io/test-stat.c

   1 /* Copyright (C) 2000-2024 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library 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 GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 /* We need to define:
  19 #define _FILE_OFFSET_BITS 64
  20 #define _LARGEFILE64_SOURCE 1
  21 */
  22
  23 #include <assert.h>
  24 #include <stddef.h>
  25 #include <sys/stat.h>
  26
  27 static int
  28 do_test (void)
  29 {
  30   /* With _FILE_OFFSET_BITS=64 struct stat and struct stat64 should
  31      be identical.  */
  32   assert (sizeof (struct stat)
  33           == sizeof (struct stat64));
  34   assert (offsetof (struct stat, st_dev)
  35           == offsetof (struct stat64, st_dev));
  36   assert (offsetof (struct stat, st_ino)
  37           == offsetof (struct stat64, st_ino));
  38   assert (offsetof (struct stat, st_mode)
  39           == offsetof (struct stat64, st_mode));
  40   assert (offsetof (struct stat, st_nlink)
  41           == offsetof (struct stat64, st_nlink));
  42   assert (offsetof (struct stat, st_uid)
  43           == offsetof (struct stat64, st_uid));
  44   assert (offsetof (struct stat, st_gid)
  45           == offsetof (struct stat64, st_gid));
  46   assert (offsetof (struct stat, st_rdev)
  47           == offsetof (struct stat64, st_rdev));
  48   assert (offsetof (struct stat, st_size)
  49           == offsetof (struct stat64, st_size));
  50   assert (offsetof (struct stat, st_atime)
  51           == offsetof (struct stat64, st_atime));
  52   assert (offsetof (struct stat, st_mtime)
  53           == offsetof (struct stat64, st_mtime));
  54   assert (offsetof (struct stat, st_ctime)
  55           == offsetof (struct stat64, st_ctime));
  56   assert (offsetof (struct stat, st_blksize)
  57           == offsetof (struct stat64, st_blksize));
  58   assert (offsetof (struct stat, st_blocks)
  59           == offsetof (struct stat64, st_blocks));
  60 #if 0
  61   /* Some systems have st_fstype but not all.  Don't check it for now.  */
  62   assert (offsetof (struct stat, st_fstype)
  63           == offsetof (struct stat64, st_fstype));
  64 #endif
  65   return 0;
  66 }
  67
  68 #define TEST_FUNCTION do_test ()
  69 #include "../test-skeleton.c"