serverfd 15 samples/bpf/test_probe_write_user_user.c int serverfd, serverconnfd, clientfd; serverfd 33 samples/bpf/test_probe_write_user_user.c assert((serverfd = socket(AF_INET, SOCK_STREAM, 0)) > 0); serverfd 42 samples/bpf/test_probe_write_user_user.c assert(bind(serverfd, &serv_addr, sizeof(serv_addr)) == 0); serverfd 45 samples/bpf/test_probe_write_user_user.c assert(getsockname(serverfd, &serv_addr, &sockaddr_len) == 0); serverfd 56 samples/bpf/test_probe_write_user_user.c assert(listen(serverfd, 5) == 0); serverfd 65 samples/bpf/test_probe_write_user_user.c assert((serverconnfd = accept(serverfd, &tmp_addr, &sockaddr_len)) > 0);