The Tcpdump Group git mirrors - tcpdump/blob - configure.in

   1 dnl @(#) $Header: /tcpdump/master/tcpdump/configure.in,v 1.204 2008-11-18 07:39:20 guy Exp $ (LBL)
   2 dnl
   3 dnl Copyright (c) 1994, 1995, 1996, 1997
   4 dnl     The Regents of the University of California.  All rights reserved.
   5 dnl
   6 dnl Process this file with autoconf to produce a configure script.
   7 dnl
   8
   9 #
  10 # See
  11 #
  12 #       http://ftp.gnu.org/gnu/config/README
  13 #
  14 # for the URLs to use to fetch new versions of config.guess and
  15 # config.sub.
  16 #
  17
  18 AC_REVISION($Revision: 1.204 $)
  19 AC_PREREQ(2.50)
  20 AC_INIT(tcpdump.c)
  21
  22 AC_CANONICAL_HOST
  23
  24 AC_LBL_C_INIT_BEFORE_CC(V_CCOPT, V_INCLS)
  25 AC_PROG_CC
  26 AC_LBL_C_INIT(V_CCOPT, V_INCLS)
  27 AC_LBL_C_INLINE
  28 AC_C___ATTRIBUTE__
  29 if test "$ac_cv___attribute__" = "yes"; then
  30         AC_C___ATTRIBUTE___FORMAT_FUNCTION_POINTER
  31 fi
  32 AC_CHECK_HEADERS(fcntl.h rpc/rpcent.h netdnet/dnetdb.h)
  33 AC_CHECK_HEADERS(net/pfvar.h, , , [#include <sys/types.h>
  34 #include <sys/socket.h>
  35 #include <net/if.h>])
  36 if test "$ac_cv_header_net_pfvar_h" = yes; then
  37         LOCALSRC="print-pflog.c $LOCALSRC"
  38 fi
  39 AC_CHECK_HEADERS(netinet/if_ether.h, , , [#include <sys/types.h>
  40 #include <sys/socket.h>])
  41 if test "$ac_cv_header_netinet_if_ether_h" != yes; then
  42         #
  43         # The simple test didn't work.
  44         # Do we need to include <net/if.h> first?
  45         # Unset ac_cv_header_netinet_if_ether_h so we don't
  46         # treat the previous failure as a cached value and
  47         # suppress the next test.
  48         #
  49         AC_MSG_NOTICE([Rechecking with some additional includes])
  50         unset ac_cv_header_netinet_if_ether_h
  51         AC_CHECK_HEADERS(netinet/if_ether.h, , , [#include <sys/types.h>
  52 #include <sys/socket.h>
  53 #include <netinet/in.h>
  54 struct mbuf;
  55 struct rtentry;
  56 #include <net/if.h>])
  57 fi
  58
  59 AC_HEADER_TIME
  60
  61 case "$host_os" in
  62
  63 linux*)
  64         AC_MSG_CHECKING(Linux kernel version)
  65         if test "$cross_compiling" = yes; then
  66                 AC_CACHE_VAL(ac_cv_linux_vers,
  67                     ac_cv_linux_vers=unknown)
  68         else
  69                 AC_CACHE_VAL(ac_cv_linux_vers,
  70                     ac_cv_linux_vers=`uname -r 2>&1 | \
  71                         sed -n -e '$s/.* //' -e '$s/\..*//p'`)
  72         fi
  73         AC_MSG_RESULT($ac_cv_linux_vers)
  74         if test $ac_cv_linux_vers = unknown ; then
  75                 AC_MSG_ERROR(cannot determine linux version when cross-compiling)
  76         fi
  77         if test $ac_cv_linux_vers -lt 2 ; then
  78                 AC_MSG_ERROR(version 2 or higher required; see the INSTALL doc for more info)
  79         fi
  80         ;;
  81
  82 *)
  83         ;;
  84 esac
  85
  86
  87 AC_ARG_WITH(smi,
  88 [  --with-smi              link with libsmi (allows to load MIBs on the fly to decode SNMP packets. [default=yes]
  89   --without-smi           don't link with libsmi],,
  90    with_smi=yes)
  91
  92 if test "x$with_smi" != "xno" ; then
  93 AC_CHECK_HEADERS(smi.h)
  94 AC_CHECK_LIB(smi, smiInit)
  95 if test "$ac_cv_header_smi_h" = yes -a "$ac_cv_lib_smi_smiInit" = yes
  96 then
  97 AC_MSG_CHECKING([whether to enable libsmi])
  98         AC_TRY_RUN([ /* libsmi available check */
  99 #include <smi.h>
 100 main()
 101 {
 102   int current, revision, age, n;
 103   const int required = 2;
 104   if (smiInit(""))
 105     exit(1);
 106   if (strcmp(SMI_LIBRARY_VERSION, smi_library_version))
 107     exit(2);
 108   n = sscanf(smi_library_version, "%d:%d:%d", &current, &revision, &age);
 109   if (n != 3)
 110     exit(3);
 111   if (required < current - age || required > current)
 112     exit(4);
 113   exit(0);
 114 }
 115 ],
 116 [ AC_MSG_RESULT(yes)
 117   AC_DEFINE(LIBSMI)
 118   libsmi=yes],
 119 dnl autoconf documentation says that $? contains the exit value.
 120 dnl reality is that it does not.  We leave this in just in case
 121 dnl autoconf ever comes back to match the documentation.
