configure.in

Windows XP下的抓包程序实现

dnl @(#) $Header: /tcpdump/master/libpcap/configure.in,v 1.120.2.8 2006/04/07 07:08:50 guy Exp $ (LBL)
dnl
dnl Copyright (c) 1994, 1995, 1996, 1997
dnl	The Regents of the University of California.  All rights reserved.
dnl
dnl Process this file with autoconf to produce a configure script.
dnl

AC_REVISION($Revision: 1.120.2.8 $)
AC_PREREQ(2.50)
AC_INIT(pcap.c)

AC_CANONICAL_SYSTEM

AC_LBL_C_INIT(V_CCOPT, V_INCLS, V_LIBS)
AC_LBL_C_INLINE
AC_C___ATTRIBUTE__

AC_LBL_CHECK_TYPE(u_int8_t, u_char)
AC_LBL_CHECK_TYPE(u_int16_t, u_short)
AC_LBL_CHECK_TYPE(u_int32_t, u_int)

dnl
dnl libpcap doesn't itself use <sys/ioccom.h>; however, the test program
dnl in "AC_LBL_FIXINCLUDES" in "aclocal.m4" uses it, so we have to
dnl test for it and set "HAVE_SYS_IOCCOM_H" if we have it, otherwise
dnl "AC_LBL_FIXINCLUDES" won't work on some platforms such as Solaris.
dnl
AC_CHECK_HEADERS(sys/ioccom.h sys/sockio.h limits.h)
AC_CHECK_HEADERS(netinet/if_ether.h, , , [#include <sys/types.h>
#include <sys/socket.h>])
if test "$ac_cv_header_netinet_if_ether_h" != yes; then
	#
	# The simple test didn't work.
	# Do we need to include <net/if.h> first?
	# Unset ac_cv_header_netinet_if_ether_h so we don't
	# treat the previous failure as a cached value and
	# suppress the next test.
	#
	AC_MSG_NOTICE([Rechecking with some additional includes])
	unset ac_cv_header_netinet_if_ether_h
	AC_CHECK_HEADERS(netinet/if_ether.h, , , [#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
struct mbuf;
struct rtentry;
#include <net/if.h>])
fi

AC_LBL_FIXINCLUDES

AC_CHECK_FUNCS(strerror strlcpy)

needsnprintf=no
AC_CHECK_FUNCS(vsnprintf snprintf,,
	[needsnprintf=yes])
if test $needsnprintf = yes; then
	AC_LIBOBJ(snprintf)
fi

#
# Do this before checking for ether_hostton(), as it's a
# "gethostbyname() -ish function".
#
AC_LBL_LIBRARY_NET

#
# You are in a twisty little maze of UN*Xes, all different.
# Some might not have ether_hostton().
# Some might have it, but not declare it in any header file.
# Some might have it, but declare it in <netinet/if_ether.h>.
# Some might have it, but declare it in <netinet/ether.h>
# (And some might have it but document it as something declared in
# <netinet/ethernet.h>, although <netinet/if_ether.h> appears to work.)
#
# Before you is a C compiler.
#
AC_CHECK_FUNCS(ether_hostton)
if test "$ac_cv_func_ether_hostton" = yes; then
	#
	# OK, we have ether_hostton().  Do we have <netinet/if_ether.h>?
	#
	if test "$ac_cv_header_netinet_if_ether_h" = yes; then
		#
		# Yes.  Does it declare ether_hostton()?
		#
		AC_CHECK_DECL(ether_hostton,
		    [
			AC_DEFINE(NETINET_IF_ETHER_H_DECLARES_ETHER_HOSTTON,,
			    [Define to 1 if netinet/if_ether.h declares `ether_hostton'])
		    ],,
		    [
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
struct mbuf;
struct rtentry;
#include <net/if.h>
#include <netinet/if_ether.h>
		    ])
	fi
	#
	# Did that succeed?
	#
	if test "$ac_cv_have_decl_ether_hostton" != yes; then
		#
		# No, how about <netinet/ether.h>, as on Linux?
		#
		AC_CHECK_HEADERS(netinet/ether.h)
		if test "$ac_cv_header_netinet_ether_h" = yes; then
			#
			# We have it - does it declare ether_hostton()?
			# Unset ac_cv_have_decl_ether_hostton so we don't
			# treat the previous failure as a cached value and
			# suppress the next test.
			#
			unset ac_cv_have_decl_ether_hostton
			AC_CHECK_DECL(ether_hostton,
			    [
				AC_DEFINE(NETINET_ETHER_H_DECLARES_ETHER_HOSTTON,,
				    [Define to 1 if netinet/ether.h declares `ether_hostton'])
			    ],,
			    [
#include <netinet/ether.h>
			    ])
		fi
	fi
	#
	# Is ether_hostton() declared?
	#
	if test "$ac_cv_have_decl_ether_hostton" != yes; then
		#
		# No, we'll have to declare it ourselves.
		# Do we have "struct ether_addr"?
		#
		AC_CHECK_TYPES(struct ether_addr,,,
		    [
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
struct mbuf;
struct rtentry;
#include <net/if.h>
#include <netinet/if_ether.h>
		    ])
		AC_DEFINE(HAVE_DECL_ETHER_HOSTTON, 0,
		    [Define to 1 if you have the declaration of `ether_hostton', and to 0 if you
don't.])
	else
		AC_DEFINE(HAVE_DECL_ETHER_HOSTTON, 1,
		    [Define to 1 if you have the declaration of `ether_hostton', and to 0 if you
don't.])
	fi
fi

