sysdeps/unix/sysv/linux/tst-fdopendir-o_path.c

   1 /* Check if fdopendir fails with file descriptor opened with O_PATH (BZ 30737)
   2    Copyright (C) 2023 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <fcntl.h>
  21 #include <dirent.h>
  22 #include <support/check.h>
  23 #include <support/temp_file.h>
  24 #include <support/xunistd.h>
  25
  26 static int
  27 do_test (void)
  28 {
  29   char *dirname = support_create_temp_directory ("tst-fdopendir-o_path");
  30
  31   {
  32     int fd = xopen (dirname, O_RDONLY |  O_DIRECTORY, 0600);
  33     DIR *dir = fdopendir (fd);
  34     TEST_VERIFY_EXIT (dir != NULL);
  35     closedir (dir);
  36   }
  37
  38   {
  39     int fd = xopen (dirname, O_RDONLY | O_PATH | O_DIRECTORY, 0600);
  40     TEST_VERIFY (fdopendir (fd) == NULL);
  41     TEST_COMPARE (errno, EBADF);
  42     xclose (fd);
  43   }
  44
  45   return 0;
  46 }
  47
  48 #include <support/test-driver.c>