CUSTOM_INHERIT1
ASSERT_OK(verify_sockopt(client_fd, CUSTOM_INHERIT1, "connect", 0), "verify_sockopt1");
err += verify_sockopt(fd, CUSTOM_INHERIT1, "listen", 1);
err += verify_sockopt(client_fd, CUSTOM_INHERIT1, "accept", 1);
for (i = CUSTOM_INHERIT1; i <= CUSTOM_LISTENER; i++) {
if (ctx->optname == CUSTOM_INHERIT1)