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_PREREQ(2.61) 19 AC_INIT(tcpdump.c) 20 21 AC_CANONICAL_HOST 22 23 AC_LBL_C_INIT_BEFORE_CC(V_INCLS) 24 AC_PROG_CC 25 AC_LBL_C_INIT(V_CCOPT, V_INCLS) 26 AC_LBL_C_INLINE 27 AC_C___ATTRIBUTE__ 28 if test "$ac_cv___attribute__" = "yes"; then 29 AC_C___ATTRIBUTE___UNUSED 30 AC_C___ATTRIBUTE___NORETURN_FUNCTION_POINTER 31 AC_C___ATTRIBUTE___FORMAT 32 if test "$ac_cv___attribute___format" = "yes"; then 33 AC_C___ATTRIBUTE___FORMAT_FUNCTION_POINTER 34 fi 35 fi 36 AC_CHECK_HEADERS(fcntl.h rpc/rpc.h rpc/rpcent.h netdnet/dnetdb.h) 37 AC_CHECK_HEADERS(net/pfvar.h, , , [#include <sys/types.h> 38 #include <sys/socket.h> 39 #include <net/if.h>]) 40 if test "$ac_cv_header_net_pfvar_h" = yes; then 41 LOCALSRC="print-pflog.c $LOCALSRC" 42 fi 43 AC_CHECK_HEADERS(netinet/if_ether.h, , , [#include <sys/types.h> 44 #include <sys/socket.h>]) 45 if test "$ac_cv_header_netinet_if_ether_h" != yes; then 46 # 47 # The simple test didn't work. 48 # Do we need to include <net/if.h> first? 49 # Unset ac_cv_header_netinet_if_ether_h so we don't 50 # treat the previous failure as a cached value and 51 # suppress the next test. 52 # 53 AC_MSG_NOTICE([Rechecking with some additional includes]) 54 unset ac_cv_header_netinet_if_ether_h 55 AC_CHECK_HEADERS(netinet/if_ether.h, , , [#include <sys/types.h> 56 #include <sys/socket.h> 57 #include <netinet/in.h> 58 struct mbuf; 59 struct rtentry; 60 #include <net/if.h>]) 61 fi 62 63 AC_HEADER_TIME 64 65 case "$host_os" in 66 67 darwin*) 68 AC_ARG_ENABLE(universal, 69 AC_HELP_STRING([--disable-universal],[don't build universal on OS X])) 70 if test "$enable_universal" != "no"; then 71 case "$host_os" in 72 73 darwin9.*) 74 # 75 # Leopard. Build for x86 and 32-bit PowerPC, with 76 # x86 first. (That's what Apple does.) 77 # 78 V_CCOPT="$V_CCOPT -arch i386 -arch ppc" 79 LDFLAGS="$LDFLAGS -arch i386 -arch ppc" 80 ;; 81 82 darwin10.*) 83 # 84 # Snow Leopard. Build for x86-64 and x86, with 85 # x86-64 first. (That's what Apple does.) 86 # 87 V_CCOPT="$V_CCOPT -arch x86_64 -arch i386" 88 LDFLAGS="$LDFLAGS -arch x86_64 -arch i386" 89 ;; 90 esac 91 fi 92 ;; 93 94 linux*) 95 AC_MSG_CHECKING(Linux kernel version) 96 if test "$cross_compiling" = yes; then 97 AC_CACHE_VAL(ac_cv_linux_vers, 98 ac_cv_linux_vers=unknown) 99 else 100 AC_CACHE_VAL(ac_cv_linux_vers, 101 ac_cv_linux_vers=`uname -r 2>&1 | \ 102 sed -n -e '$s/.* //' -e '$s/\..*//p'`) 103 fi 104 AC_MSG_RESULT($ac_cv_linux_vers) 105 if test $ac_cv_linux_vers = unknown ; then 106 AC_MSG_ERROR(cannot determine linux version when cross-compiling) 107 fi 108 if test $ac_cv_linux_vers -lt 2 ; then 109 AC_MSG_ERROR(version 2 or higher required; see the INSTALL doc for more info) 110 fi 111 ;; 112 113 *) 114 ;; 115 esac 116 117 118 AC_ARG_WITH(smi, 119 [ --with-smi link with libsmi (allows to load MIBs on the fly to decode SNMP packets. [default=yes] 120 --without-smi don't link with libsmi],, 121 with_smi=yes) 122 123 if test "x$with_smi" != "xno" ; then 124 AC_CHECK_HEADERS(smi.h) 125 AC_CHECK_LIB(smi, smiInit) 126 if test "$ac_cv_header_smi_h" = yes -a "$ac_cv_lib_smi_smiInit" = yes 127 then 128 AC_MSG_CHECKING([whether to enable libsmi]) 129 AC_TRY_RUN([ /* libsmi available check */ 130 #include <smi.h> 131 main() 132 { 133 int current, revision, age, n; 134 const int required = 2; 135 if (smiInit("")) 136 exit(1); 137 if (strcmp(SMI_LIBRARY_VERSION, smi_library_version)) 138 exit(2); 139 n = sscanf(smi_library_version, "%d:%d:%d", ¤t, &revision, &age); 140 if (n != 3) 141 exit(3); 142 if (required < current - age || required > current) 143 exit(4); 144 exit(0); 145 } 146 ], 147 [ AC_MSG_RESULT(yes) 148 AC_DEFINE(LIBSMI, 1, [Define if you enable support for libsmi]) 149 libsmi=yes], 150 dnl autoconf documentation says that $? contains the exit value. 