summaryrefslogtreecommitdiffstats
path: root/contrib/tcpdump/configure.in
blob: 5a010e7bf8ef2694e71c04a0aea08cfbe57692c7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
dnl @(#) $Header: /tcpdump/master/tcpdump/configure.in,v 1.188.2.8 2007/09/12 19:48:50 guy Exp $ (LBL)
dnl
dnl Copyright (c) 1994, 1995, 1996, 1997
dnl	The Regents of the University of California.  All rights reserved.
dnl
dnl Process this file with autoconf to produce a configure script.
dnl

AC_REVISION($Revision: 1.188.2.8 $)
AC_PREREQ(2.50)
AC_INIT(tcpdump.c)

AC_CANONICAL_HOST

AC_LBL_C_INIT(V_CCOPT, V_INCLS)
AC_LBL_C_INLINE
AC_C___ATTRIBUTE__
AC_CHECK_HEADERS(fcntl.h rpc/rpcent.h netdnet/dnetdb.h)
AC_CHECK_HEADERS(net/pfvar.h, , , [#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>])
if test "$ac_cv_header_net_pfvar_h" == yes; then
	LOCALSRC="print-pflog.c $LOCALSRC"
fi
AC_CHECK_HEADERS(netinet/if_ether.h, , , [#include <sys/types.h>
#include <sys/socket.h>])
if test "$ac_cv_header_netinet_if_ether_h" != yes; then
	#
	# The simple test didn't work.
	# Do we need to include <net/if.h> 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 <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
struct mbuf;
struct rtentry;
#include <net/if.h>])
fi

AC_HEADER_TIME

case "$host_os" in

linux*)
	AC_MSG_CHECKING(Linux kernel version)
 	if test "$cross_compiling" = yes; then
 		AC_CACHE_VAL(ac_cv_linux_vers,
 		    ac_cv_linux_vers=unknown)
 	else
 		AC_CACHE_VAL(ac_cv_linux_vers,
 		    ac_cv_linux_vers=`uname -r 2>&1 | \
 			sed -n -e '$s/.* //' -e '$s/\..*//p'`)
 	fi
	AC_MSG_RESULT($ac_cv_linux_vers)
 	if test $ac_cv_linux_vers = unknown ; then
 		AC_MSG_ERROR(cannot determine linux version when cross-compiling)
 	fi
	if test $ac_cv_linux_vers -lt 2 ; then
		AC_MSG_ERROR(version 2 or higher required; see the INSTALL doc for more info)
	fi
	;;

*)
	;;
esac


AC_CHECK_HEADERS(smi.h)
AC_CHECK_LIB(smi, smiInit)
if test "$ac_cv_header_smi_h" = yes -a "$ac_cv_lib_smi_smiInit" = yes
then
AC_MSG_CHECKING([whether to enable libsmi])
        AC_TRY_RUN([ /* libsmi available check */
#include <smi.h>
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", &current, &revision, &age);
  if (n != 3)
    exit(3);
  if (required < current - age || required > current)
    exit(4);
  exit(0);
}
],
[ AC_MSG_RESULT(yes)
  AC_DEFINE(LIBSMI)
  libsmi=yes],
dnl autoconf documentation says that $? contains the exit value.
dnl reality is that it does not.  We leave this in just in case
dnl autoconf ever comes back to match the documentation.
[ case $? in
  1) AC_MSG_RESULT(no - smiInit failed) ;;
  2) AC_MSG_RESULT(no - header/library version mismatch) ;;
  3) AC_MSG_RESULT(no - can't determine library version) ;;
  4) AC_MSG_RESULT(no - too old) ;;
  *) AC_MSG_RESULT(no) ;;
  esac
  libsmi=no],
[ AC_MSG_RESULT(not when cross-compiling)
  libsmi=no]
)
fi

