static struct dhcp_lease *find_lease_by_nip(GDHCPServer *dhcp_server,
								uint32_t nip)
{
	return g_hash_table_lookup(dhcp_server->nip_lease_hash,
						GINT_TO_POINTER((int) nip));
}
static struct dhcp_lease *find_lease_by_nip(GDHCPServer *dhcp_server,
								uint32_t nip)
{
	return g_hash_table_lookup(dhcp_server->nip_lease_hash,
						GINT_TO_POINTER((int) nip));
}