xref: /freebsd/contrib/tcpdump/configure.in (revision a3e8fd0b7f663db7eafff527d5c3ca3bcfa8a537) 
1dnl @(#) $Header: /tcpdump/master/tcpdump/configure.in,v 1.145 2002/01/17 05:00:16 guy Exp $ (LBL)
2dnl
3dnl Copyright (c) 1994, 1995, 1996, 1997
4dnl	The Regents of the University of California.  All rights reserved.
5dnl
6dnl Process this file with autoconf to produce a configure script.
7dnl
8
9AC_REVISION($Revision: 1.145 $)
10AC_PREREQ(2.13)
11AC_INIT(tcpdump.c)
12
13AC_CANONICAL_HOST
14
15AC_LBL_C_INIT(V_CCOPT, V_INCLS)
16AC_C_INLINE
17AC_C___ATTRIBUTE__
18
19AC_CHECK_HEADERS(fcntl.h rpc/rpcent.h netinet/if_ether.h)
20AC_HEADER_TIME
21
22case "$host_os" in
23
24linux*)
25	AC_MSG_CHECKING(Linux kernel version)
26 	if test "$cross_compiling" = yes; then
27 		AC_CACHE_VAL(ac_cv_linux_vers,
28 		    ac_cv_linux_vers=unknown)
29 	else
30 		AC_CACHE_VAL(ac_cv_linux_vers,
31 		    ac_cv_linux_vers=`uname -r 2>&1 | \
32 			sed -n -e '$s/.* //' -e '$s/\..*//p'`)
33 	fi
34	AC_MSG_RESULT($ac_cv_linux_vers)
35 	if test $ac_cv_linux_vers = unknown ; then
36 		AC_MSG_ERROR(cannot determine linux version when cross-compiling)
37 	fi
38	if test $ac_cv_linux_vers -lt 2 ; then
39		AC_MSG_ERROR(version 2 or higher required; see the INSTALL doc for more info)
40	fi
41	;;
42
43*)
44	;;
45esac
46
47
48AC_CHECK_HEADERS(smi.h)
49AC_CHECK_LIB(smi, smiInit)
50if test "$ac_cv_header_smi_h" = yes -a "$ac_cv_lib_smi_smiInit" = yes
51then
52AC_MSG_CHECKING([whether to enable libsmi])
53        AC_TRY_RUN([ /* libsmi available check */
54#include <smi.h>
55main()
56{
57  int current, revision, age, n;
58  const int required = 2;
59  if (smiInit(""))
60    exit(1);
61  if (strcmp(SMI_LIBRARY_VERSION, smi_library_version))
62    exit(2);
63  n = sscanf(smi_library_version, "%d:%d:%d", &current, &revision, &age);
64  if (n != 3)
65    exit(3);
66  if (required < current - age || required > current)
67    exit(4);
68  exit(0);
69}
70],
71[ AC_MSG_RESULT(yes)
72  AC_DEFINE(LIBSMI)
73  libsmi=yes],
74dnl autoconf documentation says that $? contains the exit value.
75dnl reality is that it does not.  We leave this in just in case
76dnl autoconf ever comes back to match the documentation.
77[ case $? in
78  1) AC_MSG_RESULT(no - smiInit failed) ;;
79  2) AC_MSG_RESULT(no - header/library version mismatch) ;;
80  3) AC_MSG_RESULT(no - can't determine library version) ;;
81  4) AC_MSG_RESULT(no - too old) ;;
82  *) AC_MSG_RESULT(no) ;;
83  esac
84  libsmi=no],
85[ AC_MSG_RESULT(not when cross-compiling)
86  libsmi=no]
87)
88fi
89
90AC_MSG_CHECKING([whether to enable the possibly-buggy SMB printer])
91AC_ARG_ENABLE(smb,
92[  --enable-smb            enable possibly-buggy SMB printer [default=yes]
93  --disable-smb           disable possibly-buggy SMB printer],,
94   enableval=yes)
95case "$enableval" in
96yes)	AC_MSG_RESULT(yes)
