dnl @(#) $Header: /tcpdump/master/tcpdump/configure.in,v 1.145 2002/01/17 05:00:16 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: 1.145 $) AC_PREREQ(2.13) AC_INIT(tcpdump.c) AC_CANONICAL_HOST AC_LBL_C_INIT(V_CCOPT, V_INCLS) AC_C_INLINE AC_C___ATTRIBUTE__ AC_CHECK_HEADERS(fcntl.h rpc/rpcent.h netinet/if_ether.h) AC_HEADER_TIME case "$host_os" in 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 $ac_cv_linux_vers -lt 2 ; then AC_MSG_ERROR(version 2 or higher required; see the INSTALL doc for more info) fi ;; *) ;; esac AC_CHECK_HEADERS(smi.h) AC_CHECK_LIB(smi, smiInit) if test "$ac_cv_header_smi_h" = yes -a "$ac_cv_lib_smi_smiInit" = yes then AC_MSG_CHECKING([whether to enable libsmi]) AC_TRY_RUN([ /* libsmi available check */ #include 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(LIBSMI) libsmi=yes], dnl autoconf documentation says that $? contains the exit value. dnl reality is that it does not. We leave this in just in case dnl autoconf ever comes back to match the documentation. [ case $? in 1) AC_MSG_RESULT(no - smiInit failed) ;; 2) AC_MSG_RESULT(no - header/library version mismatch) ;; 3) AC_MSG_RESULT(no - can't determine library version) ;; 4) AC_MSG_RESULT(no - too old) ;; *) AC_MSG_RESULT(no) ;; esac libsmi=no], [ AC_MSG_RESULT(not when cross-compiling) libsmi=no] ) fi AC_MSG_CHECKING([whether to enable the possibly-buggy SMB printer]) AC_ARG_ENABLE(smb, [ --enable-smb enable possibly-buggy SMB printer [default=yes] --disable-smb disable possibly-buggy SMB printer],, enableval=yes) case "$enableval" in yes) AC_MSG_RESULT(yes) AC_WARN([The SMB printer may have exploitable buffer overflows!!!]) AC_DEFINE(TCPDUMP_DO_SMB) LOCALSRC="print-smb.c smbutil.c $LOCALSRC" ;; *) AC_MSG_RESULT(no) ;; esac CFLAGS="$CFLAGS -Dss_family=__ss_family -Dss_len=__ss_len" AC_MSG_CHECKING([whether to enable ipv6]) AC_ARG_ENABLE(ipv6, [ --enable-ipv6 enable ipv6 (with ipv4) support --disable-ipv6 disable ipv6 support], [ case "$enableval" in yes) AC_MSG_RESULT(yes) LOCALSRC="print-ip6.c print-ip6opts.c print-ripng.c print-icmp6.c print-frag6.c print-rt6.c print-ospf6.c print-dhcp6.c $LOCALSRC" AC_DEFINE(INET6) ipv6=yes ;; *) AC_MSG_RESULT(no) ipv6=no ;; esac ], AC_TRY_RUN([ /* AF_INET6 available check */ #include #include main() { if (socket(AF_INET6, SOCK_STREAM, 0) < 0) exit(1); else exit(0); } ], [ AC_MSG_RESULT(yes) LOCALSRC="print-ip6.c print-ip6opts.c print-ripng.c print-icmp6.c print-frag6.c print-rt6.c print-ospf6.c print-dhcp6.c $LOCALSRC" AC_DEFINE(INET6) ipv6=yes], [ AC_MSG_RESULT(no) ipv6=no], [ AC_MSG_RESULT(no) ipv6=no] )) ipv6type=unknown ipv6lib=none ipv6trylibc=no if test "$ipv6" = "yes"; then AC_MSG_CHECKING([ipv6 stack type]) for i in inria kame linux-glibc linux-libinet6 toshiba v6d zeta; do case $i in inria) dnl http://www.kame.net/ AC_EGREP_CPP(yes, [dnl #include #ifdef IPV6_INRIA_VERSION yes #endif], [ipv6type=$i; CFLAGS="-DINET6 $CFLAGS"]) ;; kame) dnl http://www.kame.net/ AC_EGREP_CPP(yes, [dnl #include #ifdef __KAME__ yes #endif], [ipv6type=$i; ipv6lib=inet6; ipv6libdir=/usr/local/v6/lib; ipv6trylibc=yes; CFLAGS="-DINET6 $CFLAGS"]) ;; linux-glibc) dnl http://www.v6.linux.or.jp/ AC_EGREP_CPP(yes, [dnl #include #if defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1 yes #endif], [ipv6type=$i; CFLAGS="-DINET6 $CFLAGS"]) ;; linux-libinet6) dnl http://www.v6.linux.or.jp/ if test -d /usr/inet6 -o -f /usr/include/netinet/ip6.h; then ipv6type=$i ipv6lib=inet6 ipv6libdir=/usr/inet6/lib ipv6trylibc=yes; CFLAGS="-DINET6 -I/usr/inet6/include $CFLAGS" fi ;; toshiba) AC_EGREP_CPP(yes, [dnl #include #ifdef _TOSHIBA_INET6 yes #endif], [ipv6type=$i; ipv6lib=inet6; ipv6libdir=/usr/local/v6/lib; CFLAGS="-DINET6 $CFLAGS"]) ;; v6d) AC_EGREP_CPP(yes, [dnl #include #ifdef __V6D__ yes #endif], [ipv6type=$i; ipv6lib=v6; ipv6libdir=/usr/local/v6/lib; CFLAGS="-I/usr/local/v6/include $CFLAGS"]) ;; zeta) AC_EGREP_CPP(yes, [dnl #include #ifdef _ZETA_MINAMI_INET6 yes #endif], [ipv6type=$i; ipv6lib=inet6; ipv6libdir=/usr/local/v6/lib; CFLAGS="-DINET6 $CFLAGS"]) ;; esac if test "$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 if test "$ipv6" = "yes"; then AC_SEARCH_LIBS(getaddrinfo, socket, [dnl AC_MSG_CHECKING(getaddrinfo bug) AC_TRY_RUN([ #include #include #include #include #include main() { int passive, gaierr, inet4 = 0, inet6 = 0; struct addrinfo hints, *ai, *aitop; char straddr[INET6_ADDRSTRLEN], strport[16]; for (passive = 0; passive <= 1; passive++) { memset(&hints, 0, sizeof(hints)); hints.ai_family = AF_UNSPEC; hints.ai_flags = passive ? AI_PASSIVE : 0; hints.ai_socktype = SOCK_STREAM; if ((gaierr = getaddrinfo(NULL, "54321", &hints, &aitop)) != 0) { (void)gai_strerror(gaierr); goto bad; } for (ai = aitop; ai; ai = ai->ai_next) { if (ai->ai_addr == NULL || ai->ai_addrlen == 0 || getnameinfo(ai->ai_addr, ai->ai_addrlen, straddr, sizeof(straddr), strport, sizeof(strport), NI_NUMERICHOST|NI_NUMERICSERV) != 0) { goto bad; } switch (ai->ai_family) { case AF_INET: if (strcmp(strport, "54321") != 0) { goto bad; } if (passive) { if (strcmp(straddr, "0.0.0.0") != 0) { goto bad; } } else { if (strcmp(straddr, "127.0.0.1") != 0) { goto bad; } } inet4++; break; case AF_INET6: if (strcmp(strport, "54321") != 0) { goto bad; } if (passive) { if (strcmp(straddr, "::") != 0) { goto bad; } } else { if (strcmp(straddr, "::1") != 0) { goto bad; } } inet6++; break; case AF_UNSPEC: goto bad; break; #ifdef AF_UNIX case AF_UNIX: #else #ifdef AF_LOCAL case AF_LOCAL: #endif #endif default: /* another family support? */ break; } } } /* supported family should be 2, unsupported family should be 0 */ if (!(inet4 == 0 || inet4 == 2)) goto bad; if (!(inet6 == 0 || inet6 == 2)) goto bad; if (aitop) freeaddrinfo(aitop); exit(0); bad: if (aitop) freeaddrinfo(aitop); exit(1); } ], AC_MSG_RESULT(good) buggygetaddrinfo=no, AC_MSG_RESULT(buggy) buggygetaddrinfo=yes, AC_MSG_RESULT(buggy) buggygetaddrinfo=yes)], [buggygetaddrinfo=yes]) if test "$buggygetaddrinfo" = "yes"; then if test "$ipv6type" != "linux"; then echo 'Fatal: You must get working getaddrinfo() function.' echo ' or you can specify "--disable-ipv6"'. exit 1 else