244     sockaddr_union u;  in random_bind()  local
249     memset(&u, 0, sizeof u);  in random_bind()
253             u.sin.sin_family = family;  in random_bind()
254             slen = sizeof u.sin;  in random_bind()
257             u.sin6.sin6_family = family;  in random_bind()
258             slen = sizeof u.sin6;  in random_bind()
270             u.sin.sin_port = htons(port);  in random_bind()
272             u.sin6.sin6_port = htons(port);  in random_bind()
274         if (!bind(s, &u.sa, slen)) return 0;  in random_bind()
280         u.sin.sin_port = 0;  in random_bind()
282         u.sin6.sin6_port = 0;  in random_bind()
284     return bind(s, &u.sa, slen);  in random_bind()