"Fossies" - the Fresh Open Source Software Archive  

Source code changes of the file "configure.in" between
ngrep-1_45.tar.gz and ngrep-1_47.tar.gz

About: ngrep (network grep) applies GNU grep’s common features to the network layer.

configure.in  (ngrep-1_45)	:	configure.in  (ngrep-1_47)
dnl		dnl
dnl $Id$		dnl Copyright (c) 2017 Jordan Ritter <jpr5@darkridge.com>
dnl
dnl Copyright (c) 2001 Jordan Ritter <jpr5@darkridge.com>
dnl		dnl
dnl Please refer to the LICENSE file for more information.		dnl Please refer to the LICENSE file for more information.
dnl		dnl
dnl NOTE: configure.in requires autoconf 2.57 or more recent.		dnl NOTE: configure.in requires autoconf 2.57 or more recent.
AC_INIT(ngrep.c)		AC_INIT(ngrep.c)
echo		AC_MSG_RESULT
echo 'Configuring System ...'		AC_MSG_RESULT(Configuring System ...)
echo		AC_MSG_RESULT
AC_CANONICAL_SYSTEM		AC_CANONICAL_SYSTEM
AC_PROG_CC		AC_PROG_CC
AC_HEADER_STDC		AC_HEADER_STDC
AC_PREFIX_DEFAULT(/usr/local)		AC_PREFIX_DEFAULT(/usr/local)
if test -n "`which tcpdump 2> /dev/null`"; then		if test -n "`which tcpdump 2> /dev/null`"; then
AC_PREFIX_PROGRAM(tcpdump)		AC_PREFIX_PROGRAM(tcpdump)
fi		fi
dnl
dnl The following are globals that we tack on to the associated
dnl variables in the makefile. They get AC_SUBST'd at the end.
dnl
EXTRA_DEFINES=""		EXTRA_DEFINES=""
EXTRA_INCLUDES=""		EXTRA_INCLUDES=""
		EXTRA_LDFLAGS=""
		EXTRA_OBJS=""
EXTRA_LIBS=""		EXTRA_LIBS=""
dnl		dnl
dnl Define the arguments that we accept.		dnl Define the arguments that we accept. Parse them first.
dnl		dnl
dnl		dnl
dnl For libpcap's that don't need the restart function called for
dnl multiple lexer passes, allow them to turn it off here. This option
dnl exists solely to address a very rude email from the maintainer
dnl indicating that it shouldn't be called directly (and of course he
dnl was wrong because this is still needed).
dnl
AC_ARG_ENABLE(pcap-restart,
[ --disable-pcap-restart disable libpcap restart in parser],
[
use_pcap_restart="$enableval"
],
[
use_pcap_restart="yes"
])
if test $use_pcap_restart = yes; then
USE_PCAP_RESTART="1"
else
USE_PCAP_RESTART="0"
fi
dnl
dnl Allow user to specify alternate ``nobody'' user.		dnl Allow user to specify alternate ``nobody'' user.
dnl		dnl
AC_ARG_WITH(dropprivs-user,		AC_ARG_WITH(dropprivs-user,
[ --with-dropprivs-user[=user] use different user for dropprivs],		[ --with-dropprivs-user[=user] use different user for dropprivs],
[		[
DROPPRIVS_USER="$withval"		DROPPRIVS_USER="$withval"
],		],
[		[
DROPPRIVS_USER="nobody"		DROPPRIVS_USER="nobody"
])		])
dnl		dnl
dnl Enable or disable the drop privileges logic.		dnl Enable or disable the drop privileges logic.
dnl		dnl
skipping to change at line 113		skipping to change at line 85
use_ipv6="no"		use_ipv6="no"
])		])
if test $use_ipv6 = yes; then		if test $use_ipv6 = yes; then
USE_IPv6="1"		USE_IPv6="1"
else		else
USE_IPv6="0"		USE_IPv6="0"
fi		fi
dnl		dnl
dnl Configure the regular expression library.		dnl PCAP BPF filter expression lexer bugfix
		dnl
		dnl Typically ngrep is invoked with a (optional) search string plus a BPF
		dnl filter. However, ngrep doesn't semantically understand BPF filter terms
		dnl itself, so it assumes the first non-option parameter is the search string,
		dnl and attempts to compile the remainder as the BPF filter expression. If the
		dnl compilation fails, it probably means that no search string was specified, so
		dnl it restarts the BPF filter expression lexer and attempts to compile the
		dnl entire non-option parameter string as the expression. If that fails, then
		dnl the specified BPF filter expression is definitely bogus and ngrep errors
		dnl out.
