sig
type tag = [ `AF_INET6 ]
type address = Cf_ip6_addr.opaque Cf_ip6_addr.t * int * int32
val domain : tag Cf_socket.domain
val to_sockaddr : address -> tag Cf_socket.sockaddr
val of_sockaddr : tag Cf_socket.sockaddr -> address
val unspecified : tag Cf_socket.sockaddr
end