bsd/netinet/udp_usrreq.c

1307 	struct ip_moptions *mopts;
1578 	mopts = inp->inp_moptions;
1579 	if (mopts != NULL) {
1580 		IMO_LOCK(mopts);
1581 		IMO_ADDREF_LOCKED(mopts);
1583 		    mopts->imo_multicast_ifp != NULL) {
1585 			inp->inp_last_outifp = mopts->imo_multicast_ifp;
1587 		IMO_UNLOCK(mopts);
1610 	error = ip_output(m, inpopts, &ro, soopts, mopts, &ipoa);
1613 	if (mopts != NULL)
1614 		IMO_REMREF(mopts);