1 /*
2 * Wrappers for recvmmsg and sendmmsg syscalls.
3 *
4 * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 #include "tests.h"
31 #include <errno.h>
32 #include <asm/unistd.h>
33
34 #ifndef __NR_recvmmsg
35 # define __NR_recvmmsg -1
36 #endif
37 #define SC_recvmmsg 19
38
39 #ifndef __NR_sendmmsg
40 # define __NR_sendmmsg -1
41 #endif
42 #define SC_sendmmsg 20
43
44 int
recv_mmsg(const int fd,struct mmsghdr * const vec,const unsigned int vlen,const unsigned int flags,struct timespec * const timeout)45 recv_mmsg(const int fd, struct mmsghdr *const vec,
46 const unsigned int vlen, const unsigned int flags,
47 struct timespec *const timeout)
48 {
49 int rc = socketcall(__NR_recvmmsg, SC_recvmmsg,
50 fd, (long) vec, vlen, flags, (long) timeout);
51
52 if (rc < 0 && ENOSYS == errno)
53 perror_msg_and_skip("recvmmsg");
54
55 return rc;
56 }
57
58 int
send_mmsg(const int fd,struct mmsghdr * const vec,const unsigned int vlen,const unsigned int flags)59 send_mmsg(const int fd, struct mmsghdr *const vec,
60 const unsigned int vlen, const unsigned int flags)
61 {
62 int rc = socketcall(__NR_sendmmsg, SC_sendmmsg,
63 fd, (long) vec, vlen, flags, 0);
64
65 if (rc < 0 && ENOSYS == errno)
66 perror_msg_and_skip("sendmmsg");
67
68 return rc;
69 }
70