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authorYang Tse <yangsita@gmail.com>2010-12-15 02:08:46 +0100
committerYang Tse <yangsita@gmail.com>2010-12-15 02:22:04 +0100
commit623f3cb5316dcbe5f0419efae772995643181f3a (patch)
tree2855f1e05398507eb0458f634e1345e5ecd02062 /m4
parentb2dafb6974da4f3b80dda3bd343989157d8c36a0 (diff)
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configure: inet_net_pton function check adjustments
Define HAVE_INET_NET_PTON only when system's inet_net_pton function is IPv6 capable and is not affected by the WLB-2008080064 advisory. HAVE_INET_NET_PTON_IPV6 is no longer defined nor used.
Diffstat (limited to 'm4')
-rw-r--r--m4/cares-functions.m4231
1 files changed, 228 insertions, 3 deletions
diff --git a/m4/cares-functions.m4 b/m4/cares-functions.m4
index f847788..28fb1e5 100644
--- a/m4/cares-functions.m4
+++ b/m4/cares-functions.m4
@@ -1,7 +1,6 @@
#***************************************************************************
-# $Id$
#
-# Copyright (C) 2008 - 2009 by Daniel Stenberg et al
+# Copyright (C) 2008 - 2010 by Daniel Stenberg et al
#
# Permission to use, copy, modify, and distribute this software and its
# documentation for any purpose and without fee is hereby granted, provided
@@ -16,7 +15,7 @@
#***************************************************************************
# File version for 'aclocal' use. Keep it a single number.
-# serial 39
+# serial 40
dnl CARES_INCLUDES_ARPA_INET
@@ -1507,6 +1506,232 @@ AC_DEFUN([CARES_CHECK_FUNC_GETSERVBYPORT_R], [
])
+dnl CARES_CHECK_FUNC_INET_NET_PTON
+dnl -------------------------------------------------
+dnl Verify if inet_net_pton is available, prototyped, can
+dnl be compiled and seems to work. If all of these are
+dnl true, and usage has not been previously disallowed
+dnl with shell variable cares_disallow_inet_net_pton, then
+dnl HAVE_INET_NET_PTON will be defined.
+
+AC_DEFUN([CARES_CHECK_FUNC_INET_NET_PTON], [
+ AC_REQUIRE([CARES_INCLUDES_STDLIB])dnl
+ AC_REQUIRE([CARES_INCLUDES_ARPA_INET])dnl
+ AC_REQUIRE([CARES_INCLUDES_STRING])dnl
+ #
+ tst_links_inet_net_pton="unknown"
+ tst_proto_inet_net_pton="unknown"
+ tst_compi_inet_net_pton="unknown"
+ tst_works_inet_net_pton="unknown"
+ tst_allow_inet_net_pton="unknown"
+ #
+ AC_MSG_CHECKING([if inet_net_pton can be linked])
+ AC_LINK_IFELSE([
+ AC_LANG_FUNC_LINK_TRY([inet_net_pton])
+ ],[
+ AC_MSG_RESULT([yes])
+ tst_links_inet_net_pton="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ tst_links_inet_net_pton="no"
+ ])
+ #
+ if test "$tst_links_inet_net_pton" = "yes"; then
+ AC_MSG_CHECKING([if inet_net_pton is prototyped])
+ AC_EGREP_CPP([inet_net_pton],[
