futimesat.c revision 4e9269aebc931f61d25a77b6dbfe29a9c4f805a6 
1/*
2 * Check decoding of futimesat syscall.
3 *
4 * Copyright (c) 2015-2016 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 <sys/syscall.h>
32
33#ifdef __NR_futimesat
34
35# include <stdio.h>
36# include <sys/time.h>
37# include <unistd.h>
38
39#define CAST_NUM(n)						\
40	(sizeof(n) == sizeof(long) ?				\
41		(unsigned long long) (unsigned long) (n) :	\
42		(unsigned long long) (n))
43
44int
45main(void)
46{
47	struct timeval tv;
48	if (gettimeofday(&tv, NULL))
49		perror_msg_and_fail("gettimeofday");
50
51	static const char sample[] = "futimesat_sample";
52	unsigned long dirfd = (unsigned long) 0xdeadbeef00000000 | -100U;
53
54	long rc = syscall(__NR_futimesat, dirfd, sample, 0);
55	printf("futimesat(AT_FDCWD, \"%s\", NULL) = %ld %s (%m)\n",
56	       sample, rc, errno2name());
57
58	struct timeval *const ts = tail_alloc(sizeof(*ts) * 2);
59	(void) tail_alloc(1);
60	dirfd = (unsigned long) 0xdeadbeefffffffff;
61
62	rc = syscall(__NR_futimesat, dirfd, 0, ts + 1);
63	printf("futimesat(%d, NULL, %p) = %ld %s (%m)\n",
64	       (int) dirfd, ts + 1, rc, errno2name());
65
66	ts[0].tv_sec = tv.tv_sec;
67	ts[0].tv_usec = tv.tv_usec;
68	ts[1].tv_sec = tv.tv_sec - 1;
69	ts[1].tv_usec = tv.tv_usec + 123456;
70
71	(void) close(0);
72	rc = syscall(__NR_futimesat, 0, "", ts);
73	printf("futimesat(0, \"\", [{%llu, %llu}, {%llu, %llu}])"
74	       " = %ld %s (%m)\n",
75	       CAST_NUM(ts[0].tv_sec), CAST_NUM(ts[0].tv_usec),
76	       CAST_NUM(ts[1].tv_sec), CAST_NUM(ts[1].tv_usec),
77	       rc, errno2name());
78
79	puts("+++ exited with 0 +++");
80	return 0;
81}
82
83#else
84
85SKIP_MAIN_UNDEFINED("__NR_futimesat")
86
87#endif
88