dnl to pacify those who hate protochain insn
AC_MSG_CHECKING(if --disable-protochain option is specified)
AC_ARG_ENABLE(protochain, [  --disable-protochain    disable \"protochain\" insn])
case "x$enable_protochain" in
xyes)	enable_protochain=enabled	;;
xno)	enable_protochain=disabled	;;
x)	enable_protochain=enabled	;;
esac

if test "$enable_protochain" = "disabled"; then
	AC_DEFINE(NO_PROTOCHAIN,1,[do not use protochain])
fi
AC_MSG_RESULT(${enable_protochain})

dnl
dnl Not all versions of test support -c (character special) but it's a
dnl better way of testing since the device might be protected. So we
dnl check in our normal order using -r and then check the for the /dev
dnl guys again using -c.
dnl
dnl XXX This could be done for cross-compiling, but for now it's not.
dnl
if test -z "$with_pcap" && test "$cross_compiling" = yes; then
	AC_MSG_ERROR(pcap type not determined when cross-compiling; use --with-pcap=...)
fi
AC_ARG_WITH(pcap, [  --with-pcap=TYPE        use packet capture TYPE])
AC_MSG_CHECKING(packet capture type)
if test ! -z "$with_pcap" ; then
	V_PCAP="$withval"
elif test -r /dev/bpf0 ; then
	V_PCAP=bpf
elif test -r /usr/include/net/pfilt.h ; then
	V_PCAP=pf
elif test -r /dev/enet ; then
	V_PCAP=enet
elif test -r /dev/nit ; then
	V_PCAP=snit
elif test -r /usr/include/sys/net/nit.h ; then
	V_PCAP=nit
elif test -r /usr/include/linux/socket.h ; then
	V_PCAP=linux
elif test -r /usr/include/net/raw.h ; then
	V_PCAP=snoop
elif test -r /usr/include/odmi.h ; then
	#
	# On AIX, the BPF devices might not yet be present - they're
	# created the first time libpcap runs after booting.
	# We check for odmi.h instead.
	#
	V_PCAP=bpf
elif test -r /usr/include/sys/dlpi.h ; then
	V_PCAP=dlpi
elif test -c /dev/bpf0 ; then		# check again in case not readable
	V_PCAP=bpf
elif test -c /dev/enet ; then		# check again in case not readable
	V_PCAP=enet
elif test -c /dev/nit ; then		# check again in case not readable
	V_PCAP=snit
else
	V_PCAP=null
fi
AC_MSG_RESULT($V_PCAP)

dnl
dnl Now figure out how we get a list of interfaces and addresses,
dnl if we support capturing.  Don't bother if we don't support
dnl capturing.
dnl
if test "$V_PCAP" = null
then
	#
	# We can't capture, so we can't open any capture
	# devices, so we won't return any interfaces.
	#
	V_FINDALLDEVS=null
else
	AC_CHECK_FUNC(getifaddrs,[
		#
		# We have "getifaddrs()"; make sure we have <ifaddrs.h>
		# as well, just in case some platform is really weird.
		#
		AC_CHECK_HEADER(ifaddrs.h,[
		    #
		    # We have the header, so we use "getifaddrs()" to
		    # get the list of interfaces.
		    #
		    V_FINDALLDEVS=getad
		],[
		    #
		    # We don't have the header - give up.
		    # XXX - we could also fall back on some other
		    # mechanism, but, for now, this'll catch this
		    # problem so that we can at least try to figure
		    # out something to do on systems with "getifaddrs()"
		    # but without "ifaddrs.h", if there is something
		    # we can do on those systems.
		    #
		    AC_MSG_ERROR([Your system has getifaddrs() but doesn't have a usable <ifaddrs.h>.])
		])
	],[
		#
		# Well, we don't have "getifaddrs()", so we have to use
		# some other mechanism; determine what that mechanism is.
		#
		# The first thing we use is the type of capture mechanism,
		# which is somewhat of a proxy for the OS we're using.
		#
		case "$V_PCAP" in

		dlpi)
			#
			# This might be Solaris 8 or later, with
			# SIOCGLIFCONF, or it might be some other OS
			# or some older version of Solaris, with
			# just SIOCGIFCONF.
			#
			AC_MSG_CHECKING(whether we have SIOCGLIFCONF)
			AC_CACHE_VAL(ac_cv_lbl_have_siocglifconf,
			    AC_TRY_COMPILE(
				[#include <sys/param.h>
				#include <sys/file.h>
				#include <sys/ioctl.h>
				#include <sys/socket.h>
				#include <sys/sockio.h>],
				[ioctl(0, SIOCGLIFCONF, (char *)0);],
				ac_cv_lbl_have_siocglifconf=yes,
				ac_cv_lbl_have_siocglifconf=no))
			AC_MSG_RESULT($ac_cv_lbl_have_siocglifconf)
			if test $ac_cv_lbl_have_siocglifconf = yes ; then
				V_FINDALLDEVS=glifc
			else
				V_FINDALLDEVS=gifc
			fi
			;;