151 dnl reality is that it does not. We leave this in just in case 152 dnl autoconf ever comes back to match the documentation. 153 [ case $? in 154 1) AC_MSG_RESULT(no - smiInit failed) ;; 155 2) AC_MSG_RESULT(no - header/library version mismatch) ;; 156 3) AC_MSG_RESULT(no - can't determine library version) ;; 157 4) AC_MSG_RESULT(no - too old) ;; 158 *) AC_MSG_RESULT(no) ;; 159 esac 160 libsmi=no], 161 [ AC_MSG_RESULT(not when cross-compiling) 162 libsmi=no] 163 ) 164 fi 165 fi 166 167 AC_MSG_CHECKING([whether to enable the possibly-buggy SMB printer]) 168 AC_ARG_ENABLE(smb, 169 [ --enable-smb enable possibly-buggy SMB printer [default=yes] 170 --disable-smb disable possibly-buggy SMB printer],, 171 enableval=yes) 172 case "$enableval" in 173 yes) AC_MSG_RESULT(yes) 174 AC_WARN([The SMB printer may have exploitable buffer overflows!!!]) 175 AC_DEFINE(TCPDUMP_DO_SMB, 1, 176 [define if you want to build the possibly-buggy SMB printer]) 177 LOCALSRC="print-smb.c smbutil.c $LOCALSRC" 178 ;; 179 *) AC_MSG_RESULT(no) 180 ;; 181 esac 182 183 AC_ARG_WITH(user, [ --with-user=USERNAME drop privileges by default to USERNAME]) 184 AC_MSG_CHECKING([whether to drop root privileges by default]) 185 if test ! -z "$with_user" ; then 186 AC_DEFINE_UNQUOTED(WITH_USER, "$withval", 187 [define if should drop privileges by default]) 188 AC_MSG_RESULT(to \"$withval\") 189 else 190 AC_MSG_RESULT(no) 191 fi 192 193 AC_ARG_WITH(chroot, [ --with-chroot=DIRECTORY when dropping privileges, chroot to DIRECTORY]) 194 AC_MSG_CHECKING([whether to chroot]) 195 if test ! -z "$with_chroot" && test "$with_chroot" != "no" ; then 196 AC_DEFINE_UNQUOTED(WITH_CHROOT, "$withval", 197 [define if should chroot when dropping privileges]) 198 AC_MSG_RESULT(to \"$withval\") 199 else 200 AC_MSG_RESULT(no) 201 fi 202 203 # 204 # We must check this before checking whether to enable IPv6, because, 205 # on some platforms (such as SunOS 5.x), the test program requires 206 # the extra networking libraries. 207 # 208 AC_LBL_LIBRARY_NET 209 210 AC_MSG_CHECKING([whether to enable ipv6]) 211 AC_ARG_ENABLE(ipv6, 212 [ --enable-ipv6 enable ipv6 (with ipv4) support 213 --disable-ipv6 disable ipv6 support], 214 [ case "$enableval" in 215 yes) AC_MSG_RESULT(yes) 216 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 print-babel.c $LOCALSRC" 217 AC_DEFINE(INET6, 1, [Define if you enable IPv6 support]) 218 ipv6=yes 219 ;; 220 *) 221 AC_MSG_RESULT(no) 222 ipv6=no 223 ;; 224 esac ], 225 226 AC_COMPILE_IFELSE( 227 [ 228 AC_LANG_SOURCE( 229 [[/* AF_INET6 available check */ 230 #include <sys/types.h> 231 #include <sys/socket.h> 232 #include <netinet/in.h> 233 #ifdef AF_INET6 234 void 235 foo(struct in6_addr *addr) 236 { 237 memset(addr, 0, sizeof (struct in6_addr)); 238 } 239 #else 240 #error "AF_INET6 not defined" 241 #endif 242 ]]) 243 ], 244 [ AC_MSG_RESULT(yes) 245 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 print-babel.c $LOCALSRC" 246 AC_DEFINE(INET6, 1, [Define if you enable IPv6 support]) 247 ipv6=yes], 248 [ AC_MSG_RESULT(no) 249 ipv6=no], 250 [ AC_MSG_RESULT(no) 251 ipv6=no] 252 )) 253 254 ipv6type=unknown 255 ipv6lib=none 256 ipv6trylibc=no 257 258 if test "$ipv6" = "yes"; then 259 AC_MSG_CHECKING([ipv6 stack type]) 260 for i in inria kame linux-glibc linux-libinet6 toshiba v6d zeta; do 261 case $i in 262 inria) 263 dnl http://www.kame.net/ 264 AC_EGREP_CPP(yes, 265 [#include <netinet/in.h> 266 #ifdef IPV6_INRIA_VERSION 