97	AC_WARN([The SMB printer may have exploitable buffer overflows!!!])
98	AC_DEFINE(TCPDUMP_DO_SMB)
99	LOCALSRC="print-smb.c smbutil.c $LOCALSRC"
100	;;
101*)	AC_MSG_RESULT(no)
102	;;
103esac
104
105CFLAGS="$CFLAGS -Dss_family=__ss_family -Dss_len=__ss_len"
106AC_MSG_CHECKING([whether to enable ipv6])
107AC_ARG_ENABLE(ipv6,
108[  --enable-ipv6           enable ipv6 (with ipv4) support
109  --disable-ipv6          disable ipv6 support],
110[ case "$enableval" in
111yes)   AC_MSG_RESULT(yes)
112       LOCALSRC="print-ip6.c print-ip6opts.c print-ripng.c print-icmp6.c print-frag6.c print-rt6.c print-ospf6.c print-dhcp6.c $LOCALSRC"
113       AC_DEFINE(INET6)
114       ipv6=yes
115       ;;
116*)
117       AC_MSG_RESULT(no)
118       ipv6=no
119       ;;
120  esac ],
121
122  AC_TRY_RUN([ /* AF_INET6 available check */
123#include <sys/types.h>
124#include <sys/socket.h>
125main()
126{
127 if (socket(AF_INET6, SOCK_STREAM, 0) < 0)
128   exit(1);
129 else
130   exit(0);
131}
132],
133[ AC_MSG_RESULT(yes)
134  LOCALSRC="print-ip6.c print-ip6opts.c print-ripng.c print-icmp6.c print-frag6.c print-rt6.c print-ospf6.c print-dhcp6.c $LOCALSRC"
135  AC_DEFINE(INET6)
136  ipv6=yes],
137[ AC_MSG_RESULT(no)
138  ipv6=no],
139[ AC_MSG_RESULT(no)
140  ipv6=no]
141))
142
143ipv6type=unknown
144ipv6lib=none
145ipv6trylibc=no
146
147if test "$ipv6" = "yes"; then
148	AC_MSG_CHECKING([ipv6 stack type])
149	for i in inria kame linux-glibc linux-libinet6 toshiba v6d zeta; do
150		case $i in
151		inria)
152			dnl http://www.kame.net/
153			AC_EGREP_CPP(yes, [dnl
154#include <netinet/in.h>
155#ifdef IPV6_INRIA_VERSION
156yes
157#endif],
158				[ipv6type=$i;
159				CFLAGS="-DINET6 $CFLAGS"])
160			;;
161		kame)
162			dnl http://www.kame.net/
163			AC_EGREP_CPP(yes, [dnl
164#include <netinet/in.h>
165#ifdef __KAME__
166yes
167#endif],
168				[ipv6type=$i;
169				ipv6lib=inet6;
170				ipv6libdir=/usr/local/v6/lib;
171				ipv6trylibc=yes;
172				CFLAGS="-DINET6 $CFLAGS"])
173			;;
174		linux-glibc)
175			dnl http://www.v6.linux.or.jp/
176			AC_EGREP_CPP(yes, [dnl
177#include <features.h>
178#if defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1
179yes
180#endif],
181				[ipv6type=$i;
182				CFLAGS="-DINET6 $CFLAGS"])
183			;;
184		linux-libinet6)
185			dnl http://www.v6.linux.or.jp/
186			if test -d /usr/inet6 -o -f /usr/include/netinet/ip6.h; then
187				ipv6type=$i
188				ipv6lib=inet6
189				ipv6libdir=/usr/inet6/lib
190				ipv6trylibc=yes;
191				CFLAGS="-DINET6 -I/usr/inet6/include $CFLAGS"
192			fi
193			;;
194		toshiba)
195			AC_EGREP_CPP(yes, [dnl
196#include <sys/param.h>
197#ifdef _TOSHIBA_INET6
198yes
199#endif],
200				[ipv6type=$i;
201				ipv6lib=inet6;
202				ipv6libdir=/usr/local/v6/lib;
203				CFLAGS="-DINET6 $CFLAGS"])
204			;;
205		v6d)
206			AC_EGREP_CPP(yes, [dnl
207#include </usr/local/v6/include/sys/v6config.h>
208#ifdef __V6D__
209yes
210#endif],
211				[ipv6type=$i;
212				ipv6lib=v6;
213				ipv6libdir=/usr/local/v6/lib;
214				CFLAGS="-I/usr/local/v6/include $CFLAGS"])
215			;;
216		zeta)
217			AC_EGREP_CPP(yes, [dnl
218#include <sys/param.h>
219#ifdef _ZETA_MINAMI_INET6
220yes
221#endif],
222				[ipv6type=$i;
223				ipv6lib=inet6;
224				ipv6libdir=/usr/local/v6/lib;
225				CFLAGS="-DINET6 $CFLAGS"])
226			;;
227		esac
228		if test "$ipv6type" != "unknown"; then
229			break
230		fi
231	done
232	AC_MSG_RESULT($ipv6type)
233fi
234
