sysdeps/unix/sysv/linux/tst-fanotify.c

   1 /* Basic fanotify test.
   2    Copyright (C) 2013-2015 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    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <config.h>
  20 #include <errno.h>
  21 #include <fcntl.h>
  22 #include <stdio.h>
  23
  24 #ifndef HAVE_LINUX_FANOTIFY_H
  25
  26 static int
  27 do_test (void)
  28 {
  29   puts ("SKIP: missing support for fanotify due to old kernel headers");
  30   return 0;
  31 }
  32
  33 #else
  34
  35 #include <sys/fanotify.h>
  36
  37 static int
  38 do_test (void)
  39 {
  40   int fd, ret;
  41
  42   fd = fanotify_init (0, 0);
  43   if (fd < 0)
  44     {
  45       switch (errno)
  46         {
  47         case ENOSYS:
  48           puts ("SKIP: missing support for fanotify (check CONFIG_FANOTIFY=y)");
  49           return 0;
  50         case EPERM:
  51           puts ("SKIP: missing proper permissions for runtime test");
  52           return 0;
  53         }
  54
  55       perror ("fanotify_init (0, 0) failed");
  56       return 1;
  57     }
  58
  59   ret = fanotify_mark (fd, FAN_MARK_ADD | FAN_MARK_MOUNT, FAN_ACCESS
  60                        | FAN_MODIFY | FAN_OPEN | FAN_CLOSE | FAN_ONDIR
  61                        | FAN_EVENT_ON_CHILD, AT_FDCWD, ".");
  62   if (ret)
  63     {
  64       perror ("fanotify_mark (...) failed");
  65       return 1;
  66     }
  67
  68   puts ("All OK");
  69   return 0;
  70 }
  71
  72 #endif
  73
  74 #define TEST_FUNCTION do_test ()
  75 #include "../test-skeleton.c"