SALEN
SALEN(sdl), sdl->sdl_family, sdl->sdl_index,
SALEN(sin), sin->sin_family, sin->sin_port,
SALEN(sin6), sin6->sin6_family, sin6->sin6_port,
SALEN(sun), sun->sun_family, (int)sizeof(sun->sun_path),
cp += roundup(SALEN((struct sockaddr *)sp), sizeof(u_int32_t));
if (SALEN(sa) == 0)
cp += roundup(SALEN(sa), sizeof(long));