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Generate code to check for LLC SAP values on Linux cooked captures.
[libpcap] / configure.in
1 dnl @(#) $Header: /tcpdump/master/libpcap/configure.in,v 1.87 2000-12-21 10:29:22 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 AC_REVISION($Revision: 1.87 $)
10 AC_INIT(pcap.c)
11
12 AC_CANONICAL_SYSTEM
13
14 AC_LBL_C_INIT(V_CCOPT, V_INCLS)
15 AC_C_INLINE
16 AC_C___ATTRIBUTE__
17
18 AC_LBL_CHECK_TYPE(u_int8_t, u_char)
19 AC_LBL_CHECK_TYPE(u_int16_t, u_short)
20 AC_LBL_CHECK_TYPE(u_int32_t, u_int)
21
22 dnl
23 dnl libpcap doesn't itself use <sys/ioccom.h>; however, the test program
24 dnl in "AC_LBL_FIXINCLUDES" in "aclocal.m4" uses it, so we have to
25 dnl test for it and set "HAVE_SYS_IOCCOM_H" if we have it, otherwise
26 dnl "AC_LBL_FIXINCLUDES" won't work on some platforms such as Solaris.
27 dnl
28 AC_CHECK_HEADERS(sys/ioccom.h sys/sockio.h ifaddrs.h)
29
30 AC_LBL_FIXINCLUDES
31
32 AC_CHECK_FUNCS(ether_hostton strerror freeifaddrs strlcpy)
33
34 dnl to pacify those who hate protochain insn
35 AC_MSG_CHECKING(if --disable-protochain option is specified)
36 AC_ARG_ENABLE(protochain, [ --disable-protochain disable \"protochain\" insn])
37 case "x$enable_protochain" in
38 xyes) enable_protochain=enabled ;;
39 xno) enable_protochain=disabled ;;
40 x) enable_protochain=enabled ;;
41 esac
42
43 if test "$enable_protochain" = "disabled"; then
44 AC_DEFINE(NO_PROTOCHAIN,1,[do not use protochain])
45 fi
46 AC_MSG_RESULT(${enable_protochain})
47
48 dnl
49 dnl Not all versions of test support -c (character special) but it's a
50 dnl better way of testing since the device might be protected. So we
51 dnl check in our normal order using -r and then check the for the /dev
52 dnl guys again using -c.
53 dnl
54 dnl XXX This could be done for cross-compiling, but for now it's not.
55 dnl
56 if test -z "$with_pcap" && test "$cross_compiling" = yes; then
57 AC_MSG_ERROR(pcap type not determined when cross-compiling; use --with-pcap=...)
58 fi
59 AC_ARG_WITH(pcap, [ --with-pcap=TYPE use packet capture TYPE])
60 AC_MSG_CHECKING(packet capture type)
61 if test ! -z "$with_pcap" ; then
62 V_PCAP="$withval"
63 elif test -r /dev/bpf0 ; then
64 V_PCAP=bpf
65 elif test -r /usr/include/net/pfilt.h ; then
66 V_PCAP=pf
67 elif test -r /dev/enet ; then
68 V_PCAP=enet
69 elif test -r /dev/nit ; then
70 V_PCAP=snit
71 elif test -r /usr/include/sys/net/nit.h ; then
72 V_PCAP=nit
73 elif test -r /usr/include/net/raw.h ; then
74 V_PCAP=snoop
75 elif test -r /usr/include/sys/dlpi.h ; then
76 V_PCAP=dlpi
77 elif test -r /usr/include/linux/socket.h ; then
78 V_PCAP=linux
79 elif test -c /dev/bpf0 ; then # check again in case not readable
80 V_PCAP=bpf
81 elif test -c /dev/enet ; then # check again in case not readable
82 V_PCAP=enet
83 elif test -c /dev/nit ; then # check again in case not readable
84 V_PCAP=snit
85 else
86 V_PCAP=null
87 fi
88 AC_MSG_RESULT($V_PCAP)
89
90 AC_MSG_CHECKING(if --enable-ipv6 option is specified)
91 AC_ARG_ENABLE(ipv6, [ --enable-ipv6 build IPv6-capable version])
92 if test "$enable_ipv6" = "yes"; then
93 AC_DEFINE(INET6,1,[IPv6])
94 fi
95 AC_MSG_RESULT(${enable_ipv6-no})
96
97 case "$V_PCAP" in
98
99 dlpi)
100 AC_CHECK_HEADERS(sys/bufmod.h sys/dlpi_ext.h)
