advanced ident daemon, which can run as an inetd service or on it's own. It has various features such as user defined and random replies, extensive logging, and full administrative control. .PP .SH OPTIONS The program follows the usual GNU syntax command-line unless it is unsupported on your system. GNU options begin with two dashes(`-') and have much more descriptive names. .TP .B \-h, \-\-help Show summary of options. .TP .B \-u, \-\-usage Shows example command lines .TP .B \-v, \-\-version Show version information .TP .B \-l, \-\-license Show licensing information .TP .B \-a, \-\-force\-inetd Force inetd mode, if autodetection isn't working. .TP .B \-d, \-\-force\-daemon Force standalone daemon, if autodetection isn't working. .TP .B \-i, \-\-use\-user\-ident Allow user defined ident replies. Just do a .B echo 'ident ar' > ~/.ident to change your ident reply. .TP .B \-y, \-\-user\-reply\-file File ident2 should look for in user's homedir for replies. Default is ~/.ident .TP .B \-n, \-\-allow\-noident\-file Disable replies for user if user has a ~/.noident file. This behavior is disabled by default. .TP .B \-o, \-\-client\-timeout Clients timeout after this many seconds .TP .B \-s, \-\-dont\-change\-uid Ident2 will normally try to change it's uid to something less privileged if it finds it's uid to be 0. This option disables this behavior altogether. .TP .B \-r, \-\-always\-random Always send a random reply, regardless of what kind of request the client made. This is useful for abusing the ident protocol as well as assisting outgoing IP masqueraded connections. .TP .B \-m, \-\-daemon\-maxclients Daemon-only: Accept no more than this many connections at a time. .TP .B \-p, \-\-daemon\-port Daemon-only: Bind this port, instead of 'auth' aka 113 .TP .SH "SEE ALSO" .IR "inetd(8), inetd.conf(5)" .SH AUTHOR This manual page was written by Alexander Reelsen , for the Debian GNU/Linux system (but may be used by others). ident2-v1.07_FINAL/ident2.c0000644000175000001440000001634710270200406012175 00000000000000/* * Ident-2 - an Identity server for UNIX * Copyright (C) 1998-2001 Michael Bacarella * Copyright (C) 2003 Netgraft Corporation * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * Please view the file README for program information. * */ #include "ident2.h" #ifdef HAS_GETOPT_LONG #include /* getopt() is declared in unistd.h */ #endif /* * determine if we're running as a child of inetd * or if we were started via a command line (or from * a process not inetd) */ static int inetd_child (void) { struct sockaddr_in sin; int sinsize = sizeof (struct sockaddr_in); /* if child of inetd, 0 would be a socket */ if (getsockname (0, (struct sockaddr *)&sin, (int *)&sinsize) == -1) { if (errno == ENOTSOCK) return 0; /* must be a filedescriptor */ else { syslog (LOG_ERR, "getsockname: %s\n", strerror (errno)); exit (-1); } } return 1; } #define print_header() printf ("Ident2 version %s, Copyright (C) 1999-2004 Michael Bacarella\n", ID_VERSION) static void print_usage (void) { print_header(); puts ("Example command lines:"); puts (" ident2 -r sends random replies, always"); puts (" ident2 -i -y .reply allows user replies, which are read\n" " from the file ~/.reply"); puts (" ident2 -m 5 -o 10 ultra secure mode. no more than\n" " 5 connections at once, each connection\n" " is killed after 10 seconds regardless."); puts (" ident2 -s stop ident2 from trying to change it's\n" " userid if it discovers that it's running\n" " as a root process."); } static void print_license (void) { print_header(); puts( "ident2 is free software, and you are welcome to redistribute it\n" "under certain conditions; ident2 comes with ABSOLUTELY NO WARRANTY;\n" "for details, go to http://www.gnu.org/\n"); } static void print_help (void) { print_header(); #ifdef HAS_GETOPT_LONG puts ( "usage: ident2 [options]\n" "options:\n" "\n" "these parameters apply to all incarnations of ident2\n" "\n" " -h --help this command line information\n" " -u --usage shows example command lines\n" " -v --version show version information\n" " -l --license show licensing information\n" " -a --force-inetd force inetd mode\n" " -d --force-daemon force standalone daemon\n" " -i --use-user-ident allow user defined ident replies\n" " -y --user-reply-file file in user's homedir for replies\n" " -n --allow-noident-file don't reply if user has a ~/NOIDENT file\n" " -o --client-timeout clients timeout after this many secs\n" " -s --dont-change-uid don't try to change uid (to nobody)\n" " -r --always-random always send a random reply\n" "\n" "these parameters only apply to the daemon