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/* SPDX-License-Identifier: MIT */
/*
* Check that writev on a socket that has been shutdown(2) fails
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <netinet/tcp.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include "liburing.h"
static void sig_pipe(int sig)
{
}
int main(int argc, char *argv[])
{
int p_fd[2], ret;
int32_t recv_s0;
int32_t val = 1;
struct sockaddr_in addr;
if (argc > 1)
return 0;
srand(getpid());
recv_s0 = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, IPPROTO_TCP);
ret = setsockopt(recv_s0, SOL_SOCKET, SO_REUSEPORT, &val, sizeof(val));
assert(ret != -1);
ret = setsockopt(recv_s0, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
assert(ret != -1);
addr.sin_family = AF_INET;
addr.sin_port = htons((rand() % 61440) + 4096);
addr.sin_addr.s_addr = inet_addr("127.0.0.1");
ret = bind(recv_s0, (struct sockaddr*)&addr, sizeof(addr));
assert(ret != -1);
ret = listen(recv_s0, 128);
assert(ret != -1);
p_fd[1] = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, IPPROTO_TCP);
val = 1;
ret = setsockopt(p_fd[1], IPPROTO_TCP, TCP_NODELAY, &val, sizeof(val));
assert(ret != -1);
int32_t flags = fcntl(p_fd[1], F_GETFL, 0);
assert(flags != -1);
flags |= O_NONBLOCK;
ret = fcntl(p_fd[1], F_SETFL, flags);
assert(ret != -1);
ret = connect(p_fd[1], (struct sockaddr*)&addr, sizeof(addr));
assert(ret == -1);
flags = fcntl(p_fd[1], F_GETFL, 0);
assert(flags != -1);
flags &= ~O_NONBLOCK;
ret = fcntl(p_fd[1], F_SETFL, flags);
assert(ret != -1);
p_fd[0] = accept(recv_s0, NULL, NULL);
assert(p_fd[0] != -1);
signal(SIGPIPE, sig_pipe);
while (1) {
int32_t code;
socklen_t code_len = sizeof(code);
ret = getsockopt(p_fd[1], SOL_SOCKET, SO_ERROR, &code, &code_len);
assert(ret != -1);
if (!code)
break;
}
struct io_uring m_io_uring;
ret = io_uring_queue_init(32, &m_io_uring, 0);
assert(ret >= 0);
{
struct io_uring_cqe *cqe;
struct io_uring_sqe *sqe;
int res;
sqe = io_uring_get_sqe(&m_io_uring);
io_uring_prep_shutdown(sqe, p_fd[1], SHUT_WR);
sqe->user_data = 1;
res = io_uring_submit_and_wait(&m_io_uring, 1);
assert(res != -1);
res = io_uring_wait_cqe(&m_io_uring, &cqe);
if (res < 0) {
fprintf(stderr, "wait: %s\n", strerror(-ret));
goto err;
}
if (cqe->res) {
if (cqe->res == -EINVAL) {
fprintf(stdout, "Shutdown not supported, skipping\n");
goto done;
}
fprintf(stderr, "writev: %d\n", cqe->res);
goto err;
}
io_uring_cqe_seen(&m_io_uring, cqe);
}
{
struct io_uring_cqe *cqe;
struct io_uring_sqe *sqe;
struct iovec iov[1];
char send_buff[128];
int res;
iov[0].iov_base = send_buff;
iov[0].iov_len = sizeof(send_buff);
sqe = io_uring_get_sqe(&m_io_uring);
assert(sqe != NULL);
io_uring_prep_writev(sqe, p_fd[1], iov, 1, 0);
res = io_uring_submit_and_wait(&m_io_uring, 1);
assert(res != -1);
res = io_uring_wait_cqe(&m_io_uring, &cqe);
if (res < 0) {
fprintf(stderr, "wait: %s\n", strerror(-ret));
goto err;
}
if (cqe->res != -EPIPE) {
fprintf(stderr, "writev: %d\n", cqe->res);
goto err;
}
io_uring_cqe_seen(&m_io_uring, cqe);
}
done:
io_uring_queue_exit(&m_io_uring);
return 0;
err:
io_uring_queue_exit(&m_io_uring);
return 1;
}
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