AC_MSG_CHECKING([whether to enable the possibly-buggy SMB printer])
AC_ARG_ENABLE(smb,
[  --enable-smb            enable possibly-buggy SMB printer [default=yes]
  --disable-smb           disable possibly-buggy SMB printer],,
   enableval=yes)
case "$enableval" in
yes)	AC_MSG_RESULT(yes)
	AC_WARN([The SMB printer may have exploitable buffer overflows!!!])
	AC_DEFINE(TCPDUMP_DO_SMB)
	LOCALSRC="print-smb.c smbutil.c $LOCALSRC"
	;;
*)	AC_MSG_RESULT(no)
	;;
esac

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")
       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 "$with_chroot" ; then
        AC_DEFINE_UNQUOTED(WITH_CHROOT, "$withval")
       AC_MSG_RESULT(to \"$withval\")
else
       AC_MSG_RESULT(no)
fi

AC_MSG_CHECKING([whether to enable ipv6])
AC_ARG_ENABLE(ipv6,
[  --enable-ipv6           enable ipv6 (with ipv4) support
  --disable-ipv6          disable ipv6 support],
[ case "$enableval" in
yes)   AC_MSG_RESULT(yes)
       LOCALSRC="print-ip6.c print-ip6opts.c print-mobility.c print-ripng.c print-icmp6.c print-frag6.c print-rt6.c print-ospf6.c print-dhcp6.c $LOCALSRC"
       AC_DEFINE(INET6)
       ipv6=yes
       ;;
*)
       AC_MSG_RESULT(no)
       ipv6=no
       ;;
  esac ],

  AC_TRY_RUN([ /* AF_INET6 available check */
#include <sys/types.h>
#include <sys/socket.h>
main()
{
 if (socket(AF_INET6, SOCK_STREAM, 0) < 0)
   exit(1);
 else
   exit(0);
}
],
[ AC_MSG_RESULT(yes)
  LOCALSRC="print-ip6.c print-ip6opts.c print-mobility.c print-ripng.c print-icmp6.c print-frag6.c print-rt6.c print-ospf6.c print-dhcp6.c $LOCALSRC"
  AC_DEFINE(INET6)
  ipv6=yes],
[ AC_MSG_RESULT(no)
  ipv6=no],
[ AC_MSG_RESULT(no)
  ipv6=no]
))

ipv6type=unknown
ipv6lib=none
ipv6trylibc=no

if test "$ipv6" = "yes"; then
	AC_MSG_CHECKING([ipv6 stack type])
	for i in inria kame linux-glibc linux-libinet6 toshiba v6d zeta; do
		case $i in
		inria)
			dnl http://www.kame.net/
			AC_EGREP_CPP(yes,
[#include <netinet/in.h>
#ifdef IPV6_INRIA_VERSION
yes
#endif],
				[ipv6type=$i;
				CFLAGS="-DINET6 $CFLAGS"])
			;;
		kame)
			dnl http://www.kame.net/
			AC_EGREP_CPP(yes,
[#include <netinet/in.h>
#ifdef __KAME__
yes
#endif],
				[ipv6type=$i;
				ipv6lib=inet6;
				ipv6libdir=/usr/local/v6/lib;
				ipv6trylibc=yes;
				CFLAGS="-DINET6 $CFLAGS"])
			;;
		linux-glibc)
			dnl http://www.v6.linux.or.jp/
			AC_EGREP_CPP(yes,
[#include <features.h>
#if defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1
yes
#endif],
				[ipv6type=$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 $CFLAGS"
			fi
			;;
		toshiba)
			AC_EGREP_CPP(yes,
[#include <sys/param.h>
#ifdef _TOSHIBA_INET6
yes
#endif],
				[ipv6type=$i;
				ipv6lib=inet6;
				ipv6libdir=/usr/local/v6/lib;
				CFLAGS="-DINET6 $CFLAGS"])
			;;
		v6d)
			AC_EGREP_CPP(yes,
[#include </usr/local/v6/include/sys/v6config.h>
#ifdef __V6D__
yes
#endif],
				[ipv6type=$i;
				ipv6lib=v6;
				ipv6libdir=/usr/local/v6/lib;
				CFLAGS="-I/usr/local/v6/include $CFLAGS"])
			;;
		zeta)
			AC_EGREP_CPP(yes,
[#include <sys/param.h>
#ifdef _ZETA_MINAMI_INET6
yes
#endif],
				[ipv6type=$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 <netdb.h> #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 <sys/types.h>
#include <netdb.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>

