dnl This file is part of the Autoconf packaging for Ethereal.
dnl Copyright (C) 1998-2000 by Gerald Combs.
dnl
-dnl $Id: acinclude.m4,v 1.72 2004/04/22 20:02:58 obiot Exp $
+dnl $Id$
dnl
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
fi
])
+
+dnl
+dnl Check whether a given format can be used to print 64-bit integers
+dnl
+AC_DEFUN([AC_ETHEREAL_CHECK_64BIT_FORMAT],
+[
+ AC_MSG_CHECKING([whether %$1x can be used to format 64-bit integers])
+ AC_RUN_IFELSE(
+ [
+ AC_LANG_SOURCE(
+ [[
+# ifdef HAVE_INTTYPES_H
+ #include <inttypes.h>
+# endif
+ #include <glibconfig.h>
+ #include <stdio.h>
+ #include <sys/types.h>
+
+ main()
+ {
+ guint64 t = 1;
+ char strbuf[16+1];
+ sprintf(strbuf, "%016$1x", t << 32);
+ if (strcmp(strbuf, "0000000100000000") == 0)
+ exit(0);
+ else
+ exit(1);
+ }
+ ]])
+ ],
+ [
+ AC_DEFINE(PRId64, "$1d", [Format for printing 64-bit signed decimal numbers])
+ AC_DEFINE(PRIo64, "$1o", [Format for printing 64-bit unsigned octal numbers])
+ AC_DEFINE(PRIx64, "$1x", [Format for printing 64-bit unsigned hexadecimal numbers])
+ AC_DEFINE(PRIu64, "$1u", [Format for printing 64-bit unsigned decimal numbers])
+ AC_MSG_RESULT(yes)
+ ],
+ [
+ AC_MSG_RESULT(no)
+ $2
+ ])
+])
+
#
# AC_ETHEREAL_IPV6_STACK
#
else
AC_MSG_RESULT(no)
fi
- AC_CHECK_FUNCS(pcap_findalldevs pcap_lib_version pcap_open_dead)
- AC_CHECK_FUNCS(pcap_datalink_val_to_name pcap_datalink_name_to_val)
- AC_CHECK_FUNCS(pcap_list_datalinks pcap_set_datalink)
+ AC_CHECK_FUNCS(pcap_open_dead)
+ #
+ # Later versions of Mac OS X 10.3[.x] ship a pcap.h that
+ # doesn't define pcap_if_t but ship an 0.8[.x] libpcap,
+ # so the library has "pcap_findalldevs()", but pcap.h
+ # doesn't define "pcap_if_t" so you can't actually *use*
+ # "pcap_findalldevs()".
+ #
+ # That even appears to be true of systems shipped with
+ # 10.3.4, so it doesn't appear only to be a case of
+ # Software Update not updating header files.
+ #
+ # (You can work around this by installing the 0.8 header
+ # files.)
+ #
+ AC_CACHE_CHECK([whether pcap_findalldevs is present and usable],
+ [ac_cv_func_pcap_findalldevs],
+ [
+ AC_LINK_IFELSE(
+ [
+ AC_LANG_SOURCE(
+ [[
+ #include <pcap.h>
+ main()
+ {
+ pcap_if_t *devpointer;
+ char errbuf[1];
+
+ pcap_findalldevs(&devpointer, errbuf);
+ }
+ ]])
+ ],
+ [
+ ac_cv_func_pcap_findalldevs=yes
+ ],
+ [
+ ac_cv_func_pcap_findalldevs=no
+ ])
+ ])
+ #
+ # Don't check for other new routines that showed up after
+ # "pcap_findalldevs()" if we don't have a usable
+ # "pcap_findalldevs()", so we don't end up using them if the
+ # "pcap.h" is crufty and old and doesn't declare them.
+ #
+ if test $ac_cv_func_pcap_findalldevs = "yes" ; then
+ AC_DEFINE(HAVE_PCAP_FINDALLDEVS, 1,
+ [Define to 1 if you have the `pcap_findalldevs' function and a pcap.h that declares pcap_if_t.])