267 yes 268 #endif], 269 [ipv6type=$i; 270 CFLAGS="-DINET6 $CFLAGS"]) 271 ;; 272 kame) 273 dnl http://www.kame.net/ 274 AC_EGREP_CPP(yes, 275 [#include <netinet/in.h> 276 #ifdef __KAME__ 277 yes 278 #endif], 279 [ipv6type=$i; 280 ipv6lib=inet6; 281 ipv6libdir=/usr/local/v6/lib; 282 ipv6trylibc=yes; 283 CFLAGS="-DINET6 $CFLAGS"]) 284 ;; 285 linux-glibc) 286 dnl http://www.v6.linux.or.jp/ 287 AC_EGREP_CPP(yes, 288 [#include <features.h> 289 #if defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1 290 yes 291 #endif], 292 [ipv6type=$i; 293 CFLAGS="-DINET6 $CFLAGS"]) 294 ;; 295 linux-libinet6) 296 dnl http://www.v6.linux.or.jp/ 297 dnl 298 dnl This also matches Solaris 8 and Tru64 UNIX 5.1, 299 dnl and possibly other versions of those OSes 300 dnl 301 if test -d /usr/inet6 -o -f /usr/include/netinet/ip6.h; then 302 ipv6type=$i 303 ipv6lib=inet6 304 ipv6libdir=/usr/inet6/lib 305 ipv6trylibc=yes; 306 CFLAGS="-DINET6 -I/usr/inet6/include $CFLAGS" 307 fi 308 ;; 309 toshiba) 310 AC_EGREP_CPP(yes, 311 [#include <sys/param.h> 312 #ifdef _TOSHIBA_INET6 313 yes 314 #endif], 315 [ipv6type=$i; 316 ipv6lib=inet6; 317 ipv6libdir=/usr/local/v6/lib; 318 CFLAGS="-DINET6 $CFLAGS"]) 319 ;; 320 v6d) 321 AC_EGREP_CPP(yes, 322 [#include </usr/local/v6/include/sys/v6config.h> 323 #ifdef __V6D__ 324 yes 325 #endif], 326 [ipv6type=$i; 327 ipv6lib=v6; 328 ipv6libdir=/usr/local/v6/lib; 329 CFLAGS="-I/usr/local/v6/include $CFLAGS"]) 330 ;; 331 zeta) 332 AC_EGREP_CPP(yes, 333 [#include <sys/param.h> 334 #ifdef _ZETA_MINAMI_INET6 335 yes 336 #endif], 337 [ipv6type=$i; 338 ipv6lib=inet6; 339 ipv6libdir=/usr/local/v6/lib; 340 CFLAGS="-DINET6 $CFLAGS"]) 341 ;; 342 esac 343 if test "$ipv6type" != "unknown"; then 344 break 345 fi 346 done 347 AC_MSG_RESULT($ipv6type) 348 fi 349 350 if test "$ipv6" = "yes" -a "$ipv6lib" != "none"; then 351 if test -d $ipv6libdir -a -f $ipv6libdir/lib$ipv6lib.a; then 352 LIBS="-L$ipv6libdir -l$ipv6lib $LIBS" 353 echo "You have $ipv6lib library, using it" 354 else 355 if test "$ipv6trylibc" = "yes"; then 356 echo "You do not have $ipv6lib library, using libc" 357 else 358 echo 'Fatal: no $ipv6lib library found. cannot continue.' 359 echo "You need to fetch lib$ipv6lib.a from appropriate" 360 echo 'ipv6 kit and compile beforehand.' 361 exit 1 362 fi 363 fi 364 fi 365 366 367 if test "$ipv6" = "yes"; then 368 # 369 # XXX - on Tru64 UNIX 5.1, there is no "getaddrinfo()" 370 # function in libc; there are "ngetaddrinfo()" and 371 # "ogetaddrinfo()" functions, and <netdb.h> #defines 372 # "getaddrinfo" to be either "ngetaddrinfo" or 373 # "ogetaddrinfo", depending on whether _SOCKADDR_LEN 374 # or _XOPEN_SOURCE_EXTENDED are defined or not. 375 # 376 # So this test doesn't work on Tru64 5.1, and possibly 377 # on other 5.x releases. This causes the configure 378 # script to become confused, and results in libpcap 379 # being unbuildable. 380 # 381 AC_SEARCH_LIBS(getaddrinfo, socket, [dnl 382 AC_MSG_CHECKING(getaddrinfo bug) 383 AC_CACHE_VAL(td_cv_buggygetaddrinfo, [AC_TRY_RUN([ 384 #include <sys/types.h> 385 #include <netdb.h> 386 #include <string.h> 387 #include <sys/socket.h> 388 #include <netinet/in.h> 389 390 main() 391 { 392 int passive, gaierr, inet4 = 0, inet6 = 0; 393 struct addrinfo hints, *ai, *aitop; 394 char straddr[INET6_ADDRSTRLEN], strport[16]; 395 396 for (passive = 0; passive <= 1; passive++) { 397 memset(&hints, 0, sizeof(hints)); 398 hints.ai_family = AF_UNSPEC; 399 hints.ai_flags = passive ? AI_PASSIVE : 0; 400 hints.ai_socktype = SOCK_STREAM; 401 hints.ai_protocol = IPPROTO_TCP; 402 if ((gaierr = getaddrinfo(NULL, "54321", &hints, &aitop)) != 0) { 403 (void)gai_strerror(gaierr); 404 goto bad; 405 } 406 for (ai = aitop; ai; ai = ai->ai_next) { 407 if (ai->ai_addr == NULL || 408 ai->ai_addrlen == 0 || 409 getnameinfo(ai->ai_addr, ai->ai_addrlen, 410 straddr, sizeof(straddr), strport, sizeof(strport), 411 NI_NUMERICHOST|NI_NUMERICSERV) != 0) { 412 goto bad; 413 } 414 switch (ai->ai_family) { 415 case AF_INET: 416 if (strcmp(strport, "54321") != 0) { 417 goto bad; 418 } 419 if (passive) { 420 if (strcmp(straddr, "0.0.0.0") != 0) { 421 goto bad; 422 } 423 } else { 424 if (strcmp(straddr, "127.0.0.1") != 0) { 425 goto bad; 426 } 427 } 428 inet4++; 429 break; 430 case AF_INET6: 431 if (strcmp(strport, "54321") != 0) { 432 goto bad; 433 } 434 if (passive) { 435 if (strcmp(straddr, "::") != 0) { 436 goto bad; 437 } 438 } else { 439 if (strcmp(straddr, "::1") != 0) { 440 goto bad; 441 } 442 } 443 inet6++; 444 break; 445 case AF_UNSPEC: 446 goto bad; 447 break; 448 #ifdef AF_UNIX 449 case AF_UNIX: 450 #else 451 #ifdef AF_LOCAL 452 case AF_LOCAL: 453 #endif 454 #endif 455 default: 456 /* another family support? */ 457 break; 458 } 459 } 460 } 461 462 /* supported family should be 2, unsupported family should be 0 */ 463 if (!(inet4 == 0 || inet4 == 2)) 464 goto bad; 465 if (!(inet6 == 0 || inet6 == 2)) 466 goto bad; 467 468 if (aitop) 469 freeaddrinfo(aitop); 470 exit(0); 471 472 bad: 473 if (aitop) 474 freeaddrinfo(aitop); 475 exit(1); 476 } 477 ], 478 td_cv_buggygetaddrinfo=no, 479 td_cv_buggygetaddrinfo=yes, 480 td_cv_buggygetaddrinfo=yes)]) 481 if test "$td_cv_buggygetaddrinfo" = no; then 482 AC_MSG_RESULT(good) 483 else 484 AC_MSG_RESULT(buggy) 485 fi 486 487 if test "$td_cv_buggygetaddrinfo" = "yes"; then 488 # 489 # XXX - it doesn't appear that "ipv6type" can ever be 490 # set to "linux". Should this be testing for 491 # "linux-glibc", or for that *or* "linux-libinet6"? 492 # If the latter, note that "linux-libinet6" is also 493 # the type given to some non-Linux OSes. 494 # 495 if test "$ipv6type" != "linux"; then 496 echo 'Fatal: You must get working getaddrinfo() function.' 497 echo ' or you can specify "--disable-ipv6"'. 498 exit 1 499 else 500 echo 'Warning: getaddrinfo() implementation on your system seems be buggy.' 501 echo ' Better upgrade your system library to newest version' 502 echo ' of GNU C library (aka glibc).' 503 fi 504 fi 505 ]) 506 AC_REPLACE_FUNCS(getnameinfo) 507 fi 508 509 AC_CACHE_CHECK([for dnet_htoa declaration in netdnet/dnetdb.h], 510 [td_cv_decl_netdnet_dnetdb_h_dnet_htoa], 511 [AC_EGREP_HEADER(dnet_htoa, netdnet/dnetdb.h, 512 td_cv_decl_netdnet_dnetdb_h_dnet_htoa=yes, 513 td_cv_decl_netdnet_dnetdb_h_dnet_htoa=no)]) 514 if test "$td_cv_decl_netdnet_dnetdb_h_dnet_htoa" = yes; then 515 AC_DEFINE(HAVE_NETDNET_DNETDB_H_DNET_HTOA, 1, 516 [define if you have a dnet_htoa declaration in <netdnet/dnetdb.h>]) 517 fi 518 519 dnl 520 dnl Checks for addrinfo structure 521 AC_STRUCT_ADDRINFO(ac_cv_addrinfo) 522 if test "$ac_cv_addrinfo" = no; then 523 missing_includes=yes 524 fi 525 526 dnl 527 dnl Checks for NI_MAXSERV 528 AC_NI_MAXSERV(ac_cv_maxserv) 529 if test "$ac_cv_maxserv" = no; then 530 missing_includes=yes 531 fi 532 533 dnl 534 dnl Checks for NI_NAMEREQD 535 AC_NI_NAMEREQD(ac_cv_namereqd) 536 if test "$ac_cv_namereqd" = no; then 537 missing_includes=yes 538 fi 539 540 dnl 541 dnl Checks for sockaddr_storage structure 542 AC_STRUCT_SA_STORAGE(ac_cv_sa_storage) 543 if test "$ac_cv_sa_storage" = no; then 544 missing_includes=yes 545 fi 546 547 AC_REPLACE_FUNCS(vfprintf strcasecmp strlcat strlcpy strdup strsep) 548 AC_CHECK_FUNCS(fork vfork strftime) 549 AC_CHECK_FUNCS(setlinebuf alarm) 550 551 needsnprintf=no 552 AC_CHECK_FUNCS(vsnprintf snprintf,, 553 [needsnprintf=yes]) 554 if test $needsnprintf = yes; then 555 AC_LIBOBJ(snprintf) 556 fi 557 558 AC_LBL_TYPE_SIGNAL 559 560 AC_SEARCH_LIBS(dnet_htoa, dnet, 561 AC_DEFINE(HAVE_DNET_HTOA, 1, [define if you have the dnet_htoa function])) 562 563 AC_CHECK_LIB(rpc, main) dnl It's unclear why we might need -lrpc 564 565 dnl Some platforms may need -lnsl for getrpcbynumber. 