sockaddr_getsize_by_family
famlen = sockaddr_getsize_by_family(sa->sa_family);
socklen_t len = sockaddr_getsize_by_family(sa->sa_family);
if (addr_len != sockaddr_getsize_by_family(wgsa_family(wgsa))) {
sockaddr_getsize_by_family(wgsa_family(wgsa)))) {
socklen_t sa_len = sockaddr_getsize_by_family(
socklen_t len __diagused = sockaddr_getsize_by_family(af);
socklen_t sockaddr_getsize_by_family(sa_family_t);