+int sd_dhcp_client_get_dns(sd_dhcp_client *client, struct in_addr **addr, size_t *addr_size);
+int sd_dhcp_client_get_mtu(sd_dhcp_client *client, uint16_t *mtu);
+int sd_dhcp_client_get_domainname(sd_dhcp_client *client, const char **domainname);
+int sd_dhcp_client_get_hostname(sd_dhcp_client *client, const char **hostname);