The Tcpdump Group git mirrors - tcpdump/blobdiff

#

# See

#

# See

#

-# http://ftp.gnu.org/gnu/config/README

+# https://ftp.gnu.org/gnu/config/README

#

# for the URLs to use to fetch new versions of config.guess and

# config.sub.

#

# for the URLs to use to fetch new versions of config.guess and

# config.sub.

#

-AC_PREREQ(2.64)

-AC_INIT(tcpdump, m4_esyscmd_s([cat VERSION]))

+AC_PREREQ([2.69])

+AC_INIT([tcpdump],[m4_esyscmd_s(cat VERSION)])

AC_CONFIG_SRCDIR(tcpdump.c)

AC_CANONICAL_HOST

AC_LBL_C_INIT_BEFORE_CC(V_INCLS)

AC_CONFIG_SRCDIR(tcpdump.c)

AC_CANONICAL_HOST

AC_LBL_C_INIT_BEFORE_CC(V_INCLS)

+#

+# Try to enable as many C99 features as we can.

+# At minimum, we want C++/C99-style // comments.

+#

AC_PROG_CC_C99

+if test "$ac_cv_prog_cc_c99" = "no"; then

+ AC_MSG_WARN([The C compiler does not support C99; there may be compiler errors])

+fi

AC_LBL_C_INIT(V_CCOPT, V_INCLS)

AC_LBL_C_INLINE

AC_CHECK_HEADERS(fcntl.h rpc/rpc.h rpc/rpcent.h net/if.h)

AC_LBL_C_INIT(V_CCOPT, V_INCLS)

AC_LBL_C_INLINE

AC_CHECK_HEADERS(fcntl.h rpc/rpc.h rpc/rpcent.h net/if.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

- AC_CHECK_HEADERS(net/if_pflog.h, , , [#include <sys/types.h>

- #include <sys/socket.h>

- #include <net/if.h>

- #include <net/pfvar.h>])

- if test "$ac_cv_header_net_if_pflog_h" = yes; then

- LOCALSRC="print-pflog.c $LOCALSRC"

- fi

-fi

case "$host_os" in

darwin*)

AC_ARG_ENABLE(universal,

case "$host_os" in

darwin*)

AC_ARG_ENABLE(universal,

- AC_HELP_STRING([--disable-universal],[don't build universal on macOS]))

+ AS_HELP_STRING([--disable-universal],[don't build universal on macOS]))

if test "$enable_universal" != "no"; then

case "$host_os" in

if test "$enable_universal" != "no"; then

case "$host_os" in

esac

-AC_ARG_WITH(smi,

-[ --with-smi link with libsmi (allows to load MIBs on the fly to decode SNMP packets. [default=yes]

- --without-smi don't link with libsmi],,

- with_smi=yes)

+AC_ARG_WITH([smi],

+ [AS_HELP_STRING([--with-smi],

+ [link with libsmi (allows to load MIBs on the fly to decode SNMP packets) [default=yes, if available]])],

+ [],

+ [with_smi=yes])

if test "x$with_smi" != "xno" ; then

AC_CHECK_HEADER(smi.h,

if test "x$with_smi" != "xno" ; then

AC_CHECK_HEADER(smi.h,

AC_MSG_CHECKING([whether to enable libsmi])

savedlibs="$LIBS"

LIBS="-lsmi $LIBS"

AC_MSG_CHECKING([whether to enable libsmi])

savedlibs="$LIBS"

LIBS="-lsmi $LIBS"

- AC_TRY_RUN(

- [

+ AC_RUN_IFELSE([AC_LANG_SOURCE([[

/* libsmi available check */

+#include <stdio.h>

+#include <stdlib.h>

+#include <string.h>

#include <smi.h>

-main()

+int main()

{

int current, revision, age, n;

const int required = 2;

{

int current, revision, age, n;

const int required = 2;

exit(4);

exit(0);

}

exit(4);

exit(0);

}

+ ]])

],

[

AC_MSG_RESULT(yes)

],

[

AC_MSG_RESULT(yes)

])

fi

])

fi

+AC_MSG_CHECKING([whether to enable the instrument functions code])

+AC_ARG_ENABLE([instrument-functions],

+ [AS_HELP_STRING([--enable-instrument-functions],

+ [enable instrument functions code [default=no]])],

+ [],

+ [enableval=no])