566 AC_SEARCH_LIBS(getrpcbynumber, nsl, 567 AC_DEFINE(HAVE_GETRPCBYNUMBER, 1, [define if you have getrpcbynumber()])) 568 569 dnl AC_CHECK_LIB(z, uncompress) 570 dnl AC_CHECK_HEADERS(zlib.h) 571 572 AC_LBL_LIBPCAP(V_PCAPDEP, V_INCLS) 573 574 # 575 # Check for these after AC_LBL_LIBPCAP, so we link with the appropriate 576 # libraries (e.g., "-lsocket -lnsl" on Solaris). 577 # 578 # We don't use AC_REPLACE_FUNCS because that uses AC_CHECK_FUNCS which 579 # use AC_CHECK_FUNC which doesn't let us specify the right #includes 580 # to make this work on BSD/OS 4.x. BSD/OS 4.x ships with the BIND8 581 # resolver, and the way it defines inet_{ntop,pton} is rather strange; 582 # it does not ship with a libc symbol "inet_ntop()", it ships with 583 # "_inet_ntop()", and has a #define macro in one of the system headers 584 # to rename it. 585 # 586 dnl AC_TRY_COMPILE(inet_ntop inet_pton inet_aton) 587 AC_MSG_CHECKING(for inet_ntop) 588 AC_TRY_LINK([#include <sys/types.h> 589 #include <sys/socket.h> 590 #include <netinet/in.h> 591 #include <arpa/inet.h>], [char src[4], dst[128]; 592 inet_ntop(AF_INET, src, dst, sizeof(dst));], 593 [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) 594 AC_LIBOBJ(inet_ntop)]) 595 AC_MSG_CHECKING(for inet_pton) 596 AC_TRY_LINK([#include <sys/types.h> 597 #include <sys/socket.h> 598 #include <netinet/in.h> 599 #include <arpa/inet.h>], [char src[128], dst[4]; 600 inet_pton(AF_INET, src, dst);], 601 [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) 602 AC_LIBOBJ(inet_pton)]) 603 AC_MSG_CHECKING(for inet_aton) 604 AC_TRY_LINK([#include <sys/types.h> 605 #include <netinet/in.h> 606 #include <arpa/inet.h>], [char src[128]; 607 struct in_addr dst; 608 inet_aton(src, &dst);], 609 [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) 610 AC_LIBOBJ(inet_aton)]) 611 612 # 613 # Check for these after AC_LBL_LIBPCAP, for the same reason. 614 # 615 # You are in a twisty little maze of UN*Xes, all different. 616 # Some might not have ether_ntohost(). 617 # Some might have it, but not declare it in any header file. 618 # Some might have it, but declare it in <netinet/if_ether.h>. 619 # Some might have it, but declare it in <netinet/ether.h> 620 # (And some might have it but document it as something declared in 621 # <netinet/ethernet.h>, although <netinet/if_ether.h> appears to work.) 622 # 623 # Before you is a C compiler. 624 # 625 AC_CHECK_FUNCS(ether_ntohost, [ 626 AC_CACHE_CHECK(for buggy ether_ntohost, ac_cv_buggy_ether_ntohost, [ 627 AC_TRY_RUN([ 628 #include <netdb.h> 629 #include <sys/types.h> 630 #include <sys/param.h> 631 #include <sys/socket.h> 632 633 int 634 main(int argc, char **argv) 635 { 636 u_char ea[6] = { 0xff, 0xff, 0xff, 0xff, 0xff }; 637 char name[MAXHOSTNAMELEN]; 638 639 ether_ntohost(name, (struct ether_addr *)ea); 640 exit(0); 641 } 642 ], [ac_cv_buggy_ether_ntohost=no], 643 [ac_cv_buggy_ether_ntohost=yes], 644 [ac_cv_buggy_ether_ntohost="not while cross-compiling"])]) 645 if test "$ac_cv_buggy_ether_ntohost" = "no"; then 646 AC_DEFINE(USE_ETHER_NTOHOST, 1, 647 [define if you have ether_ntohost() and it works]) 648 fi 649 ]) 650 if test "$ac_cv_func_ether_ntohost" = yes -a \ 651 "$ac_cv_buggy_ether_ntohost" = "no"; then 652 # 653 # OK, we have ether_ntohost(). Do we have <netinet/if_ether.h>? 