253 	caddr_t netmask = NULL;  in rn_lookup_args()  local
263 		netmask = rn_get_key(x);  in rn_lookup_args()
266 	if (x && netmask) {  in rn_lookup_args()
267 		while (x && rn_get_mask(x) != netmask) {  in rn_lookup_args()
556 	caddr_t netmask = (caddr_t)n_arg;  in rn_addmask()  local
564 	if ((mlen = *(u_char *)netmask) > max_keylen) {  in rn_addmask()
577 		Bcopy(netmask + skip, addmask_key + skip, mlen - skip);  in rn_addmask()
604 	netmask = cp = (caddr_t)(x + 2);  in rn_addmask()
616 	cplim = netmask + mlen; isnormal = 1;  in rn_addmask()
617 	for (cp = netmask + skip; (cp < cplim) && *(u_char *)cp == 0xff;) {  in rn_addmask()
628 	b += (cp - netmask) << 3;  in rn_addmask()
679 	caddr_t netmask = rnarg_unpack(n_arg, &masklen);  in rn_addroute()  local
694 	if (netmask) {  in rn_addroute()
695 		if ((x = rn_addmask(netmask, 0, top->rn_offset)) == 0) {  in rn_addroute()
703 		netmask = rn_get_key(x);  in rn_addroute()
711 			if (rn_get_mask(tt) == netmask) {  in rn_addroute()
714 			if (netmask == 0 ||  in rn_addroute()
717 			    || rn_refines(netmask, rn_get_mask(tt))  in rn_addroute()
718 			    || rn_lexobetter(netmask, rn_get_mask(tt))))) {  in rn_addroute()
765 	if (netmask) {  in rn_addroute()
766 		rn_set_mask(tt, netmask, masklen);  in rn_addroute()
803 	if ((netmask == 0) || (b > t->rn_bit)) {  in rn_addroute()
834 		if (mmask == netmask) {  in rn_addroute()
839 		if (rn_refines(netmask, mmask)  in rn_addroute()
840 		    || rn_lexobetter(netmask, mmask)) {  in rn_addroute()
854 	caddr_t v, netmask;  in rn_delete()  local
858 	netmask = netmask_arg;  in rn_delete()
872 	if (netmask) {  in rn_delete()
873 		if ((x = rn_addmask(netmask, 1, head_off)) == 0) {  in rn_delete()
876 		netmask = rn_get_key(x);  in rn_delete()
877 		while (rn_get_mask(tt) != netmask) {  in rn_delete()