tests/test-getumask.c

   1 /* Test of retrieving the umask of the process.
   2    Copyright (C) 2020-2024 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 Bruno Haible.  */
  18
  19 #include <config.h>
  20
  21 #include <sys/stat.h>
  22
  23 #include "signature.h"
  24 SIGNATURE_CHECK (getumask, mode_t, (void));
  25
  26 #include "macros.h"
  27
  28 #if defined _WIN32 && !defined __CYGWIN__
  29 /* On native Windows, getumask() always returns 0111.  */
  30 # define ASSUME_UMASK_CONSTANT 1
  31 #endif
  32
  33 int
  34 main (void)
  35 {
  36   int mask;
  37
  38   mask = getumask ();
  39   ASSERT (mask >= 0);
  40
  41 #if !ASSUME_UMASK_CONSTANT
  42   /* These tests fail if the umask is required to not change.  */
  43
  44   umask (002);
  45
  46   mask = getumask ();
  47   ASSERT (mask == 002);
  48
  49   umask (077);
  50
  51   mask = getumask ();
  52   ASSERT (mask == 077);
  53
  54 #endif
  55
  56   return test_exit_status;
  57 }