		*)
			#
			# Assume we just have SIOCGIFCONF.
			# (XXX - on at least later Linux kernels, there's
			# another mechanism, and we should be using that
			# instead.)
			#
			V_FINDALLDEVS=gifc
			;;
		esac])
fi

dnl HAVE_REMOTE
AC_MSG_CHECKING(if --disable-remote option is specified)
AC_ARG_ENABLE(remote, [  --disable-remote        disable remote capture capabilities])

case "x$enable_remote" in
xyes)	enable_remote=enabled	;;
xno)	enable_remote=disabled	;;
x)	enable_remote=enabled	;;
esac

AC_MSG_RESULT(${enable_remote})


if test "$enable_remote" = "enabled"; then

	dnl
	dnl Checking if the remote features of libpcap are supported by
	dnl the OS and must be compiled
	dnl
	
	AC_MSG_CHECKING(if remote capture is supported)
	
	if test -e ./remote-ext.h ; then	# Check that the remote extensions are there
	
		case "$V_PCAP" in
		
		linux)
			V_REMOTE_FILES="pcap-new.c pcap-remote.c sockutils.c"
			V_HAVE_REMOTE="-DHAVE_REMOTE"
			AC_DEFINE(HAVE_REMOTE,1,[Enable remote capture support])
			have_remote=yes
			;;
		
		bpf)
			V_REMOTE_FILES="pcap-new.c pcap-remote.c sockutils.c"
			V_HAVE_REMOTE="-DHAVE_REMOTE"
			AC_DEFINE(HAVE_REMOTE,1,[Enable remote capture support])
			have_remote=yes
			;;
		
		*)
			have_remote=no
			;;
		
		esac
	
	AC_MSG_RESULT(${have_remote})
	fi

fi
dnl END HAVE_REMOTE

AC_MSG_CHECKING(if --enable-ipv6 option is specified)
AC_ARG_ENABLE(ipv6, [  --enable-ipv6           build IPv6-capable version])
if test "$enable_ipv6" = "yes"; then
	AC_DEFINE(INET6,1,[IPv6])
fi
AC_MSG_RESULT(${enable_ipv6-no})

AC_MSG_CHECKING(whether to build optimizer debugging code)
AC_ARG_ENABLE(optimizer-dbg, [  --enable-optimizer-dbg  build optimizer debugging code])
if test "$enable_optimizer_dbg" = "yes"; then
	AC_DEFINE(BDEBUG,1,[Enable optimizer debugging])
fi
AC_MSG_RESULT(${enable_optimizer_dbg-no})

AC_MSG_CHECKING(whether to build parser debugging code)
AC_ARG_ENABLE(yydebug, [  --enable-yydebug        build parser debugging code])
if test "$enable_yydebug" = "yes"; then
	AC_DEFINE(YYDEBUG,1,[Enable parser debugging])
fi
AC_MSG_RESULT(${enable_yydebug-no})

case "$V_PCAP" in

dlpi)
	AC_CHECK_HEADERS(sys/bufmod.h sys/dlpi_ext.h)
	AC_MSG_CHECKING(for /dev/dlpi device)
	if test -c /dev/dlpi ; then
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_DEV_DLPI, 1, [define if you have a /dev/dlpi])
	else
		AC_MSG_RESULT(no)
		dir="/dev/dlpi"
		AC_MSG_CHECKING(for $dir directory)
		if test -d $dir ; then
			AC_MSG_RESULT(yes)
			AC_DEFINE_UNQUOTED(PCAP_DEV_PREFIX, "$dir", [/dev/dlpi directory])
		else
			AC_MSG_RESULT(no)
		fi
	fi
	;;

linux)
	AC_MSG_CHECKING(Linux kernel version)
 	if test "$cross_compiling" = yes; then
 		AC_CACHE_VAL(ac_cv_linux_vers,
 		    ac_cv_linux_vers=unknown)
 	else
 		AC_CACHE_VAL(ac_cv_linux_vers,
 		    ac_cv_linux_vers=`uname -r 2>&1 | \
 			sed -n -e '$s/.* //' -e '$s/\..*//p'`)
 	fi
	AC_MSG_RESULT($ac_cv_linux_vers)
 	if test $ac_cv_linux_vers = unknown ; then
 		AC_MSG_ERROR(cannot determine linux version when cross-compiling)
 	fi
	if test $ac_cv_linux_vers -lt 2 ; then
		AC_MSG_ERROR(version 2 or higher required; see the INSTALL doc for more info)
	fi
	AC_LBL_TPACKET_STATS
	;;

dag)
	V_DEFS="$V_DEFS -DDAG_ONLY"
	;;

septel)
	V_DEFS="$V_DEFS -DSEPTEL_ONLY"
	;;

null)