		dnl
		dnl I favored this approach because it made invocation simpler & more fluid. In
		dnl order to make it work however, I had to solve for a bug in older versions of
		dnl libpcap where the library would segfault if the BPF filter compilation
		dnl function was invoked more than once. The workaround turned out to be a
		dnl simple invocation of the lexer's restart function in between compilation
		dnl invocations, however that function wasn't normally exposed in the header
		dnl since it was an internal built-in of whatever grammar lexer libpcap had
		dnl compiled with (bison/yacc/etc).
		dnl
		dnl The default behavior has long been to restart the lexer (keeping invocation
		dnl simpler) and provide a compile-time option to disable the mechanism, if
		dnl anyone cared to. Based on a more recent bug report however[1], it seems
		dnl that the newer libpcap breaks when the lexer restart function is called.
		dnl So, given the choice between old platforms working by default (always call
		dnl restart/allow disablement at compile-time) vs. newer platforms working by
		dnl default (never call restart/allow enablement at compile-time), the default
		dnl behavior now is to do the latter.
		dnl
		dnl For versions of libpcap that require restart function invocation in between
		dnl multiple lexer passes, allow them to enable it here.
		dnl
		dnl [1] https://github.com/jpr5/ngrep/issues/2
dnl		dnl
AC_ARG_ENABLE(pcre,		AC_ARG_ENABLE(pcap-restart,
[ --enable-pcre use PCRE instead of GNU regex],		[ --enable-pcap-restart enable BPF lexer restart bugfix for older versions of
		PCAP (default off)],
[		[
use_pcre="$enableval"		use_pcap_restart="$enableval"
],		],
[		[
use_pcre="no"		use_pcap_restart="no"
])		])
if test $use_pcre = yes; then		if test $use_pcap_restart = yes; then
		USE_PCAP_RESTART="1"
		else
		USE_PCAP_RESTART="0"
		fi
		dnl
		dnl Configure the regular expression library.
		dnl
		REGEX_DIR=''
		REGEX_OBJS=''
echo		AC_ARG_ENABLE(pcre,
echo 'Configuring Perl-Compatible Regular Expression (PCRE) library ...'		[ --enable-pcre use PCRE instead of GNU regex (default GNU)],
echo		[ use_pcre="$enableval" ],
		[ use_pcre="no" ])
REGEX_DIR='pcre-5.0'		if test use_pcre = yes; then
REGEX_OBJS="$REGEX_DIR/pcre.o $REGEX_DIR/study.o"
USE_PCRE="1"		USE_PCRE="1"
		EXTRA_LIBS="$EXTRA_LIBS -lpcre"
else		else
		USE_PCRE="0"
echo		AC_MSG_RESULT
echo 'Configuring GNU Regular Expression library ...'		AC_MSG_RESULT(Configuring GNU Regular Expression library ...)
echo		AC_MSG_RESULT
REGEX_DIR='regex-0.12'		REGEX_DIR='regex-0.12'
REGEX_OBJS="$REGEX_DIR/regex.o"		REGEX_OBJS="$REGEX_DIR/regex.o"
USE_PCRE="0"
fi		( cd $REGEX_DIR && ./configure )
( cd $REGEX_DIR && ./configure )		EXTRA_INCLUDES="$EXTRA_INCLUDES -I$REGEX_DIR"
		fi
AC_SUBST(REGEX_DIR)		AC_SUBST(REGEX_DIR)
AC_SUBST(REGEX_OBJS)		AC_SUBST(REGEX_OBJS)
echo
echo 'Configuring Network Grep (ngrep) ...'
