50 lines
1.0 KiB
C
50 lines
1.0 KiB
C
/*
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* Wrappers for recvmmsg and sendmmsg syscalls.
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*
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* Copyright (c) 2016-2018 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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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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