sys/netinet/ip_output.c

1641 	struct ip_mreq lmreq, *mreq;
1722 		mreq = &lmreq;
1724 		if (!IN_MULTICAST(mreq->imr_multiaddr.s_addr)) {
1732 		if (in_nullhost(mreq->imr_interface)) {
1742 			sockaddr_in_init(&u.dst4, &mreq->imr_multiaddr, 0);
1748 			ifp = ip_multicast_if(&mreq->imr_interface, NULL);
1765 				      mreq->imr_multiaddr))
1781 		    in_addmulti(&mreq->imr_multiaddr, ifp)) == NULL) {
1797 		mreq = &lmreq;
1799 		if (!IN_MULTICAST(mreq->imr_multiaddr.s_addr)) {
1807 		if (in_nullhost(mreq->imr_interface))
1810 			ifp = ip_multicast_if(&mreq->imr_interface, NULL);
1823 				       mreq->imr_multiaddr))