- Set IPPROTO_IP6 for ipv6 sockets otherwise invalid argument error.

git-svn-id: file:///svn/unbound/trunk@3625 be551aaa-1e26-0410-a405-d3ace91eadb9

doc/Changelog

@@ -1,3 +1,6 @@
+16 February 2016: Wouter
+	- Set IPPROTO_IP6 for ipv6 sockets otherwise invalid argument error.
+
 15 February 2016: Wouter
 	- ip-transparent option for FreeBSD with IP_BINDANY socket option.
 	- wait for sendto to drain socket buffers when they are full.

services/listen_dnsport.c

@@ -189,8 +189,8 @@ create_udp_sock(int family, int socktype, struct sockaddr* addr,
 		}
 #elif defined(IP_BINDANY)
 		if (transparent &&
-		    setsockopt(s, IPPROTO_IP, IP_BINDANY, (void*)&on,
-		    (socklen_t)sizeof(on)) < 0) {
+		    setsockopt(s, (family==AF_INET6? IPPROTO_IPV6:IPPROTO_IP),
+		    IP_BINDANY, (void*)&on, (socklen_t)sizeof(on)) < 0) {
 			log_warn("setsockopt(.. IP_BINDANY ..) failed: %s",
 			strerror(errno));
 		}