/*
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* Check silent decoding of sendmmsg and recvmmsg syscalls.
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*
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* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include <stdio.h>
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#include "msghdr.h"
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int
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main(void)
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{
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int fds[2];
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if (socketpair(AF_UNIX, SOCK_STREAM, 0, fds))
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perror_msg_and_skip("socketpair");
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char buf = 'A';
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struct iovec iov = { .iov_base = &buf, .iov_len = sizeof(buf) };
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struct mmsghdr mh = {
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.msg_hdr = {
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.msg_iov = &iov,
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.msg_iovlen = 1
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}
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};
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int rc = send_mmsg(fds[1], &mh, 1, MSG_DONTWAIT);
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if (rc < 0)
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perror_msg_and_skip("sendmmsg");
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printf("sendmmsg(%d, %p, 1, MSG_DONTWAIT) = %d\n", fds[1], &mh, rc);
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struct timespec t = { .tv_sec = 0, .tv_nsec = 12345678 };
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rc = recv_mmsg(fds[0], &mh, 1, MSG_DONTWAIT, &t);
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printf("recvmmsg(%d, %p, 1, MSG_DONTWAIT, %p) = %d\n",
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fds[0], &mh, &t, rc);
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puts("+++ exited with 0 +++");
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return 0;
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}
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