You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
2.3 KiB
64 lines
2.3 KiB
4 months ago
|
/*
|
||
|
|
* Check silent decoding of sendmmsg and recvmmsg syscalls.
|
||
|
|
*
|
||
|
|
* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
* 3. The name of the author may not be used to endorse or promote products
|
||
|
|
* derived from this software without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#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);
|
||
|
|
|
||
|
|
struct timespec 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;
|
||
|
|
}
|