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
#
# See
#
# http://ftp.gnu.org/gnu/config/README
#
# for the URLs to use to fetch new versions of config.guess and
# config.sub.
#
AC_PREREQ(2.61)
AC_INIT(tcpdump.c)
AC_CANONICAL_HOST
AC_LBL_C_INIT_BEFORE_CC(V_INCLS)
AC_PROG_CC
AC_LBL_C_INIT(V_CCOPT, V_INCLS)
AC_LBL_C_INLINE
AC_C___ATTRIBUTE__
if test "$ac_cv___attribute__" = "yes"; then
AC_C___ATTRIBUTE___UNUSED
AC_C___ATTRIBUTE___NORETURN_FUNCTION_POINTER
AC_C___ATTRIBUTE___FORMAT
if test "$ac_cv___attribute___format" = "yes"; then
AC_C___ATTRIBUTE___FORMAT_FUNCTION_POINTER
fi
fi
AC_CHECK_HEADERS(fcntl.h rpc/rpc.h rpc/rpcent.h netdnet/dnetdb.h)
AC_CHECK_HEADERS(net/pfvar.h, , , [#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>])
if test "$ac_cv_header_net_pfvar_h" = yes; then
AC_CHECK_HEADERS(net/if_pflog.h, , , [#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/pfvar.h>])
if test "$ac_cv_header_net_if_pflog_h" = yes; then
LOCALSRC="print-pflog.c $LOCALSRC"
fi
fi
AC_CHECK_HEADERS(netinet/if_ether.h, , , [#include <sys/types.h>
#include <sys/socket.h>])
if test "$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_HEADER_TIME
case "$host_os" in
darwin*)
AC_ARG_ENABLE(universal,
AC_HELP_STRING([--disable-universal],[don't build universal on OS X]))
if test "$enable_universal" != "no"; then
case "$host_os" in
darwin9.*)
#
# Leopard. Build for x86 and 32-bit PowerPC, with
# x86 first. (That's what Apple does.)
#
V_CCOPT="$V_CCOPT -arch i386 -arch ppc"
LDFLAGS="$LDFLAGS -arch i386 -arch ppc"
;;
darwin10.*)
#
# Snow Leopard. Build for x86-64 and x86, with
# x86-64 first. (That's what Apple does.)
#
V_CCOPT="$V_CCOPT -arch x86_64 -arch i386"
LDFLAGS="$LDFLAGS -arch x86_64 -arch i386"
;;
esac
fi
;;
esac
AC_ARG_WITH(smi,
[ --with-smi link with libsmi (allows to load MIBs on the fly to decode SNMP packets. [default=yes]
--without-smi don't link with libsmi],,
with_smi=yes)
if test "x$with_smi" != "xno" ; then
AC_CHECK_HEADER(smi.h,
[
#
# OK, we found smi.h. Do we have libsmi with smiInit?
#
AC_CHECK_LIB(smi, smiInit,
[
#
# OK, we have libsmi with smiInit. Can we use it?
#
AC_MSG_CHECKING([whether to enable libsmi])
savedlibs="$LIBS"
LIBS="-lsmi $LIBS"
AC_TRY_RUN(
[
/* libsmi available check */
#include <smi.h>
main()
{
int current, revision, age, n;
const int required = 2;
if (smiInit(""))
exit(1);
if (strcmp(SMI_LIBRARY_VERSION, smi_library_version))
exit(2);
n = sscanf(smi_library_version, "%d:%d:%d", ¤t, &revision, &age);
if (n != 3)
exit(3);
if (required < current - age || required > current)
exit(4);
exit(0);
}
],
[
AC_MSG_RESULT(yes)
AC_DEFINE(USE_LIBSMI, 1,
[Define if you enable support for libsmi])
],
[
dnl autoconf documentation says that
dnl $? contains the exit value.
dnl reality is that it does not.
dnl We leave this in just in case
dnl autoconf ever comes back to
dnl match the documentation.
