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/*
* Check silent decoding of sendmmsg and recvmmsg syscalls.
*
* Copyright (c) 2016-2021 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2016-2023 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <stdio.h>
#include "msghdr.h"
int
main(void)
{
int fds[2];
if (socketpair(AF_UNIX, SOCK_STREAM, 0, fds))
perror_msg_and_skip("socketpair");
char buf = 'A';
struct iovec iov = { .iov_base = &buf, .iov_len = sizeof(buf) };
struct mmsghdr mh = {
.msg_hdr = {
.msg_iov = &iov,
.msg_iovlen = 1
}
};
int rc = send_mmsg(fds[1], &mh, 1, MSG_DONTWAIT);
if (rc < 0)
perror_msg_and_skip("sendmmsg");
printf("sendmmsg(%d, %p, 1, MSG_DONTWAIT) = %d\n", fds[1], &mh, rc);
kernel_old_timespec_t t = { .tv_sec = 0, .tv_nsec = 12345678 };
rc = recv_mmsg(fds[0], &mh, 1, MSG_DONTWAIT, &t);
printf("recvmmsg(%d, %p, 1, MSG_DONTWAIT, %p) = %d\n",
fds[0], &mh, &t, rc);
puts("+++ exited with 0 +++");
return 0;
}
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