CUSTOM_INHERIT2
ASSERT_OK(verify_sockopt(client_fd, CUSTOM_INHERIT2, "connect", 0), "verify_sockopt2");
err += verify_sockopt(fd, CUSTOM_INHERIT2, "listen", 1);
err += verify_sockopt(client_fd, CUSTOM_INHERIT2, "accept", 1);
else if (ctx->optname == CUSTOM_INHERIT2)