case $? in
1) AC_MSG_RESULT(no - smiInit failed) ;;
2) AC_MSG_RESULT(no - header/library version mismatch) ;;
3) AC_MSG_RESULT(no - can't determine library version) ;;
4) AC_MSG_RESULT(no - too old) ;;
*) AC_MSG_RESULT(no) ;;
esac
LIBS="$savedlibs"
],
[
AC_MSG_RESULT(not when cross-compiling)
LIBS="$savedlibs"
]
)
])
])
fi
AC_MSG_CHECKING([whether to enable the possibly-buggy SMB printer])
AC_ARG_ENABLE(smb,
[ --enable-smb enable possibly-buggy SMB printer [default=yes]
--disable-smb disable possibly-buggy SMB printer],,
enableval=yes)
case "$enableval" in
yes) AC_MSG_RESULT(yes)
AC_WARN([The SMB printer may have exploitable buffer overflows!!!])
AC_DEFINE(ENABLE_SMB, 1,
[define if you want to build the possibly-buggy SMB printer])
LOCALSRC="print-smb.c smbutil.c $LOCALSRC"
;;
*) AC_MSG_RESULT(no)
;;
esac
AC_ARG_WITH(user, [ --with-user=USERNAME drop privileges by default to USERNAME])
AC_MSG_CHECKING([whether to drop root privileges by default])
if test ! -z "$with_user" ; then
AC_DEFINE_UNQUOTED(WITH_USER, "$withval",
[define if should drop privileges by default])
AC_MSG_RESULT(to \"$withval\")
else
AC_MSG_RESULT(no)
fi
AC_ARG_WITH(chroot, [ --with-chroot=DIRECTORY when dropping privileges, chroot to DIRECTORY])
AC_MSG_CHECKING([whether to chroot])
if test ! -z "$with_chroot" && test "$with_chroot" != "no" ; then
AC_DEFINE_UNQUOTED(WITH_CHROOT, "$withval",
[define if should chroot when dropping privileges])
AC_MSG_RESULT(to \"$withval\")
else
AC_MSG_RESULT(no)
fi
AC_ARG_WITH(sandbox-capsicum,
AS_HELP_STRING([--with-sandbox-capsicum],
[use Capsicum security functions @<:@default=yes, if available@:>@]))
#
# Check whether various functions are available. If any are, set
# ac_lbl_capsicum_function_seen to yes; if any are not, set
# ac_lbl_capsicum_function_not_seen to yes.
#
# We don't check cap_rights_init(), as it's a macro, wrapping another
# function, in at least some versions of FreeBSD, and AC_CHECK_FUNCS()
# doesn't handle that.
#
# All of the ones we check for must be available in order to enable
# capsicum sandboxing.
#
# XXX - do we need to check for all of them, or are there some that, if
# present, imply others are present?
#
if test ! -z "$with_sandbox-capsicum" && test "$with_sandbox-capsicum" != "no" ; then
AC_CHECK_FUNCS(cap_enter cap_rights_limit cap_ioctls_limit openat,
ac_lbl_capsicum_function_seen=yes,
ac_lbl_capsicum_function_not_seen=yes)
fi
AC_MSG_CHECKING([whether to sandbox using capsicum])
if test "x$ac_lbl_capsicum_function_seen" = "xyes" -a "x$ac_lbl_capsicum_function_not_seen" != "xyes"; then
AC_DEFINE(HAVE_CAPSICUM, 1, [capsicum support available])
