resolved: clarify that LLMNR scopes must have a link assigned

This is supposed to remove some compiler warnings:

http://lists.freedesktop.org/archives/systemd-devel/2014-July/021393.html

diff --git a/src/resolve/resolved-dns-scope.c b/src/resolve/resolved-dns-scope.c
index 396ae19e488e97eb46a5c49beab16a744d3fe806..85709a4af8951d778daa127048a73f12dc3fdcd4 100644 (file)
--- a/src/resolve/resolved-dns-scope.c
+++ b/src/resolve/resolved-dns-scope.c
@@ -365,6 +365,10 @@ int dns_scope_good_key(DnsScope *s, DnsResourceKey *key) {
 int dns_scope_llmnr_membership(DnsScope *s, bool b) {
         int fd;
 
+        assert(s);
+        assert(s->protocol == DNS_PROTOCOL_LLMNR);
+        assert(s->link);
+
         if (s->family == AF_INET) {
                 struct ip_mreqn mreqn = {
                         .imr_multiaddr = LLMNR_MULTICAST_IPV4_ADDRESS,