ident2\n" "\n" " -m --daemon-maxclients accept no more than this many clients\n" " -p --daemon-port bind this port, instead of 'auth'\n" ); #else puts( "usage: ident2 [options]\n" "options:\n" "\n" "these parameters apply to all incarnations of ident2\n" "\n" " -h this command line information\n" " -u shows example command lines\n" " -v show version information\n" " -l show licensing information\n" " -a force inetd mode\n" " -d force standalone daemon\n" " -i allow user defined ident replies\n" " -y file in user's homedir for replies\n" " -n don't reply if user has a ~/NOIDENT file\n" " -o clients timeout after this many secs\n" " -s don't try to change uid (ex: to nobody)\n" " -r always send a random reply, even to bad requests\n" "\n" "these parameters only apply to the daemon ident2\n" "\n" " -m accept no more than this many clients\n" " -p bind this port, instead of 'auth'\n" ); #endif } /* * print version info */ static void print_version (void) { printf ("Ident2 version %s, maintainer %s\n\n", ID_VERSION, ID_MAINTAINER); } static void command_line (int argc, char *argv[]) { int c; /* getopt_long support implemented * by Alexander Reelsen */ #ifdef HAS_GETOPT_LONG while (1) { /* int this_option_optind = optind ? optind : 1; */ /*unused?*/ int option_index = 0; static struct option long_options[] = { {"allow-noident-file", 0, 0, 'n'}, {"help", 0, 0, 'h'}, {"usage", 0, 0, 'u'}, {"version", 0, 0, 'v'}, {"license", 0, 0, 'l'}, {"force-inetd", 0, 0, 'a'}, {"force-daemon", 0, 0, 'd'}, {"use-user-ident", 0, 0, 'i'}, {"dont-change-uid", 0, 0, 's'}, {"always-random", 0, 0, 'r'}, {"user-reply-file", 1, 0, 'y'}, {"client-timeout", 1, 0, 'o'}, {"daemon-maxclients", 1, 0, 'm'}, {"daemon-port", 1, 0, 'p'}, {0, 0, 0, 0}, }; c = getopt_long (argc, argv, "nhuvrliady:o:ftTsm:p:", long_options, &option_index); if (c == -1) { break; } #else while ((c = getopt (argc, argv, "nhuvrliady:o:ftTsm:p:")) != -1) { #endif switch (c) { case 'n': Allow_NOIDENT = TRUE; break; case 'h': print_help (); exit (0); case 'u': print_usage (); exit (0); case 'v': print_version (); exit (0); case 'l': print_license (); exit (0); case 'a': Service_Type = INETD; break; case 'd': Service_Type = DAEMON; break; case 'i': Use_User_Ident = TRUE; break; case 's': Dont_Change_Uid = TRUE; break; case 'r': Reply_Always_Random = TRUE; break; case 'y': User_Ident_File = optarg; break; case 'o': if ((Client_Timeout = atol (optarg)) == 0) { fprintf (stderr, "ERROR: Ident2: bad " "value for arguement `o'\n"); exit (1); } break; case 'm': if ((Max_Connections = atol (optarg)) == 0) { fprintf (stderr, "ERROR: Ident2: bad" " value for arguement `m'\n"); exit (1); } break; case 'p': if ((Ident_Port = atoi (optarg)) == 0) { fprintf (stderr, "ERROR: Ident2: bad" " value for arguement `p'\n"); exit (1); } break; case '?': default: #ifdef HAS_GETOPT_LONG fprintf (stderr, "ident2: bad command line:\n" "\t``ident2 --help | more'' for help\n" "\t``ident2 --usage'' for some examples\n\n"); #else fprintf (stderr, "ident2: bad command line:\n" "\t``ident2 -h | more'' for help\n" "\t``ident2 -u'' for some examples\n\n"); #endif exit (1); } } } int main (int argc, char *argv[]) { INIT_GLOBALS(); command_line (argc, argv); /* try to determine the service type if nothing * has been forced (by commandline) */ if (Service_Type == NO_TYPE) { if (inetd_child ()) Service_Type = INETD; else Service_Type = DAEMON; } if (Service_Type == INETD) { openlog ("in.ident2", LOG_PID, LOG_AUTH); child_service (STDIN_FILENO, STDOUT_FILENO); closelog (); } else daemon_service (); return 0; } ident2-v1.07_FINAL/ident2.h0000644000175000001440000000556210270200406012177 00000000000000/* * Ident-2 - an Identity server for UNIX * Copyright (C) 1998-2001 Michael Bacarella * Copyright (C) 2003 Netgraft Corporation * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * Please view the file README for program information. * */ #ifndef IDENT2_H_ #define IDENT2_H_ #define ID_VERSION "1.05-FINAL" #define ID_MAINTAINER "mike@bacarella.com" #define FALSE 0 #define TRUE 1 #define ID_BUF_SIZE 128 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "define.h" /* * ================================================================== * GLOBALS * ================================================================== */ enum Service_Type {NO_TYPE, DAEMON, INETD}; /* ------------ variables ---------- */ size_t Max_Connections; size_t Client_Timeout; enum Service_Type Service_Type; char Dont_Change_Uid; char Use_User_Ident; char Allow_NOIDENT; char *User_Ident_File; char Reply_Always_Random; unsigned short Ident_Port; /* ----------- handy init macro ---------- */ #define INIT_GLOBALS() { \ Dont_Change_Uid = FALSE; \ Reply_Always_Random = FALSE; \ Use_User_Ident = FALSE; \ \ Ident_Port = IDENT_PORT; \ Service_Type = NO_TYPE; \ \ User_Ident_File = USERCONF_FILE; \ Max_Connections = DEF_MAX_CONNECTIONS; \ Client_Timeout = DEF_CLIENT_TIMEOUT; \ } /* #### DAEMON.C #### */ void daemon_service (void); /* #### MACHINE.C #### */ /* ( M_.C ) */ /** ** MACHINE DEPENDANT FUNCTIONS ** ports need only implement the functionality ** exported from these three functions **/ int m_get_uid (struct in_addr *, u_short, struct in_addr *, u_short); int m_reduce_rights (void); /* ..to minimize damage.. */ int m_register_pid (void); /* for service management purposes */ /* #### COMMON.C #### */ void *xmalloc (size_t); void child_service (int, int); void nexus (int, char *); #endif /* WHOLE FILE */ ident2-v1.07_FINAL/common.c0000644000175000001440000001565010270200406012274 00000000000000/* * Ident-2 - an Identity server for UNIX * Copyright (C) 1998-2001 Michael Bacarella * Copyright (C) 2003 Netgraft Corporation * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * Please view the file README for program information. * * Common function definitions. * Used without regulation by other modules */ #include "ident2.h" void * xmalloc (size_t nb) { void *p = malloc (nb); if (p == NULL) { fprintf (stderr, "ident2: terminating on memory allocation error\n"); syslog (LOG_ERR, "error: memory allocation error"); exit (1); } return p; } /* * a (skewed) fgets() that works on file descriptors * the '\r' charecter is ignored * returns the number of bytes written into the given * buffer, including the terminating NUL */ static int _getl (int d, char *begin, u_short len) { char *p, *end; end = &begin[len-1]; /* leave room for terminating NUL */ for (p = begin; p < end; ++p) { if (read (d, p, 1) != 1) break; if (*p == '\n') break; if (*p == '\r') p--; /* ignore \r */ } *p++ = 0; return p-begin; } /* * this function is called directly as an inetd * handler as well as a fork()ed into by the daemon * service of the server.. */ void child_service (int in, int out) { char buf[ID_BUF_SIZE]; signal (SIGALRM, exit); alarm (Client_Timeout); if (m_reduce_rights () == -1) syslog (LOG_ERR, "error: cannot reduce self's rights " "[m_reduce_rights()]"); else while (_getl (in, buf, ID_BUF_SIZE) != 0) nexus (out, buf); close (in); if (out != in) close (out); } typedef struct cl_t { int sd; uid_t uid; unsigned short lp, rp; struct sockaddr_in laddr, raddr; struct passwd *pw; } cl_t; /* * send an ident formatted reply to client */ static void _clreply (cl_t *cl, char *rslt, char *info) { char buf[ID_BUF_SIZE+1]; buf[ID_BUF_SIZE] = 0; snprintf (buf, ID_BUF_SIZE-1, "%d , %d : %s : %s\r\n", cl->lp, cl->rp, rslt, info); write (cl->sd, buf, strlen (buf)); } static int _check_noident (cl_t *cl) { char p[ID_BUF_SIZE+1]; p[ID_BUF_SIZE] = 0; snprintf (p, ID_BUF_SIZE-1, "%s/%s", cl->pw->pw_dir, NOIDENT_FILE); if (access (p, F_OK) == 0) { _clreply (cl, "ERROR", "HIDDEN-USER"); syslog (LOG_INFO, "no reply to %s (query %d, %d) due to %s", inet_ntoa (cl->raddr.sin_addr), cl->lp, cl->rp, p); return 0; } return -1; } static int _check_user_ident (cl_t *cl) { FILE *fp; int retval = -1; char idfile[ID_BUF_SIZE+1]; idfile[ID_BUF_SIZE] = 0; snprintf (idfile, ID_BUF_SIZE-1, "%s/%s", cl->pw->pw_dir, User_Ident_File); if (access (idfile, R_OK) == 0) { if ((fp = fopen (idfile, "r")) != NULL) { char *p, buf[4096]; memset (buf, 0, 4096); fgets (buf, 4095, fp); strtok (buf, "\r\n"); if ((p = strstr (buf, "ident "))) { char rply[ID_BUF_SIZE+1]; rply[ID_BUF_SIZE] = 0; snprintf (rply, ID_BUF_SIZE-1, "UNIX : %s", p+6); _clreply (cl, "USERID", rply); syslog (LOG_INFO, "sent reply `%s' to query %s " "(%d, %d), uid = %d", p, inet_ntoa (cl->raddr.sin_addr), cl->lp, cl->rp, cl->uid); retval = 0; } fclose (fp); } } return retval; } /* * handy for users who use an ip masqueraded setup that just * want to friggin get on IRC and don't care what their ident * is. Or if you want to annoy your IRC admins, because they * totally deserve it. */ static void _send_random_reply (cl_t *cl) { char randstr[RAND_STRING_LENGTH+1]; char buf[ID_BUF_SIZE+1]; size_t i; buf[ID_BUF_SIZE] = 0; srand (time(NULL)); for (i = 0; i < RAND_STRING_LENGTH; i++) { randstr[i] = rand(); while (randstr[i] > 'z') randstr[i] -= 26; while (randstr[i] < 'a') randstr[i] += 26; } randstr[RAND_STRING_LENGTH] = 0; snprintf (buf, ID_BUF_SIZE-1, "UNIX : %s", randstr); _clreply (cl, "USERID", buf); syslog (LOG_INFO, "sent random reply for query %s (%d, %d)", inet_ntoa (cl->raddr.sin_addr), cl->lp, cl->rp); return; } /* * determines and collects client information * and returns it in a neat and conveniant package */ static cl_t * _new_cl (int sd, char *line) { int uid, ssiz = sizeof (struct sockaddr); cl_t *p, cl; char *s; cl.sd = sd; cl.lp = cl.rp = 0; if (!