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
#
# We must check this before checking whether to check the OS's IPv6,
# support because, on some platforms (such as SunOS 5.x), the test
# program requires the extra networking libraries.
#
AC_LBL_LIBRARY_NET
#
# Check whether AF_INET6 and struct in6_addr are defined.
# If they aren't both defined, we don't have sufficient OS
# support for IPv6, so we don't look for IPv6 support libraries,
# and we define AF_INET6 and struct in6_addr ourselves.
#
AC_MSG_CHECKING([whether the operating system supports IPv6])
AC_COMPILE_IFELSE(
[
AC_LANG_SOURCE(
[[
/* AF_INET6 available check */
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#ifdef AF_INET6
void
foo(struct in6_addr *addr)
{
memset(addr, 0, sizeof (struct in6_addr));
}
#else
#error "AF_INET6 not defined"
#endif
]])
],
[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_OS_IPV6_SUPPORT, 1,
[define if the OS provides AF_INET6 and struct in6_addr])
ipv6=yes
],
[
AC_MSG_RESULT(no)
ipv6=no
]
)
ipv6type=unknown
ipv6lib=none
ipv6trylibc=no
if test "$ipv6" = "yes"; then
AC_MSG_CHECKING([ipv6 stack type])
for i in inria kame linux-glibc linux-libinet6 toshiba v6d zeta; do
case $i in
inria)
dnl http://www.kame.net/
AC_EGREP_CPP(yes,
[#include <netinet/in.h>
#ifdef IPV6_INRIA_VERSION
yes
#endif],
[ipv6type=$i])
;;
kame)
dnl http://www.kame.net/
AC_EGREP_CPP(yes,
[#include <netinet/in.h>
#ifdef __KAME__
yes
#endif],
[ipv6type=$i;
ipv6lib=inet6;
ipv6libdir=/usr/local/v6/lib;
ipv6trylibc=yes])
;;
linux-glibc)
dnl http://www.v6.linux.or.jp/
AC_EGREP_CPP(yes,
[#include <features.h>
#if defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1
yes
#endif],
[ipv6type=$i])
;;
linux-libinet6)
dnl http://www.v6.linux.or.jp/
dnl
dnl This also matches Solaris 8 and Tru64 UNIX 5.1,
dnl and possibly other versions of those OSes
dnl
if test -d /usr/inet6 -o -f /usr/include/netinet/ip6.h; then
ipv6type=$i
ipv6lib=inet6
ipv6libdir=/usr/inet6/lib
ipv6trylibc=yes;
CFLAGS="-I/usr/inet6/include $CFLAGS"
fi
;;
toshiba)
AC_EGREP_CPP(yes,
[#include <sys/param.h>
#ifdef _TOSHIBA_INET6
yes
#endif],
[ipv6type=$i;
ipv6lib=inet6;
ipv6libdir=/usr/local/v6/lib])
;;
v6d)
AC_EGREP_CPP(yes,
[#include </usr/local/v6/include/sys/v6config.h>
#ifdef __V6D__
yes
#endif],
[ipv6type=$i;
ipv6lib=v6;
ipv6libdir=/usr/local/v6/lib;
CFLAGS="-I/usr/local/v6/include $CFLAGS"])
;;
zeta)
AC_EGREP_CPP(yes,
[#include <sys/param.h>
#ifdef _ZETA_MINAMI_INET6
yes
#endif],
[ipv6type=$i;
ipv6lib=inet6;
ipv6libdir=/usr/local/v6/lib])
;;
esac
if test "$ipv6type" != "unknown"; then
break
fi
done
AC_MSG_RESULT($ipv6type)
fi
if test "$ipv6" = "yes" -a "$ipv6lib" != "none"; then
if test -d $ipv6libdir -a -f $ipv6libdir/lib$ipv6lib.a; then
LIBS="-L$ipv6libdir -l$ipv6lib $LIBS"
echo "You have $ipv6lib library, using it"
else
if test "$ipv6trylibc" = "yes"; then
echo "You do not have $ipv6lib library, using libc"
else
echo 'Fatal: no $ipv6lib library found. cannot continue.'
echo "You need to fetch lib$ipv6lib.a from appropriate"
echo 'ipv6 kit and compile beforehand.'