echo
dnl		dnl
dnl OS-specific options		dnl tcpkill/libnet support (from Debian patch)
dnl		dnl
STRIPFLAG="-s"		AC_ARG_ENABLE(tcpkill,
HAVE_DUMB_UDPHDR="0"		[ --enable-tcpkill enable connection killing support (default off)],
		[
		AC_CHECK_LIB(net, libnet_init_packet,,echo !!! error: tcpkill feature enabled
		but no libnet found; exit)
		use_tcpkill="$enableval"
		],
		[ use_tcpkill="no" ])
case "$target_os" in		if test $use_tcpkill = yes; then
		USE_TCPKILL="1"
		EXTRA_OBJS="$EXTRA_OBJS tcpkill.o"
		EXTRA_DEFINES="$EXTRA_DEFINES $(libnet-config --defines)"
		EXTRA_LIBS="$EXTRA_LIBS $(libnet-config --libs)"
		else
		USE_TCPKILL="0"
		fi
*linux*)		AC_ARG_ENABLE(vlan-hack,
AC_SUBST(OS, LINUX)		[ --disable-vlan-hack disable automatic inclusion of VLAN frames (default o
		n)],
		[use_vlan_hack="$enableval"],
		[use_vlan_hack="yes"])
AC_MSG_CHECKING(for a broken redhat glibc udphdr declaration)		if test $use_vlan_hack = yes; then
AC_TRY_COMPILE([		USE_VLAN_HACK="1"
#ifndef __FAVOR_BSD		else
#define __FAVOR_BSD		USE_VLAN_HACK="0"
#endif		fi
#ifndef _BSD_SOURCE		AC_ARG_WITH(pcap-includes,
#define _BSD_SOURCE 1		[ --with-pcap-includes=dir specify the pcap include directory],
#endif		[PCAP_DIR=$withval],
		[
		PCAP_DIR="`eval echo -n ${includedir}` \
		/usr/include /usr/include/pcap \
		/usr/local/include /usr/local/include/pcap \
		/opt/local/include /opt/local/include/pcap \
		/usr/share/include /usr/share/include/pcap"
		])
#undef _GNU_SOURCE		AC_MSG_RESULT
		AC_MSG_RESULT(Configuring Network Grep ...)
		AC_MSG_RESULT
#include <netinet/udp.h>		dnl
],[		dnl OS-specific options
struct udphdr foo;		dnl
unsigned short bar = foo.source;
],
HAVE_DUMB_UDPHDR="1" && echo "yes",
HAVE_DUMB_UDPHDR="0" && echo "no")
;;		STRIPFLAG="-s"
*bsd*)		case "$target_os" in
AC_SUBST(OS, BSD)
if test "$USE_PCAP_RESTART" = "0"; then		*linux*)
		AC_SUBST(OS, LINUX)
AC_MSG_WARN(		;;
Your OS ($target_os) may have an old libpcap installation.
If the resulting ngrep binary segfaults when a BPF filter is specified
without an ngrep match string then you should reconfigure ngrep with
the option ``--disable-pcap-restart''.
)
sleep 3
fi		*bsd*)
		AC_SUBST(OS, BSD)
;;		;;
*solaris*)		*solaris*)
AC_SUBST(OS, SOLARIS)		AC_SUBST(OS, SOLARIS)
AC_CHECK_LIB(socket, socket,,		AC_CHECK_LIB(socket, socket,,
echo no socket in -lsocket\?; exit)		[AC_MSG_ERROR(no socket in -lsocket)])
AC_CHECK_LIB(nsl, gethostbyname,,		AC_CHECK_LIB(nsl, gethostbyname,,
echo no gethostbyname in -lnsl\?; exit)		[AC_MSG_ERROR(no gethostbyname in -lnsl)])
EXTRA_LIBS="$EXTRA_LIBS -lnsl -lsocket"		EXTRA_LIBS="$EXTRA_LIBS -lnsl -lsocket"
;;		;;
*osf*)		*osf*)
AC_SUBST(OS, OSF1)		AC_SUBST(OS, OSF1)
EXTRA_DEFINES="$EXTRA_DEFINES -D__STDC__=2"		EXTRA_DEFINES="$EXTRA_DEFINES -D__STDC__=2"
;;		;;
*hpux11*)		*hpux11*)
AC_SUBST(OS, BSD)		AC_SUBST(OS, BSD)
;;		;;
*aix*)		*aix*)
AC_SUBST(OS, AIX)		AC_SUBST(OS, AIX)
;;		;;
*darwin*)		*darwin*)
AC_SUBST(OS, MACOSX)		AC_SUBST(OS, MACOSX)
STRIPFLAG=""		STRIPFLAG=""
;;		;;
*)		*)
AC_SUBST(OS, UNKNOWN_OS)		AC_SUBST(OS, UNKNOWN_OS)
AC_MSG_WARN(		AC_MSG_WARN(
Your OS ($target_os) is not supported yet.		Your OS ($target_os) is not supported yet.