(s = strchr (line, ','))) { _clreply (&cl, "ERROR", "INVALID-PORT"); return NULL; } *s = 0; cl.lp = (u_short) atoi (line); cl.rp = (u_short) atoi (s+1); if (getsockname (sd, (struct sockaddr *)&cl.laddr, &ssiz) == -1) { syslog (LOG_WARNING, "warning: getsockname(): %s\n", strerror (errno)); _clreply (&cl, "ERROR", "UNKNOWN-ERROR"); return NULL; } if (getpeername (sd, (struct sockaddr *)&cl.raddr, &ssiz) == -1) { syslog (LOG_WARNING, "warning: getpeername(): %s\n", strerror (errno)); _clreply (&cl, "ERROR", "UNKNOWN-ERROR"); return NULL; } if (Reply_Always_Random == TRUE) { _send_random_reply (&cl); return NULL; } uid = m_get_uid (&cl.laddr.sin_addr, cl.lp, &cl.raddr.sin_addr, cl.rp); if (uid == -1) { syslog (LOG_WARNING, "warning: bad request: %d/%d, from %s", cl.lp, cl.rp, inet_ntoa (cl.raddr.sin_addr)); _clreply (&cl, "ERROR", "NO-USER"); return NULL; } cl.uid = uid; if ((cl.pw = getpwuid (cl.uid)) == NULL) { syslog (LOG_ERR, "warning: cannot map %d to a username: %s " "requested by query %s (%d, %d)", cl.uid, strerror (errno), inet_ntoa (cl.raddr.sin_addr), cl.lp, cl.rp); _clreply (&cl, "ERROR", "UNKNOWN-ERROR"); return NULL; } p = xmalloc (sizeof (cl_t)); *p = cl; return p; } /** ** nexus ** ** this is called by all service modes if ** any reply is to be returned to the ** client. **/ void nexus (int sd, char *line) { cl_t *cl; char buf[ID_BUF_SIZE+1]; buf[ID_BUF_SIZE] = 0; if ((cl = _new_cl (sd, line)) == NULL) return; /* if user configs are allowed, use the user's (if they * have one, else just use the global config */ if (Allow_NOIDENT == TRUE) if (!_check_noident (cl)) { free (cl); return; } if (Use_User_Ident == TRUE) if (!_check_user_ident (cl)) { free (cl); return; } snprintf (buf, ID_BUF_SIZE-1, "UNIX : %s", cl->pw->pw_name); _clreply (cl, "USERID", buf); syslog (LOG_INFO, "sent reply `%s' to query %s " "(%d, %d), uid = %d", cl->pw->pw_name, inet_ntoa (cl->raddr.sin_addr), cl->lp, cl->rp, cl->uid); free (cl); return; } ident2-v1.07_FINAL/Makefile.in0000644000175000001440000000434210226226727012720 00000000000000# Makefile for ident2 # Copyright (C) 1999 Michael Bacarella # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. top_srcdir = @top_srcdir@ srcdir = @srcdir@ VPATH = @srcdir@ .SUFFIXES: .SUFFIXES: .c .o OPT=-g -O2 AR = ar AR_FLAGS = rc RANLIB = @RANLIB@ CC = @CC@ CFLAGS = -Wall -O2 @CFLAGS@ INSTALL = @INSTALL@ prefix = @prefix@ exec_prefix = @exec_prefix@ doc_format = @doc_format@ PROG = ident2 BINDIR = @prefix@/sbin MANDIR = @prefix@/man/man8 SOURCES=ident2.c common.c daemon.c m_${MACHTARGET}.c OBJS=ident2.o common.o daemon.o machine.o DOC=ident2.8 LIBS=@LIBS@ all: $(PROG) install: all $(top_srcdir)/util/mkinstalldirs $(prefix)/sbin $(top_srcdir)/util/mkinstalldirs $(prefix)/share/man/man8 $(INSTALL) $(PROG) $(prefix)/sbin # We get Debian to install the manpages. # $(INSTALL) $(DOC) $(prefix)/share/man/man8 uninstall: /bin/rm -f $(prefix)/sbin/$(PROG) /bin/rm -f $(prefix)/share/man/$(DOC) $(PROG): $(OBJS) $(CC) $(CFLAGS) -o $(PROG) $(OBJS) $(LIBS) clean: /bin/rm -f core *.o $(OBJS) $(PROG) distclean: clean /bin/rm -f Makefile config.h config.status config.cache config.log mostlyclean: clean maintainer-clean: clean #PROG.doc: PROG. # makeinfo PROG.texi # automatic re-running of configure if the ocnfigure.in file has changed #configure: configure.in # autoconf # autoheader might not change config.h.in, so touch a stamp file #config.h.in: stamp-h.in #stamp-h.in: configure.in # autoheader # echo timestamp > stamp-h.in # #config.h: stamp-h #stamp-h: config.h.in config.status # ./config.status #Makefile: Makefile.in config.status # ./config.status #config.status: configure # ./config.status --recheck ident2-v1.07_FINAL/define.h0000644000175000001440000000243510270200406012240 00000000000000 #include "config.h" /* need this for sys dependancy fun */ /* * User the ident service should run as to provide maximum system * safety (in case of exploits and such). User nobody should work * fine on Linux and FreeBSD. This is only supplied for admins that * may perhaps be -ultra- security conscious (insane?) enough to make * a seperate user for ident services. It also allows for fun things * with groups. */ #define SAFE_ACCESS_USER "nobody" /* * Port to bind to. * I am not aware of any other ident server or ident query agent * in existance that uses a port other than 