+ AC_CHECK_FUNCS(pcap_datalink_val_to_name pcap_datalink_name_to_val)
+ AC_CHECK_FUNCS(pcap_list_datalinks pcap_set_datalink pcap_lib_version)
+ fi
LIBS="$ac_save_LIBS"
])
# libraries on various platforms, such as "-ldes425"
# in "/usr/kerberos/lib" on some versions of Red
# Hat Linux, or "-lkstat" on Solaris.
- # XXX - it may also require "-lcrypto" on some platforms;
- # we should check for that as well, rather than requiring
- # users to explicitly indicate whether it's required.
+ #
+ # It might also require "-lcrypto" on some platforms;
+ # if the user didn't specify --with-ssl, we check
+ # whether it would have made a difference and, if so,
+ # we tell the user that they needed to request it.
+ # (There are annoying licensing issues with it and
+ # GPL'ed code, so we don't include it by default.)
#
# XXX - autoconf really needs a way to test for
# a given routine in a given library *and* to test
# needed after the library *and* to cache all that
# information.
#
+ ethereal_save_LIBS="$LIBS"
+ found_sprint_realloc_objid=no
for extras in "" "-L/usr/kerberos/lib -ldes425" "-lkstat"
do
- AC_CHECK_LIB(snmp, sprint_realloc_objid,
- [
- SNMP_LIBS="-lsnmp $extras"; break
- ],
- [
+ LIBS="-lsnmp $extras $SOCKET_LIBS $NSL_LIBS $SSL_LIBS"
+ if test -z "$extras"
+ then
+ AC_MSG_CHECKING([whether UCD SNMP includes sprint_realloc_objid])
+ else
+ AC_MSG_CHECKING([whether UCD SNMP includes sprint_realloc_objid (linking with $extras)])
+ fi
+ AC_TRY_LINK(
+ [
+ ],
+ [
+ sprint_realloc_objid();
+ ],
+ [
+ #
+ # We found "sprint_realloc_objid()",
+ # and required the libraries in
+ # extras as well.
+ #
+ AC_MSG_RESULT(yes)
+ SNMP_LIBS="-lsnmp $extras"; break;
+ found_sprint_realloc_objid=yes
+ break
+ ],
+ [
#
- # Throw away the cached "we didn't find it"
- # answer, so that if we rerun "configure",
- # we still do all these checks and don't
- # just blithely assume we don't need
- # the extra libraries.
+ # The link failed. If they didn't ask
+ # for SSL, try linking with -lcrypto
+ # as well, and if *that* succeeds,
+ # tell them they'll need to specify
+ # --want-ssl.
#
- unset ac_cv_lib_snmp_sprint_realloc_objid
- ], $SOCKET_LIBS $NSL_LIBS $SSL_LIBS $extras)
+ AC_MSG_RESULT(no)
+ if test "x$want_ssl" = "xno"
+ then
+ LIBS="$LIBS -lcrypto"
+ AC_TRY_LINK(
+ [
+ ],
+ [
+ sprint_realloc_objid();
+ ],
+ [
+ #
+ # It worked with -lcrypto; tell
+ # them they'll need to specify
+ # --with-ssl.
+ #
+ AC_MSG_ERROR([UCD SNMP requires -lcrypto but --with-ssl not specified])
+ ])
+ fi
+ ])
done
+ LIBS="$ethereal_save_LIBS"
#
# If we didn't find "sprint_realloc_objid()", fail.
# with "sprint_realloc_objid()", or they may need to
# specify "--with-ssl".
#
- if test "$ac_cv_lib_snmp_sprint_realloc_objid" = no; then
+ if test "$found_snmp_sprint_realloc_objid" = no; then
AC_MSG_ERROR([UCD SNMP header files found, but sprint_realloc_objid not found in SNMP library.])