 122 [ case $? in
 123   1) AC_MSG_RESULT(no - smiInit failed) ;;
 124   2) AC_MSG_RESULT(no - header/library version mismatch) ;;
 125   3) AC_MSG_RESULT(no - can't determine library version) ;;
 126   4) AC_MSG_RESULT(no - too old) ;;
 127   *) AC_MSG_RESULT(no) ;;
 128   esac
 129   libsmi=no],
 130 [ AC_MSG_RESULT(not when cross-compiling)
 131   libsmi=no]
 132 )
 133 fi
 134 fi
 135
 136 AC_MSG_CHECKING([whether to enable the possibly-buggy SMB printer])
 137 AC_ARG_ENABLE(smb,
 138 [  --enable-smb            enable possibly-buggy SMB printer [default=yes]
 139   --disable-smb           disable possibly-buggy SMB printer],,
 140    enableval=yes)
 141 case "$enableval" in
 142 yes)    AC_MSG_RESULT(yes)
 143         AC_WARN([The SMB printer may have exploitable buffer overflows!!!])
 144         AC_DEFINE(TCPDUMP_DO_SMB)
 145         LOCALSRC="print-smb.c smbutil.c $LOCALSRC"
 146         ;;
 147 *)      AC_MSG_RESULT(no)
 148         ;;
 149 esac
 150
 151 AC_ARG_WITH(user, [  --with-user=USERNAME    drop privileges by default to USERNAME])
 152 AC_MSG_CHECKING([whether to drop root privileges by default])
 153 if test ! -z "$with_user" ; then
 154         AC_DEFINE_UNQUOTED(WITH_USER, "$withval")
 155        AC_MSG_RESULT(to \"$withval\")
 156 else
 157        AC_MSG_RESULT(no)
 158 fi
 159
 160 AC_ARG_WITH(chroot, [  --with-chroot=DIRECTORY when dropping privileges, chroot to DIRECTORY])
 161 AC_MSG_CHECKING([whether to chroot])
 162 if test ! -z "$with_chroot" && test "$with_chroot" != "no" ; then
 163         AC_DEFINE_UNQUOTED(WITH_CHROOT, "$withval")
 164        AC_MSG_RESULT(to \"$withval\")
 165 else
 166        AC_MSG_RESULT(no)
 167 fi
 168
 169 AC_MSG_CHECKING([whether to enable ipv6])
 170 AC_ARG_ENABLE(ipv6,
 171 [  --enable-ipv6           enable ipv6 (with ipv4) support
 172   --disable-ipv6          disable ipv6 support],
 173 [ case "$enableval" in
 174 yes)   AC_MSG_RESULT(yes)
 175        LOCALSRC="print-ip6.c print-ip6opts.c print-mobility.c print-ripng.c print-icmp6.c print-frag6.c print-rt6.c print-ospf6.c print-dhcp6.c $LOCALSRC"
 176        AC_DEFINE(INET6)
 177        ipv6=yes
 178        ;;
 179 *)
 180        AC_MSG_RESULT(no)
 181        ipv6=no
 182        ;;
 183   esac ],
 184
 185   AC_TRY_RUN([ /* AF_INET6 available check */
 186 #include <sys/types.h>
 187 #include <sys/socket.h>
 188 main()
 189 {
 190  if (socket(AF_INET6, SOCK_STREAM, 0) < 0)
 191    exit(1);
 192  else
 193    exit(0);
 194 }
 195 ],
 196 [ AC_MSG_RESULT(yes)
 197   LOCALSRC="print-ip6.c print-ip6opts.c print-mobility.c print-ripng.c print-icmp6.c print-frag6.c print-rt6.c print-ospf6.c print-dhcp6.c $LOCALSRC"
 198   AC_DEFINE(INET6)
 199   ipv6=yes],
 200 [ AC_MSG_RESULT(no)
 201   ipv6=no],
 202 [ AC_MSG_RESULT(no)
 203   ipv6=no]
 204 ))
 205
 206 ipv6type=unknown
 207 ipv6lib=none
 208 ipv6trylibc=no
 209
 210 if test "$ipv6" = "yes"; then
 211         AC_MSG_CHECKING([ipv6 stack type])
 212         for i in inria kame linux-glibc linux-libinet6 toshiba v6d zeta; do
 213                 case $i in
 214                 inria)
 215                         dnl http://www.kame.net/
 216                         AC_EGREP_CPP(yes,
 217 [#include <netinet/in.h>
 218 #ifdef IPV6_INRIA_VERSION
 219 yes
 220 #endif],
 221                                 [ipv6type=$i;
 222                                 CFLAGS="-DINET6 $CFLAGS"])
 223                         ;;
 224                 kame)
 225                         dnl http://www.kame.net/
 226                         AC_EGREP_CPP(yes,
 227 [#include <netinet/in.h>
 228 #ifdef __KAME__
 229 yes
 230 #endif],
 231                                 [ipv6type=$i;
 232                                 ipv6lib=inet6;
 233                                 ipv6libdir=/usr/local/v6/lib;
 234                                 ipv6trylibc=yes;
 235                                 CFLAGS="-DINET6 $CFLAGS"])
 236                         ;;
 237                 linux-glibc)
 238                         dnl http://www.v6.linux.or.jp/
 239                         AC_EGREP_CPP(yes,
 240 [#include <features.h>
 241 #if defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1
 242 yes
 243 #endif],
 244                                 [ipv6type=$i;
 245                                 CFLAGS="-DINET6 $CFLAGS"])
 246                         ;;
 247                 linux-libinet6)
 248                         dnl http://www.v6.linux.or.jp/
 249                         dnl
 250                         dnl This also matches Solaris 8 and Tru64 UNIX 5.1,
 251                         dnl and possibly other versions of those OSes
 252                         dnl
 253                         if test -d /usr/inet6 -o -f /usr/include/netinet/ip6.h; then
 254                                 ipv6type=$i
 255                                 ipv6lib=inet6
 256                                 ipv6libdir=/usr/inet6/lib
 257                                 ipv6trylibc=yes;
 258                                 CFLAGS="-DINET6 -I/usr/inet6/include $CFLAGS"
 259                         fi
 260                         ;;
 261                 toshiba)
 262                         AC_EGREP_CPP(yes,
 263 [#include <sys/param.h>
 264 #ifdef _TOSHIBA_INET6
 265 yes
 266 #endif],
 267                                 [ipv6type=$i;
 268                                 ipv6lib=inet6;
 269                                 ipv6libdir=/usr/local/v6/lib;
 270                                 CFLAGS="-DINET6 $CFLAGS"])
 271                         ;;
 272                 v6d)
 273                         AC_EGREP_CPP(yes,
 274 [#include </usr/local/v6/include/sys/v6config.h>
 275 #ifdef __V6D__
 276 yes
 277 #endif],
 278                                 [ipv6type=$i;