113. */ #define IDENT_PORT 113 /* * user should create this file in their home directory * if they do not want ident2 to send out ident * replies. */ #define NOIDENT_FILE ".noident" /* * ident server looks for this file in the user's * home directory and uses this to decide what to reply */ #define USERCONF_FILE ".ident" /* * number of default max connections (overriden via command-line) * that a server will handle at once. */ #define DEF_MAX_CONNECTIONS 25 /* * default amount of time (overriden via command-line) to keep * any given connection open for (specified in seconds). */ #define DEF_CLIENT_TIMEOUT 20 /* * if you happen to use this feature */ #define RAND_STRING_LENGTH 6 ident2-v1.07_FINAL/config.h.in0000600000175000001440000000236410270200406012651 00000000000000/* config.h.in. Generated automatically from configure.in by autoheader. */ /* Define to `int' if doesn't define. */ #undef gid_t /* Define if you have that is POSIX.1 compatible. */ #undef HAVE_SYS_WAIT_H /* Define to `int' if doesn't define. */ #undef pid_t /* Define as the return type of signal handlers (int or void). */ #undef RETSIGTYPE /* Define to `unsigned' if doesn't define. */ #undef size_t /* Define if you have the ANSI C header files. */ #undef STDC_HEADERS /* Define to `int' if doesn't define. */ #undef uid_t /* Define if you have the getopt_long function. */ #undef HAVE_GETOPT_LONG /* Define if you have the select function. */ #undef HAVE_SELECT /* Define if you have the socket function. */ #undef HAVE_SOCKET /* Define if you have the strerror function. */ #undef HAVE_STRERROR /* Define if you have the strstr function. */ #undef HAVE_STRSTR /* Define if you have the header file. */ #undef HAVE_FCNTL_H /* Define if you have the header file. */ #undef HAVE_SYS_TIME_H /* Define if you have the header file. */ #undef HAVE_SYSLOG_H /* Define if you have the header file. */ #undef HAVE_UNISTD_H ident2-v1.07_FINAL/CHANGES0000644000175000001440000001150410270201224011624 00000000000000--------- [07/22/2005 + incorporated lsof patch which adds support for SunOS, NetBSD, OpenBSD, OSF/1, HP-UX (thanks inittab@netizenweb.com (Greg Schenzel)) --------- [05/18/2004 + buffer overflow in _getl fixed :( --------- [11/02/2003 + fixed using data after it has been freed in sys/m_fbsd.c:m_get_uid() thanks to Ilya Novoselov --------- [08/18/2000 + forgot to specifiy option 'n' in getopt_long thanks to Johan Ekenberg for pointing this out --------- [04/11/2000 + correctly handles errno == EINTR when accept() returns -1 + date formats in CHANGES file now Y2K compliant! --------- [11/2/99 + port to FreeBSD + PID registration, under FreeBSD, is also /var/run --------- [9/18/99 + changed all sprintf's to snprintf's + removed all potential security hazards (strcpy, memcpy, sprint, etc) + moved m_register_pid AFTER the initial fork()-to-become-daemon, otherwise wrong pid is registered. + d'oh. move m_reduce_rights AFTER m_register_pid, otherwise can't write pid to /var/run - NOTE, snprintf is not portable. must be removed in future. --------- [9/3/99] + performing security sweep. reevaluating choices + merged getopt_long support + added getopt_long detection to ./configure + wrote two help outputs (short and short+long versions) + implemented the --license parameter + implemented the --usage paramater --------- [8/30/99] + moved srand(time(NULL)) out of INIT_GLOBALS and into the random reply generator function. rand is seeded every time, which is flawed, but still harmless. this was moved because the parent never actually calls rand(), which sucks because the children will keep generating the same reply. + implemented new machine call, m_register_pid(), for use in daemon mode, on systems that wish to keep track of running system services. + PID registration, under Linux, in /var/run + switched to a ./configure based setup --------- [8/25/99] + changed m_linux.c to only setuid(). Under Linux, setuid() sets the effective userid as well as superuser. If this would be the case, seteuid() should fail. --------- [8/9/99] + added random replies + fixed standard unspecial replies (INIT_GLOBALS wasn't initting!) - ripped out config file parsers - ripped out all semblances of IP masquerading + rather than trying to drop userid to nobody and failing if it doesn't work, it only tries to change uid if uid is 0, elsewise, keep current uid. + reworded README --------- [6/11/99] - removed throttled daemon. I felt this included some very unnatural code and it was a pain to debug. it was a research project at most. + rewrote config file parser + rewrote command-line processor + included GNU