Try playing with the build host and target options.		Try playing with the build host and target options.
)		)
sleep 3		sleep 3
;;		;;
esac		esac
AC_SUBST(STRIPFLAG)		AC_SUBST(STRIPFLAG)
EXTRA_DEFINES="$EXTRA_DEFINES -D_BSD_SOURCE=1 -D__FAVOR_BSD=1"		EXTRA_DEFINES="$EXTRA_DEFINES -D_BSD_SOURCE=1 -D__FAVOR_BSD=1"
dnl		dnl
dnl First find some usable PCAP headers.		dnl Quick Background:
		dnl
		dnl A long time ago, the libpcap team decided to change the functionality split
		dnl and installation location of their header files. Consequently, installing
		dnl the prior version's headers, followed by the newer version's, would result
		dnl in two sets of different but similarly-named headers. This broke a lot of
		dnl packages, since most developers just included <pcap.h> in their programs.
		dnl Many (including ngrep) addressed the problem by detecting this condition and
		dnl alerting the user to fix it manually. Eventually the libpcap team decided
		dnl to add back in the top-level pcap.h, presumably to rectify the hassle.
		dnl
		dnl On modern Linux distros, checking for this condition likely doesn't matter
		dnl anymore. However, ngrep targets a much broader range of (older) OSes, so
		dnl it's still a possibility. The re-addition of a top-level pcap.h confounds
		dnl the old header presence check, so I've updated it to search for the version,
		dnl PCAP_VERSION_MAJOR. Maybe I'll delete it in another 5 years. ;-)
dnl		dnl
AC_MSG_CHECKING(for a complete set of pcap headers)		AC_MSG_CHECKING(for a complete set of pcap headers)
possible_dirs="`eval echo -n ${includedir}` \		pcap_base=""
/usr/include /usr/include/pcap \		for dir in $PCAP_DIR ; do
/usr/local/include /usr/local/include/pcap \		if test -d $dir -a -r "$dir/pcap.h"; then
/usr/share/include /usr/share/include/pcap"
AC_ARG_WITH(pcap-includes,		AC_EGREP_HEADER([PCAP_VERSION_MAJOR], [$dir/pcap.h], [found=$dir], [found
[ --with-pcap-includes specify the pcap include directory],		=""])
[PCAP_DIR=$withval],
[PCAP_DIR=$possible_dirs])
pcap_dir=""		if test -n "$found" -a "$found" != "$pcap_base"; then
for dir in $PCAP_DIR ; do		AC_MSG_RESULT
if test -d $dir -a -r "$dir/pcap.h" ; then		AC_MSG_RESULT
if test -n "$pcap_dir" -a "$pcap_dir" != "$dir"; then		AC_MSG_RESULT(more than one set found in:)
echo		AC_MSG_RESULT( $pcap_base)
echo; echo more than one set found in:		AC_MSG_RESULT( $found)
echo $pcap_dir		AC_MSG_RESULT
echo $dir		AC_MSG_ERROR(please wipe out all unused pcap installations)
echo; echo please wipe out all unused pcap installations
exit
else		else
pcap_dir="$dir"		pcap_base="$dir"
fi		fi
fi		fi
done		done
if test -z "$pcap_dir" ; then		if test -z "$pcap_base" ; then
echo no; echo !!! couldn\'t find a complete set of pcap headers		AC_MSG_RESULT(no)
exit		AC_MSG_ERROR(could not find a complete set of pcap headers)
else		else
echo found $pcap_dir		AC_MSG_RESULT(found $pcap_base)
		EXTRA_INCLUDES="$EXTRA_INCLUDES -I$pcap_base"
		dnl Best-effort; newer ld warns on missing dirs.
