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From 769faff8029083b43e8c4949ee9d7cd988f7ec01 Mon Sep 17 00:00:00 2001
From: mancha <mancha1@hush.com>
Date: Sun, 29 Sep 2013
Subject: Fix binding of IPV6 address in gnutls-serv
On Linux with /proc/sys/net/ipv6/bindv6only == 0 (which is now the
default), gnutls-serv cannot listen on ipv6.
Fix adapted for use with GnuTLS 2.10.5.
Relevant upstream commits:
--------------------------
https://gitorious.org/gnutls/gnutls/commit/1c315602306afc
https://gitorious.org/gnutls/gnutls/commit/9c1536d514dd83
---
serv.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
--- a/src/serv.c 2013-09-29
+++ b/src/serv.c 2013-09-29
@@ -701,6 +701,11 @@ listen_socket (const char *name, int lis
for (ptr = res; ptr != NULL; ptr = ptr->ai_next)
{
+#ifndef HAVE_IPV6
+ if (ptr->ai_family != AF_INET)
+ continue;
+#endif
+
/* Print what we are doing. */
{
char topbuf[512];
@@ -717,6 +722,17 @@ listen_socket (const char *name, int lis
continue;
}
+#if defined(HAVE_IPV6) && !defined(_WIN32)
+ if (ptr->ai_family == AF_INET6)
+ {
+ yes = 1;
+ /* avoid listen on ipv6 addresses failing
+ * because already listening on ipv4 addresses: */
+ setsockopt (s, IPPROTO_IPV6, IPV6_V6ONLY,
+ (const void *) &yes, sizeof (yes));
+ }
+#endif
+
yes = 1;
if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR,
(const void *) &yes, sizeof (yes)) < 0)
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