INADDR_TO_IFP    1749 netinet/ip_output.c 		INADDR_TO_IFP(addr, ifp);
INADDR_TO_IFP    1813 netinet/ip_output.c 			INADDR_TO_IFP(mreq->imr_interface, ifp);
INADDR_TO_IFP    1874 netinet/ip_output.c 			INADDR_TO_IFP(mreq->imr_interface, ifp);