235if test "$ipv6" = "yes" -a "$ipv6lib" != "none"; then
236	if test -d $ipv6libdir -a -f $ipv6libdir/lib$ipv6lib.a; then
237		LIBS="-L$ipv6libdir -l$ipv6lib $LIBS"
238		echo "You have $ipv6lib library, using it"
239	else
240		if test "$ipv6trylibc" = "yes"; then
241			echo "You do not have $ipv6lib library, using libc"
242		else
243			echo 'Fatal: no $ipv6lib library found.  cannot continue.'
244			echo "You need to fetch lib$ipv6lib.a from appropriate"
245			echo 'ipv6 kit and compile beforehand.'
246			exit 1
247		fi
248	fi
249fi
250
251
252if test "$ipv6" = "yes"; then
253	AC_SEARCH_LIBS(getaddrinfo, socket, [dnl
254	AC_MSG_CHECKING(getaddrinfo bug)
255	AC_TRY_RUN([
256#include <sys/types.h>
257#include <netdb.h>
258#include <string.h>
259#include <sys/socket.h>
260#include <netinet/in.h>
261
262main()
263{
264  int passive, gaierr, inet4 = 0, inet6 = 0;
265  struct addrinfo hints, *ai, *aitop;
266  char straddr[INET6_ADDRSTRLEN], strport[16];
267
268  for (passive = 0; passive <= 1; passive++) {
269    memset(&hints, 0, sizeof(hints));
270    hints.ai_family = AF_UNSPEC;
271    hints.ai_flags = passive ? AI_PASSIVE : 0;
272    hints.ai_socktype = SOCK_STREAM;
273    if ((gaierr = getaddrinfo(NULL, "54321", &hints, &aitop)) != 0) {
274      (void)gai_strerror(gaierr);
275      goto bad;
276    }
277    for (ai = aitop; ai; ai = ai->ai_next) {
278      if (ai->ai_addr == NULL ||
279          ai->ai_addrlen == 0 ||
280          getnameinfo(ai->ai_addr, ai->ai_addrlen,
281                      straddr, sizeof(straddr), strport, sizeof(strport),
282                      NI_NUMERICHOST|NI_NUMERICSERV) != 0) {
283        goto bad;
284      }
285      switch (ai->ai_family) {
286      case AF_INET:
287        if (strcmp(strport, "54321") != 0) {
288          goto bad;
289        }
290        if (passive) {
291          if (strcmp(straddr, "0.0.0.0") != 0) {
292            goto bad;
293          }
294        } else {
295          if (strcmp(straddr, "127.0.0.1") != 0) {
296            goto bad;
297          }
298        }
299        inet4++;
300        break;
301      case AF_INET6:
302        if (strcmp(strport, "54321") != 0) {
303          goto bad;
304        }
305        if (passive) {
306          if (strcmp(straddr, "::") != 0) {
307            goto bad;
308          }
309        } else {
310          if (strcmp(straddr, "::1") != 0) {
311            goto bad;
312          }
313        }
314        inet6++;
315        break;
316      case AF_UNSPEC:
317        goto bad;
318        break;
319#ifdef AF_UNIX
320      case AF_UNIX:
321#else
322#ifdef AF_LOCAL
323      case AF_LOCAL:
324#endif
325#endif
326      default:
327        /* another family support? */
328        break;
329      }
330    }
331  }
332
333  /* supported family should be 2, unsupported family should be 0 */
334  if (!(inet4 == 0 || inet4 == 2))
335    goto bad;
336  if (!(inet6 == 0 || inet6 == 2))
337    goto bad;
338
339  if (aitop)
340    freeaddrinfo(aitop);
341  exit(0);
342
343 bad:
344  if (aitop)
345    freeaddrinfo(aitop);
346  exit(1);
347}
348],
349	AC_MSG_RESULT(good)
350	buggygetaddrinfo=no,
351	AC_MSG_RESULT(buggy)
352	buggygetaddrinfo=yes,
353	AC_MSG_RESULT(buggy)
354	buggygetaddrinfo=yes)], [buggygetaddrinfo=yes])
355
356	if test "$buggygetaddrinfo" = "yes"; then
357		if test "$ipv6type" != "linux"; then
358			echo 'Fatal: You must get working getaddrinfo() function.'
