From 60ec804047bca66d312ea1d3329d5a047f51ea52 Mon Sep 17 00:00:00 2001
From: Dominick Meglio <dcm5151@esu.edu>
Date: Tue, 5 Apr 2005 18:26:55 +0000
Subject: Provided implementations of inet_net_pton and inet_pton from BIND for
 systems that do not include these functions. These will be necessary for CIDR
 support and IPv6 support.

---
 ares/configure.ac | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)

(limited to 'ares/configure.ac')

diff --git a/ares/configure.ac b/ares/configure.ac
index ec1d3ba04..962ee20f2 100644
--- a/ares/configure.ac
+++ b/ares/configure.ac
@@ -120,4 +120,69 @@ CARES_CHECK_STRUCT(
      AC_DEFINE_UNQUOTED(HAVE_STRUCT_IN6_ADDR,1,[Define to 1 if you have struct in6_addr.])
 )
 
+dnl check for inet_pton
+AC_CHECK_FUNCS(inet_pton)
+dnl Some systems have it, but not IPv6
+if test "$ac_cv_func_inet_pton" = "yes" ; then
+AC_MSG_CHECKING(if inet_pton supports IPv6)
+AC_TRY_RUN(
+  [
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_WINSOCK_H
+#include <winsock.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+int main()
+  {
+    struct in6_addr addr6;
+    if (inet_pton(AF_INET6, "::1", &addr6) < 1)
+      exit(1);
+    else
+      exit(0);
+  }
+  ], [
+       AC_MSG_RESULT(yes)
+       AC_DEFINE_UNQUOTED(HAVE_INET_PTON_IPV6,1,[Define to 1 if inet_pton supports IPv6.])
+     ], AC_MSG_RESULT(no),AC_MSG_RESULT(no))
+fi
+dnl Check for inet_net_pton
+AC_CHECK_FUNCS(inet_net_pton)
+dnl Again, some systems have it, but not IPv6
+if test "$ac_cv_func_inet_net_pton" = "yes" ; then
+AC_MSG_CHECKING(if inet_net_pton supports IPv6)
+AC_TRY_RUN(
+  [
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_WINSOCK_H
+#include <winsock.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+int main()
+  {
+    struct in6_addr addr6;
+    if (inet_net_pton(AF_INET6, "::1", &addr6, sizeof(addr6)) < 1)
+      exit(1);
+    else
+      exit(0);
+  }
+  ], [
+       AC_MSG_RESULT(yes)
+       AC_DEFINE_UNQUOTED(HAVE_INET_NET_PTON_IPV6,1,[Define to 1 if inet_net_pton supports IPv6.])
+     ], AC_MSG_RESULT(no),AC_MSG_RESULT(no))
+fi
+
 AC_OUTPUT(Makefile)
-- 
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