exit 1
fi
fi
fi
AC_CACHE_CHECK([for dnet_htoa declaration in netdnet/dnetdb.h],
[td_cv_decl_netdnet_dnetdb_h_dnet_htoa],
[AC_EGREP_HEADER(dnet_htoa, netdnet/dnetdb.h,
td_cv_decl_netdnet_dnetdb_h_dnet_htoa=yes,
td_cv_decl_netdnet_dnetdb_h_dnet_htoa=no)])
if test "$td_cv_decl_netdnet_dnetdb_h_dnet_htoa" = yes; then
AC_DEFINE(HAVE_NETDNET_DNETDB_H_DNET_HTOA, 1,
[define if you have a dnet_htoa declaration in <netdnet/dnetdb.h>])
fi
AC_REPLACE_FUNCS(vfprintf strlcat strlcpy strdup strsep getopt_long)
AC_CHECK_FUNCS(fork vfork strftime)
AC_CHECK_FUNCS(setlinebuf alarm)
needsnprintf=no
AC_CHECK_FUNCS(vsnprintf snprintf,,
[needsnprintf=yes])
if test $needsnprintf = yes; then
AC_LIBOBJ(snprintf)
fi
AC_LBL_TYPE_SIGNAL
AC_SEARCH_LIBS(dnet_htoa, dnet,
AC_DEFINE(HAVE_DNET_HTOA, 1, [define if you have the dnet_htoa function]))
AC_CHECK_LIB(rpc, main) dnl It's unclear why we might need -lrpc
dnl Some platforms may need -lnsl for getrpcbynumber.
AC_SEARCH_LIBS(getrpcbynumber, nsl,
AC_DEFINE(HAVE_GETRPCBYNUMBER, 1, [define if you have getrpcbynumber()]))
AC_LBL_LIBPCAP(V_PCAPDEP, V_INCLS)
#
# Check for these after AC_LBL_LIBPCAP, so we link with the appropriate
# libraries (e.g., "-lsocket -lnsl" on Solaris).
#
# You are in a twisty little maze of UN*Xes, all different.
# Some might not have ether_ntohost().
# Some might have it, but not declare it in any header file.
# Some might have it, but declare it in <netinet/if_ether.h>.
# Some might have it, but declare it in <netinet/ether.h>
# (And some might have it but document it as something declared in
# <netinet/ethernet.h>, although <netinet/if_ether.h> appears to work.)
#
# Before you is a C compiler.
#
AC_CHECK_FUNCS(ether_ntohost, [
AC_CACHE_CHECK(for buggy ether_ntohost, ac_cv_buggy_ether_ntohost, [
AC_TRY_RUN([
#include <netdb.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
int
main(int argc, char **argv)
{
u_char ea[6] = { 0xff, 0xff, 0xff, 0xff, 0xff };
char name[MAXHOSTNAMELEN];
ether_ntohost(name, (struct ether_addr *)ea);
exit(0);
}
], [ac_cv_buggy_ether_ntohost=no],
[ac_cv_buggy_ether_ntohost=yes],
[ac_cv_buggy_ether_ntohost="not while cross-compiling"])])
if test "$ac_cv_buggy_ether_ntohost" = "no"; then
AC_DEFINE(USE_ETHER_NTOHOST, 1,
[define if you have ether_ntohost() and it works])
fi
])
if test "$ac_cv_func_ether_ntohost" = yes -a \
"$ac_cv_buggy_ether_ntohost" = "no"; then
#
# OK, we have ether_ntohost(). Do we have <netinet/if_ether.h>?
#
if test "$ac_cv_header_netinet_if_ether_h" = yes; then
#
# Yes. Does it declare ether_ntohost()?
#
AC_CHECK_DECL(ether_ntohost,
[
AC_DEFINE(NETINET_IF_ETHER_H_DECLARES_ETHER_NTOHOST,,
[Define to 1 if netinet/if_ether.h declares `ether_ntohost'])
],,
[
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
struct mbuf;
struct rtentry;
#include <net/if.h>
#include <netinet/if_ether.h>
])
fi
#
# Did that succeed?
#
if test "$ac_cv_have_decl_ether_ntohost" != yes; then
#
# No, how about <netinet/ether.h>, as on Linux?
#
AC_CHECK_HEADERS(netinet/ether.h)
if test "$ac_cv_header_netinet_ether_h" = yes; then
#
# We have it - does it declare ether_ntohost()?
# Unset ac_cv_have_decl_ether_ntohost so we don't
# treat the previous failure as a cached value and
# suppress the next test.
#
unset ac_cv_have_decl_ether_ntohost
AC_CHECK_DECL(ether_ntohost,
[
AC_DEFINE(NETINET_ETHER_H_DECLARES_ETHER_NTOHOST,,
[Define to 1 if netinet/ether.h declares `ether_ntohost'])
],,
[
#include <netinet/ether.h>
])
fi
fi
#
# Is ether_ntohost() declared?
#
if test "$ac_cv_have_decl_ether_ntohost" != 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_NTOHOST, 0,
[Define to 1 if you have the declaration of `ether_ntohost', and to 0 if you
don't.])
