ack_lease
ack_lease(packet, lease, 0, 0);
ack_lease(packet, lease, 0, 0);
ack_lease(packet, lease, DHCPOFFER, cur_time + 120);
ack_lease(packet, lease, DHCPACK, 0);
ack_lease(packet, lease, DHCPACK, 0);
ack_lease(packet, &lease, DHCPACK, 0);
void ack_lease(struct packet *, struct lease *, unsigned int, time_t);