		DIR="`dirname $pcap_base`/lib"
		if test -d $DIR; then
		EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L$DIR"
		fi
		fi
PCAP_INCLUDE="-I$pcap_dir"		dnl
PCAP_LINK="-L`dirname $pcap_dir`/lib"		dnl Check for a working PCAP library we can link against..
		dnl
		AC_CHECK_LIB(pcap, pcap_open_live,,[AC_MSG_ERROR(a viable pcap lib is required)]
		)
		dnl
		dnl And the PCAP restart function.
		dnl
AC_SUBST(PCAP_INCLUDE)		if test "$USE_PCAP_RESTART" = "1"; then
AC_SUBST(PCAP_LINK)		PCAP_RESTART_FUNC="unused"
		for func in pcap_restart pcap_yyrestart yyrestart; do
		AC_CHECK_LIB(pcap, $func, found="$func")
		if test -n "$found"; then
		USE_PCAP_RESTART="1"
		PCAP_RESTART_FUNC="$found"
		break
		fi
		done
		if test "$PCAP_RESTART_FUNC" = "unused"; then
		AC_MSG_ERROR(BPF lexer restart fix requested, but no restart function fo
		und)
		fi
fi		fi
dnl		dnl
dnl Next figure out which bpf header file to look at.		dnl Next figure out which bpf header file to look at.
dnl		dnl
AC_MSG_CHECKING(for BPF include path)		AC_MSG_CHECKING(for BPF include path)
BPF=`/usr/bin/perl -ne '/include\s+<(.*bpf\.h)>/ && print "$1\n"' $pcap_dir/pcap		BPF=`/usr/bin/perl -ne '/include\s+<(.*bpf\.h)>/ && print "$1\n"' $pcap_base/pca
.h`		p.h`
echo $BPF		AC_MSG_RESULT($BPF)
dnl		dnl
dnl Check for DLT_* types that might not have existed in older		dnl Check for DLT_* types that might not have existed in older
dnl libpcap's		dnl libpcap's
dnl		dnl
present=""		present=""
AC_MSG_CHECKING(for DLT_LINUX_SLL in bpf.h)		AC_MSG_CHECKING(for DLT_LINUX_SLL in $BPF)
AC_EGREP_CPP(yes,		AC_EGREP_CPP(yes,
[		[
#include <$BPF>		#include <$BPF>
#ifdef DLT_LINUX_SLL		#ifdef DLT_LINUX_SLL
yes		yes
#endif		#endif
],		],
[HAVE_DLT_LINUX_SLL="1" && echo yes], [HAVE_DLT_LINUX_SLL="0" && echo no])		[HAVE_DLT_LINUX_SLL="1" && AC_MSG_RESULT(yes)], [HAVE_DLT_LINUX_SLL="0" && AC_MS G_RESULT(no)])
present=""		present=""
AC_MSG_CHECKING(for DLT_LOOP in bpf.h)		AC_MSG_CHECKING(for DLT_LOOP in $BPF)
AC_EGREP_CPP(yes,		AC_EGREP_CPP(yes,
[		[
#include <$BPF>		#include <$BPF>
#ifdef DLT_LOOP		#ifdef DLT_LOOP
yes		yes
#endif		#endif
],		],
