File: chmod.c

package info (click to toggle)
strace 4.26-0.2
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 35,988 kB
  • sloc: ansic: 95,598; sh: 7,155; makefile: 2,489; awk: 335; perl: 267; sed: 6
file content (47 lines) | stat: -rw-r--r-- 946 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
/*
 * Copyright (c) 2016 Anchit Jain <anchitjain1234@gmail.com>
 * Copyright (c) 2016-2018 Dmitry V. Levin <ldv@altlinux.org>
 * All rights reserved.
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */

#include "tests.h"
#include <asm/unistd.h>

#if defined __NR_chmod

#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>

int
main(void)
{
	static const char fname[] = "chmod_test_file";

	if (open(fname, O_CREAT|O_RDONLY, 0400) < 0)
		perror_msg_and_fail("open");

	long rc = syscall(__NR_chmod, fname, 0600);
	printf("chmod(\"%s\", 0600) = %s\n", fname, sprintrc(rc));

	if (unlink(fname))
		perror_msg_and_fail("unlink");

	rc = syscall(__NR_chmod, fname, 051);
	printf("chmod(\"%s\", 051) = %s\n", fname, sprintrc(rc));

	rc = syscall(__NR_chmod, fname, 004);
	printf("chmod(\"%s\", 004) = %s\n", fname, sprintrc(rc));

	puts("+++ exited with 0 +++");
	return 0;
}

#else

SKIP_MAIN_UNDEFINED("__NR_chmod")

#endif