addr_eq
if (lease && !addr_eq(lease->ip_addr, cip)) {
int addr_eq(struct iaddr, struct iaddr);
if (!addr_eq(net, subnet_number(high, subnet->netmask))) {
if (!addr_eq(net, subnet->net)) {
if (addr_eq(lnet, subnet->net) && lhost >= i && lhost <= max) {
if (addr_eq(subnet_number(addr, rv->netmask), rv->net))
if (addr_eq(subnet_number(addr, rv->netmask), rv->net))
if (addr_eq(subnet_number(subnet->net, scan->netmask), scan->net) ||
addr_eq(subnet_number(scan->net, subnet->netmask), subnet->net)) {