fi
])
])
-#
-# AC_ETHEREAL_SSL_CHECK
-#
-AC_DEFUN([AC_ETHEREAL_SSL_CHECK],
-[
- want_ssl=defaultyes
-
- AC_ARG_WITH(ssl,
-changequote(<<, >>)dnl
-<< --with-ssl[=DIR] use SSL crypto library (located in directory DIR, if supplied). [default=yes, if present]>>,
-changequote([, ])dnl
- [
- if test "x$withval" = "xno"; then
- want_ssl=no
- elif test "x$withval" = "xyes"; then
- want_ssl=yes
- elif test -d "$withval"; then
- want_ssl=yes
- AC_ETHEREAL_ADD_DASH_L(LDFLAGS, ${withval}/lib)
- fi
- ])
-
- if test "x$want_ssl" = "xdefaultyes"; then
- want_ssl=yes
- withval=/usr/local/ssl
- if test -d "$withval"; then
- AC_ETHEREAL_ADD_DASH_L(LDFLAGS, ${withval}/lib)
- fi
- fi
-
- if test "x$want_ssl" = "xyes"; then
- AC_CHECK_LIB(crypto, EVP_md5,
- [
- SSL_LIBS=-lcrypto
- ],,
- )
- else
- AC_MSG_RESULT(not required)
- fi
-])
-
#
# AC_ETHEREAL_RPM_CHECK
# Looks for the rpm program, and checks to see if we can redefine "_topdir".
#
AC_DEFUN([AC_ETHEREAL_KRB5_CHECK],
[
+ ethereal_save_CFLAGS="$CFLAGS"
+ ethereal_save_CPPFLAGS="$CPPFLAGS"
if test "x$krb5_dir" != "x"
then
#
# as the compiler and/or linker will search that other
# directory before it searches the specified directory.
#
- ethereal_save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -I$krb5_dir/include"
- ethereal_save_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS -I$krb5_dir/include"
- ethereal_save_LIBS="$LIBS"
- LIBS="$LIBS -lkrb5 -lasn1 -lcrypto -lroken -lcrypt -lresolv"
- ethereal_save_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LDFLAGS -L$krb5_dir/lib"
+ ac_heimdal_version=`grep heimdal $krb5_dir/include/krb5.h | head -n 1 | sed 's/^.*heimdal.*$/HEIMDAL/'`
+ ac_mit_version=`grep 'Massachusetts Institute of Technology' $krb5_dir/include/krb5.h | head -n 1 | sed 's/^.*Massachusetts Institute of Technology.*$/MIT/'`
+ ac_krb5_version="$ac_heimdal_version$ac_mit_version"
+ if test "x$ac_krb5_version" = "xHEIMDAL"
+ KRB5_LIBS="-L$krb5_dir/lib -lkrb5 -lasn1 $SSL_LIBS -lroken -lcrypt"
+ then
+ KRB5_LIBS="-L$krb5_dir/lib -lkrb5 -lk5crypto -lcom_err"
+ fi
+ if test "x$ac_krb5_version" = "xMIT"
+ then
+ AC_DEFINE(HAVE_MIT_KERBEROS, 1, [Define to use MIT kerberos])
+ fi
else
AC_PATH_PROG(KRB5_CONFIG, krb5-config)
- if test -x $KRB5_CONFIG
+ if test -x "$KRB5_CONFIG"
then
- KRB5_FLAGS=`$KRB5_CONFIG --cflags`
+ KRB5_FLAGS=`"$KRB5_CONFIG" --cflags`
+ KRB5_LIBS=`"$KRB5_CONFIG" --libs`
CFLAGS="$CFLAGS $KRB5_FLAGS"
- CPPFLAGS="$CPPFLAGS $KRB5_FLAGS"
- KRB5_LIBS=`$KRB5_CONFIG --libs`
- # Looks like krb5-config is lacking -lresolv on some systems
- AC_MSG_CHECKING(whether library list looks OK)
- if echo "$KRB5_LIBS" | grep resolv >/dev/null
- then
- AC_MSG_RESULT(yes)
- else
- KRB5_LIBS="$KRB5_LIBS -lresolv"
- AC_MSG_RESULT(Adding -lresolv to libs)
- fi
-
- LIBS="$LIBS $KRB5_LIBS"
- ac_krb5_version=`$KRB5_CONFIG --version | head -n 1 | sed 's/^.*heimdal.*$/HEIMDAL/i'`
+ CPPFLAGS="$CPPFLAGS $KRB5_FLAGS"
+ #
+ # If -lcrypto is in KRB5_FLAGS, we require it to build
+ # with Heimdal/MIT. We don't want to built with it by
+ # default, due to annoying license incompatibilities
+ # between the OpenSSL license and the GPL, so:
+ #
+ # if SSL_LIBS is set to a non-empty string, we
+ # remove -lcrypto from KRB5_LIBS and replace
+ # it with SSL_LIBS;
+ #
+ # if SSL_LIBS is not set to a non-empty string
+ # we fail with an appropriate error message.