 279                                 ipv6lib=v6;
 280                                 ipv6libdir=/usr/local/v6/lib;
 281                                 CFLAGS="-I/usr/local/v6/include $CFLAGS"])
 282                         ;;
 283                 zeta)
 284                         AC_EGREP_CPP(yes,
 285 [#include <sys/param.h>
 286 #ifdef _ZETA_MINAMI_INET6
 287 yes
 288 #endif],
 289                                 [ipv6type=$i;
 290                                 ipv6lib=inet6;
 291                                 ipv6libdir=/usr/local/v6/lib;
 292                                 CFLAGS="-DINET6 $CFLAGS"])
 293                         ;;
 294                 esac
 295                 if test "$ipv6type" != "unknown"; then
 296                         break
 297                 fi
 298         done
 299         AC_MSG_RESULT($ipv6type)
 300 fi
 301
 302 if test "$ipv6" = "yes" -a "$ipv6lib" != "none"; then
 303         if test -d $ipv6libdir -a -f $ipv6libdir/lib$ipv6lib.a; then
 304                 LIBS="-L$ipv6libdir -l$ipv6lib $LIBS"
 305                 echo "You have $ipv6lib library, using it"
 306         else
 307                 if test "$ipv6trylibc" = "yes"; then
 308                         echo "You do not have $ipv6lib library, using libc"
 309                 else
 310                         echo 'Fatal: no $ipv6lib library found.  cannot continue.'
 311                         echo "You need to fetch lib$ipv6lib.a from appropriate"
 312                         echo 'ipv6 kit and compile beforehand.'
 313                         exit 1
 314                 fi
 315         fi
 316 fi
 317
 318
 319 if test "$ipv6" = "yes"; then
 320         #
 321         # XXX - on Tru64 UNIX 5.1, there is no "getaddrinfo()"
 322         # function in libc; there are "ngetaddrinfo()" and
 323         # "ogetaddrinfo()" functions, and <netdb.h> #defines
 324         # "getaddrinfo" to be either "ngetaddrinfo" or
 325         # "ogetaddrinfo", depending on whether _SOCKADDR_LEN
 326         # or _XOPEN_SOURCE_EXTENDED are defined or not.
 327         #
 328         # So this test doesn't work on Tru64 5.1, and possibly
 329         # on other 5.x releases.  This causes the configure
 330         # script to become confused, and results in libpcap
 331         # being unbuildable.
 332         #
 333         AC_SEARCH_LIBS(getaddrinfo, socket, [dnl
 334         AC_MSG_CHECKING(getaddrinfo bug)
 335         AC_CACHE_VAL(td_cv_buggygetaddrinfo, [AC_TRY_RUN([
 336 #include <sys/types.h>
 337 #include <netdb.h>
 338 #include <string.h>
 339 #include <sys/socket.h>
 340 #include <netinet/in.h>
 341
 342 main()
 343 {
 344   int passive, gaierr, inet4 = 0, inet6 = 0;
 345   struct addrinfo hints, *ai, *aitop;
 346   char straddr[INET6_ADDRSTRLEN], strport[16];
 347
 348   for (passive = 0; passive <= 1; passive++) {
 349     memset(&hints, 0, sizeof(hints));
 350     hints.ai_family = AF_UNSPEC;
 351     hints.ai_flags = passive ? AI_PASSIVE : 0;
 352     hints.ai_socktype = SOCK_STREAM;
 353     hints.ai_protocol = IPPROTO_TCP;
 354     if ((gaierr = getaddrinfo(NULL, "54321", &hints, &aitop)) != 0) {
 355       (void)gai_strerror(gaierr);
 356       goto bad;
 357     }
 358     for (ai = aitop; ai; ai = ai->ai_next) {
 359       if (ai->ai_addr == NULL ||
 360           ai->ai_addrlen == 0 ||
 361           getnameinfo(ai->ai_addr, ai->ai_addrlen,
 362                       straddr, sizeof(straddr), strport, sizeof(strport),
 363                       NI_NUMERICHOST|NI_NUMERICSERV) != 0) {
 364         goto bad;
 365       }
 366       switch (ai->ai_family) {
 367       case AF_INET:
 368         if (strcmp(strport, "54321") != 0) {
 369           goto bad;
 370         }
 371         if (passive) {
 372           if (strcmp(straddr, "0.0.0.0") != 0) {
 373             goto bad;
 374           }
 375         } else {
 376           if (strcmp(straddr, "127.0.0.1") != 0) {
 377             goto bad;
 378           }
 379         }
 380         inet4++;
 381         break;
 382       case AF_INET6:
 383         if (strcmp(strport, "54321") != 0) {
 384           goto bad;
 385         }
 386         if (passive) {
 387           if (strcmp(straddr, "::") != 0) {
 388             goto bad;
 389           }
 390         } else {
 391           if (strcmp(straddr, "::1") != 0) {
 392             goto bad;
 393           }
 394         }
 395         inet6++;
 396         break;
 397       case AF_UNSPEC:
 398         goto bad;
 399         break;
 400 #ifdef AF_UNIX
 401       case AF_UNIX:
 402 #else
 403 #ifdef AF_LOCAL
 404       case AF_LOCAL:
 405 #endif
 406 #endif
 407       default:
 408         /* another family support? */
 409         break;
 410       }
 411     }
 412   }
 413
 414   /* supported family should be 2, unsupported family should be 0 */
 415   if (!(inet4 == 0 || inet4 == 2))
 416     goto bad;
 417   if (!(inet6 == 0 || inet6 == 2))
 418     goto bad;
 419
 420   if (aitop)
 421     freeaddrinfo(aitop);
 422   exit(0);
 423
 424  bad:
 425   if (aitop)
 426     freeaddrinfo(aitop);
 427   exit(1);
 428 }
 429 ],
 430         td_cv_buggygetaddrinfo=no,
 431         td_cv_buggygetaddrinfo=yes,
 432         td_cv_buggygetaddrinfo=yes)])
 433         if test "$td_cv_buggygetaddrinfo" = no; then
 434                 AC_MSG_RESULT(good)
 435         else
 436                 AC_MSG_RESULT(buggy)
 437         fi
 438
 439         if test "$td_cv_buggygetaddrinfo" = "yes"; then
 440                 #
 441                 # XXX - it doesn't appear that "ipv6type" can ever be
 442                 # set to "linux".  Should this be testing for
 443                 # "linux-glibc", or for that *or* "linux-libinet6"?