else
AC_DEFINE(HAVE_DECL_ETHER_NTOHOST, 1,
[Define to 1 if you have the declaration of `ether_ntohost', and to 0 if you
don't.])
fi
fi
# libdlpi is needed for Solaris 11 and later.
AC_CHECK_LIB(dlpi, dlpi_walk, LIBS="$LIBS -ldlpi" LDFLAGS="-L/lib $LDFLAGS", ,-L/lib)
dnl
dnl Check for "pcap_list_datalinks()", "pcap_set_datalink()",
dnl and "pcap_datalink_name_to_val()", and use substitute versions
dnl if they're not present.
dnl
AC_CHECK_FUNC(pcap_list_datalinks,
[
AC_DEFINE(HAVE_PCAP_LIST_DATALINKS, 1,
[define if libpcap has pcap_list_datalinks()])
AC_CHECK_FUNCS(pcap_free_datalinks)
],
[
AC_LIBOBJ(datalinks)
])
AC_CHECK_FUNCS(pcap_set_datalink)
AC_CHECK_FUNC(pcap_datalink_name_to_val,
[
AC_DEFINE(HAVE_PCAP_DATALINK_NAME_TO_VAL, 1,
[define if libpcap has pcap_datalink_name_to_val()])
AC_CHECK_FUNC(pcap_datalink_val_to_description,
AC_DEFINE(HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION, 1,
[define if libpcap has pcap_datalink_val_to_description()]),
[
AC_LIBOBJ(dlnames)
])
],
[
AC_LIBOBJ(dlnames)
])
dnl
dnl Check for "pcap_breakloop()"; you can't substitute for it if
dnl it's absent (it has hooks into the live capture routines),
dnl so just define the HAVE_ value if it's there.
dnl
AC_CHECK_FUNCS(pcap_breakloop)
dnl
dnl Check for "pcap_dump_ftell()" and use a substitute version
dnl if it's not present.
dnl
AC_CHECK_FUNC(pcap_dump_ftell,
AC_DEFINE(HAVE_PCAP_DUMP_FTELL, 1,
[define if libpcap has pcap_dump_ftell()]),
[
AC_LIBOBJ(pcap_dump_ftell)
])
#
# Do we have the new open API? Check for pcap_create, and assume that,
# if we do, we also have pcap_activate() and the other new routines
# introduced in libpcap 1.0.0.
#
AC_CHECK_FUNCS(pcap_create)
if test $ac_cv_func_pcap_create = "yes" ; then
#
# OK, do we have pcap_set_tstamp_type? If so, assume we have
# pcap_list_tstamp_types and pcap_free_tstamp_types as well.
#
AC_CHECK_FUNCS(pcap_set_tstamp_type)
#
# And do we have pcap_set_tstamp_precision? If so, we assume
# we also have pcap_open_offline_with_tstamp_precision.
#
AC_CHECK_FUNCS(pcap_set_tstamp_precision)
fi
#
# Check for a miscellaneous collection of functions which we use
# if we have them.
#
AC_CHECK_FUNCS(pcap_findalldevs pcap_dump_flush pcap_lib_version pcap_setdirection pcap_set_immediate_mode)
if test $ac_cv_func_pcap_findalldevs = "yes" ; then
dnl Check for Mac OS X, which may ship pcap.h from 0.6 but libpcap may
dnl be 0.8; this means that lib has pcap_findalldevs but header doesn't
dnl have pcap_if_t.
