nat_t *nat_lookupredir(np) natlookup_t *np;
nat_lookupredir(np) natlookup_t *np;
nat_t *nat_lookupredir(np)natlookup_t *np;{	nat_t *nat;	nat = nat_table[0][np->nl_inip.s_addr % NAT_SIZE];	for (; nat; nat = nat->nat_next)		if ((nat->nat_inip.s_addr == np->nl_inip.s_addr) &&		    (nat->nat_oip.s_addr == np->nl_outip.s_addr) &&		    (np->nl_inport == nat->nat_inport) &&		    (np->nl_outport == nat->nat_oport))			return nat;	return NULL;}