+ $cares_includes_arpa_inet
+ ],[
+ AC_MSG_RESULT([yes])
+ tst_proto_inet_net_pton="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ tst_proto_inet_net_pton="no"
+ ])
+ fi
+ #
+ if test "$tst_proto_inet_net_pton" = "yes"; then
+ AC_MSG_CHECKING([if inet_net_pton is compilable])
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+ $cares_includes_arpa_inet
+ ]],[[
+ if(0 != inet_net_pton(0, 0, 0, 0))
+ return 1;
+ ]])
+ ],[
+ AC_MSG_RESULT([yes])
+ tst_compi_inet_net_pton="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ tst_compi_inet_net_pton="no"
+ ])
+ fi
+ #
+ dnl only do runtime verification when not cross-compiling
+ if test "x$cross_compiling" != "xyes" &&
+ test "$tst_compi_inet_net_pton" = "yes"; then
+ AC_MSG_CHECKING([if inet_net_pton seems to work])
+ AC_RUN_IFELSE([
+ AC_LANG_PROGRAM([[
+ $cares_includes_stdlib
+ $cares_includes_arpa_inet
+ $cares_includes_string
+ ]],[[
+ unsigned char ipv6a[16+1];
+ unsigned char ipv4a[4+1];
+ const char *ipv6net1 = "fe80::214:4fff:fe0b:76c8";
+ const char *ipv6net2 = "::fffe:7f00:1";
+ const char *ipv6net3 = "7f20:1::/64";
+ const char *ipv6net4 = "7f20:1::/2147483649";
+ const char *ipv4net1 = "192.168.100.1";
+ const char *ipv4net2 = "192.168.100/32";
+ const char *ipv4net3 = "192.168.100.1/2147483649";
+ /* - */
+ memset(ipv4a, 1, sizeof(ipv4a));
+ if(32 != inet_net_pton(AF_INET, ipv4net1, ipv4a, 4))
+ exit(1); /* fail */
+ /* - */
+ if( (ipv4a[0x00] != 0xc0) ||
+ (ipv4a[0x01] != 0xa8) ||
+ (ipv4a[0x02] != 0x64) ||
+ (ipv4a[0x03] != 0x01) ||
+ (ipv4a[0x04] != 0x01) )
+ exit(1); /* fail */
+ /* - */
+ memset(ipv4a, 1, sizeof(ipv4a));
+ if(32 != inet_net_pton(AF_INET, ipv4net2, ipv4a, 4))
+ exit(1); /* fail */
+ /* - */
+ if( (ipv4a[0x00] != 0xc0) ||
+ (ipv4a[0x01] != 0xa8) ||
+ (ipv4a[0x02] != 0x64) ||
+ (ipv4a[0x03] != 0x00) ||
+ (ipv4a[0x04] != 0x01) )
+ exit(1); /* fail */
+ /* - */
+ memset(ipv4a, 1, sizeof(ipv4a));
+ if(-1 != inet_net_pton(AF_INET, ipv4net3, ipv4a, 4))
+ exit(1); /* fail */
+ /* - */
+ memset(ipv6a, 1, sizeof(ipv6a));
+ if(128 != inet_net_pton(AF_INET6, ipv6net1, ipv6a, 16))
+ exit(1); /* fail */
+ /* - */
+ if( (ipv6a[0x00] != 0xfe) ||
+ (ipv6a[0x01] != 0x80) ||
+ (ipv6a[0x08] != 0x02) ||
+ (ipv6a[0x09] != 0x14) ||
+ (ipv6a[0x0a] != 0x4f) ||
+ (ipv6a[0x0b] != 0xff) ||
+ (ipv6a[0x0c] != 0xfe) ||
+ (ipv6a[0x0d] != 0x0b) ||
+ (ipv6a[0x0e] != 0x76) ||
+ (ipv6a[0x0f] != 0xc8) ||
+ (ipv6a[0x10] != 0x01) )
+ exit(1); /* fail */
+ /* - */
+ if( (ipv6a[0x02] != 0x0) ||
+ (ipv6a[0x03] != 0x0) ||
+ (ipv6a[0x04] != 0x0) ||
+ (ipv6a[0x05] != 0x0) ||
+ (ipv6a[0x06] != 0x0) ||
+ (ipv6a[0x07] != 0x0) )
+ exit(1); /* fail */
