bool address_exists(Link *link, int family, const union in_addr_union *in_addr);
int address_update(Address *address, unsigned char flags, unsigned char scope, const struct ifa_cacheinfo *cinfo);
int address_drop(Address *address);
-int address_configure(Address *address, Link *link, link_netlink_message_handler_t callback, bool update);
+int address_configure(Address *address, Link *link, link_netlink_message_handler_t callback, bool update, Address **ret);
int address_remove(Address *address, Link *link, link_netlink_message_handler_t callback);
bool address_equal(Address *a1, Address *a2);
bool address_is_ready(const Address *a);