[HAVE_DLT_LOOP="1" && echo yes], [HAVE_DLT_LOOP="0" && echo no])		[HAVE_DLT_LOOP="1" && AC_MSG_RESULT(yes)], [HAVE_DLT_LOOP="0" && AC_MSG_RESULT(n o)])
present=""		present=""
AC_MSG_CHECKING(for DLT_IEEE802_11 in bpf.h)		AC_MSG_CHECKING(for DLT_IEEE802_11 in $BPF)
AC_EGREP_CPP(yes,		AC_EGREP_CPP(yes,
[		[
#include <$BPF>		#include <$BPF>
#ifdef DLT_IEEE802_11		#ifdef DLT_IEEE802_11
yes		yes
#endif		#endif
],		],
[HAVE_DLT_IEEE802_11="1" && echo yes], [HAVE_DLT_IEEE802_11="0" && echo no])		[HAVE_DLT_IEEE802_11="1" && AC_MSG_RESULT(yes)], [HAVE_DLT_IEEE802_11="0" && AC_ MSG_RESULT(no)])
present=""		present=""
AC_MSG_CHECKING(for DLT_IEEE802_11_RADIO in bpf.h)		AC_MSG_CHECKING(for DLT_IEEE802_11_RADIO in $BPF)
AC_EGREP_CPP(yes,		AC_EGREP_CPP(yes,
[		[
#include <$BPF>		#include <$BPF>
#ifdef DLT_IEEE802_11_RADIO		#ifdef DLT_IEEE802_11_RADIO
yes		yes
#endif		#endif
],		],
[HAVE_DLT_IEEE802_11_RADIO="1" && echo yes], [HAVE_DLT_IEEE802_11_RADIO="0" && e cho no])		[HAVE_DLT_IEEE802_11_RADIO="1" && AC_MSG_RESULT(yes)], [HAVE_DLT_IEEE802_11_RADI O="0" && AC_MSG_RESULT(no)])
present=""		present=""
AC_MSG_CHECKING(for DLT_RAW in bpf.h)		AC_MSG_CHECKING(for DLT_RAW in $BPF)
AC_EGREP_CPP(yes,		AC_EGREP_CPP(yes,
[		[
#include <$BPF>		#include <$BPF>
#ifdef DLT_RAW		#ifdef DLT_RAW
yes		yes
#endif		#endif
],		],
[HAVE_DLT_RAW="1" && echo yes], [HAVE_DLT_RAW="0" && echo no])		[HAVE_DLT_RAW="1" && AC_MSG_RESULT(yes)], [HAVE_DLT_RAW="0" && AC_MSG_RESULT(no)
		])
		present=""
		AC_MSG_CHECKING(for DLT_PFLOG in $BPF)
		AC_EGREP_CPP(yes,
		[
		#include <$BPF>
		#ifdef DLT_PFLOG
		yes
		#endif
		],
		[HAVE_DLT_PFLOG="1" && AC_MSG_RESULT(yes)], [HAVE_DLT_PFLOG="0" && AC_MSG_RESULT
		(no)])
		present=""
		AC_MSG_CHECKING(for DLT_IPNET in $BPF)
		AC_EGREP_CPP(yes,
		[
		#include <$BPF>
		#ifdef DLT_IPNET
		yes
		#endif
		],
		[HAVE_DLT_IPNET="1" && AC_MSG_RESULT(yes)], [HAVE_DLT_IPNET="0" && AC_MSG_RESULT
		(no)])
dnl		dnl
dnl Now that we're past the OS-specific stuff, which could have		dnl Now that we're past the OS-specific stuff, which could have
dnl modified our USE_* and other defines, define them all now.		dnl modified our USE_* and other defines, define them all now.
