sig
type tag_t = unit
type address_t = unit Cf_socket.sockaddr_t
val domain : tag_t Cf_socket.domain_t
val to_sockaddr : address_t -> tag_t Cf_socket.sockaddr_t
val of_sockaddr : tag_t Cf_socket.sockaddr_t -> address_t
val unspecified : tag_t Cf_socket.sockaddr_t
end