+ #
+ case "$KRB5_LIBS" in
+ *-lcrypto*)
+ if test ! -z "$SSL_LIBS"
+ then
+ KRB5_LIBS=`echo $KRB5_LIBS | sed 's/-lcrypto//'`
+ KRB5_LIBS="$KRB5_LIBS $SSL_LIBS"
+ else
+ AC_MSG_ERROR([Kerberos library requires -lcrypto but --with-ssl not specified])
+ fi
+ ;;
+ esac
+ ac_krb5_version=`"$KRB5_CONFIG" --version | head -n 1 | sed -e 's/^.*heimdal.*$/HEIMDAL/' -e 's/^Kerberos .*$/MIT/'`
fi
fi
# library, as it's probably not present.
#
want_krb5=no
+ AC_MSG_RESULT(No Heimdal or MIT header found - disabling dissection for some kerberos data in packet decoding)
fi
fi
])
- if test "x$want_krb5" != "xno" -a "x$ac_krb5_version" = "xHEIMDAL"
+ if test "x$want_krb5" != "xno"
then
+ #
+ # Well, we at least have the krb5 header file.
+ # Check whether this is Heimdal or MIT.
+ #
+ AC_MSG_CHECKING(whether the Kerberos library is Heimdal or MIT)
+ if test "x$ac_krb5_version" = "xHEIMDAL" -o "x$ac_krb5_version" = "xMIT"
+ then
#
- # Well, we at least have the krb5 header file.
+ # Yes.
+ # Check whether we have krb5_kt_resolve - and whether
+ # we need to link with -lresolv when linking with
+ # the Kerberos library.
#
- AC_CHECK_LIB(krb5, krb5_kt_resolve,
- [
- if test "x$krb5_dir" != "x"
- then
- #
- # Put the "-I" and "-L" flags for pcre at
- # the beginning of CFLAGS, CPPFLAGS,
- # LDFLAGS, and LIBS.
- #
- KRB5_LIBS="-L$krb5_dir/lib $KRB5_LIBS"
- fi
- AC_DEFINE(HAVE_KERBEROS, 1, [Define to use kerberos])
- AC_DEFINE(HAVE_HEIMDAL_KERBEROS, 1, [Define to use heimdal kerberos])
- ],[
- if test "x$krb5_dir" != "x"
- then
- #
- # Restore the versions of CFLAGS, CPPFLAGS,
- # LDFLAGS, and LIBS before we added the
- # "--with-krb5=" directory, as we didn't
- # actually find kerberos there.
