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