dnl		dnl
AC_DEFINE_UNQUOTED(USE_PCAP_RESTART, $USE_PCAP_RESTART, [wheth		AC_DEFINE_UNQUOTED(USE_PCAP_RESTART, $USE_PCAP_RESTART, [wheth
er to call pcap_restart() before subsequent invocations of pcap_compile() (defau		er to call the BPF lexer restart function between multiple BPF filter compilatio
lt yes)])		n attempts (default no)])
		AC_DEFINE_UNQUOTED(PCAP_RESTART_FUNC, $PCAP_RESTART_FUNC, [routi
		ne used for restarting the BPF lexer])
AC_DEFINE_UNQUOTED(USE_PCRE, $USE_PCRE, [wheth er to use PCRE (default GNU Regex)])		AC_DEFINE_UNQUOTED(USE_PCRE, $USE_PCRE, [wheth er to use PCRE (default GNU Regex)])
AC_DEFINE_UNQUOTED(USE_IPv6, $USE_IPv6, [wheth er to use IPv6 (default off)])		AC_DEFINE_UNQUOTED(USE_IPv6, $USE_IPv6, [wheth er to use IPv6 (default off)])
		AC_DEFINE_UNQUOTED(USE_TCPKILL, $USE_TCPKILL, [wheth
		er to enable tcpkill functionality (default off)])
		AC_DEFINE_UNQUOTED(USE_VLAN_HACK, $USE_VLAN_HACK, [wheth
		er to automatically include VLAN frames (default on)])
AC_DEFINE_UNQUOTED(USE_DROPPRIVS, $USE_DROPPRIVS, [wheth er to use privileges dropping (default yes)])		AC_DEFINE_UNQUOTED(USE_DROPPRIVS, $USE_DROPPRIVS, [wheth er to use privileges dropping (default yes)])
AC_DEFINE_UNQUOTED(DROPPRIVS_USER, "$DROPPRIVS_USER", [pseud o-user for running ngrep (default "nobody")])		AC_DEFINE_UNQUOTED(DROPPRIVS_USER, "$DROPPRIVS_USER", [pseud o-user for running ngrep (default "nobody")])
AC_DEFINE_UNQUOTED(HAVE_DUMB_UDPHDR, $HAVE_DUMB_UDPHDR, [wheth
er to accommodate broken redhat-glibc udphdr declaration (default no)])
AC_DEFINE_UNQUOTED(HAVE_DLT_RAW, $HAVE_DLT_RAW, [prese nce of DLT_RAW in bpf.h])		AC_DEFINE_UNQUOTED(HAVE_DLT_RAW, $HAVE_DLT_RAW, [prese nce of DLT_RAW in bpf.h])
		AC_DEFINE_UNQUOTED(HAVE_DLT_PFLOG, $HAVE_DLT_PFLOG, [prese nce of DLT_PFLOG in $BPF])
AC_DEFINE_UNQUOTED(HAVE_DLT_IEEE802_11, $HAVE_DLT_IEEE802_11, [prese nce of DLT_IEEE802_11 in bpf.h])		AC_DEFINE_UNQUOTED(HAVE_DLT_IEEE802_11, $HAVE_DLT_IEEE802_11, [prese nce of DLT_IEEE802_11 in bpf.h])
AC_DEFINE_UNQUOTED(HAVE_DLT_IEEE802_11_RADIO, $HAVE_DLT_IEEE802_11_RADIO, [prese nce of DLT_IEEE802_11_RADIO in bpf.h])		AC_DEFINE_UNQUOTED(HAVE_DLT_IEEE802_11_RADIO, $HAVE_DLT_IEEE802_11_RADIO, [prese nce of DLT_IEEE802_11_RADIO in bpf.h])
AC_DEFINE_UNQUOTED(HAVE_DLT_LOOP, $HAVE_DLT_LOOP, [prese nce of DLT_LOOP in bpf.h])		AC_DEFINE_UNQUOTED(HAVE_DLT_LOOP, $HAVE_DLT_LOOP, [prese nce of DLT_LOOP in bpf.h])
AC_DEFINE_UNQUOTED(HAVE_DLT_LINUX_SLL, $HAVE_DLT_LINUX_SLL, [prese nce of DLT_LINUX_SLL in bpf.h])		AC_DEFINE_UNQUOTED(HAVE_DLT_LINUX_SLL, $HAVE_DLT_LINUX_SLL, [prese nce of DLT_LINUX_SLL in bpf.h])
		AC_DEFINE_UNQUOTED(HAVE_DLT_IPNET, $HAVE_DLT_IPNET, [prese nce of DLT_IPNET in bpf.h])
dnl		dnl
dnl And the PCAP library..		dnl Merge our global tack-ons with autoconf's.
dnl
AC_CHECK_LIB(pcap, pcap_open_live,,echo need pcap lib; exit)
dnl
dnl And the PCAP restart function..
