sysdeps/posix/remove.c

   1 /* ANSI C `remove' function to delete a file or directory.  POSIX.1 version.
   2    Copyright (C) 1995-2014 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 <errno.h>
  20 #include <stdio.h>
  21 #include <unistd.h>
  22
  23
  24 #ifndef IS_NO_DIRECTORY_ERROR
  25 # define IS_NO_DIRECTORY_ERROR errno != EPERM
  26 #endif
  27
  28
  29 int
  30 remove (file)
  31      const char *file;
  32 {
  33   /* First try to unlink since this is more frequently the necessary action. */
  34   if (__unlink (file) != 0
  35       /* If it is indeed a directory...  */
  36       && (IS_NO_DIRECTORY_ERROR
  37           /* ...try to remove it.  */
  38           || __rmdir (file) != 0))
  39     /* Cannot remove the object for whatever reason.  */
  40     return -1;
  41
  42   return 0;
  43 }
  44 libc_hidden_def (remove)