- #
- CFLAGS="$ethereal_save_CFLAGS"
- CPPFLAGS="$ethereal_save_CPPFLAGS"
- LDFLAGS="$ethereal_save_LDFLAGS"
- LIBS="$ethereal_save_LIBS"
- KRB5_LIBS=""
- fi
+ AC_MSG_RESULT($ac_krb5_version)
+ ethereal_save_LIBS="$LIBS"
+ found_krb5_kt_resolve=no
+ for extras in "" "-lresolv"
+ do
+ LIBS="$KRB5_LIBS $extras"
+ if test -z "$extras"
+ then
+ AC_MSG_CHECKING([whether $ac_krb5_version includes krb5_kt_resolve])
+ else
+ AC_MSG_CHECKING([whether $ac_krb5_version includes krb5_kt_resolve (linking with $extras)])
+ fi
+ AC_TRY_LINK(
+ [
+ ],
+ [
+ krb5_kt_resolve();
+ ],
+ [
+ #
+ # We found "krb5_kt_resolve()", and required
+ # the libraries in extras as well.
+ #
+ AC_MSG_RESULT(yes)
+ KRB5_LIBS="$LIBS"
+ AC_DEFINE(HAVE_KERBEROS, 1, [Define to use kerberos])
+ if test "x$ac_krb5_version" = "xHEIMDAL"
+ then
+ AC_DEFINE(HAVE_HEIMDAL_KERBEROS, 1, [Define to use heimdal kerberos])
+ fi
+ if test "x$ac_krb5_version" = "xMIT"
+ then
+ AC_DEFINE(HAVE_MIT_KERBEROS, 1, [Define to use MIT kerberos])
+ fi
+ found_krb5_kt_resolve=yes
+ break
+ ],
+ [
+ AC_MSG_RESULT(no)
+ ])
+ done
+ if test "$found_krb5_kt_resolve" = no
+ then
+ #
+ # We didn't find "krb5_kt_resolve()" in the
+ # Kerberos library, even when we tried linking
+ # with -lresolv; we can't link with kerberos.
+ #
+ if test "x$want_krb5" = "xyes"
+ then
+ #
+ # The user tried to force us to use the library,
+ # but we can't do so; report an error.
+ #
+ AC_MSG_ERROR(Usable $ac_krb5_version not found)
+ else
+ #
+ # Restore the versions of CFLAGS and CPPFLAGS
+ # from before we added the flags for Kerberos.
+ #
+ AC_MSG_RESULT(Usable $ac_krb5_version not found - disabling dissection for some kerberos data in packet decoding)
+ CFLAGS="$ethereal_save_CFLAGS"
+ CPPFLAGS="$ethereal_save_CPPFLAGS"
+ KRB5_LIBS=""
want_krb5=no
- ])
- AC_SUBST(KRB5_LIBS)
+ fi
+ fi
+ LIBS="$ethereal_save_LIBS"
+ else
+ #
+ # It's not Heimdal or MIT.
+ #
+ AC_MSG_RESULT(no)
+ if test "x$want_krb5" = "xyes"
+ then
+ #
+ # The user tried to force us to use the library,
+ # but we can't do so; report an error.
+ #
+ AC_MSG_ERROR(Kerberos not found)
+ else
+ #
+ # Restore the versions of CFLAGS and CPPFLAGS
+ # from before we added the flags for Kerberos.
+ #
+ AC_MSG_RESULT(Kerberos not found - disabling dissection for some kerberos data in packet decoding)
+ CFLAGS="$ethereal_save_CFLAGS"
+ CPPFLAGS="$ethereal_save_CPPFLAGS"
+ KRB5_LIBS=""
+ want_krb5=no
+ fi
+ fi
else
- want_krb5=no
+ #
+ # The user asked us not to use Kerberos, or they didn't
+ # say whether they wanted us to use it but we found
+ # that we couldn't.
+ #
+ # Restore the versions of CFLAGS and CPPFLAGS
+ # from before we added the flags for Kerberos.
+ #
+ CFLAGS="$ethereal_save_CFLAGS"
+ CPPFLAGS="$ethereal_save_CPPFLAGS"
+ KRB5_LIBS=""
+ want_krb5=no
fi
+ AC_SUBST(KRB5_LIBS)
])