tests/test-utimensat.c

   1 /* Tests of utimensat.
   2    Copyright (C) 2009-2024 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 /* Written by Eric Blake <ebb9@byu.net>, 2009.  */
  18
  19 #include <config.h>
  20
  21 #include <sys/stat.h>
  22
  23 #include "signature.h"
  24 SIGNATURE_CHECK (utimensat, int, (int, char const *, struct timespec const[2],
  25                                   int));
  26
  27 #include <fcntl.h>
  28 #include <errno.h>
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32 #include <unistd.h>
  33
  34 #include "stat-time.h"
  35 #include "timespec.h"
  36 #include "utimecmp.h"
  37 #include "ignore-value.h"
  38 #include "macros.h"
  39
  40 #define BASE "test-utimensat.t"
  41
  42 #include "test-lutimens.h"
  43 #include "test-utimens.h"
  44
  45 static int dfd = AT_FDCWD;
  46
  47 /* Wrap utimensat to behave like utimens.  */
  48 static int
  49 do_utimensat (char const *name, struct timespec const times[2])
  50 {
  51   return utimensat (dfd, name, times, 0);
  52 }
  53
  54 /* Wrap utimensat to behave like lutimens.  */
  55 static int
  56 do_lutimensat (char const *name, struct timespec const times[2])
  57 {
  58   return utimensat (dfd, name, times, AT_SYMLINK_NOFOLLOW);
  59 }
  60
  61 int
  62 main (void)
  63 {
  64   int result1; /* Skip because of no symlink support.  */
  65   int result2; /* Skip because of no lutimens support.  */
  66   int fd;
  67
  68   /* Clean up any trash from prior testsuite runs.  */
  69   ignore_value (system ("rm -rf " BASE "*"));
  70
  71   /* Test behaviour for invalid file descriptors.  */
  72   {
  73     errno = 0;
  74     ASSERT (utimensat (-1, "foo", NULL, 0) == -1);
  75     ASSERT (errno == EBADF);
  76   }
  77   {
  78     close (99);
  79     errno = 0;
  80     ASSERT (utimensat (99, "foo", NULL, 0) == -1);
  81     ASSERT (errno == EBADF);
  82   }
  83
  84   /* Basic tests.  */
  85   result1 = test_utimens (do_utimensat, true);
  86   result2 = test_lutimens (do_lutimensat, result1 == 0);
  87   dfd = open (".", O_RDONLY);
  88   ASSERT (0 <= dfd);
  89   ASSERT (test_utimens (do_utimensat, false) == result1);
  90   ASSERT (test_lutimens (do_lutimensat, false) == result2);
  91   /* We expect 0/0, 0/77, or 77/77, but not 77/0.  */
  92   ASSERT (result1 <= result2);
  93
  94   /* Directory-relative tests.  */
  95   ASSERT (mkdir (BASE "dir", 0700) == 0);
  96   ASSERT (chdir (BASE "dir") == 0);
  97   fd = creat ("file", 0600);
  98   ASSERT (0 <= fd);
  99   errno = 0;
 100   ASSERT (utimensat (fd, ".", NULL, 0) == -1);
 101   ASSERT (errno == ENOTDIR);
 102   {
 103     struct timespec ts[2];
 104     struct stat st;
 105     ts[0].tv_sec = Y2K;
 106     ts[0].tv_nsec = 0;
 107     ts[1].tv_sec = Y2K;
 108     ts[1].tv_nsec = 0;
 109     ASSERT (utimensat (dfd, BASE "dir/file", ts, AT_SYMLINK_NOFOLLOW) == 0);
 110     ASSERT (stat ("file", &st) == 0);
 111     ASSERT (st.st_atime == Y2K);
 112     ASSERT (get_stat_atime_ns (&st) == 0);
 113     ASSERT (st.st_mtime == Y2K);
 114     ASSERT (get_stat_mtime_ns (&st) == 0);
 115   }
 116   ASSERT (close (fd) == 0);
 117   ASSERT (close (dfd) == 0);
 118   errno = 0;
 119   ASSERT (utimensat (dfd, ".", NULL, 0) == -1);
 120   ASSERT (errno == EBADF);
 121
 122   /* Cleanup.  */
 123   ASSERT (chdir ("..") == 0);
 124   ASSERT (unlink (BASE "dir/file") == 0);
 125   ASSERT (rmdir (BASE "dir") == 0);
 126   int result = result1 | result2;
 127   return (result ? result : test_exit_status);
 128 }