echo 'Warning: getaddrinfo() implementation on your system seems be buggy.' echo ' Better upgreade your system library to newest version' echo ' of GNU C library (aka glibc).' fi fi AC_REPLACE_FUNCS(getaddrinfo getnameinfo) fi dnl AC_TRY_COMPILE(inet_ntop inet_pton inet_aton) AC_MSG_CHECKING(for inet_ntop) AC_TRY_COMPILE([#include #include #include #include ], [char src[4], dst[128]; inet_ntop(AF_INET, src, dst, sizeof(dst));], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) AC_REPLACE_FUNCS(inet_ntop)]) AC_MSG_CHECKING(for inet_pton) AC_TRY_COMPILE([#include #include #include #include ], [char src[128], dst[4]; inet_pton(AF_INET, src, dst);], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) AC_REPLACE_FUNCS(inet_pton)]) AC_MSG_CHECKING(for inet_aton) AC_TRY_COMPILE([#include #include #include ], [char src[128]; struct in_addr dst; inet_aton(src, &dst);], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) AC_REPLACE_FUNCS(inet_aton)]) dnl portability macros for getaddrinfo/getnameinfo dnl dnl Check for sa_len AC_CHECK_SA_LEN(ac_cv_sockaddr_has_sa_len) if test "$ac_cv_sockaddr_has_sa_len" = no; then missing_includes=yes fi dnl dnl check sizeof basic types. dnl They're very likely to be wrong for cross-compiling. AC_CHECK_SIZEOF(char, 1) AC_CHECK_SIZEOF(short, 2) AC_CHECK_SIZEOF(int, 4) AC_CHECK_SIZEOF(long, 4) dnl dnl Checks for u_intXX_t dnl AC_CHECK_BITTYPES(ac_cv_bittypes) dnl if test "$ac_cv_bittypes" = no; then dnl missing_includes=yes dnl fi dnl dnl Checks for addrinfo structure AC_STRUCT_ADDRINFO(ac_cv_addrinfo) if test "$ac_cv_addrinfo" = no; then missing_includes=yes fi dnl dnl Checks for NI_MAXSERV AC_NI_MAXSERV(ac_cv_maxserv) if test "$ac_cv_maxserv" = no; then missing_includes=yes fi dnl dnl Checks for NI_NAMEREQD AC_NI_NAMEREQD(ac_cv_namereqd) if test "$ac_cv_namereqd" = no; then missing_includes=yes fi dnl dnl Checks for sockaddr_storage structure AC_STRUCT_SA_STORAGE(ac_cv_sa_storage) if test "$ac_cv_sa_storage" = no; then missing_includes=yes fi dnl dnl Checks for IN[6]ADDRSZ AC_CHECK_ADDRSZ(ac_cv_addrsz) if test "$ac_cv_addrsz" = no; then missing_includes=yes fi dnl dnl Checks for RES_USE_INET6 AC_CHECK_RES_USE_INET6(ac_cv_res_inet6) if test "$ac_cv_res_inet6" = no; then missing_includes=yes fi dnl dnl Checks for res_state_ext structure AC_STRUCT_RES_STATE_EXT(ac_cv_res_state_ext) if test "$ac_cv_res_state_ext" = no; then missing_includes=yes fi dnl dnl Checks if res_state structure has nsort member. AC_STRUCT_RES_STATE(ac_cv_res_state) dnl dnl set additional include path if necessary if test "$missing_includes" = "yes"; then CPPFLAGS="$CPPFLAGS -I\$(srcdir)/missing" V_INCLS="$V_INCLS -I\$(srcdir)/missing" fi AC_REPLACE_FUNCS(vfprintf strcasecmp strlcat strlcpy strdup) AC_CHECK_FUNCS(ether_ntohost, [ AC_CACHE_CHECK(for buggy ether_ntohost, ac_cv_buggy_ether_ntohost, [ AC_TRY_RUN([ #include #include #include #include int main(int argc, char **argv) { u_char ea[6] = { 0xff, 0xff, 0xff, 0xff, 0xff }; char name[MAXHOSTNAMELEN]; ether_ntohost(name, (struct ether_addr *)ea); exit(0); } ], [ac_cv_buggy_ether_ntohost=no], [ac_cv_buggy_ether_ntohost=yes], [ac_cv_buggy_ether_ntohost=not while cross-compiling])]) if test "$ac_cv_buggy_ether_ntohost" = "no"; then AC_DEFINE(USE_ETHER_NTOHOST) fi ]) AC_CHECK_FUNCS(setlinebuf) needsnprintf=no AC_CHECK_FUNCS(vsnprintf snprintf,, [needsnprintf=yes]) if test $needsnprintf = yes; then LIBOBJS="$LIBOBJS snprintf.o" fi AC_LBL_TYPE_SIGNAL AC_CHECK_LIB(dnet, dnet_htoa) AC_CHECK_LIB(rpc, main) dnl It's unclear why we might need -lrpc dnl HP/UX may need -lnsl for getrpcbynumber. AC_SEARCH_LIBS(getrpcbynumber, nsl) dnl AC_CHECK_LIB(z, uncompress) dnl AC_CHECK_HEADERS(zlib.h) AC_LBL_LIBPCAP(V_PCAPDEP, V_INCLS) 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 case "$host_os" in aix*) dnl Workaround to enable certain features AC_DEFINE(_SUN) ;; irix*) V_GROUP=sys ;; osf*) V_GROUP=system ;; solaris*) V_GROUP=sys ;; esac if test -f /dev/bpf0 ; then V_GROUP=bpf fi AC_LBL_CHECK_TYPE(u_int8_t, u_char) AC_LBL_CHECK_TYPE(int16_t, short) AC_LBL_CHECK_TYPE(u_int16_t, u_short) AC_LBL_CHECK_TYPE(int32_t, int) AC_LBL_CHECK_TYPE(u_int32_t, u_int) AC_LBL_DEVEL(V_CCOPT) AC_LBL_SOCKADDR_SA_LEN AC_LBL_UNALIGNED_ACCESS AC_VAR_H_ERRNO AC_ARG_WITH(crypto, [ --without-crypto disable crypto support], [], [ AC_MSG_CHECKING(for SSLeay) ac_cv_ssleay_path=no incdir=no for dir in /usr /usr/local /usr/local/ssl /usr/pkg; do if test -d $dir/lib -a -f $dir/lib/libcrypto.a; then ac_cv_ssleay_path=$dir fi if test -d $dir/include/openssl -a -f $dir/include/openssl/des.h; then incdir="-I$dir/include" fi if test "$ac_cv_ssleay_path" != "no" -a "$incdir" != "no"; then break; else ac_cv_ssleay_path=no incdir=no fi done AC_MSG_RESULT($ac_cv_ssleay_path) if test "$ac_cv_ssleay_path" != no; then V_INCLS="$V_INCLS $incdir" LDFLAGS="-L$dir/lib $LDFLAGS" if test -f $ac_cv_ssleay_path/lib/libRSAglue.a; then LIBS="$LIBS -lRSAglue" fi if test -f $ac_cv_ssleay_path/lib/librsaref.a; then LIBS="$LIBS -lrsaref" fi AC_CHECK_LIB(crypto, des_cbc_encrypt) bak_CPPFLAGS=$CPPFLAGS CPPFLAGS="$CPPFLAGS $V_INCLS" AC_CHECK_HEADERS(cast.h) if test "$ac_cv_header_cast_h" = "yes"; then AC_MSG_CHECKING(for buggy CAST128) AC_TRY_RUN(dnl [ #include main() { unsigned char key[] = {0x01,0x23,0x45,0x67,0x12}; unsigned char in[] = {0x01,0x23,0x45,0x67,0x89,0xAB,0xCD,0xEF}; unsigned char out[sizeof(in)]; unsigned char ok[] = {0x7A,0xC8,0x16,0xD1,0x6E,0x9B,0x30,0x2E}; CAST_KEY ks; CAST_set_key(&ks, sizeof(key), key); CAST_ecb_encrypt(in, out, &ks, CAST_ENCRYPT); if (memcmp(out, ok, sizeof(ok)) != 0) return 0; else return 1; }], [buggy_cast128=yes], [buggy_cast128=no], [buggy_cast128="cross-compiling, assume yes"]) AC_MSG_RESULT($buggy_cast128) if test "$buggy_cast128" != no; then echo "NOTE: SSLeay 0.9.0b has a bug in CAST128 en/decoding routine." echo "disabling CAST128 support." AC_DEFINE(HAVE_BUGGY_CAST128) fi fi CPPFLAGS=$bak_CPPFLAGS fi ]) AC_CHECK_HEADERS(rc5.h) AC_SUBST(V_CCOPT) AC_SUBST(V_GROUP) AC_SUBST(V_INCLS) AC_SUBST(V_PCAPDEP) AC_SUBST(LOCALSRC) 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) exit 0