654 # 655 if test "$ac_cv_header_netinet_if_ether_h" = yes; then 656 # 657 # Yes. Does it declare ether_ntohost()? 658 # 659 AC_CHECK_DECL(ether_ntohost, 660 [ 661 AC_DEFINE(NETINET_IF_ETHER_H_DECLARES_ETHER_NTOHOST,, 662 [Define to 1 if netinet/if_ether.h declares `ether_ntohost']) 663 ],, 664 [ 665 #include <sys/types.h> 666 #include <sys/socket.h> 667 #include <netinet/in.h> 668 #include <arpa/inet.h> 669 struct mbuf; 670 struct rtentry; 671 #include <net/if.h> 672 #include <netinet/if_ether.h> 673 ]) 674 fi 675 # 676 # Did that succeed? 677 # 678 if test "$ac_cv_have_decl_ether_ntohost" != yes; then 679 # 680 # No, how about <netinet/ether.h>, as on Linux? 681 # 682 AC_CHECK_HEADERS(netinet/ether.h) 683 if test "$ac_cv_header_netinet_ether_h" = yes; then 684 # 685 # We have it - does it declare ether_ntohost()? 686 # Unset ac_cv_have_decl_ether_ntohost so we don't 687 # treat the previous failure as a cached value and 688 # suppress the next test. 689 # 690 unset ac_cv_have_decl_ether_ntohost 691 AC_CHECK_DECL(ether_ntohost, 692 [ 693 AC_DEFINE(NETINET_ETHER_H_DECLARES_ETHER_NTOHOST,, 694 [Define to 1 if netinet/ether.h declares `ether_ntohost']) 695 ],, 696 [ 697 #include <netinet/ether.h> 698 ]) 699 fi 700 fi 701 # 702 # Is ether_ntohost() declared? 703 # 704 if test "$ac_cv_have_decl_ether_ntohost" != yes; then 705 # 706 # No, we'll have to declare it ourselves. 707 # Do we have "struct ether_addr"? 708 # 709 AC_CHECK_TYPES(struct ether_addr,,, 710 [ 711 #include <sys/types.h> 712 #include <sys/socket.h> 713 #include <netinet/in.h> 714 #include <arpa/inet.h> 715 struct mbuf; 716 struct rtentry; 717 #include <net/if.h> 718 #include <netinet/if_ether.h> 719 ]) 720 AC_DEFINE(HAVE_DECL_ETHER_NTOHOST, 0, 721 [Define to 1 if you have the declaration of `ether_ntohost', and to 0 if you 722 don't.]) 723 else 724 AC_DEFINE(HAVE_DECL_ETHER_NTOHOST, 1, 725 [Define to 1 if you have the declaration of `ether_ntohost', and to 0 if you 726 don't.]) 727 fi 728 fi 729 730 # libdlpi is needed for Solaris 11 and later. 731 AC_CHECK_LIB(dlpi, dlpi_walk, LIBS="$LIBS -ldlpi" LDFLAGS="-L/lib $LDFLAGS", ,-L/lib) 732 733 dnl portability macros for getaddrinfo/getnameinfo 734 dnl 735 dnl Check for sa_len 736 AC_CHECK_SA_LEN(ac_cv_sockaddr_has_sa_len) 737 if test "$ac_cv_sockaddr_has_sa_len" = no; then 738 missing_includes=yes 739 fi 740 741 # 742 # Do we have the new open API? Check for pcap_create, and assume that, 743 # if we do, we also have pcap_activate() and the other new routines 744 # introduced in libpcap 1.0.0. 745 # 746 AC_CHECK_FUNCS(pcap_create) 747 if test $ac_cv_func_pcap_create = "yes" ; then 748 # 749 # OK, do we have pcap_set_tstamp_type? If so, assume we have 750 # pcap_list_tstamp_types and pcap_free_tstamp_types as well. 751 # 752 AC_CHECK_FUNCS(pcap_set_tstamp_type) 753 fi 754 755 AC_CHECK_FUNCS(pcap_findalldevs pcap_dump_flush pcap_lib_version pcap_setdirection) 756 if test $ac_cv_func_pcap_findalldevs = "yes" ; then 757 dnl Check for Mac OS X, which may ship pcap.h from 0.6 but libpcap may 758 dnl be 0.8; this means that lib has pcap_findalldevs but header doesn't 759 dnl have pcap_if_t. 760 savedcppflags="$CPPFLAGS" 761 CPPFLAGS="$CPPFLAGS $V_INCLS" 762 AC_CHECK_TYPES(pcap_if_t, , , [#include <pcap.h>]) 763 CPPFLAGS="$savedcppflags" 764 fi 765 766 if test $ac_cv_func_pcap_lib_version = "no" ; then 767 AC_MSG_CHECKING(whether pcap_version is defined by libpcap) 768 AC_TRY_LINK([], 769 [ 770 extern char pcap_version[]; 771 772 return (int)pcap_version; 773 ], 774 