information on top of all source files + code cleaning spree. Optimized, minimalized, etc. + fixed buffer handling in some areas which may have been dangerous + reorganized some general code into common.c + stablized threaded daemon + rewrote README + reorganized throttled daemon + moved accept() out into the child process so we don't have to do any nasty stuff like return file descriptors to the parent through exit(). + adopted capitalize global variables convention + decided to start DATING these changes ---------- 0.999c + no idea why I thought the user of 'nobody' couldn't carry on identity functions. The dropping to nobody under Linux has been reenacted. + fixed a diverge from RFC1413. Thanks to Piotr Kucharski for pointing out that END OF LINE is clearly defined by the RFC as CRLF and not LF. Apologies to anyone affected by this. + fixed an 'off by one' error in the throttled implementation causing a garbage char to appear at the end of an ident query. + command-line option to display compile-time options. + shamelessly copied a pidentd convention. If you have the file .noident in your home directory, it will not send a response to anyone requesting an ident that resolves to your username. + dropping userid to 'nobody' has been changed to instead drop the access level to a user defined variable (which SHOULD be a username). + moved quite a few variables out into seperate #defines. + dropping userid to 'nobody' as a security measure is back, again. + IP masquerading works! Much love to everyone who helped the debugging/fixing process. Especially Hans. -Actually, it only sort of works. Linux 2.0 and 2.1 have differing levels of success. Kernel 2.2 is supposedly going to settle on a format once and for all. + rand() wasn't being seeded. + for some reason I wasn't making use of #define USER_REPLIES. + dropping the userid to 'nobody' makes servicing ident requests impossible. I'm dumb. The function 'go_nobody' and all references to it were removed. + major MAJOR rewrite. This introduced some more natural (ie, not kludgy) code as well as more bugs! It should also be easier to extend and expand. Hopefully noone will get hurt this time. :) ident2-v1.07_FINAL/COPYING0000600000175000001440000004311410270200406011657 00000000000000 GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as "you". Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by running the Program). Whether that is true depends on what the Program does. 1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program. You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee. 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change. b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License. c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling the user how to view a copy of this License. (Exception: if the Program itself is interactive but does not normally print such an announcement, your work based on the Program is not required to print an announcement.) These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it. Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, the intent is to exercise the right to control the distribution of derivative or collective works based on the Program. In addition, mere aggregation of another work not based on the Program with the Program (or with a work based on the Program) on a volume of a storage or distribution medium does not bring the other work under the scope of this License. 3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above provided that you also do one of the following: a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, c) Accompany it with the information you received as to the offer to distribute corresponding source code. (This alternative is allowed only for noncommercial distribution and only if you received the program in object code or executable form with such an offer, in accord with Subsection b above.) The source code for a work means the preferred form of the work for making modifications to it. For an executable work, complete source code means all the source code for all modules it contains, plus any associated interface definition files, plus the scripts used to control compilation and installation of the executable. However, as a special exception, the source code distributed need not include anything that is normally distributed (in either source or binary form) with the major components (compiler, kernel, and so on) of the operating system on which the executable runs, unless that component itself accompanies the executable. If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to copy the source along with the object code. 4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance. 5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, by modifying or distributing the Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it. 6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients' exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to this License. 