359			echo '       or you can specify "--disable-ipv6"'.
360			exit 1
361		else
362			echo 'Warning: getaddrinfo() implementation on your system seems be buggy.'
363			echo '         Better upgreade your system library to newest version'
364			echo '         of GNU C library (aka glibc).'
365		fi
366	fi
367	AC_REPLACE_FUNCS(getaddrinfo getnameinfo)
368fi
369dnl AC_TRY_COMPILE(inet_ntop inet_pton inet_aton)
370AC_MSG_CHECKING(for inet_ntop)
371AC_TRY_COMPILE([#include <sys/types.h>
372#include <sys/socket.h>
373#include <netinet/in.h>
374#include <arpa/inet.h>], [char src[4], dst[128];
375inet_ntop(AF_INET, src, dst, sizeof(dst));],
376	[AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)
377	AC_REPLACE_FUNCS(inet_ntop)])
378AC_MSG_CHECKING(for inet_pton)
379AC_TRY_COMPILE([#include <sys/types.h>
380#include <sys/socket.h>
381#include <netinet/in.h>
382#include <arpa/inet.h>], [char src[128], dst[4];
383inet_pton(AF_INET, src, dst);],
384	[AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)
385	AC_REPLACE_FUNCS(inet_pton)])
386AC_MSG_CHECKING(for inet_aton)
387AC_TRY_COMPILE([#include <sys/types.h>
388#include <netinet/in.h>
389#include <arpa/inet.h>], [char src[128];
390struct in_addr dst;
391inet_aton(src, &dst);],
392	[AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)
393	AC_REPLACE_FUNCS(inet_aton)])
394
395dnl portability macros for getaddrinfo/getnameinfo
396dnl
397dnl Check for sa_len
398AC_CHECK_SA_LEN(ac_cv_sockaddr_has_sa_len)
399if test "$ac_cv_sockaddr_has_sa_len" = no; then
400	missing_includes=yes
401fi
402
403dnl
404dnl check sizeof basic types.
405dnl They're very likely to be wrong for cross-compiling.
406AC_CHECK_SIZEOF(char, 1)
407AC_CHECK_SIZEOF(short, 2)
408AC_CHECK_SIZEOF(int, 4)
409AC_CHECK_SIZEOF(long, 4)
410
411dnl
412dnl Checks for u_intXX_t
413dnl AC_CHECK_BITTYPES(ac_cv_bittypes)
414dnl if test "$ac_cv_bittypes" = no; then
415dnl 	missing_includes=yes
416dnl fi
417
418dnl
419dnl Checks for addrinfo structure
420AC_STRUCT_ADDRINFO(ac_cv_addrinfo)
421if test "$ac_cv_addrinfo" = no; then
422	missing_includes=yes
423fi
424
425dnl
426dnl Checks for NI_MAXSERV
427AC_NI_MAXSERV(ac_cv_maxserv)
428if test "$ac_cv_maxserv" = no; then
429	missing_includes=yes
430fi
431
432dnl
433dnl Checks for NI_NAMEREQD
434AC_NI_NAMEREQD(ac_cv_namereqd)
435if test "$ac_cv_namereqd" = no; then
436	missing_includes=yes
437fi
438
439dnl
440dnl Checks for sockaddr_storage structure
441AC_STRUCT_SA_STORAGE(ac_cv_sa_storage)
442if test "$ac_cv_sa_storage" = no; then
443	missing_includes=yes
444fi
445
446dnl
447dnl Checks for IN[6]ADDRSZ
448AC_CHECK_ADDRSZ(ac_cv_addrsz)
449if test "$ac_cv_addrsz" = no; then
450	missing_includes=yes
451fi
452
453dnl
454dnl Checks for RES_USE_INET6
455AC_CHECK_RES_USE_INET6(ac_cv_res_inet6)
456if test "$ac_cv_res_inet6" = no; then
457	missing_includes=yes
458fi
459
460dnl
461dnl Checks for res_state_ext structure
462AC_STRUCT_RES_STATE_EXT(ac_cv_res_state_ext)
463if test "$ac_cv_res_state_ext" = no; then
464	missing_includes=yes
465fi
466
467dnl
468dnl Checks if res_state structure has nsort member.