 444                 # If the latter, note that "linux-libinet6" is also
 445                 # the type given to some non-Linux OSes.
 446                 #
 447                 if test "$ipv6type" != "linux"; then
 448                         echo 'Fatal: You must get working getaddrinfo() function.'
 449                         echo '       or you can specify "--disable-ipv6"'.
 450                         exit 1
 451                 else
 452                         echo 'Warning: getaddrinfo() implementation on your system seems be buggy.'
 453                         echo '         Better upgrade your system library to newest version'
 454                         echo '         of GNU C library (aka glibc).'
 455                 fi
 456         fi
 457         ])
 458         AC_REPLACE_FUNCS(getnameinfo)
 459 fi
 460
 461 AC_CACHE_CHECK([for dnet_htoa declaration in netdnet/dnetdb.h],
 462 [td_cv_decl_netdnet_dnetdb_h_dnet_htoa],
 463 [AC_EGREP_HEADER(dnet_htoa, netdnet/dnetdb.h,
 464         td_cv_decl_netdnet_dnetdb_h_dnet_htoa=yes,
 465         td_cv_decl_netdnet_dnetdb_h_dnet_htoa=no)])
 466 if test "$td_cv_decl_netdnet_dnetdb_h_dnet_htoa" = yes; then
 467         AC_DEFINE(HAVE_NETDNET_DNETDB_H_DNET_HTOA)
 468 fi
 469
 470 dnl
 471 dnl check sizeof basic types.
 472 dnl They're very likely to be wrong for cross-compiling.
 473 AC_CHECK_SIZEOF(char, 1)
 474 AC_CHECK_SIZEOF(short, 2)
 475 AC_CHECK_SIZEOF(int, 4)
 476 AC_CHECK_SIZEOF(long, 4)
 477 AC_CHECK_SIZEOF(long long, 8)
 478
 479 dnl
 480 dnl Checks for addrinfo structure
 481 AC_STRUCT_ADDRINFO(ac_cv_addrinfo)
 482 if test "$ac_cv_addrinfo" = no; then
 483         missing_includes=yes
 484 fi
 485
 486 dnl
 487 dnl Checks for NI_MAXSERV
 488 AC_NI_MAXSERV(ac_cv_maxserv)
 489 if test "$ac_cv_maxserv" = no; then
 490         missing_includes=yes
 491 fi
 492
 493 dnl
 494 dnl Checks for NI_NAMEREQD
 495 AC_NI_NAMEREQD(ac_cv_namereqd)
 496 if test "$ac_cv_namereqd" = no; then
 497         missing_includes=yes
 498 fi
 499
 500 dnl
 501 dnl Checks for sockaddr_storage structure
 502 AC_STRUCT_SA_STORAGE(ac_cv_sa_storage)
 503 if test "$ac_cv_sa_storage" = no; then
 504         missing_includes=yes
 505 fi
 506
 507 dnl
 508 dnl Checks for IN[6]ADDRSZ
 509 AC_CHECK_ADDRSZ(ac_cv_addrsz)
 510 if test "$ac_cv_addrsz" = no; then
 511         missing_includes=yes
 512 fi
 513
 514 dnl
 515 dnl Checks for RES_USE_INET6
 516 AC_CHECK_RES_USE_INET6(ac_cv_res_inet6)
 517 if test "$ac_cv_res_inet6" = no; then
 518         missing_includes=yes
 519 fi
 520
 521 dnl
 522 dnl Checks for res_state_ext structure
 523 AC_STRUCT_RES_STATE_EXT(ac_cv_res_state_ext)
 524 if test "$ac_cv_res_state_ext" = no; then
 525         missing_includes=yes
 526 fi
 527
 528 dnl
 529 dnl Checks if res_state structure has nsort member.
 530 AC_STRUCT_RES_STATE(ac_cv_res_state)
 531
 532
 533 AC_REPLACE_FUNCS(vfprintf strcasecmp strlcat strlcpy strdup strsep)
 534 AC_CHECK_FUNCS(strftime)
 535 AC_CHECK_FUNCS(setlinebuf alarm)
 536
 537 needsnprintf=no
 538 AC_CHECK_FUNCS(vsnprintf snprintf,,
 539         [needsnprintf=yes])
 540 if test $needsnprintf = yes; then
 541         AC_LIBOBJ(snprintf)
 542 fi
 543
 544 AC_LBL_TYPE_SIGNAL
 545
 546 AC_SEARCH_LIBS(dnet_htoa, dnet, AC_DEFINE(HAVE_DNET_HTOA))
 547
 548 AC_CHECK_LIB(rpc, main)         dnl It's unclear why we might need -lrpc
 549
 550 dnl Some platforms may need -lnsl for getrpcbynumber.