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=yes)])
	if test "$td_cv_buggygetaddrinfo" = no; then
		AC_MSG_RESULT(good)
	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(getaddrinfo 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)
fi

dnl
dnl check sizeof basic types.
dnl They're very likely to be wrong for cross-compiling.
AC_CHECK_SIZEOF(char, 1)
AC_CHECK_SIZEOF(short, 2)
AC_CHECK_SIZEOF(int, 4)
AC_CHECK_SIZEOF(long, 4)
AC_CHECK_SIZEOF(long long, 8)

dnl
dnl Checks for u_intXX_t
dnl AC_CHECK_BITTYPES(ac_cv_bittypes)
dnl if test "$ac_cv_bittypes" = no; then
dnl 	missing_includes=yes
dnl fi

dnl
dnl Checks for addrinfo structure
AC_STRUCT_ADDRINFO(ac_cv_addrinfo)
if test "$ac_cv_addrinfo" = no; then
	missing_includes=yes
fi

dnl
dnl Checks for NI_MAXSERV
AC_NI_MAXSERV(ac_cv_maxserv)
if test "$ac_cv_maxserv" = no; then
	missing_includes=yes
fi

dnl
dnl Checks for NI_NAMEREQD
AC_NI_NAMEREQD(ac_cv_namereqd)
if test "$ac_cv_namereqd" = no; then
	missing_includes=yes
fi

dnl
dnl Checks for sockaddr_storage structure
AC_STRUCT_SA_STORAGE(ac_cv_sa_storage)
if test "$ac_cv_sa_storage" = no; then
	missing_includes=yes
fi

dnl
dnl Checks for IN[6]ADDRSZ
AC_CHECK_ADDRSZ(ac_cv_addrsz)
if test "$ac_cv_addrsz" = no; then
	missing_includes=yes
fi

dnl
dnl Checks for RES_USE_INET6
AC_CHECK_RES_USE_INET6(ac_cv_res_inet6)
if test "$ac_cv_res_inet6" = no; then
	missing_includes=yes
fi

dnl
dnl Checks for res_state_ext structure
AC_STRUCT_RES_STATE_EXT(ac_cv_res_state_ext)
if test "$ac_cv_res_state_ext" = no; then
	missing_includes=yes
fi

dnl
dnl Checks if res_state structure has nsort member.
AC_STRUCT_RES_STATE(ac_cv_res_state)


AC_REPLACE_FUNCS(vfprintf strcasecmp strlcat strlcpy strdup strsep)
AC_CHECK_FUNCS(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))

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))

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 <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>], [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 <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>], [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 <sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>], [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 <netinet/if_ether.h>.
# Some might have it, but declare it in <netinet/ether.h>
# (And some might have it but document it as something declared in
# <netinet/ethernet.h>, although <netinet/if_ether.h> 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 <netdb.h>
		#include <sys/types.h>
		#include <sys/param.h>
		#include <sys/socket.h>

		int
		main(int argc, char **argv)
		{
			u_char ea[6] = { 0xff, 0xff, 0xff, 0xff, 0xff };
			char name[MAXHOSTNAMELEN];