+case "$enableval" in

+yes) AC_MSG_RESULT(yes)

+ AC_CHECK_LIB([bfd], [bfd_init],

+ [true],

+ [AC_MSG_ERROR(

+ [--enable-instrument-functions was given, but test for library libbfd failed. Please install the 'binutils-dev' package.])],

+ [])

+ AC_DEFINE(ENABLE_INSTRUMENT_FUNCTIONS, 1,

+ [define if you want to build the instrument functions code])

+ LOCALSRC="$LOCALSRC instrument-functions.c"

+ # Add '-finstrument-functions' instrumentation option to generate

+ # instrumentation calls for entry and exit to functions.

+ # Try to avoid Address Space Layout Randomization (ALSR).

+ CFLAGS="$CFLAGS -O0 -ggdb -finstrument-functions -fno-stack-protector -fno-pic"

+ LDFLAGS="$LDFLAGS -O0 -ggdb -fno-stack-protector -no-pie"

+ LIBS="$LIBS -lbfd"

+ ;;

+*) AC_MSG_RESULT(no)

+ ;;

+esac

+

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)

+AC_ARG_ENABLE([smb],

+ [AS_HELP_STRING([--enable-smb],

+ [enable possibly-buggy SMB printer [default=no]])],

+ [],

+ [enableval=no])

case "$enableval" in

yes) AC_MSG_RESULT(yes)

case "$enableval" in

yes) AC_MSG_RESULT(yes)

- AC_WARN([The SMB printer may have exploitable buffer overflows!!!])

AC_DEFINE(ENABLE_SMB, 1,

[define if you want to build the possibly-buggy SMB printer])

LOCALSRC="print-smb.c smbutil.c $LOCALSRC"

AC_DEFINE(ENABLE_SMB, 1,

[define if you want to build the possibly-buggy SMB printer])

LOCALSRC="print-smb.c smbutil.c $LOCALSRC"

# XXX - do we need to check for all of them, or are there some that, if

# present, imply others are present?

#

# XXX - do we need to check for all of them, or are there some that, if

# present, imply others are present?

#

-if test ! -z "$with_sandbox-capsicum" && test "$with_sandbox-capsicum" != "no" ; then

- AC_CHECK_FUNCS(cap_enter cap_rights_limit cap_ioctls_limit openat,

- ac_lbl_capsicum_function_seen=yes,

- ac_lbl_capsicum_function_not_seen=yes)

+if test -z "$with_sandbox_capsicum" || test "$with_sandbox_capsicum" != "no" ; then

+ #

+ # First, make sure we have the required header.

+ #

+ AC_CHECK_HEADER(sys/capsicum.h,

+ [

+ #

+ # We do; now make sure we have the required functions.

+ #

+ AC_CHECK_FUNCS(cap_enter cap_rights_limit cap_ioctls_limit openat,

+ ac_lbl_capsicum_function_seen=yes,

+ ac_lbl_capsicum_function_not_seen=yes)

+ ])

AC_CHECK_LIB(casper, cap_init, LIBS="$LIBS -lcasper")

AC_CHECK_LIB(cap_dns, cap_gethostbyaddr, LIBS="$LIBS -lcap_dns")

fi

AC_CHECK_LIB(casper, cap_init, LIBS="$LIBS -lcasper")

AC_CHECK_LIB(cap_dns, cap_gethostbyaddr, LIBS="$LIBS -lcap_dns")

fi

[

AC_LANG_SOURCE(

[[

[

AC_LANG_SOURCE(

[[

+#include <string.h>

/* AF_INET6 available check */

#include <sys/types.h>

#ifdef _WIN32

/* AF_INET6 available check */

#include <sys/types.h>

#ifdef _WIN32

fi

-AC_SEARCH_LIBS(dnet_htoa, dnet,

-[

- AC_DEFINE(HAVE_DNET_HTOA, 1,

- [define if you have the dnet_htoa function])

- #

- # OK, we have dnet_htoa(). Do we have netdnet/dnetdb.h?

- #

- AC_CHECK_HEADERS(netdnet/dnetdb.h)

- if test "$ac_cv_header_netdnet_dnetdb_h" = "yes"; then

- #

- # Yes. Does it declare dnet_htoa()?

