From 1be5a9b1fdbf891749615e87391cdd2a9c4d7113 Mon Sep 17 00:00:00 2001
From: Stefan Metzmacher <metze@samba.org>
Date: Sun, 10 Jul 2011 15:13:45 +0200
Subject: s4:lib/socket: iface_list_wildcard() should only return "::" if we
 have ipv6 interfaces

If glibc has IPv6 support, but it's not enabled in the running kernel
we should not try to listen on "::".

metze
---
 source4/lib/socket/interface.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/source4/lib/socket/interface.c b/source4/lib/socket/interface.c
index d5b610fea7..42e1946768 100644
--- a/source4/lib/socket/interface.c
+++ b/source4/lib/socket/interface.c
@@ -520,7 +520,19 @@ const char **iface_list_wildcard(TALLOC_CTX *mem_ctx, struct loadparm_context *l
 
 #ifdef HAVE_IPV6
 	if (lpcfg_parm_bool(lp_ctx, NULL, "ipv6", "enable", true)) {
-		return str_list_add(ret, "::");
+		struct interface *local_interfaces = NULL;
+
+		load_interface_list(ret, lp_ctx, &local_interfaces);
+
+		if (iface_list_first_v6(local_interfaces)) {
+			TALLOC_FREE(local_interfaces);
+			/*
+			 * only add "::" if we have at least
+			 * one ipv6 interface
+			 */
+			return str_list_add(ret, "::");
+		}
+		TALLOC_FREE(local_interfaces);
 	}
 #endif
 
-- 
cgit