tests/test-grantpt.c

   1 /* Test acquiring ownership of the slave side of a pseudo-terminal.
   2    Copyright (C) 2011-2024 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 #include <config.h>
  18
  19 #include <stdlib.h>
  20
  21 #include "signature.h"
  22 SIGNATURE_CHECK (grantpt, int, (int));
  23
  24 #include <errno.h>
  25 #include <unistd.h>
  26
  27 #include "macros.h"
  28
  29 int
  30 main (void)
  31 {
  32   /* Test behaviour for invalid file descriptors.
  33      These calls don't fail on OpenBSD (with gnulib's replacement) and on
  34      musl libc.  */
  35   {
  36     int ret;
  37
  38     errno = 0;
  39     ret = grantpt (-1);
  40     if (ret != 0)
  41       {
  42         ASSERT (ret == -1);
  43         ASSERT (errno == EBADF
  44                 || errno == EINVAL /* seen on FreeBSD 6.4 */
  45                 || errno == 0 /* seen on Solaris 8 */
  46                );
  47       }
  48   }
  49   {
  50     int ret;
  51
  52     close (99);
  53     errno = 0;
  54     ret = grantpt (99);
  55     if (ret != 0)
  56       {
  57         ASSERT (ret == -1);
  58         ASSERT (errno == EBADF
  59                 || errno == EINVAL /* seen on FreeBSD 6.4 */
  60                 || errno == 0 /* seen on Solaris 8 */
  61                );
  62       }
  63   }
  64
  65   return test_exit_status;
  66 }