			ether_ntohost(name, (struct ether_addr *)ea);
			exit(0);
		}
	], [ac_cv_buggy_ether_ntohost=no],
	   [ac_cv_buggy_ether_ntohost=yes],
	   [ac_cv_buggy_ether_ntohost="not while cross-compiling"])])
    if test "$ac_cv_buggy_ether_ntohost" = "no"; then
	AC_DEFINE(USE_ETHER_NTOHOST)
    fi
])
if test "$ac_cv_func_ether_ntohost" = yes -a \
    "$ac_cv_buggy_ether_ntohost" = "no"; then
	#
	# OK, we have ether_ntohost().  Do we have <netinet/if_ether.h>?
	#
	if test "$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 <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
struct mbuf;
struct rtentry;
#include <net/if.h>
#include <netinet/if_ether.h>
		    ])
	fi
	#
	# Did that succeed?
	#
	if test "$ac_cv_have_decl_ether_ntohost" != yes; then
		#
		# No, how about <netinet/ether.h>, as on Linux?
		#
		AC_CHECK_HEADERS(netinet/ether.h)
		if test "$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 <netinet/ether.h>
			    ])
		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 <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
struct mbuf;
struct rtentry;
#include <net/if.h>
#include <netinet/if_ether.h>
		    ])
		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

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

AC_CHECK_FUNCS(pcap_findalldevs pcap_dump_flush pcap_lib_version)
if test $ac_cv_func_pcap_findalldevs = "yes" ; then
dnl Check for Mac OS X, which may ship pcap.h from 0.6 but libpcap may
dnl be 0.8; this means that lib has pcap_findalldevs but header doesn't
dnl have pcap_if_t.
    savedcflags="$CFLAGS"
    CFLAGS="$CFLAGS $V_INCLS"
    AC_CHECK_TYPES(pcap_if_t, , , [#include <pcap.h>])
    CFLAGS="$savedcflags"
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)
    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)
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)
	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
case "$host_os" in

aix*)
	dnl Workaround to enable certain features
	AC_DEFINE(_SUN)
	;;

irix*)
	V_GROUP=sys
	;;

osf*)
	V_GROUP=system
	;;

solaris*)
	V_GROUP=sys
	;;
esac

if test -f /dev/bpf0 ; then
	V_GROUP=bpf
fi

AC_CHECK_HEADERS(sys/bitypes.h)

AC_CHECK_TYPE([int8_t], ,
	[AC_DEFINE([int8_t], [signed char],
	[Define to `signed char' if int8_t not defined.])])
AC_CHECK_TYPE([u_int8_t], ,
	[AC_DEFINE([u_int8_t], [unsigned char],
	[Define to `unsigned char' if u_int8_t not defined.])],
	[AC_INCLUDES_DEFAULT
#ifdef HAVE_SYS_BITYPES_H
#include <sys/bitypes.h>
#endif])
AC_CHECK_TYPE([int16_t], ,
	[AC_DEFINE([int16_t], [short],
	[Define to `short' if int16_t not defined.])])
AC_CHECK_TYPE([u_int16_t], ,
	[AC_DEFINE([u_int16_t], [unsigned short],
	[Define to `unsigned short' if u_int16_t not defined.])],
	[AC_INCLUDES_DEFAULT
#ifdef HAVE_SYS_BITYPES_H
#include <sys/bitypes.h>
#endif])
AC_CHECK_TYPE([int32_t], ,
	[AC_DEFINE([int32_t], [int],
	[Define to `int' if int32_t not defined.])])
AC_CHECK_TYPE([u_int32_t], ,
	[AC_DEFINE([u_int32_t], [unsigned int],
	[Define to `unsigned int' if u_int32_t not defined.])],
	[AC_INCLUDES_DEFAULT
#ifdef HAVE_SYS_BITYPES_H
#include <sys/bitypes.h>
#endif])
AC_CHECK_TYPE([int64_t], ,
	[AC_DEFINE([int64_t], [long long],
	[Define to `long long' if int64_t not defined.])])
AC_CHECK_TYPE([u_int64_t], ,
	[AC_DEFINE([u_int64_t], [unsigned long long],
	[Define to `unsigned long long' if u_int64_t not defined.])],
	[AC_INCLUDES_DEFAULT
#ifdef HAVE_SYS_BITYPES_H
#include <sys/bitypes.h>
#endif])