 551 AC_SEARCH_LIBS(getrpcbynumber, nsl, AC_DEFINE(HAVE_GETRPCBYNUMBER))
 552
 553 dnl AC_CHECK_LIB(z, uncompress)
 554 dnl AC_CHECK_HEADERS(zlib.h)
 555
 556 AC_LBL_LIBPCAP(V_PCAPDEP, V_INCLS)
 557
 558 #
 559 # Check for these after AC_LBL_LIBPCAP, so we link with the appropriate
 560 # libraries (e.g., "-lsocket -lnsl" on Solaris).
 561 #
 562 # We don't use AC_REPLACE_FUNCS because that uses AC_CHECK_FUNCS which
 563 # use AC_CHECK_FUNC which doesn't let us specify the right #includes
 564 # to make this work on BSD/OS 4.x.  BSD/OS 4.x ships with the BIND8
 565 # resolver, and the way it defines inet_{ntop,pton} is rather strange;
 566 # it does not ship with a libc symbol "inet_ntop()", it ships with
 567 # "_inet_ntop()", and has a #define macro in one of the system headers
 568 # to rename it.
 569 #
 570 dnl AC_TRY_COMPILE(inet_ntop inet_pton inet_aton)
 571 AC_MSG_CHECKING(for inet_ntop)
 572 AC_TRY_LINK([#include <sys/types.h>
 573 #include <sys/socket.h>
 574 #include <netinet/in.h>
 575 #include <arpa/inet.h>], [char src[4], dst[128];
 576 inet_ntop(AF_INET, src, dst, sizeof(dst));],
 577         [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)
 578         AC_LIBOBJ(inet_ntop)])
 579 AC_MSG_CHECKING(for inet_pton)
 580 AC_TRY_LINK([#include <sys/types.h>
 581 #include <sys/socket.h>
 582 #include <netinet/in.h>
 583 #include <arpa/inet.h>], [char src[128], dst[4];
 584 inet_pton(AF_INET, src, dst);],
 585         [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)
 586         AC_LIBOBJ(inet_pton)])
 587 AC_MSG_CHECKING(for inet_aton)
 588 AC_TRY_LINK([#include <sys/types.h>
 589 #include <netinet/in.h>
 590 #include <arpa/inet.h>], [char src[128];
 591 struct in_addr dst;
 592 inet_aton(src, &dst);],
 593         [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)
 594         AC_LIBOBJ(inet_aton)])
 595
 596 #
 597 # Check for these after AC_LBL_LIBPCAP, for the same reason.
 598 #
 599 # You are in a twisty little maze of UN*Xes, all different.
 600 # Some might not have ether_ntohost().
 601 # Some might have it, but not declare it in any header file.
 602 # Some might have it, but declare it in <netinet/if_ether.h>.
 603 # Some might have it, but declare it in <netinet/ether.h>
 604 # (And some might have it but document it as something declared in
 605 # <netinet/ethernet.h>, although <netinet/if_ether.h> appears to work.)
 606 #
 607 # Before you is a C compiler.
 608 #
 609 AC_CHECK_FUNCS(ether_ntohost, [
 610     AC_CACHE_CHECK(for buggy ether_ntohost, ac_cv_buggy_ether_ntohost, [
 611         AC_TRY_RUN([
 612                 #include <netdb.h>
 613                 #include <sys/types.h>
 614                 #include <sys/param.h>
 615                 #include <sys/socket.h>
 616
 617                 int
 618                 main(int argc, char **argv)
 619                 {
 620                         u_char ea[6] = { 0xff, 0xff, 0xff, 0xff, 0xff };
 621                         char name[MAXHOSTNAMELEN];
 622
 623                         ether_ntohost(name, (struct ether_addr *)ea);
 624                         exit(0);
 625                 }
 626         ], [ac_cv_buggy_ether_ntohost=no],
 627            [ac_cv_buggy_ether_ntohost=yes],
 628            [ac_cv_buggy_ether_ntohost="not while cross-compiling"])])
 629     if test "$ac_cv_buggy_ether_ntohost" = "no"; then
 630         AC_DEFINE(USE_ETHER_NTOHOST)
 631     fi
 632 ])
 633 if test "$ac_cv_func_ether_ntohost" = yes -a \
 634     "$ac_cv_buggy_ether_ntohost" = "no"; then
 635         #
 636         # OK, we have ether_ntohost().  Do we have <netinet/if_ether.h>?
 637         #
 638         if test "$ac_cv_header_netinet_if_ether_h" = yes; then
 639                 #
 640                 # Yes.  Does it declare ether_ntohost()?
 641                 #
 642                 AC_CHECK_DECL(ether_ntohost,
 643                     [
 644                         AC_DEFINE(NETINET_IF_ETHER_H_DECLARES_ETHER_NTOHOST,,
 645                             [Define to 1 if netinet/if_ether.h declares `ether_ntohost'])
 646                     ],,
 647                     [
 648 #include <sys/types.h>
 649 #include <sys/socket.h>
 650 #include <netinet/in.h>
 651 #include <arpa/inet.h>
 652 struct mbuf;
 653 struct rtentry;
 654 #include <net/if.h>
 655 #include <netinet/if_ether.h>
 656                     ])
 657         fi
 658         #
 659         # Did that succeed?
 660         #
 661         if test "$ac_cv_have_decl_ether_ntohost" != yes; then
 662                 #
 663                 # No, how about <netinet/ether.h>, as on Linux?
 664                 #
 665                 AC_CHECK_HEADERS(netinet/ether.h)
 666                 if test "$ac_cv_header_netinet_ether_h" = yes; then
 667                         #
 668                         # We have it - does it declare ether_ntohost()?
 669                         # Unset ac_cv_have_decl_ether_ntohost so we don't
 670                         # treat the previous failure as a cached value and
 671                         # suppress the next test.
