326 	caddr_t netmask = NULL;  in rn_lookup_args()  local
336 		netmask = rn_get_key(x);  in rn_lookup_args()
339 	if (x && netmask) {  in rn_lookup_args()
340 		while (x && rn_get_mask(x) != netmask) {  in rn_lookup_args()
652 	caddr_t netmask = rnarg_unpack(n_arg, &mlen0);  in rn_addmask()  local
674 		bcopy(netmask + skip, addmask_key + skip, mlen - skip);  in rn_addmask()
700 	netmask = nrn_entry->nrn_netmask;  in rn_addmask()
701 	Bcopy(addmask_key, netmask, mlen);  in rn_addmask()
702 	x = rn_insert(netmask, mask_rnhead, &maskduplicated, nrn_entry->nrn_base.rnb_nodes);  in rn_addmask()
712 	cplim = netmask + mlen;  in rn_addmask()
714 	for (cp = netmask + skip; (cp < cplim) && *(u_char *)cp == 0xff;) {  in rn_addmask()
725 	b += (cp - netmask) << 3;  in rn_addmask()
778 	caddr_t netmask = rnarg_unpack(n_arg, &mlen0);  in rn_addroute()  local
794 	if (netmask) {  in rn_addroute()
795 		if ((x = rn_addmask(netmask, 0, top->rn_offset)) == 0) {  in rn_addroute()
803 		netmask = rn_get_key(x, &mlen);  in rn_addroute()
811 			if (rn_get_mask(tt) == netmask) {  in rn_addroute()
814 			if (netmask == 0 ||  in rn_addroute()
817 			    || rn_refines(netmask, rn_get_mask(tt))  in rn_addroute()
818 			    || rn_lexobetter(netmask, rn_get_mask(tt))))) {  in rn_addroute()
865 	if (netmask) {  in rn_addroute()
866 		rn_set_mask(tt, netmask, mlen);  in rn_addroute()
903 	if ((netmask == 0) || (b > t->rn_bit)) {  in rn_addroute()
934 		if (mmask == netmask) {  in rn_addroute()
939 		if (rn_refines(netmask, mmask)  in rn_addroute()
940 		    || rn_lexobetter(netmask, mmask)) {  in rn_addroute()
953 	caddr_t netmask = rnarg_unpack(netmask_arg, &mlen0);  in rn_delete()  local
992 	if (netmask) {  in rn_delete()
993 		if ((x = rn_addmask(netmask, 1, head_off)) == 0) {  in rn_delete()
996 		netmask = rn_get_key(x, &masklen);  in rn_delete()
997 		while (rn_get_mask(tt) != netmask) {  in rn_delete()