dnl
pcap_restart_func=""
if test "$use_pcap_restart" = "yes" ; then
AC_CHECK_LIB(pcap, pcap_restart, pcap_restart_func="pcap_restart",
AC_CHECK_LIB(pcap, pcap_yyrestart, pcap_restart_func="pcap_yyrestart",
AC_CHECK_LIB(pcap, yyrestart, pcap_restart_func="yyrestart",
echo no yacc restart func found
echo perhaps libpcap wasn\'t compiled with bison/flex\?
exit)))
fi
if test -z "$pcap_restart_func"; then
pcap_restart_func="unused"
fi
AC_DEFINE_UNQUOTED(PCAP_RESTART_FUNC, $pcap_restart_func, [routine used for rest
arting the PCAP lexer])
dnl
dnl AC_SUBST in the tack-on globals..
dnl		dnl
AC_SUBST(EXTRA_DEFINES)		AC_SUBST(EXTRA_DEFINES)
AC_SUBST(EXTRA_INCLUDES)		AC_SUBST(EXTRA_INCLUDES)
		AC_SUBST(EXTRA_LDFLAGS)
		AC_SUBST(EXTRA_OBJS)
AC_SUBST(EXTRA_LIBS)		AC_SUBST(EXTRA_LIBS)
dnl		dnl
dnl Emit configuration messages about any flags specified.		dnl Emit configuration messages about any flags specified.
dnl		dnl
echo		AC_MSG_RESULT
if test "$HAVE_DUMB_UDPHDR" = "1"; then		if test "$USE_PCAP_RESTART" = "1"; then
echo "CONFIG: support for broken redhat glibc udphdr enabled"		AC_MSG_RESULT([CONFIG: BPF filter lexer restart enabled (using $PCAP_RESTART
fi		_FUNC)])
if test "$USE_PCAP_RESTART" = "0"; then
echo "CONFIG: pcap restart logic disabled"
fi		fi
if test "$USE_IPv6" = "1"; then		if test "$USE_IPv6" = "1"; then
echo "CONFIG: ipv6 support enabled"		AC_MSG_RESULT(CONFIG: IPv6 support enabled)
else		else
echo "CONFIG: ipv6 support disabled"		AC_MSG_RESULT(CONFIG: IPv6 support disabled)
fi		fi
if test "$USE_DROPPRIVS" = "1"; then		if test "$USE_DROPPRIVS" = "1"; then
echo "CONFIG: privilege dropping enabled, using \"$DROPPRIVS_USER\""		AC_MSG_RESULT([CONFIG: privilege dropping enabled (using $DROPPRIVS_USER)])
else		else
echo "CONFIG: privilege dropping disabled"		AC_MSG_RESULT(CONFIG: privilege dropping DISABLED)
fi		fi
if test "$USE_PCRE" = "1"; then		if test "$USE_PCRE" = "1"; then
echo "CONFIG: using PCRE regex library"		AC_MSG_RESULT(CONFIG: using PCRE regex library)
		else
		AC_MSG_RESULT(CONFIG: using GNU regex library)
		fi
		if test "$USE_TCPKILL" = "1"; then
		AC_MSG_RESULT(CONFIG: tcpkill feature enabled)
		else
		AC_MSG_RESULT(CONFIG: tcpkill feature disabled)
		fi
		if test "$USE_VLAN_HACK" = "1"; then
		AC_MSG_RESULT(CONFIG: automatically including VLAN frames)
else		else
echo "CONFIG: using GNU regex library"		AC_MSG_RESULT(CONFIG: NOT automatically including VLAN frames)
fi		fi
dnl		dnl
dnl And we're done.		dnl And we're done. ALL YOUR BASE. Don't forget.
dnl		dnl
echo		AC_MSG_RESULT
AC_CONFIG_HEADERS(config.h)		AC_CONFIG_HEADERS(config.h)
AC_CONFIG_FILES(Makefile)		AC_CONFIG_FILES(Makefile)
AC_OUTPUT		AC_OUTPUT
End of changes. 91 change blocks.
204 lines changed or deleted		289 lines changed or added

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