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 #include #include ]) if test "$ac_cv_header_net_pfvar_h" = yes; then LOCALSRC="print-pflog.c $LOCALSRC" fi AC_CHECK_HEADERS(netinet/if_ether.h, , , [#include #include ]) if test "$ac_cv_header_netinet_if_ether_h" != yes; then # # The simple test didn't work. # Do we need to include 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 #include #include struct mbuf; struct rtentry; #include ]) 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 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(TCPDUMP_DO_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 enable IPv6, because, # on some platforms (such as SunOS 5.x), the test program requires # the extra networking libraries. # AC_LBL_LIBRARY_NET 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-ip6opts.c print-mobility.c print-ripng.c print-icmp6.c print-frag6.c print-rt6.c print-ospf6.c print-dhcp6.c print-babel.c $LOCALSRC" AC_DEFINE(INET6, 1, [Define if you enable IPv6 support]) ipv6=yes ;; *) AC_MSG_RESULT(no) ipv6=no ;; esac ], AC_COMPILE_IFELSE( [ AC_LANG_SOURCE( [[/* AF_INET6 available check */ #include #include #include #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) LOCALSRC="print-ip6opts.c print-mobility.c print-ripng.c print-icmp6.c print-frag6.c print-rt6.c print-ospf6.c print-dhcp6.c print-babel.c $LOCALSRC" AC_DEFINE(INET6, 1, [Define if you enable IPv6 support]) ipv6=yes], [ AC_MSG_RESULT(no) ipv6=no], [ AC_MSG_RESULT(no) ipv6=no] )) ipv6type=unknown ipv6lib=none ipv6trylibc=no if test "$ipv6" = "yes"; then AC_MSG_CHECKING([ipv6 stack type]) for i in inria kame linux-glibc linux-libinet6 toshiba v6d zeta; do case $i in inria) dnl http://www.kame.net/ AC_EGREP_CPP(yes, [#include #ifdef IPV6_INRIA_VERSION yes #endif], [ipv6type=$i; CFLAGS="-DINET6 $CFLAGS"]) ;; kame) dnl http://www.kame.net/ AC_EGREP_CPP(yes, [#include #ifdef __KAME__ yes #endif], [ipv6type=$i; ipv6lib=inet6; ipv6libdir=/usr/local/v6/lib; ipv6trylibc=yes; CFLAGS="-DINET6 $CFLAGS"]) ;; linux-glibc) dnl http://www.v6.linux.or.jp/ AC_EGREP_CPP(yes, [#include #if defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1 yes #endif], [ipv6type=$i; CFLAGS="-DINET6 $CFLAGS"]) ;; linux-libinet6) dnl http://www.v6.linux.or.jp/ dnl dnl This also matches Solaris 8 and Tru64 UNIX 5.1, dnl and possibly other versions of those OSes dnl if test -d /usr/inet6 -o -f /usr/include/netinet/ip6.h; then ipv6type=$i ipv6lib=inet6 ipv6libdir=/usr/inet6/lib ipv6trylibc=yes; CFLAGS="-DINET6 -I/usr/inet6/include $CFLAGS" fi ;; toshiba) AC_EGREP_CPP(yes, [#include #ifdef _TOSHIBA_INET6 yes #endif], [ipv6type=$i; ipv6lib=inet6; ipv6libdir=/usr/local/v6/lib; CFLAGS="-DINET6 $CFLAGS"]) ;; v6d) AC_EGREP_CPP(yes, [#include #ifdef __V6D__ yes #endif], [ipv6type=$i; ipv6lib=v6; ipv6libdir=/usr/local/v6/lib; CFLAGS="-I/usr/local/v6/include $CFLAGS"]) ;; zeta) AC_EGREP_CPP(yes, [#include #ifdef _ZETA_MINAMI_INET6 yes #endif], [ipv6type=$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 # # XXX - on Tru64 UNIX 5.1, there is no "getaddrinfo()" # function in libc; there are "ngetaddrinfo()" and # "ogetaddrinfo()" functions, and #defines # "getaddrinfo" to be either "ngetaddrinfo" or # "ogetaddrinfo", depending on whether _SOCKADDR_LEN # or _XOPEN_SOURCE_EXTENDED are defined or not. # # So this test doesn't work on Tru64 5.1, and possibly # on other 5.x releases. This causes the configure # script to become confused, and results in libpcap # being unbuildable. # AC_SEARCH_LIBS(getaddrinfo, socket, [dnl AC_MSG_CHECKING(getaddrinfo bug) AC_CACHE_VAL(td_cv_buggygetaddrinfo, [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; hints.ai_protocol = IPPROTO_TCP; 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); } ], td_cv_buggygetaddrinfo=no, td_cv_buggygetaddrinfo=yes, td_cv_buggygetaddrinfo=unknown)]) if test "$td_cv_buggygetaddrinfo" = no; then AC_MSG_RESULT(good) elif test "$td_cv_buggygetaddrinfo" = unknown; then AC_MSG_RESULT([unknown (cross-compiling)]) else AC_MSG_RESULT(buggy) fi if test "$td_cv_buggygetaddrinfo" = "yes"; then # # XXX - it doesn't appear that "ipv6type" can ever be # set to "linux". Should this be testing for # "linux-glibc", or for that *or* "linux-libinet6"? # If the latter, note that "linux-libinet6" is also # the type given to some non-Linux OSes. # if test "$ipv6type" != "linux"; then echo 'Fatal: You must get working getaddrinfo() function.' echo ' or you can specify "--disable-ipv6"'. exit 1 else echo 'Warning: getaddrinfo() implementation on your system seems be buggy.' echo ' Better upgrade your system library to newest version' echo ' of GNU C library (aka glibc).' fi fi ]) AC_REPLACE_FUNCS(getnameinfo) fi AC_CACHE_CHECK([for dnet_htoa declaration in netdnet/dnetdb.h], [td_cv_decl_netdnet_dnetdb_h_dnet_htoa], [AC_EGREP_HEADER(dnet_htoa, netdnet/dnetdb.h, td_cv_decl_netdnet_dnetdb_h_dnet_htoa=yes, td_cv_decl_netdnet_dnetdb_h_dnet_htoa=no)]) if