 672                         #
 673                         unset ac_cv_have_decl_ether_ntohost
 674                         AC_CHECK_DECL(ether_ntohost,
 675                             [
 676                                 AC_DEFINE(NETINET_ETHER_H_DECLARES_ETHER_NTOHOST,,
 677                                     [Define to 1 if netinet/ether.h declares `ether_ntohost'])
 678                             ],,
 679                             [
 680 #include <netinet/ether.h>
 681                             ])
 682                 fi
 683         fi
 684         #
 685         # Is ether_ntohost() declared?
 686         #
 687         if test "$ac_cv_have_decl_ether_ntohost" != yes; then
 688                 #
 689                 # No, we'll have to declare it ourselves.
 690                 # Do we have "struct ether_addr"?
 691                 #
 692                 AC_CHECK_TYPES(struct ether_addr,,,
 693                     [
 694 #include <sys/types.h>
 695 #include <sys/socket.h>
 696 #include <netinet/in.h>
 697 #include <arpa/inet.h>
 698 struct mbuf;
 699 struct rtentry;
 700 #include <net/if.h>
 701 #include <netinet/if_ether.h>
 702                     ])
 703                 AC_DEFINE(HAVE_DECL_ETHER_NTOHOST, 0,
 704                     [Define to 1 if you have the declaration of `ether_ntohost', and to 0 if you
 705 don't.])
 706         else
 707                 AC_DEFINE(HAVE_DECL_ETHER_NTOHOST, 1,
 708                     [Define to 1 if you have the declaration of `ether_ntohost', and to 0 if you
 709 don't.])
 710         fi
 711 fi
 712
 713 # libdlpi is needed for Solaris 11 and later.
 714 AC_CHECK_LIB(dlpi, dlpi_walk, LIBS="$LIBS -ldlpi" LDFLAGS="-L/lib $LDFLAGS", ,-L/lib)
 715
 716 dnl portability macros for getaddrinfo/getnameinfo
 717 dnl
 718 dnl Check for sa_len
 719 AC_CHECK_SA_LEN(ac_cv_sockaddr_has_sa_len)
 720 if test "$ac_cv_sockaddr_has_sa_len" = no; then
 721         missing_includes=yes
 722 fi
 723
 724 #
 725 # Do we have the new open API?  Check for pcap_create, and assume that,
 726 # if we do, we also have pcap_activate() and the other new routines.
 727 AC_CHECK_FUNCS(pcap_create)
 728
 729 AC_CHECK_FUNCS(pcap_findalldevs pcap_dump_flush pcap_lib_version)
 730 if test $ac_cv_func_pcap_findalldevs = "yes" ; then
 731 dnl Check for Mac OS X, which may ship pcap.h from 0.6 but libpcap may
 732 dnl be 0.8; this means that lib has pcap_findalldevs but header doesn't
 733 dnl have pcap_if_t.
 734     savedppflags="$CPPLAGS"
 735     CPPFLAGS="$CPPFLAGS $V_INCLS"
 736     AC_CHECK_TYPES(pcap_if_t, , , [#include <pcap.h>])
 737     CPPFLAGS="$savedcppflags"
 738 fi
 739
 740 if test $ac_cv_func_pcap_lib_version = "no" ; then
 741     AC_MSG_CHECKING(whether pcap_version is defined by libpcap)
 742     AC_TRY_LINK([],
 743        [
 744         extern char pcap_version[];
 745
 746         return (int)pcap_version;
 747        ],
 748        ac_lbl_cv_pcap_version_defined=yes,
 749        ac_lbl_cv_pcap_version_defined=no)
 750     if test "$ac_lbl_cv_pcap_version_defined" = yes ; then
 751         AC_MSG_RESULT(yes)
 752         AC_DEFINE(HAVE_PCAP_VERSION)
 753     else
 754         AC_MSG_RESULT(no)
 755     fi
 756 fi
 757 AC_MSG_CHECKING(whether pcap_debug is defined by libpcap)
 758 AC_TRY_LINK([],
 759    [
 760         extern int pcap_debug;
 761
 762         return pcap_debug;
 763    ],
 764    ac_lbl_cv_pcap_debug_defined=yes,
 765    ac_lbl_cv_pcap_debug_defined=no)
 766 if test "$ac_lbl_cv_pcap_debug_defined" = yes ; then
 767         AC_MSG_RESULT(yes)
 768         AC_DEFINE(HAVE_PCAP_DEBUG)
 769 else
 770         AC_MSG_RESULT(no)
 771         #
 772         # OK, what about "yydebug"?
 773         #
 774         AC_MSG_CHECKING(whether yydebug is defined by libpcap)
 775         AC_TRY_LINK([],
 776            [
 777                 extern int yydebug;
 778
 779                 return yydebug;
 780            ],
 781            ac_lbl_cv_yydebug_defined=yes,
 782            ac_lbl_cv_yydebug_defined=no)
 783         if test "$ac_lbl_cv_yydebug_defined" = yes ; then
 784                 AC_MSG_RESULT(yes)
 785                 AC_DEFINE(HAVE_YYDEBUG)
 786         else
 787                 AC_MSG_RESULT(no)
 788         fi
 789 fi
 790 AC_REPLACE_FUNCS(bpf_dump)      dnl moved to libpcap in 0.6
 791
 792 V_GROUP=0
 793 if test -f /etc/group -a ! -z "`grep '^wheel:' /etc/group`" ; then
 794         V_GROUP=wheel
 795 fi
 796 #
 797 # Assume V7/BSD convention for man pages (file formats in section 5,
 798 # miscellaneous info in section 7).
 799 #
 800 MAN_FILE_FORMATS=5
 801 MAN_MISC_INFO=7
 802 case "$host_os" in
 803
 804 aix*)
 805         dnl Workaround to enable certain features
 806         AC_DEFINE(_SUN)
 807         ;;
 808
 809 hpux*)
 810         #
 811         # Use System V conventions for man pages.
