-bool link_relevant(Link *l, unsigned char family);
-LinkAddress* link_find_address(Link *l, unsigned char family, union in_addr_union *in_addr);
+bool link_relevant(Link *l, int family);
+LinkAddress* link_find_address(Link *l, int family, const union in_addr_union *in_addr);
+void link_add_rrs(Link *l, bool force_remove);