+ /* - */
+ memset(ipv6a, 0, sizeof(ipv6a));
+ ipv6a[0x10] = 0x01;
+ if(128 != inet_net_pton(AF_INET6, ipv6net2, ipv6a, 16))
+ exit(1); /* fail */
+ /* - */
+ if( (ipv6a[0x0a] != 0xff) ||
+ (ipv6a[0x0b] != 0xfe) ||
+ (ipv6a[0x0c] != 0x7f) ||
+ (ipv6a[0x0f] != 0x01) ||
+ (ipv6a[0x10] != 0x01) )
+ exit(1); /* fail */
+ /* - */
+ if( (ipv6a[0x00] != 0x0) ||
+ (ipv6a[0x01] != 0x0) ||
+ (ipv6a[0x02] != 0x0) ||
+ (ipv6a[0x03] != 0x0) ||
+ (ipv6a[0x04] != 0x0) ||
+ (ipv6a[0x05] != 0x0) ||
+ (ipv6a[0x06] != 0x0) ||
+ (ipv6a[0x07] != 0x0) ||
+ (ipv6a[0x08] != 0x0) ||
+ (ipv6a[0x09] != 0x0) ||
+ (ipv6a[0x0d] != 0x0) ||
+ (ipv6a[0x0e] != 0x0) )
+ exit(1); /* fail */
+ /* - */
+ memset(ipv6a, 1, sizeof(ipv6a));
+ if(64 != inet_net_pton(AF_INET6, ipv6net3, ipv6a, 16))
+ exit(1); /* fail */
+ if( (ipv6a[0x00] != 0x7f) ||
+ (ipv6a[0x01] != 0x20) ||
+ (ipv6a[0x03] != 0x01) ||
+ (ipv6a[0x08] != 0x01) ||
+ (ipv6a[0x09] != 0x01) ||
+ (ipv6a[0x0a] != 0x01) ||
+ (ipv6a[0x0b] != 0x01) ||
+ (ipv6a[0x0c] != 0x01) ||
+ (ipv6a[0x0d] != 0x01) ||
+ (ipv6a[0x0e] != 0x01) ||
+ (ipv6a[0x0f] != 0x01) ||
+ (ipv6a[0x10] != 0x01) )
+ exit(1); /* fail */
+ if( (ipv6a[0x02] != 0x0) ||
+ (ipv6a[0x04] != 0x0) ||
+ (ipv6a[0x05] != 0x0) ||
+ (ipv6a[0x06] != 0x0) ||
+ (ipv6a[0x07] != 0x0) ||
+ (ipv6a[0x07] != 0x0) )
+ exit(1); /* fail */
+ /* - */
+ memset(ipv6a, 1, sizeof(ipv6a));
+ if(-1 != inet_net_pton(AF_INET6, ipv6net4, ipv6a, 16))
+ exit(1); /* fail */
+ /* - */
+ exit(0);
+ ]])
+ ],[
+ AC_MSG_RESULT([yes])
+ tst_works_inet_net_pton="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ tst_works_inet_net_pton="no"
+ ])
+ fi
+ #
+ if test "$tst_compi_inet_net_pton" = "yes" &&
+ test "$tst_works_inet_net_pton" != "no"; then
+ AC_MSG_CHECKING([if inet_net_pton usage allowed])
+ if test "x$cares_disallow_inet_net_pton" != "xyes"; then
+ AC_MSG_RESULT([yes])
+ tst_allow_inet_net_pton="yes"
+ else
+ AC_MSG_RESULT([no])
+ tst_allow_inet_net_pton="no"
+ fi
+ fi
+ #
+ AC_MSG_CHECKING([if inet_net_pton might be used])
+ if test "$tst_links_inet_net_pton" = "yes" &&
+ test "$tst_proto_inet_net_pton" = "yes" &&
+ test "$tst_compi_inet_net_pton" = "yes" &&
+ test "$tst_allow_inet_net_pton" = "yes" &&
+ test "$tst_works_inet_net_pton" != "no"; then
+ AC_MSG_RESULT([yes])
+ AC_DEFINE_UNQUOTED(HAVE_INET_NET_PTON, 1,
+ [Define to 1 if you have a IPv6 capable working inet_net_pton function.])
+ ac_cv_func_inet_net_pton="yes"
+ else
+ AC_MSG_RESULT([no])
+ ac_cv_func_inet_net_pton="no"
+ fi
+])
+
+
dnl CARES_CHECK_FUNC_INET_NTOP
dnl -------------------------------------------------
dnl Verify if inet_ntop is available, prototyped, can