 812         #
 813         MAN_FILE_FORMATS=4
 814         MAN_MISC_INFO=5
 815         ;;
 816
 817 irix*)
 818         V_GROUP=sys
 819
 820         #
 821         # Use System V conventions for man pages.
 822         #
 823         MAN_FILE_FORMATS=4
 824         MAN_MISC_INFO=5
 825         ;;
 826
 827 osf*)
 828         V_GROUP=system
 829
 830         #
 831         # Use System V conventions for man pages.
 832         #
 833         MAN_FILE_FORMATS=4
 834         MAN_MISC_INFO=5
 835         ;;
 836
 837 solaris*)
 838         V_GROUP=sys
 839
 840         #
 841         # Use System V conventions for man pages.
 842         #
 843         MAN_FILE_FORMATS=4
 844         MAN_MISC_INFO=5
 845         ;;
 846 esac
 847
 848 if test -f /dev/bpf0 ; then
 849         V_GROUP=bpf
 850 fi
 851
 852 #
 853 # Check for some headers introduced in later versions of libpcap
 854 # and used by some printers.
 855 #
 856 savedcppflags="$CPPFLAGS"
 857 CPPFLAGS="$CPPFLAGS $V_INCLS"
 858 AC_CHECK_HEADERS(pcap/bluetooth.h)
 859 AC_CHECK_HEADERS(pcap/usb.h)
 860 CPPFLAGS="$savedcppflags"
 861
 862 AC_CHECK_HEADERS(sys/bitypes.h)
 863
 864 AC_CHECK_TYPE([int8_t], ,
 865         [AC_DEFINE([int8_t], [signed char],
 866         [Define to `signed char' if int8_t not defined.])],
 867         [AC_INCLUDES_DEFAULT
 868 #ifdef HAVE_SYS_BITYPES_H
 869 #include <sys/bitypes.h>
 870 #endif])
 871 AC_CHECK_TYPE([u_int8_t], ,
 872         [AC_DEFINE([u_int8_t], [unsigned char],
 873         [Define to `unsigned char' if u_int8_t not defined.])],
 874         [AC_INCLUDES_DEFAULT
 875 #ifdef HAVE_SYS_BITYPES_H
 876 #include <sys/bitypes.h>
 877 #endif])
 878 AC_CHECK_TYPE([int16_t], ,
 879         [AC_DEFINE([int16_t], [short],
 880         [Define to `short' if int16_t not defined.])]
 881         [AC_INCLUDES_DEFAULT
 882 #ifdef HAVE_SYS_BITYPES_H
 883 #include <sys/bitypes.h>
 884 #endif])
 885 AC_CHECK_TYPE([u_int16_t], ,
 886         [AC_DEFINE([u_int16_t], [unsigned short],
 887         [Define to `unsigned short' if u_int16_t not defined.])],
 888         [AC_INCLUDES_DEFAULT
 889 #ifdef HAVE_SYS_BITYPES_H
 890 #include <sys/bitypes.h>
 891 #endif])
 892 AC_CHECK_TYPE([int32_t], ,
 893         [AC_DEFINE([int32_t], [int],
 894         [Define to `int' if int32_t not defined.])],
 895         [AC_INCLUDES_DEFAULT
 896 #ifdef HAVE_SYS_BITYPES_H
 897 #include <sys/bitypes.h>
 898 #endif])
 899 AC_CHECK_TYPE([u_int32_t], ,
 900         [AC_DEFINE([u_int32_t], [unsigned int],
 901         [Define to `unsigned int' if u_int32_t not defined.])],
 902         [AC_INCLUDES_DEFAULT
 903 #ifdef HAVE_SYS_BITYPES_H
 904 #include <sys/bitypes.h>
 905 #endif])
 906 AC_CHECK_TYPE([int64_t], ,
 907         [AC_DEFINE([int64_t], [long long],
 908         [Define to `long long' if int64_t not defined.])],
 909         [AC_INCLUDES_DEFAULT
 910 #ifdef HAVE_SYS_BITYPES_H
 911 #include <sys/bitypes.h>
 912 #endif])
 913 AC_CHECK_TYPE([u_int64_t], ,
 914         [AC_DEFINE([u_int64_t], [unsigned long long],
 915         [Define to `unsigned long long' if u_int64_t not defined.])],
 916         [AC_INCLUDES_DEFAULT
 917 #ifdef HAVE_SYS_BITYPES_H
 918 #include <sys/bitypes.h>
 919 #endif])
 920
 921 #
 922 # We can't just check for <inttypes.h> - some systems have one that
 923 # doesn't define all the PRI[doxu]64 macros.
 924 #
 925 AC_CHECK_HEADERS(inttypes.h,
 926   [
 927     #
 928     # OK, we have inttypes.h, but does it define those macros?
 929     #
 930     AC_MSG_CHECKING([[whether inttypes.h defines the PRI[doxu]64 macros]])
 931     AC_COMPILE_IFELSE(
 932       [
 933         AC_LANG_SOURCE(
 934           [[
 935             #include <inttypes.h>
 936             #include <stdio.h>
 937             #include <sys/types.h>
 938             #ifdef HAVE_SYS_BITYPES_H
 939             #include <sys/bitypes.h>
 940             #endif
 941
 942             main()
 943             {
 944               printf("%" PRId64 "\n", (u_int64_t)1);
 945               printf("%" PRIo64 "\n", (u_int64_t)1);
 946               printf("%" PRIx64 "\n", (u_int64_t)1);
 947               printf("%" PRIu64 "\n", (u_int64_t)1);
 948             }
 949           ]])
 950       ],
 951       [
 952         AC_MSG_RESULT(yes)
 953         ac_lbl_inttypes_h_defines_formats=yes
 954       ],
 955       [
 956         AC_MSG_RESULT(no)
 957         ac_lbl_inttypes_h_defines_formats=no
 958       ])
 959   ],
 960   [
 961     #
 962     # We don't have inttypes.h, so it obviously can't define those
 963     # macros.