101 AC_MSG_CHECKING(for /dev/dlpi device)
102 if test -c /dev/dlpi ; then
103 AC_MSG_RESULT(yes)
104 AC_DEFINE(HAVE_DEV_DLPI, 1, [define if you have a /dev/dlpi])
105 else
106 AC_MSG_RESULT(no)
107 dir="/dev/dlpi"
108 AC_MSG_CHECKING(for $dir directory)
109 if test -d $dir ; then
110 AC_MSG_RESULT(yes)
111 AC_DEFINE_UNQUOTED(PCAP_DEV_PREFIX, "$dir", [/dev/dlpi directory])
112 else
113 AC_MSG_RESULT(no)
114 fi
115 fi
116 ;;
117
118 linux)
119 AC_CHECK_HEADERS(netpacket/packet.h)
120 AC_MSG_CHECKING(Linux kernel version)
121 if test "$cross_compiling" = yes; then
122 AC_CACHE_VAL(ac_cv_linux_vers,
123 ac_cv_linux_vers=unknown)
124 else
125 AC_CACHE_VAL(ac_cv_linux_vers,
126 ac_cv_linux_vers=`uname -r 2>&1 | \
127 sed -n -e '$s/.* //' -e '$s/\..*//p'`)
128 fi
129 AC_MSG_RESULT($ac_cv_linux_vers)
130 if test $ac_cv_linux_vers = unknown ; then
131 AC_MSG_ERROR(cannot determine linux version when cross-compiling)
132 fi
133 if test $ac_cv_linux_vers -lt 2 ; then
134 AC_MSG_ERROR(version 2 or higher required; see the INSTALL doc for more info)
135 fi
136 ;;
137
138 null)
139 AC_MSG_WARN(cannot determine packet capture interface)
140 AC_MSG_WARN((see the INSTALL doc for more info))
141 ;;
142
143 esac
144
145 AC_LBL_LEX_AND_YACC(V_LEX, V_YACC, pcap_)
146 if test "$V_LEX" = lex ; then
147 # Some versions of lex can't handle the definitions section of scanner.l .
148 # Try lexing it and complain if it can't deal.
149 AC_CACHE_CHECK([for capable lex], tcpdump_cv_capable_lex,
150 if lex -t scanner.l > /dev/null 2>&1; then
151 tcpdump_cv_capable_lex=yes
152 else
153 tcpdump_cv_capable_lex=insufficient
154 fi)
155 if test $tcpdump_cv_capable_lex = insufficient ; then
156 AC_MSG_ERROR([Your operating system's lex is insufficient to compile
157 libpcap. flex is a lex replacement that has many advantages, including
158 being able to compile libpcap. For more information, see
159 http://www.gnu.org/software/flex/flex.html .])
160 fi
161 fi
162
163 case "$target_os" in
164
165 aix*)
166 dnl Workaround to enable certain features
167 AC_DEFINE(_SUN,1,[define on AIX to get certain functions])
168 ;;
169
170 hpux9*)
171 AC_DEFINE(HAVE_HPUX9,1,[on HP-UX 9.x])
172 ;;
173
174 hpux10.0*)
175 ;;
176
177 hpux10.1*)
178 ;;
179
180 hpux*)
181 dnl HPUX 10.20 and above is similar to HPUX 9...
182 AC_DEFINE(HAVE_HPUX10_20,1,[on HP-UX 10.20])
183 ;;
184
185 sinix*)
186 AC_MSG_CHECKING(if SINIX compiler defines sinix)
187 AC_CACHE_VAL(ac_cv_cc_sinix_defined,
188 AC_TRY_COMPILE(
189 [],
190 [int i = sinix;],
191 ac_cv_cc_sinix_defined=yes,
192 ac_cv_cc_sinix_defined=no))
193 AC_MSG_RESULT($ac_cv_cc_sinix_defined)
194 if test $ac_cv_cc_sinix_defined = no ; then
195 AC_DEFINE(sinix,1,[on sinix])
196 fi
197 ;;
198
199 solaris*)
200 AC_DEFINE(HAVE_SOLARIS,1,[On solaris])
201 ;;
202 esac
203
204 AC_PROG_RANLIB
205
206 AC_LBL_DEVEL(V_CCOPT)
207
208 AC_LBL_SOCKADDR_SA_LEN
209
210 AC_LBL_HP_PPA_INFO_T_DL_MODULE_ID_1
211
212 AC_LBL_UNALIGNED_ACCESS
213
214 rm -f net
215 ln -s ${srcdir}/bpf/net net
216
217 AC_SUBST(V_CCOPT)
218 AC_SUBST(V_INCLS)
219 AC_SUBST(V_LEX)
220 AC_SUBST(V_PCAP)
221 AC_SUBST(V_RANLIB)
222 AC_SUBST(V_YACC)
223
224 AC_PROG_INSTALL
225
226 AC_CONFIG_HEADER(config.h)
227
228 AC_OUTPUT(Makefile)
229
230 if test -f .devel ; then
231 make depend
232 fi
233 exit 0