#
# We can't just check for <inttypes.h> - some systems have one that
# doesn't define all the PRI[doxu]64 macros.
#
AC_CHECK_HEADERS(inttypes.h,
  [
    #
    # OK, we have inttypes.h, but does it define those macros?
    #
    AC_MSG_CHECKING([[whether inttypes.h defines the PRI[doxu]64 macros]])
    AC_COMPILE_IFELSE(
      [
	AC_LANG_SOURCE(
	  [[
	    #include <inttypes.h>
	    #include <stdio.h>
	    #include <sys/types.h>
	    #ifdef HAVE_SYS_BITYPES_H
	    #include <sys/bitypes.h>
	    #endif

	    main()
	    {
	      printf("%" PRId64 "\n", (u_int64_t)1);
	      printf("%" PRIo64 "\n", (u_int64_t)1);
	      printf("%" PRIx64 "\n", (u_int64_t)1);
	      printf("%" PRIu64 "\n", (u_int64_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

AC_LBL_DEVEL(V_CCOPT)

AC_LBL_SOCKADDR_SA_LEN

AC_LBL_UNALIGNED_ACCESS

AC_VAR_H_ERRNO

AC_ARG_WITH(crypto, [  --without-crypto        disable crypto support],
	[], [
AC_MSG_CHECKING(for SSLeay)
ac_cv_ssleay_path=no
incdir=no

#
# If Xprefix is set in the environment, use that value.
# XXX - this should arguably be done by having --with-crypto take an
# optional argument, and have that argument be used to set Xprefix
# if present.
#
if test -z "$Xprefix"; then
	Xprefix=`eval echo $prefix`
fi

for dir in $Xprefix /usr/${host_alias} /usr /usr/local /usr/local/ssl /usr/pkg; do
	#
	# XXX - is there a better way to check if a given library is
	# in a given directory than checking each of the possible
	# shared library suffixes?
	#
	# Are there any other suffixes we need to look for?  Do we have to
	# worry about ".so.{version}"?
	#
	# Or should we just look for "libcrypto.*"?
	#
	if test -d $dir/lib -a \( -f $dir/lib/libcrypto.a -o \
			          -f $dir/lib/libcrypto.so -o \
			          -f $dir/lib/libcrypto.sl -o \
				  -f $dir/lib/libcrypto.dylib \); then
		ac_cv_ssleay_path=$dir
	fi
	if test -d $dir/include/openssl -a -f $dir/include/openssl/des.h; then
		incdir="-I$dir/include"
	fi
	if test "$ac_cv_ssleay_path" != "no" -a "$incdir" != "no"; then
		break;
	else
		ac_cv_ssleay_path=no
		incdir=no
	fi
done
AC_MSG_RESULT($ac_cv_ssleay_path)
if test "$ac_cv_ssleay_path" != no; then
	V_INCLS="$V_INCLS $incdir"
	LDFLAGS="-L$dir/lib $LDFLAGS"
	if test -f $ac_cv_ssleay_path/lib/libRSAglue.a; then
		LIBS="$LIBS -lRSAglue"
	fi
	if test -f $ac_cv_ssleay_path/lib/librsaref.a; then
		LIBS="$LIBS -lrsaref"
	fi
	AC_CHECK_LIB(crypto, DES_cbc_encrypt)

	CPPFLAGS="$CPPFLAGS $V_INCLS"
	AC_CHECK_HEADERS(openssl/evp.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_PROG_INSTALL

AC_CONFIG_HEADER(config.h)

AC_OUTPUT_COMMANDS([if test -f .devel; then
	echo timestamp > stamp-h
	cat Makefile-devel-adds >> Makefile
	make depend
fi])
AC_OUTPUT(Makefile)
exit 0
OpenPOWER on IntegriCloud