 964     #
 965     ac_lbl_inttypes_h_defines_formats=no
 966   ])
 967 if test "$ac_lbl_inttypes_h_defines_formats" = no; then
 968   AC_LBL_CHECK_64BIT_FORMAT(l,
 969     [
 970       AC_LBL_CHECK_64BIT_FORMAT(ll,
 971         [
 972           AC_LBL_CHECK_64BIT_FORMAT(L,
 973             [
 974               AC_LBL_CHECK_64BIT_FORMAT(q,
 975                 [
 976                   AC_MSG_ERROR([neither %llx nor %Lx nor %qx worked on a 64-bit integer])
 977                 ])
 978             ])
 979         ])
 980     ])
 981 fi
 982
 983 AC_PROG_RANLIB
 984
 985 AC_LBL_DEVEL(V_CCOPT)
 986
 987 AC_LBL_SOCKADDR_SA_LEN
 988
 989 AC_LBL_UNALIGNED_ACCESS
 990
 991 AC_VAR_H_ERRNO
 992
 993 # Check for SSLeay
 994 AC_MSG_CHECKING(whether to use SSLeay libcrypto)
 995 # Specify location for both includes and libraries.
 996 want_libcrypto=youmama
 997 AC_ARG_WITH(crypto,
 998     AS_HELP_STRING([--with-crypto@<:@=PATH@:>@],
 999                    [use SSLeay libcrypto (located in directory PATH, if supplied).  @<:@default=yes, if available@:>@]),
1000 [
1001         if test $withval = no
1002         then
1003                 want_libcrypto=no
1004                 AC_MSG_RESULT(no)
1005         elif test $withval = yes
1006         then
1007                 want_libcrypto=yes
1008                 AC_MSG_RESULT(yes)
1009         else
1010                 want_libcrypto=yes
1011                 AC_MSG_RESULT(yes)
1012                 crypto_dir=$withval
1013         fi
1014 ],[
1015         #
1016         # Use libcrypto if it's present, otherwise don't.
1017         #
1018         want_libcrypto=ifavailable
1019         AC_MSG_RESULT([yes, if available])
1020 ])
1021 if test "$want_libcrypto" != "no"; then
1022         ac_cv_ssleay_path=no
1023         incdir=no
1024         if test "x$crypto_dir" = x; then
1025                 #
1026                 # Location not specified; check the default locations.
1027                 #
1028                 AC_MSG_CHECKING(where SSLeay is located)
1029                 dirs="/usr /usr/local /usr/local/ssl /usr/pkg"
1030                 if test "x${host_alias}" != x; then
1031                         dirs="/usr/${host_alias} $dirs"
1032                 fi
1033                 for dir in $dirs; do
1034                         AC_LBL_SSLEAY($dir)
1035
1036                         if test "$ac_cv_ssleay_path" != "no" -a "$incdir" != "no"; then
1037                                 break;
1038                         else
1039                                 ac_cv_ssleay_path=no
1040                                 incdir=no
1041                         fi
1042                 done
1043                 if test "$ac_cv_ssleay_path" != no; then
1044                         AC_MSG_RESULT($ac_cv_ssleay_path)
1045                 fi
1046         else
1047                 AC_MSG_CHECKING(for SSLeay in $crypto_dir)
1048                 AC_LBL_SSLEAY($crypto_dir)
1049                 if test "$ac_cv_ssleay_path" != no; then
1050                         AC_MSG_RESULT(found)
1051                 fi
1052         fi
1053         if test "$ac_cv_ssleay_path" != no; then
1054                 V_INCLS="$V_INCLS $incdir"
1055                 if test "$dir" != "/usr"; then
1056                         LDFLAGS="-L$dir/lib $LDFLAGS"
1057                 fi
1058                 if test -f $ac_cv_ssleay_path/lib/libRSAglue.a; then
1059                         LIBS="$LIBS -lRSAglue"
1060                 fi
1061                 if test -f $ac_cv_ssleay_path/lib/librsaref.a; then
1062                         LIBS="$LIBS -lrsaref"
1063                 fi
1064                 AC_CHECK_LIB(crypto, DES_cbc_encrypt)
1065
1066                 CPPFLAGS="$CPPFLAGS $V_INCLS"
1067                 AC_CHECK_HEADERS(openssl/evp.h)
1068         else
1069                 #
1070                 # Not found.  Did the user explicitly ask for it?
1071                 #
1072                 AC_MSG_RESULT(not found)
1073                 if test "$want_libcrypto" = yes; then
1074                         AC_MSG_ERROR(SSLeay not found)
1075                 fi
1076         fi
1077 fi
1078
1079 dnl
1080 dnl set additional include path if necessary
1081 if test "$missing_includes" = "yes"; then
1082         CPPFLAGS="$CPPFLAGS -I\$(srcdir)/missing"
1083         V_INCLS="$V_INCLS -I\$(srcdir)/missing"
1084 fi
1085
1086 AC_SUBST(V_CCOPT)
1087 AC_SUBST(V_DEFS)
1088 AC_SUBST(V_GROUP)
1089 AC_SUBST(V_INCLS)
1090 AC_SUBST(V_PCAPDEP)
1091 AC_SUBST(LOCALSRC)
1092 AC_SUBST(MAN_FILE_FORMATS)
1093 AC_SUBST(MAN_MISC_INFO)
1094
1095 AC_PROG_INSTALL
1096
1097 AC_CONFIG_HEADER(config.h)
1098
1099 AC_OUTPUT_COMMANDS([if test -f .devel; then
1100         echo timestamp > stamp-h
1101         cat Makefile-devel-adds >> Makefile
1102         make depend
1103 fi])
1104 AC_OUTPUT(Makefile tcpdump.1)
1105 exit 0