+int sd_dhcp_client_get_address(sd_dhcp_client *client, struct in_addr *addr);
+int sd_dhcp_client_get_netmask(sd_dhcp_client *client, struct in_addr *addr);
+int sd_dhcp_client_prefixlen(const struct in_addr *addr);
+int sd_dhcp_client_get_router(sd_dhcp_client *client, struct in_addr *addr);
+
+int sd_dhcp_client_stop(sd_dhcp_client *client);