static void add_server_options(GDHCPServer *dhcp_server,
				struct dhcp_packet *packet)
{
	g_hash_table_foreach(dhcp_server->option_hash,
				add_option, packet);
}
static void add_server_options(GDHCPServer *dhcp_server,
				struct dhcp_packet *packet)
{
	g_hash_table_foreach(dhcp_server->option_hash,
				add_option, packet);
}