157 	caddr_t netmask = 0;  in rn_lookup()  local
163 		netmask = x->rn_key;  in rn_lookup()
166 	if (x && netmask) {  in rn_lookup()
167 		while (x && x->rn_mask != netmask)  in rn_lookup()
403 	caddr_t netmask = (caddr_t)n_arg;  in rn_addmask()  local
411 	if ((mlen = *(u_char *)netmask) > max_keylen)  in rn_addmask()
420 		Bcopy(netmask + skip, addmask_key + skip, mlen - skip);  in rn_addmask()
444 	netmask = cp = (caddr_t)(x + 2);  in rn_addmask()
455 	cplim = netmask + mlen; isnormal = 1;  in rn_addmask()
456 	for (cp = netmask + skip; (cp < cplim) && *(u_char *)cp == 0xff;)  in rn_addmask()
464 	b += (cp - netmask) << 3;  in rn_addmask()
514 	caddr_t v = (caddr_t)v_arg, netmask = (caddr_t)n_arg;  in rn_addroute()  local
529 	if (netmask)  {  in rn_addroute()
530 		if ((x = rn_addmask(netmask, 0, top->rn_off)) == NULL)  in rn_addroute()
534 		netmask = x->rn_key;  in rn_addroute()
542 			if (tt->rn_mask == netmask)  in rn_addroute()
544 			if (netmask == 0 ||  in rn_addroute()
547 			       rn_refines(netmask, tt->rn_mask) ||  in rn_addroute()
548 			       rn_lexobetter(netmask, tt->rn_mask))))  in rn_addroute()
584 	if (netmask) {  in rn_addroute()
585 		tt->rn_mask = netmask;  in rn_addroute()
612 	if ((netmask == 0) || (b > t->rn_b ))  in rn_addroute()
639 		if (mmask == netmask) {  in rn_addroute()
644 		if (rn_refines(netmask, mmask) || rn_lexobetter(netmask, mmask))  in rn_addroute()
659 	caddr_t v, netmask;  in rn_delete()  local
663 	netmask = netmask_arg;  in rn_delete()
676 	if (netmask) {  in rn_delete()
677 		if ((x = rn_addmask(netmask, 1, head_off)) == NULL)  in rn_delete()
679 		netmask = x->rn_key;  in rn_delete()
680 		while (tt->rn_mask != netmask)  in rn_delete()