469AC_STRUCT_RES_STATE(ac_cv_res_state)
470
471dnl
472dnl set additional include path if necessary
473if test "$missing_includes" = "yes"; then
474	CPPFLAGS="$CPPFLAGS -I\$(srcdir)/missing"
475	V_INCLS="$V_INCLS -I\$(srcdir)/missing"
476fi
477
478
479AC_REPLACE_FUNCS(vfprintf strcasecmp strlcat strlcpy strdup)
480AC_CHECK_FUNCS(ether_ntohost, [
481    AC_CACHE_CHECK(for buggy ether_ntohost, ac_cv_buggy_ether_ntohost, [
482	AC_TRY_RUN([
483		#include <netdb.h>
484		#include <sys/types.h>
485		#include <sys/param.h>
486		#include <sys/socket.h>
487
488		int
489		main(int argc, char **argv)
490		{
491			u_char ea[6] = { 0xff, 0xff, 0xff, 0xff, 0xff };
492			char name[MAXHOSTNAMELEN];
493
494			ether_ntohost(name, (struct ether_addr *)ea);
495			exit(0);
496		}
497	], [ac_cv_buggy_ether_ntohost=no],
498	   [ac_cv_buggy_ether_ntohost=yes],
499	   [ac_cv_buggy_ether_ntohost=not while cross-compiling])])
500    if test "$ac_cv_buggy_ether_ntohost" = "no"; then
501	AC_DEFINE(USE_ETHER_NTOHOST)
502    fi
503])
504AC_CHECK_FUNCS(setlinebuf)
505
506needsnprintf=no
507AC_CHECK_FUNCS(vsnprintf snprintf,,
508	[needsnprintf=yes])
509if test $needsnprintf = yes; then
510	LIBOBJS="$LIBOBJS snprintf.o"
511fi
512
513AC_LBL_TYPE_SIGNAL
514
515AC_CHECK_LIB(dnet, dnet_htoa)
516
517AC_CHECK_LIB(rpc, main)		dnl It's unclear why we might need -lrpc
518
519dnl HP/UX may need -lnsl for getrpcbynumber.
