summaryrefslogtreecommitdiff
path: root/io/tst-getcwd-abspath.c
blob: 44693f02e01a2c6b10bd089e290fb3cd73144642 (plain)
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
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
/* BZ #22679 getcwd(3) should not succeed without returning an absolute path.

   Copyright (C) 2018-2020 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <support/check.h>
#include <support/namespace.h>
#include <support/support.h>
#include <support/temp_file.h>
#include <support/test-driver.h>
#include <support/xunistd.h>
#include <unistd.h>

static char *chroot_dir;

/* The actual test.  Run it in a subprocess, so that the test harness
   can remove the temporary directory in --direct mode.  */
static void
getcwd_callback (void *closure)
{
  xchroot (chroot_dir);

  errno = 0;
  char *cwd = getcwd (NULL, 0);
  TEST_COMPARE (errno, ENOENT);
  TEST_VERIFY (cwd == NULL);

  errno = 0;
  cwd = realpath (".", NULL);
  TEST_COMPARE (errno, ENOENT);
  TEST_VERIFY (cwd == NULL);

  _exit (0);
}

static int
do_test (void)
{
  support_become_root ();
  if (!support_can_chroot ())
    return EXIT_UNSUPPORTED;

  chroot_dir = support_create_temp_directory ("tst-getcwd-abspath-");
  support_isolate_in_subprocess (getcwd_callback, NULL);

  return 0;
}

#include <support/test-driver.c>