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/* Work around rmdir bugs.

   Copyright (C) 1988, 1990, 1999, 2003-2006, 2009-2013 Free Software
   Foundation, Inc.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#include <config.h>

#include <unistd.h>

#include <errno.h>
#include <string.h>

#include "dosname.h"

#undef rmdir

/* Remove directory DIR.
   Return 0 if successful, -1 if not.  */

int
rpl_rmdir (char const *dir)
{
  /* Work around cygwin 1.5.x bug where rmdir("dir/./") succeeds.  */
  size_t len = strlen (dir);
  int result;
  while (len && ISSLASH (dir[len - 1]))
    len--;
  if (len && dir[len - 1] == '.' && (1 == len || ISSLASH (dir[len - 2])))
    {
      errno = EINVAL;
      return -1;
    }
  result = rmdir (dir);
  /* Work around mingw bug, where rmdir("file/") fails with EINVAL
     instead of ENOTDIR.  We've already filtered out trailing ., the
     only reason allowed by POSIX for EINVAL.  */
  if (result == -1 && errno == EINVAL)
    errno = ENOTDIR;
  return result;
}