savedcppflags="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $V_INCLS"
AC_CHECK_TYPES(pcap_if_t, , , [#include <pcap.h>])
CPPFLAGS="$savedcppflags"
fi
if test $ac_cv_func_pcap_lib_version = "no" ; then
AC_MSG_CHECKING(whether pcap_version is defined by libpcap)
AC_TRY_LINK([],
[
extern char pcap_version[];
return (int)pcap_version;
],
ac_lbl_cv_pcap_version_defined=yes,
ac_lbl_cv_pcap_version_defined=no)
if test "$ac_lbl_cv_pcap_version_defined" = yes ; then
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_PCAP_VERSION, 1, [define if libpcap has pcap_version])
else
AC_MSG_RESULT(no)
fi
fi
#
# Check for special debugging functions
#
AC_CHECK_FUNCS(pcap_set_parser_debug)
if test "$ac_cv_func_pcap_set_parser_debug" = "no" ; then
#
# OK, we don't have pcap_set_parser_debug() to set the libpcap
# filter expression parser debug flag; can we directly set the
# flag?
AC_MSG_CHECKING(whether pcap_debug is defined by libpcap)
AC_TRY_LINK([],
[
extern int pcap_debug;
return pcap_debug;
],
ac_lbl_cv_pcap_debug_defined=yes,
ac_lbl_cv_pcap_debug_defined=no)
if test "$ac_lbl_cv_pcap_debug_defined" = yes ; then
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_PCAP_DEBUG, 1, [define if libpcap has pcap_debug])
else
AC_MSG_RESULT(no)
#
# OK, what about "yydebug"?
#
AC_MSG_CHECKING(whether yydebug is defined by libpcap)
AC_TRY_LINK([],
[
extern int yydebug;
return yydebug;
],
ac_lbl_cv_yydebug_defined=yes,
ac_lbl_cv_yydebug_defined=no)
if test "$ac_lbl_cv_yydebug_defined" = yes ; then
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_YYDEBUG, 1, [define if libpcap has yydebug])
else
AC_MSG_RESULT(no)
fi
fi
fi
AC_CHECK_FUNCS(pcap_set_optimizer_debug)
AC_REPLACE_FUNCS(bpf_dump) dnl moved to libpcap in 0.6
V_GROUP=0
if test -f /etc/group -a ! -z "`grep '^wheel:' /etc/group`" ; then
V_GROUP=wheel
fi
#
# Assume V7/BSD convention for man pages (file formats in section 5,
# miscellaneous info in section 7).
#
MAN_FILE_FORMATS=5
MAN_MISC_INFO=7
case "$host_os" in
aix*)
dnl Workaround to enable certain features
AC_DEFINE(_SUN,1,[define on AIX to get certain functions])
;;
hpux*)
#
# Use System V conventions for man pages.
#
MAN_FILE_FORMATS=4
MAN_MISC_INFO=5
;;
irix*)
V_GROUP=sys
#
# Use System V conventions for man pages.
#
MAN_FILE_FORMATS=4
MAN_MISC_INFO=5
;;
osf*)
V_GROUP=system
#
# Use System V conventions for man pages.
#
MAN_FILE_FORMATS=4
MAN_MISC_INFO=5
;;
solaris*)
V_GROUP=sys
#
# Use System V conventions for man pages.
#
MAN_FILE_FORMATS=4
MAN_MISC_INFO=5
;;
