Patch to bind to ipv6 socket as well
Patch supplied by Fabian Knittel <fabian.knittel@avona.com>
--- oidentd-2.0.8/src/oidentd_inet_util.c	2006-05-22 02:31:19.000000000 +0200
+++ oidentd-2.0.8/src/oidentd_inet_util.c	2010-03-01 20:26:11.000000000 +0100
@@ -60,6 +60,12 @@
 #ifdef WANT_IPV6
 		case AF_INET6:
 			SIN6(ai->ai_addr)->sin6_port = listen_port;
+
+			if (setsockopt(listenfd, IPPROTO_IPV6, IPV6_V6ONLY, &one,
+							sizeof(one)) != 0) {
+				debug("setsockopt IPV6_V6ONLY: %s", strerror(errno));
+				return (-1);
+			}
 			break;
 #endif