7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason (not limited to patent issues), conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot distribute so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not distribute the Program at all. For example, if a patent license would not permit royalty-free redistribution of the Program by all those who receive copies directly or indirectly through you, then the only way you could satisfy both it and this License would be to refrain entirely from distribution of the Program. If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply and the section as a whole is intended to apply in other circumstances. It is not the purpose of this section to induce you to infringe any patents or other property right claims or to contest validity of any such claims; this section has the sole purpose of protecting the integrity of the free software distribution system, which is implemented by public license practices. Many people have made generous contributions to the wide range of software distributed through that system in reliance on consistent application of that system; it is up to the author/donor to decide if he or she is willing to distribute software through any other system and a licensee cannot impose that choice. This section is intended to make thoroughly clear what is believed to be a consequence of the rest of this License. 8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the limitation as if written in the body of this License. 9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of this License, you may choose any version ever published by the Free Software Foundation. 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally. NO WARRANTY 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. END OF TERMS AND CONDITIONS Appendix: How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) 19yy This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) 19yy name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. , 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Library General Public License instead of this License. ident2-v1.07_FINAL/daemon.c0000644000175000001440000001226610270200406012247 00000000000000/* * Ident-2 - an Identity server for UNIX * Copyright (C) 1998-2001 Michael Bacarella * Copyright (C) 2003 Netgraft Corporation * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * Please view the file README for program information. * * --------------------- * This file provides the 'daemon' implementation of * ident2. * * Daemon waits for connections * forks, handles connections, cleans up, * dies, etc. * * Module entry point is ``daemon_service'' * --------------------- */ #include "ident2.h" static int _go_daemon (void) { switch (fork()) { case 0: setsid(); m_register_pid (); m_reduce_rights (); return 0; case -1: syslog (LOG_ERR, "d_core: error fork(): %s\n", strerror(errno)); return -1; default: exit (0); } } /* * remove dead children from the process vector */ static void _reap_proc (pid_t *pv, size_t Max_Connections) { pid_t *p; int r, s; for (p = pv; p < pv+Max_Connections; p++) { if (*p == 0) continue; while ((r = waitpid (*p, &s, WNOHANG)) == -1) if (errno != EINTR) { syslog (LOG_NOTICE, "warning: waitpid() error: %s", strerror (errno)); break; } if (r == 0) continue; if (r > 0) *p = 0; } } static void declient (int s) { struct sockaddr sin; int ss = sizeof (sin); close (accept (s, (struct sockaddr *)&sin, &ss)); } static void _sig_ign (int s) { return; } static int _accept_connect (int sv, struct sockaddr_in *sin) { size_t sl = sizeof (struct sockaddr_in); int cl; while ((cl = accept(sv, (struct sockaddr *)sin, &sl)) == -1) { if (errno == EINTR) continue; return -1; } return cl; } /* * will wait for a connection on SV, * find a space in the proc table and fork() * child for it. the child will accept() it and * process the waiting client. * we rely on the delivery of EINTR to interrupt * select(), which gives us a chance to test for * deceased children. */ static void d_core (int sv) { struct sigaction sa; struct sockaddr_in sin; pid_t *pv; /* become daemon */ if (_go_daemon () == -1) { syslog (LOG_ERR, "d_core: error fork(): %s\n", strerror(errno)); return; } pv = xmalloc (Max_Connections * sizeof (pid_t)); memset (pv, 0, Max_Connections * sizeof(pid_t)); sa.sa_handler = _sig_ign; sigemptyset (&sa.sa_mask); sa.sa_flags = 0; if (sigaction (SIGCHLD, &sa, NULL) == -1) { syslog (LOG_ERR, "error: registering SIGCHLD handler: %s", strerror (errno)); return; } while (1) { pid_t *p; int cl; fd_set rfd; FD_ZERO(&rfd); FD_SET(sv, &rfd); if (select (sv+1, &rfd, NULL, NULL, NULL) == -1) { if (errno != EINTR) break; _reap_proc (pv, Max_Connections); continue; } if (!FD_ISSET (sv, &rfd)) continue; for (p = pv; p < pv+Max_Connections; p++) if (*p == 0) break; if (p == pv+Max_Connections) { syslog (LOG_INFO, "refusing %s: too many open " "connections", inet_ntoa (sin.sin_addr)); declient (sv); } if ((cl = _accept_connect (sv, &sin)) == -1) { syslog (LOG_NOTICE, "warning: inconsistency error: " "select() and accept() disagree: %s", strerror (errno)); continue; } if ((*p = fork()) == -1) { syslog (LOG_ERR, "warning: couldn't fork(): %s", strerror (errno)); *p = 0; } else if (*p == 0) { child_service (cl, cl); close (cl); exit (0); } close (cl); /* close now that it's mapped into the child */ } } void daemon_service (void) { int s; struct sockaddr_in sin; openlog ("ident2", LOG_PID, LOG_DAEMON); if ((s = socket (PF_INET, SOCK_STREAM, 0)) == -1) { syslog (LOG_ERR, "error: socket(): %s", strerror (errno)); return; } sin.sin_family = AF_INET; sin.sin_port = htons (Ident_Port); sin.sin_addr.s_addr = INADDR_ANY; if (bind (s, (struct sockaddr *)&sin, sizeof (sin)) == -1) { syslog (LOG_ERR, "error: binding to port %d: bind(): %s", Ident_Port, strerror (errno)); fprintf (stderr, "error: binding to port %d: bind(): %s\n\n", Ident_Port, strerror (errno)); return; } if (listen (s, 15) == -1) { syslog (LOG_ERR, "error: listening to port %d: listen(): %s", Ident_Port, strerror (errno)); fprintf (stderr, "error: listening to port %d: listen(): %s\n", Ident_Port, strerror (errno)); return; } fclose (stdin); fclose (stderr); fclose (stdout); syslog (LOG_NOTICE, "identity services started [%s]", ID_VERSION); d_core (s); syslog (LOG_ERR, "error: identity services terminated on " "internal error: See last (few) message(s)"); closelog (); close (s); return; } ident2-v1.07_FINAL/machine.c0000644000175000001440000000614110270200616012406 00000000000000/* * Ident-2 - an Identity server for UNIX * Copyright (C) 1998-2001 Michael Bacarella * Copyright (C) 2003 Netgraft Corporation * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * Please view the file README for program information. */ /* * Support for Linux machine dependancies */ #include "ident2.h" #define PID_FILE "/var/run/ident2.pid" /** ** drop to the lowest permission level ** possible. 'nobody' is ideal for linux **/ int m_reduce_rights (void) { struct passwd *pw; if ((geteuid() && getuid()) || Dont_Change_Uid == TRUE) return 0; if ((pw = getpwnam ("nobody")) == NULL) { syslog (LOG_ERR, "error: getpwnam(nobody): %s", strerror (errno)); return -1; } if (setuid (pw->pw_uid) == -1) { syslog (LOG_ERR, "error: setuid(%d): %s", pw->pw_uid, strerror (errno)); return -1; } return 0; } /** ** find what user belongs to the connection ** described by LPORT, RPORT, RADDR, and LADDR. ** return the uid. **/ int m_get_uid (struct in_addr *laddr, u_short lp, struct in_addr *raddr, u_short rp) { FILE *fp; char buf[150]; if ((fp = fopen ("/proc/net/tcp", "r")) == NULL) { syslog (LOG_ERR, "error reading /proc/net/tcp: %s", strerror (errno)); return -1; } fgets (buf, 149, fp); /* eat header!)*$ */ while (fgets (buf, 149, fp)) { unsigned long local_addr, remote_addr; unsigned long tx_queue, rx_queue, tm_when; int sl, uid, retrnsmt, st, tr, local_port, remote_port; if (sscanf (buf, "%d: %lX:%x %lX:%x %x %lX:%lX %x:%lX %x %d", &sl, &local_addr, &local_port, &remote_addr, &remote_port, &st, &tx_queue, &rx_queue, &tr, &tm_when, &retrnsmt, &uid) == 12) { if (lp == local_port && rp == remote_port && remote_addr == raddr->s_addr) { if (laddr == NULL) { fclose (fp); return uid; } else if (laddr->s_addr == local_addr) { fclose (fp); return uid; } } } } fclose (fp); return -1; } /* * records the pid for service management purposes. * example: under Red Hat,Debian,etc pid is written to * /var/run/identd.pid * PID support suggested (and previously implemented) * by Alexander Reelsen. */ int m_register_pid (void) { #ifdef HAS_VAR_RUN FILE *fp; if ((fp = fopen (PID_FILE, "w")) == NULL) { syslog (LOG_WARNING, "couldn't record pid in %s: %s -- " "automatic shutdown with system not available", PID_FILE, strerror (errno)); return -1; } fprintf (fp, "%u\n", getpid ()); fclose (fp); #endif return 0; }