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70 lines
2.3 KiB
70 lines
2.3 KiB
4 months ago
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/*
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* Wrappers for recvmmsg and sendmmsg 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 <errno.h>
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#include <asm/unistd.h>
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#ifndef __NR_recvmmsg
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# define __NR_recvmmsg -1
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#endif
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#define SC_recvmmsg 19
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#ifndef __NR_sendmmsg
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# define __NR_sendmmsg -1
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#endif
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#define SC_sendmmsg 20
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int
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recv_mmsg(const int fd, struct mmsghdr *const vec,
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const unsigned int vlen, const unsigned int flags,
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struct timespec *const timeout)
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{
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int rc = socketcall(__NR_recvmmsg, SC_recvmmsg,
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fd, (long) vec, vlen, flags, (long) timeout);
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if (rc < 0 && ENOSYS == errno)
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perror_msg_and_skip("recvmmsg");
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return rc;
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}
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int
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send_mmsg(const int fd, struct mmsghdr *const vec,
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const unsigned int vlen, const unsigned int flags)
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{
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int rc = socketcall(__NR_sendmmsg, SC_sendmmsg,
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fd, (long) vec, vlen, flags, 0);
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if (rc < 0 && ENOSYS == errno)
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perror_msg_and_skip("sendmmsg");
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return rc;
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}
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