1 /*
2 * Check decoding of timeout argument of recvmmsg syscall.
3 *
4 * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
5 * Copyright (c) 2016-2017 The strace developers.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "tests.h"
32 #include <stdio.h>
33
34 #include "msghdr.h"
35
36 int
main(void)37 main(void)
38 {
39 int fds[2];
40 if (socketpair(AF_UNIX, SOCK_STREAM, 0, fds))
41 perror_msg_and_skip("socketpair");
42
43 if (send(fds[1], "A", 1, 0) != 1)
44 perror_msg_and_skip("send");
45
46 char buf;
47 struct iovec iov = { .iov_base = &buf, .iov_len = sizeof(buf) };
48 struct mmsghdr mh = {
49 .msg_hdr = {
50 .msg_iov = &iov,
51 .msg_iovlen = 1
52 }
53 };
54 TAIL_ALLOC_OBJECT_CONST_PTR(struct timespec, ts);
55 ts->tv_sec = 0;
56 ts->tv_nsec = 12345678;
57
58 int rc = recv_mmsg(-1, &mh, 1, 0, ts);
59 printf("recvmmsg(-1, %p, 1, 0, {tv_sec=0, tv_nsec=12345678})"
60 " = %s\n", &mh, sprintrc(rc));
61
62 rc = recv_mmsg(fds[0], &mh, 1, 0, ts);
63 if (rc < 0)
64 perror_msg_and_skip("recvmmsg");
65 printf("recvmmsg(%d, [{msg_hdr={msg_name=NULL, msg_namelen=0"
66 ", msg_iov=[{iov_base=\"A\", iov_len=1}], msg_iovlen=1"
67 ", msg_controllen=0, msg_flags=0}, msg_len=1}], 1, 0"
68 ", {tv_sec=0, tv_nsec=12345678}) = "
69 "%d (left {tv_sec=0, tv_nsec=%d})\n",
70 fds[0], rc, (int) ts->tv_nsec);
71
72 ts->tv_sec = 0xdeadbeefU;
73 ts->tv_nsec = 0xfacefeedU;
74
75 rc = recv_mmsg(fds[0], &mh, 1, 0, ts);
76 printf("recvmmsg(%d, %p, 1, 0, {tv_sec=%lld, tv_nsec=%llu}) = %s\n",
77 fds[0], &mh, (long long) ts->tv_sec,
78 zero_extend_signed_to_ull(ts->tv_nsec), sprintrc(rc));
79
80 ts->tv_sec = (time_t) 0xcafef00ddeadbeefLL;
81 ts->tv_nsec = (long) 0xbadc0dedfacefeedLL;
82
83 rc = recv_mmsg(fds[0], &mh, 1, 0, ts);
84 printf("recvmmsg(%d, %p, 1, 0, {tv_sec=%lld, tv_nsec=%llu}) = %s\n",
85 fds[0], &mh, (long long) ts->tv_sec,
86 zero_extend_signed_to_ull(ts->tv_nsec), sprintrc(rc));
87
88 puts("+++ exited with 0 +++");
89 return 0;
90 }
91