esac
if test -f /dev/bpf0 ; then
V_GROUP=bpf
fi
#
# Make sure we have definitions for all the C99 specified-width types
# (regardless of whether the environment is a C99 environment or not).
#
AC_TYPE_INT8_T
AC_TYPE_INT16_T
AC_TYPE_INT32_T
AC_TYPE_INT64_T
AC_TYPE_UINT8_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
AC_TYPE_UINT64_T
#
# Make sure we have a definition for C99's uintptr_t (regardless of
# whether the environment is a C99 environment or not).
#
AC_TYPE_UINTPTR_T
#
# Define the old BSD specified-width types in terms of the C99 types;
# we may need them with libpcap include files.
#
AC_CHECK_TYPE([u_int8_t], ,
[AC_DEFINE([u_int8_t], [uint8_t],
[Define to `uint8_t' if u_int8_t not defined.])],
[AC_INCLUDES_DEFAULT
#include <sys/types.h>
])
AC_CHECK_TYPE([u_int16_t], ,
[AC_DEFINE([u_int16_t], [uint16_t],
[Define to `uint16_t' if u_int16_t not defined.])],
[AC_INCLUDES_DEFAULT
#include <sys/types.h>
])
AC_CHECK_TYPE([u_int32_t], ,
[AC_DEFINE([u_int32_t], [uint32_t],
[Define to `uint32_t' if u_int32_t not defined.])],
[AC_INCLUDES_DEFAULT
#include <sys/types.h>
])
AC_CHECK_TYPE([u_int64_t], ,
[AC_DEFINE([u_int64_t], [uint64_t],
[Define to `uint64_t' if u_int64_t not defined.])],
[AC_INCLUDES_DEFAULT
#include <sys/types.h>
])
#
# Check for <inttypes.h>
#
AC_CHECK_HEADERS(inttypes.h,
[
#
# OK, we have inttypes.h, but does it define all the PRI[doxu]64 macros?
# Some systems have an inttypes.h that doesn't define all of them.
#
AC_MSG_CHECKING([[whether inttypes.h defines the PRI[doxu]64 macros]])
AC_COMPILE_IFELSE(
[
AC_LANG_SOURCE(
[[
#include <inttypes.h>
#include <stdio.h>
#include <sys/types.h>
main()
{
printf("%" PRId64 "\n", (uint64_t)1);
printf("%" PRIo64 "\n", (uint64_t)1);
printf("%" PRIx64 "\n", (uint64_t)1);
printf("%" PRIu64 "\n", (uint64_t)1);
}
]])
],
[
AC_MSG_RESULT(yes)
ac_lbl_inttypes_h_defines_formats=yes
],
[
AC_MSG_RESULT(no)
ac_lbl_inttypes_h_defines_formats=no
])
],
[
#
# We don't have inttypes.h, so it obviously can't define those
# macros.
#
ac_lbl_inttypes_h_defines_formats=no
])
if test "$ac_lbl_inttypes_h_defines_formats" = no; then
AC_LBL_CHECK_64BIT_FORMAT(l,
[
AC_LBL_CHECK_64BIT_FORMAT(ll,
[
AC_LBL_CHECK_64BIT_FORMAT(L,
[
AC_LBL_CHECK_64BIT_FORMAT(q,
[
AC_MSG_ERROR([neither %llx nor %Lx nor %qx worked on a 64-bit integer])
])
])
])
])
fi
#
# Check for some headers introduced in later versions of libpcap
# and used by some printers.
#
# Those headers use the {u_}intN_t types, so we must do this after
# we check for what's needed to get them defined.
#
savedcppflags="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $V_INCLS"
AC_CHECK_HEADERS(pcap/bluetooth.h,,,[#include "netdissect-stdinc.h"])
AC_CHECK_HEADERS(pcap/nflog.h,,,[#include "netdissect-stdinc.h"])
AC_CHECK_HEADERS(pcap/usb.h,,,[#include "netdissect-stdinc.h"])
CPPFLAGS="$savedcppflags"
AC_PROG_RANLIB
AC_CHECK_TOOL([AR], [ar])
AC_LBL_DEVEL(V_CCOPT)
AC_LBL_SOCKADDR_SA_LEN
AC_LBL_UNALIGNED_ACCESS
# Check for OpenSSL/libressl libcrypto
AC_MSG_CHECKING(whether to use OpenSSL/libressl libcrypto)
# Specify location for both includes and libraries.
want_libcrypto=ifavailable
AC_ARG_WITH(crypto,
AS_HELP_STRING([--with-crypto]@<:@=DIR@:>@,
[use OpenSSL/libressl libcrypto (located in directory DIR, if specified) @<:@default=yes, if available@:>@]),
[
if test $withval = no
then
# User doesn't want to link with libcrypto.
want_libcrypto=no
AC_MSG_RESULT(no)
elif test $withval = yes
then
# User wants to link with libcrypto but hasn't specified
# a directory.
want_libcrypto=yes
AC_MSG_RESULT(yes)
else
# User wants to link with libcrypto and has specified
# a directory, so use the provided value.
want_libcrypto=yes
libcrypto_root=$withval
AC_MSG_RESULT([yes, using the version installed in $withval])