ac_lbl_cv_pcap_version_defined=yes, 775 ac_lbl_cv_pcap_version_defined=no) 776 if test "$ac_lbl_cv_pcap_version_defined" = yes ; then 777 AC_MSG_RESULT(yes) 778 AC_DEFINE(HAVE_PCAP_VERSION, 1, [define if libpcap has pcap_version]) 779 else 780 AC_MSG_RESULT(no) 781 fi 782 fi 783 AC_MSG_CHECKING(whether pcap_debug is defined by libpcap) 784 AC_TRY_LINK([], 785 [ 786 extern int pcap_debug; 787 788 return pcap_debug; 789 ], 790 ac_lbl_cv_pcap_debug_defined=yes, 791 ac_lbl_cv_pcap_debug_defined=no) 792 if test "$ac_lbl_cv_pcap_debug_defined" = yes ; then 793 AC_MSG_RESULT(yes) 794 AC_DEFINE(HAVE_PCAP_DEBUG, 1, [define if libpcap has pcap_debug]) 795 else 796 AC_MSG_RESULT(no) 797 # 798 # OK, what about "yydebug"? 799 # 800 AC_MSG_CHECKING(whether yydebug is defined by libpcap) 801 AC_TRY_LINK([], 802 [ 803 extern int yydebug; 804 805 return yydebug; 806 ], 807 ac_lbl_cv_yydebug_defined=yes, 808 ac_lbl_cv_yydebug_defined=no) 809 if test "$ac_lbl_cv_yydebug_defined" = yes ; then 810 AC_MSG_RESULT(yes) 811 AC_DEFINE(HAVE_YYDEBUG, 1, [define if libpcap has yydebug]) 812 else 813 AC_MSG_RESULT(no) 814 fi 815 fi 816 AC_REPLACE_FUNCS(bpf_dump) dnl moved to libpcap in 0.6 817 818 V_GROUP=0 819 if test -f /etc/group -a ! -z "`grep '^wheel:' /etc/group`" ; then 820 V_GROUP=wheel 821 fi 822 # 823 # Assume V7/BSD convention for man pages (file formats in section 5, 824 # miscellaneous info in section 7). 825 # 826 MAN_FILE_FORMATS=5 827 MAN_MISC_INFO=7 828 case "$host_os" in 829 830 aix*) 831 dnl Workaround to enable certain features 832 AC_DEFINE(_SUN,1,[define on AIX to get certain functions]) 833 ;; 834 835 hpux*) 836 # 837 # Use System V conventions for man pages. 838 # 839 MAN_FILE_FORMATS=4 840 MAN_MISC_INFO=5 841 ;; 842 843 irix*) 844 V_GROUP=sys 845 846 # 847 # Use System V conventions for man pages. 848 # 849 MAN_FILE_FORMATS=4 850 MAN_MISC_INFO=5 851 ;; 852 853 osf*) 854 V_GROUP=system 855 856 # 857 # Use System V conventions for man pages. 858 # 859 MAN_FILE_FORMATS=4 860 MAN_MISC_INFO=5 861 ;; 862 863 solaris*) 864 V_GROUP=sys 865 866 # 867 # Use System V conventions for man pages. 868 # 869 MAN_FILE_FORMATS=4 870 MAN_MISC_INFO=5 871 ;; 872 esac 873 874 if test -f /dev/bpf0 ; then 875 V_GROUP=bpf 876 fi 877 878 # 879 # Make sure we have definitions for all the C99 specified-width types 880 # (regardless of whether the environment is a C99 environment or not). 881 AC_TYPE_INT8_T 882 AC_TYPE_INT16_T 883 AC_TYPE_INT32_T 884 AC_TYPE_INT64_T 885 AC_TYPE_UINT8_T 886 AC_TYPE_UINT16_T 887 AC_TYPE_UINT32_T 888 AC_TYPE_UINT64_T 889 890 # 891 # For now, we're using the old BSD-style u_intXX_t types, so check for 892 # them. 893 # 894 # We should probably migrate to the standard C uintXX_t types. 895 # 896 AC_CHECK_HEADERS(sys/bitypes.h) 897 898 AC_CHECK_TYPE([u_int8_t], , 899 [AC_DEFINE([u_int8_t], [unsigned char], 900 [Define to `unsigned char' if u_int8_t not defined.])], 901 [AC_INCLUDES_DEFAULT 902 #ifdef HAVE_SYS_BITYPES_H 903 #include <sys/bitypes.h> 904 #endif]) 905 AC_CHECK_TYPE([u_int16_t], , 906 [AC_DEFINE([u_int16_t], [unsigned short], 907 [Define to `unsigned short' if u_int16_t not defined.])], 908 [AC_INCLUDES_DEFAULT 909 #ifdef HAVE_SYS_BITYPES_H 910 #include <sys/bitypes.h> 911 #endif]) 912 AC_CHECK_TYPE([u_int32_t], , 913 [AC_DEFINE([u_int32_t], [unsigned int], 914 [Define to `unsigned int' if u_int32_t not defined.])], 915 [AC_INCLUDES_DEFAULT 916 #ifdef HAVE_SYS_BITYPES_H 917 #include <sys/bitypes.h> 918 #endif]) 919 AC_CHECK_TYPE([u_int64_t], , 920 [AC_DEFINE([u_int64_t], [unsigned long long], 921 [Define to `unsigned long long' if u_int64_t not defined.])], 922 [AC_INCLUDES_DEFAULT 923 #ifdef HAVE_SYS_BITYPES_H 924 #include <sys/bitypes.h> 925 #endif]) 926 927 # 928 # Check for <inttypes.h> 929 # 930 AC_CHECK_HEADERS(inttypes.h, 931 [ 932 # 933 # OK, we have inttypes.h, but does it define all the PRI[doxu]64 macros? 