test "$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 ]) 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 AC_REPLACE_FUNCS(vfprintf strcasecmp 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()])) dnl AC_CHECK_LIB(z, uncompress) dnl AC_CHECK_HEADERS(zlib.h) 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). # # We don't use AC_REPLACE_FUNCS because that uses AC_CHECK_FUNCS which # use AC_CHECK_FUNC which doesn't let us specify the right #includes # to make this work on BSD/OS 4.x. BSD/OS 4.x ships with the BIND8 # resolver, and the way it defines inet_{ntop,pton} is rather strange; # it does not ship with a libc symbol "inet_ntop()", it ships with # "_inet_ntop()", and has a #define macro in one of the system headers # to rename it. # dnl AC_TRY_COMPILE(inet_ntop inet_pton inet_aton) AC_MSG_CHECKING(for inet_ntop) AC_TRY_LINK([#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_LIBOBJ(inet_ntop)]) AC_MSG_CHECKING(for inet_pton) AC_TRY_LINK([#include #include #include #include ], [char src[128], dst[4]; inet_pton(AF_INET, src, dst);], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) AC_LIBOBJ(inet_pton)]) AC_MSG_CHECKING(for inet_aton) AC_TRY_LINK([#include #include #include ], [char src[128]; struct in_addr dst; inet_aton(src, &dst);], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) AC_LIBOBJ(inet_aton)]) # # Check for these after AC_LBL_LIBPCAP, for the same reason. # # 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 . # Some might have it, but declare it in # (And some might have it but document it as something declared in # , although 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 #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, 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 ? # if test "$ac_cv_header_netinet_if_ether_h" = yes; then # # Yes. Does it declare ether_ntohost()? # AC_CHECK_DECL(ether_ntohost, [ AC_DEFINE(NETINET_IF_ETHER_H_DECLARES_ETHER_NTOHOST,, [Define to 1 if netinet/if_ether.h declares `ether_ntohost']) ],, [ #include #include #include #include struct mbuf; struct rtentry; #include #include ]) fi # # Did that succeed? # if test "$ac_cv_have_decl_ether_ntohost" != yes; then # # No, how about , as on Linux? # AC_CHECK_HEADERS(netinet/ether.h) if test "$ac_cv_header_netinet_ether_h" = yes; then # # We have it - does it declare ether_ntohost()? # Unset ac_cv_have_decl_ether_ntohost so we don't # treat the previous failure as a cached value and # suppress the next test. # unset ac_cv_have_decl_ether_ntohost AC_CHECK_DECL(ether_ntohost, [ AC_DEFINE(NETINET_ETHER_H_DECLARES_ETHER_NTOHOST,, [Define to 1 if netinet/ether.h declares `ether_ntohost']) ],, [ #include ]) fi fi # # Is ether_ntohost() declared? # if test "$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 #include #include #include struct mbuf; struct rtentry; #include #include ]) 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 $LDFLAGS", ,-L/lib) dnl portability macros for getaddrinfo/getnameinfo dnl dnl Check for sa_len AC_CHECK_SA_LEN(ac_cv_sockaddr_has_sa_len) if test "$ac_cv_sockaddr_has_sa_len" = no; then missing_includes=yes fi dnl dnl Check 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 $V_INCLS" AC_CHECK_TYPES(pcap_if_t, , , [#include ]) CPPFLAGS="$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 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 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 ]) 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 ]) 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 ]) 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 ]) # # Check for # 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 #include #include 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 $V_INCLS" AC_CHECK_HEADERS(pcap/bluetooth.h,,,[#include "tcpdump-stdinc.h"]) AC_CHECK_HEADERS(pcap/nflog.h,,,[#include "tcpdump-stdinc.h"]) AC_CHECK_HEADERS(pcap/usb.h,,,[#include "tcpdump-stdinc.h"]) CPPFLAGS="$savedcppflags" AC_PROG_RANLIB AC_CHECK_TOOL([AR], [ar]) AC_LBL_DEVEL(V_CCOPT) AC_LBL_SOCKADDR_SA_LEN AC_LBL_UNALIGNED_ACCESS AC_VAR_H_ERRNO # Check for OpenSSL libcrypto AC_MSG_CHECKING(whether to use OpenSSL libcrypto) # Specify location for both includes and libraries. want_libcrypto=ifavailable AC_ARG_WITH(crypto, AS_HELP_STRING([--with-crypto], [use OpenSSL libcrypto @<:@default=yes, if available@:>@]), [ if test $withval = no then want_libcrypto=no AC_MSG_RESULT(no) elif test $withval = yes then want_libcrypto=yes AC_MSG_RESULT(yes) fi ],[ # # Use libcrypto if it's present, otherwise don't. # want_libcrypto=ifavailable AC_MSG_RESULT([yes, if available]) ]) if test "$want_libcrypto" != "no"; then AC_CHECK_LIB(crypto, DES_cbc_encrypt) AC_CHECK_HEADERS(openssl/evp.h) 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