- #

- AC_CHECK_DECL(dnet_htoa,

- [

- # Yes.

- AC_DEFINE(NETDNET_DNETDB_H_DECLARES_DNET_HTOA,,

- [Define to 1 if netenet/dnetdb.h declares `dnet_htoa'])

- ],,

- [

-AC_INCLUDES_DEFAULT

-#include <netdnet/dnetdb.h>

- ])

- fi

-

- #

- # Do we have netdnet/dn.h?

- #

- AC_CHECK_HEADERS(netdnet/dn.h)

- if test "$ac_cv_header_netdnet_dn_h" = "yes"; then

- #

- # Yes. Does it declare struct dn_naddr?

- #

- AC_CHECK_TYPES(struct dn_naddr,,,

- [

-#include <netdnet/dn.h>

- ])

- fi

-])

-

AC_REPLACE_FUNCS(strlcat strlcpy strdup strsep getservent getopt_long)

-AC_CHECK_FUNCS(fork vfork strftime)

+AC_CHECK_FUNCS(fork vfork)

AC_CHECK_FUNCS(setlinebuf)

-needsnprintf=no

-AC_CHECK_FUNCS(vsnprintf snprintf,,

- [needsnprintf=yes])

-if test $needsnprintf = yes; then

- AC_LIBOBJ(snprintf)

-fi

+#

+# Make sure we have vsnprintf() and snprintf(); we require them.

+#

+AC_CHECK_FUNC(vsnprintf,,

+ AC_MSG_ERROR([vsnprintf() is required but wasn't found]))

+AC_CHECK_FUNC(snprintf,,

+ AC_MSG_ERROR([snprintf() is required but wasn't found]))

+

+#

+# Define HAVE_NO_PRINTF_Z to make it possible to disable test cases that

+# depend on %zu.

+#

+AC_MSG_CHECKING([whether printf(3) supports the z length modifier])

+AC_RUN_IFELSE(

+ [

+ AC_LANG_SOURCE([[

+#include <stdio.h>

+#include <string.h>

+

+int main()

+{

+ char buf[100];

+ snprintf(buf, sizeof(buf), "%zu", sizeof(buf));

+ return strncmp(buf, "100", sizeof(buf)) ? 1 : 0;

+}

+ ]])

+ ],

+ [

+ AC_MSG_RESULT(yes)

+ ],

+ [

+ AC_MSG_RESULT(no)

+ AC_DEFINE(HAVE_NO_PRINTF_Z, 1,

+ [Define to 1 if printf(3) does not support the z length modifier.])

+ ],

+ [

+ AC_MSG_RESULT(not while cross-compiling)

+ ]

+)

AC_CHECK_LIB(rpc, main) dnl It's unclear why we might need -lrpc

#

AC_CHECK_FUNCS(ether_ntohost, [

AC_CACHE_CHECK(for buggy ether_ntohost, ac_cv_buggy_ether_ntohost, [

#

AC_CHECK_FUNCS(ether_ntohost, [

AC_CACHE_CHECK(for buggy ether_ntohost, ac_cv_buggy_ether_ntohost, [

- AC_TRY_RUN([

+ AC_RUN_IFELSE([AC_LANG_SOURCE([[

#include <netdb.h>

+ #include <netinet/ether.h>

+ #include <stdlib.h>

#include <sys/types.h>

#include <sys/param.h>

#include <sys/socket.h>

#include <sys/types.h>

#include <sys/param.h>

#include <sys/socket.h>

ether_ntohost(name, (struct ether_addr *)ea);

exit(0);

}

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"])])

], [ac_cv_buggy_ether_ntohost=no],

[ac_cv_buggy_ether_ntohost=yes],

[ac_cv_buggy_ether_ntohost="not while cross-compiling"])])

AC_CHECK_FUNCS(pcap_dump_flush pcap_lib_version)

if test $ac_cv_func_pcap_lib_version = "no" ; then

AC_MSG_CHECKING(whether pcap_version is defined by libpcap)

AC_CHECK_FUNCS(pcap_dump_flush pcap_lib_version)

if test $ac_cv_func_pcap_lib_version = "no" ; then

AC_MSG_CHECKING(whether pcap_version is defined by libpcap)

- AC_TRY_LINK([],

- [

+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[

extern char pcap_version[];

return (int)pcap_version;

extern char pcap_version[];

return (int)pcap_version;