520AC_SEARCH_LIBS(getrpcbynumber, nsl)
521
522dnl AC_CHECK_LIB(z, uncompress)
523dnl AC_CHECK_HEADERS(zlib.h)
524
525AC_LBL_LIBPCAP(V_PCAPDEP, V_INCLS)
526
527AC_REPLACE_FUNCS(bpf_dump)	dnl moved to libpcap in 0.6
528
529V_GROUP=0
530if test -f /etc/group -a ! -z "`grep '^wheel:' /etc/group`" ; then
531	V_GROUP=wheel
532fi
533case "$host_os" in
534
535aix*)
536	dnl Workaround to enable certain features
537	AC_DEFINE(_SUN)
538	;;
539
540irix*)
541	V_GROUP=sys
542	;;
543
544osf*)
545	V_GROUP=system
546	;;
547
548solaris*)
549	V_GROUP=sys
550	;;
551esac
552
553if test -f /dev/bpf0 ; then
554	V_GROUP=bpf
555fi
556
557AC_LBL_CHECK_TYPE(u_int8_t, u_char)
558AC_LBL_CHECK_TYPE(int16_t, short)
559AC_LBL_CHECK_TYPE(u_int16_t, u_short)
560AC_LBL_CHECK_TYPE(int32_t, int)
561AC_LBL_CHECK_TYPE(u_int32_t, u_int)
562
563AC_LBL_DEVEL(V_CCOPT)
564
565AC_LBL_SOCKADDR_SA_LEN
566
567AC_LBL_UNALIGNED_ACCESS
568
569AC_VAR_H_ERRNO
570
571AC_ARG_WITH(crypto, [  --without-crypto        disable crypto support],
572	[], [
573AC_MSG_CHECKING(for SSLeay)
574ac_cv_ssleay_path=no
575incdir=no
576for dir in /usr /usr/local /usr/local/ssl /usr/pkg; do
577	if test -d $dir/lib -a -f $dir/lib/libcrypto.a; then
578		ac_cv_ssleay_path=$dir
579	fi
580	if test -d $dir/include/openssl -a -f $dir/include/openssl/des.h; then
581		incdir="-I$dir/include"
582	fi
583	if test "$ac_cv_ssleay_path" != "no" -a "$incdir" != "no"; then
584		break;
585	else
586		ac_cv_ssleay_path=no
587		incdir=no
588	fi
589done
590AC_MSG_RESULT($ac_cv_ssleay_path)
591if test "$ac_cv_ssleay_path" != no; then
592	V_INCLS="$V_INCLS $incdir"
593	LDFLAGS="-L$dir/lib $LDFLAGS"
594	if test -f $ac_cv_ssleay_path/lib/libRSAglue.a; then
595		LIBS="$LIBS -lRSAglue"
596	fi
597	if test -f $ac_cv_ssleay_path/lib/librsaref.a; then
598		LIBS="$LIBS -lrsaref"
599	fi
600	AC_CHECK_LIB(crypto, des_cbc_encrypt)
601
602	bak_CPPFLAGS=$CPPFLAGS
603	CPPFLAGS="$CPPFLAGS $V_INCLS"
604	AC_CHECK_HEADERS(cast.h)
605
606	if test "$ac_cv_header_cast_h" = "yes"; then
607		AC_MSG_CHECKING(for buggy CAST128)
608		AC_TRY_RUN(dnl
609[
610#include <cast.h>
611main()
612{
613	unsigned char key[] = {0x01,0x23,0x45,0x67,0x12};
614	unsigned char in[] = {0x01,0x23,0x45,0x67,0x89,0xAB,0xCD,0xEF};
615	unsigned char out[sizeof(in)];
616	unsigned char ok[] = {0x7A,0xC8,0x16,0xD1,0x6E,0x9B,0x30,0x2E};
617	CAST_KEY ks;
618	CAST_set_key(&ks, sizeof(key), key);
619	CAST_ecb_encrypt(in, out, &ks, CAST_ENCRYPT);
620	if (memcmp(out, ok, sizeof(ok)) != 0)
621		return 0;
622	else
623		return 1;
624}],
625			[buggy_cast128=yes],
626			[buggy_cast128=no],
627			[buggy_cast128="cross-compiling, assume yes"])
628		AC_MSG_RESULT($buggy_cast128)
629		if test "$buggy_cast128" != no; then
630			echo "NOTE: SSLeay 0.9.0b has a bug in CAST128 en/decoding routine."
631			echo "disabling CAST128 support."
632			AC_DEFINE(HAVE_BUGGY_CAST128)
633		fi
634	fi
635
636	CPPFLAGS=$bak_CPPFLAGS
637fi
638])
639AC_CHECK_HEADERS(rc5.h)
640
641AC_SUBST(V_CCOPT)
642AC_SUBST(V_GROUP)
643AC_SUBST(V_INCLS)
644AC_SUBST(V_PCAPDEP)
645AC_SUBST(LOCALSRC)
646
647AC_PROG_INSTALL
648
649AC_CONFIG_HEADER(config.h)
650
651AC_OUTPUT_COMMANDS([if test -f .devel; then
652	echo timestamp > stamp-h
653	cat Makefile-devel-adds >> Makefile
654	make depend
655fi])
656AC_OUTPUT(Makefile)
657exit 0
658