aboutsummaryrefslogtreecommitdiff
path: root/io/tst-futimesat.c
blob: 3d41721f42f63ec61fc66da09211cf652d6da4b2 (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
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
/* futimesat basic tests.
   Copyright (C) 2021-2023 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 <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/time.h>

#include <support/test-driver.h>
#include <support/temp_file.h>

#ifndef struct_stat
# define struct_stat struct stat64
# define fstat       fstat64
# define fstatat     fstatat64
#endif

static int dir_fd;

static void
prepare (int argc, char *argv[])
{
  size_t test_dir_len = strlen (test_dir);
  static const char dir_name[] = "/tst-futimesat.XXXXXX";

  size_t dirbuflen = test_dir_len + sizeof (dir_name);
  char *dirbuf = malloc (dirbuflen);
  if (dirbuf == NULL)
    {
      puts ("out of memory");
      exit (1);
    }

  snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
  if (mkdtemp (dirbuf) == NULL)
    {
      puts ("cannot create temporary directory");
      exit (1);
    }

  add_temp_file (dirbuf);

  dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY);
  if (dir_fd == -1)
    {
      puts ("cannot open directory");
      exit (1);
    }
}
#define PREPARE prepare

static int
do_test (void)
{
  /* fdopendir takes over the descriptor, make a copy.  */
  int dupfd = dup (dir_fd);
  if (dupfd == -1)
    {
      puts ("dup failed");
      return 1;
    }
  if (lseek (dupfd, 0, SEEK_SET) != 0)
    {
      puts ("1st lseek failed");
      return 1;
    }

  /* The directory should be empty safe the . and .. files.  */
  DIR *dir = fdopendir (dupfd);
  if (dir == NULL)
    {
      puts ("fdopendir failed");
      return 1;
    }
  struct dirent64 *d;
  while ((d = readdir64 (dir)) != NULL)
    if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0)
      {
	printf ("temp directory contains file \"%s\"\n", d->d_name);
	return 1;
      }
  closedir (dir);

  /* Try to create a file.  */
  int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666);
  if (fd == -1)
    {
      if (errno == ENOSYS)
	{
	  puts ("*at functions not supported");
	  return 0;
	}

      puts ("file creation failed");
      return 1;
    }
  write (fd, "hello", 5);
  puts ("file created");

  struct_stat st1;
  if (fstat (fd, &st1) != 0)
    {
      puts ("fstat64 failed");
      return 1;
    }

  close (fd);

  struct timeval tv[2];
  tv[0].tv_sec = st1.st_atime + 1;
  tv[0].tv_usec = 0;
  tv[1].tv_sec = st1.st_mtime + 1;
  tv[1].tv_usec = 0;
  if (futimesat (dir_fd, "some-file", tv) != 0)
    {
      puts ("futimesat failed");
      return 1;
    }

  struct_stat st2;
  if (fstatat (dir_fd, "some-file", &st2, 0) != 0)
    {
      puts ("fstatat64 failed");
      return 1;
    }

  if (st2.st_mtime != tv[1].tv_sec
#ifdef _STATBUF_ST_NSEC
      || st2.st_mtim.tv_nsec != 0
#endif
      )
    {
      puts ("stat shows different mtime");
      return 1;
    }


  if (unlinkat (dir_fd, "some-file", 0) != 0)
    {
      puts ("unlinkat failed");
      return 1;
    }

  close (dir_fd);

  return 0;
}

#include <support/test-driver.c>