#
# Put the subdirectories of the libcrypto root directory
# at the front of the header and library search path.
#
CFLAGS="-I$withval/include $CFLAGS"
LIBS="-L$withval/lib $LIBS"
fi
],[
#
# Use libcrypto if it's present, otherwise don't; no directory
# was specified.
#
want_libcrypto=ifavailable
AC_MSG_RESULT([yes, if available])
])
if test "$want_libcrypto" != "no"; then
#
# Don't check for libcrypto unless we have its headers;
# Apple, bless their pointy little heads, apparently ship
# libcrypto as a library, but not the header files, in
# El Capitan, probably because they don't want you writing
# nasty portable code that could run on other UN*Xes, they
# want you writing code that uses their Shiny New Crypto
# Library and that only runs on OS X.
#
AC_CHECK_HEADER(openssl/crypto.h,
[
AC_CHECK_LIB(crypto, DES_cbc_encrypt)
if test "$ac_cv_lib_crypto_DES_cbc_encrypt" = "yes"; then
AC_CHECK_HEADERS(openssl/evp.h)
#
# OK, then:
#
# 1) do we have EVP_CIPHER_CTX_new?
# If so, we use it to allocate an
# EVP_CIPHER_CTX, as EVP_CIPHER_CTX may be
# opaque; otherwise, we allocate it ourselves.
#
# 2) do we have EVP_CipherInit_ex()?
# If so, we use it, because we need to be
# able to make two "initialize the cipher"
# calls, one with the cipher and key, and
# one with the IV, and, as of OpenSSL 1.1,
# You Can't Do That with EVP_CipherInit(),
# because a call to EVP_CipherInit() will
# unconditionally clear the context, and
# if you don't supply a cipher, it'll
# clear the cipher, rendering the context
# unusable and causing a crash.
#
AC_CHECK_FUNCS(EVP_CIPHER_CTX_new EVP_CipherInit_ex)
fi
])
fi
# Check for libcap-ng
AC_MSG_CHECKING(whether to use libcap-ng)
# Specify location for both includes and libraries.
want_libcap_ng=ifavailable
AC_ARG_WITH(cap_ng,
AS_HELP_STRING([--with-cap-ng],
[use libcap-ng @<:@default=yes, if available@:>@]),
[
if test $withval = no
then
want_libcap_ng=no
AC_MSG_RESULT(no)
elif test $withval = yes
then
want_libcap_ng=yes
AC_MSG_RESULT(yes)
fi
],[
#
# Use libcap-ng if it's present, otherwise don't.
#
want_libcap_ng=ifavailable
AC_MSG_RESULT([yes, if available])
])
if test "$want_libcap_ng" != "no"; then
AC_CHECK_LIB(cap-ng, capng_change_id)
AC_CHECK_HEADERS(cap-ng.h)
fi
dnl
dnl set additional include path if necessary
if test "$missing_includes" = "yes"; then
CPPFLAGS="$CPPFLAGS -I$srcdir/missing"
V_INCLS="$V_INCLS -I$srcdir/missing"
fi
AC_SUBST(V_CCOPT)
AC_SUBST(V_DEFS)
AC_SUBST(V_GROUP)
AC_SUBST(V_INCLS)
AC_SUBST(V_PCAPDEP)
AC_SUBST(LOCALSRC)
AC_SUBST(MAN_FILE_FORMATS)
AC_SUBST(MAN_MISC_INFO)
AC_PROG_INSTALL
AC_CONFIG_HEADER(config.h)
AC_OUTPUT_COMMANDS([if test -f .devel; then
echo timestamp > stamp-h
cat Makefile-devel-adds >> Makefile
make depend
fi])
AC_OUTPUT(Makefile tcpdump.1)
exit 0