+ ]])

],

- ac_lbl_cv_pcap_version_defined=yes,

- ac_lbl_cv_pcap_version_defined=no)

+ [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, 1, [define if libpcap has pcap_version])

if test "$ac_lbl_cv_pcap_version_defined" = yes ; then

AC_MSG_RESULT(yes)

AC_DEFINE(HAVE_PCAP_VERSION, 1, [define if libpcap has pcap_version])

# filter expression parser debug flag; can we directly set the

# flag?

AC_MSG_CHECKING(whether pcap_debug is defined by libpcap)

# filter expression parser debug flag; can we directly set the

# flag?

AC_MSG_CHECKING(whether pcap_debug is defined by libpcap)

- AC_TRY_LINK([],

- [

+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[

extern int pcap_debug;

return pcap_debug;

extern int pcap_debug;

return pcap_debug;

+ ]])

],

- ac_lbl_cv_pcap_debug_defined=yes,

- ac_lbl_cv_pcap_debug_defined=no)

+ [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, 1, [define if libpcap has pcap_debug])

if test "$ac_lbl_cv_pcap_debug_defined" = yes ; then

AC_MSG_RESULT(yes)

AC_DEFINE(HAVE_PCAP_DEBUG, 1, [define if libpcap has pcap_debug])

# OK, what about "yydebug"?

#

AC_MSG_CHECKING(whether yydebug is defined by libpcap)

# OK, what about "yydebug"?

#

AC_MSG_CHECKING(whether yydebug is defined by libpcap)

- AC_TRY_LINK([],

- [

+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[

extern int yydebug;

return yydebug;

extern int yydebug;

return yydebug;

+ ]])

],

- ac_lbl_cv_yydebug_defined=yes,

- ac_lbl_cv_yydebug_defined=no)

+ [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, 1, [define if libpcap has yydebug])

if test "$ac_lbl_cv_yydebug_defined" = yes ; then

AC_MSG_RESULT(yes)

AC_DEFINE(HAVE_YYDEBUG, 1, [define if libpcap has yydebug])

# EVP_CIPHER_CTX, as EVP_CIPHER_CTX may be

# opaque; otherwise, we allocate it ourselves.

#

# EVP_CIPHER_CTX, as EVP_CIPHER_CTX may be

# opaque; otherwise, we allocate it ourselves.

#

- # 2) do we have EVP_CipherInit_ex()?

+ # 2) do we have EVP_DecryptInit_ex()?

# If so, we use it, because we need to be

# able to make two "initialize the cipher"

# calls, one with the cipher and key, and

# one with the IV, and, as of OpenSSL 1.1,

# If so, we use it, because we need to be

# able to make two "initialize the cipher"

# calls, one with the cipher and key, and

# one with the IV, and, as of OpenSSL 1.1,

- # You Can't Do That with EVP_CipherInit(),

- # because a call to EVP_CipherInit() will

+ # You Can't Do That with EVP_DecryptInit(),

+ # because a call to EVP_DecryptInit() will

# unconditionally clear the context, and

# if you don't supply a cipher, it'll

# clear the cipher, rendering the context

# unusable and causing a crash.

#

# unconditionally clear the context, and

# if you don't supply a cipher, it'll

# clear the cipher, rendering the context

# unusable and causing a crash.

#

- AC_CHECK_FUNCS(EVP_CIPHER_CTX_new EVP_CipherInit_ex)

+ AC_CHECK_FUNCS(EVP_CIPHER_CTX_new EVP_DecryptInit_ex)

fi

])

fi

])

fi

AC_PROG_INSTALL

-AC_CONFIG_HEADER(config.h)

+AC_CONFIG_HEADERS([config.h])

-AC_OUTPUT_COMMANDS([if test -f .devel; then

+AC_CONFIG_COMMANDS([.devel],[[if test -f .devel; then

echo timestamp > stamp-h

- cat Makefile-devel-adds >> Makefile

- make depend

-fi])

-AC_OUTPUT(Makefile tcpdump.1)

+ cat $srcdir/Makefile-devel-adds >> Makefile

+ make depend || exit 1

+fi]])

+AC_CONFIG_FILES([Makefile tcpdump.1])

+AC_OUTPUT

exit 0