934 # Some systems have an inttypes.h that doesn't define all of them. 935 # 936 AC_MSG_CHECKING([[whether inttypes.h defines the PRI[doxu]64 macros]]) 937 AC_COMPILE_IFELSE( 938 [ 939 AC_LANG_SOURCE( 940 [[ 941 #include <inttypes.h> 942 #include <stdio.h> 943 #include <sys/types.h> 944 #ifdef HAVE_SYS_BITYPES_H 945 #include <sys/bitypes.h> 946 #endif 947 948 main() 949 { 950 printf("%" PRId64 "\n", (u_int64_t)1); 951 printf("%" PRIo64 "\n", (u_int64_t)1); 952 printf("%" PRIx64 "\n", (u_int64_t)1); 953 printf("%" PRIu64 "\n", (u_int64_t)1); 954 } 955 ]]) 956 ], 957 [ 958 AC_MSG_RESULT(yes) 959 ac_lbl_inttypes_h_defines_formats=yes 960 ], 961 [ 962 AC_MSG_RESULT(no) 963 ac_lbl_inttypes_h_defines_formats=no 964 ]) 965 ], 966 [ 967 # 968 # We don't have inttypes.h, so it obviously can't define those 969 # macros. 970 # 971 ac_lbl_inttypes_h_defines_formats=no 972 ]) 973 if test "$ac_lbl_inttypes_h_defines_formats" = no; then 974 AC_LBL_CHECK_64BIT_FORMAT(l, 975 [ 976 AC_LBL_CHECK_64BIT_FORMAT(ll, 977 [ 978 AC_LBL_CHECK_64BIT_FORMAT(L, 979 [ 980 AC_LBL_CHECK_64BIT_FORMAT(q, 981 [ 982 AC_MSG_ERROR([neither %llx nor %Lx nor %qx worked on a 64-bit integer]) 983 ]) 984 ]) 985 ]) 986 ]) 987 fi 988 989 # 990 # Check for some headers introduced in later versions of libpcap 991 # and used by some printers. 992 # 993 # Those headers use the {u_}intN_t types, so we must do this after 994 # we check for what's needed to get them defined. 995 # 996 savedcppflags="$CPPFLAGS" 997 CPPFLAGS="$CPPFLAGS $V_INCLS" 998 AC_CHECK_HEADERS(pcap/bluetooth.h,,,[#include "tcpdump-stdinc.h"]) 999 AC_CHECK_HEADERS(pcap/nflog.h,,,[#include "tcpdump-stdinc.h"]) 1000 AC_CHECK_HEADERS(pcap/usb.h,,,[#include "tcpdump-stdinc.h"]) 1001 CPPFLAGS="$savedcppflags" 1002 1003 AC_PROG_RANLIB 1004 1005 AC_LBL_DEVEL(V_CCOPT) 1006 1007 AC_LBL_SOCKADDR_SA_LEN 1008 1009 AC_LBL_UNALIGNED_ACCESS 1010 1011 AC_VAR_H_ERRNO 1012 1013 # Check for OpenSSL libcrypto 1014 AC_MSG_CHECKING(whether to use OpenSSL libcrypto) 1015 # Specify location for both includes and libraries. 1016 want_libcrypto=ifavailable 1017 AC_ARG_WITH(crypto, 1018 AS_HELP_STRING([--with-crypto], 1019 [use OpenSSL libcrypto @<:@default=yes, if available@:>@]), 1020 [ 1021 if test $withval = no 1022 then 1023 want_libcrypto=no 1024 AC_MSG_RESULT(no) 1025 elif test $withval = yes 1026 then 1027 want_libcrypto=yes 1028 AC_MSG_RESULT(yes) 1029 fi 1030 ],[ 1031 # 1032 # Use libcrypto if it's present, otherwise don't. 1033 # 1034 want_libcrypto=ifavailable 1035 AC_MSG_RESULT([yes, if available]) 1036 ]) 1037 if test "$want_libcrypto" != "no"; then 1038 AC_CHECK_LIB(crypto, DES_cbc_encrypt) 1039 AC_CHECK_HEADERS(openssl/evp.h) 1040 fi 1041 1042 dnl 1043 dnl set additional include path if necessary 1044 if test "$missing_includes" = "yes"; then 1045 CPPFLAGS="$CPPFLAGS -I$srcdir/missing" 1046 V_INCLS="$V_INCLS -I$srcdir/missing" 1047 fi 1048 1049 AC_SUBST(V_CCOPT) 1050 AC_SUBST(V_DEFS) 1051 AC_SUBST(V_GROUP) 1052 AC_SUBST(V_INCLS) 1053 AC_SUBST(V_PCAPDEP) 1054 AC_SUBST(LOCALSRC) 1055 AC_SUBST(MAN_FILE_FORMATS) 1056 AC_SUBST(MAN_MISC_INFO) 1057 1058 AC_PROG_INSTALL 1059 1060 AC_CONFIG_HEADER(config.h) 1061 1062 AC_OUTPUT_COMMANDS([if test -f .devel; then 1063 echo timestamp > stamp-h 1064 cat Makefile-devel-adds >> Makefile 1065 make depend 1066 fi]) 1067 AC_OUTPUT(Makefile tcpdump.1) 1068 exit 0 1069
