gnulib/import/rmdir.c

   1 /* Work around rmdir bugs.
   2
   3    Copyright (C) 1988, 1990, 1999, 2003-2006, 2009-2019 Free Software
   4    Foundation, Inc.
   5
   6    This program is free software: you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  18
  19 #include <config.h>
  20
  21 #include <unistd.h>
  22
  23 #include <errno.h>
  24 #include <string.h>
  25
  26 #include "dosname.h"
  27
  28 #undef rmdir
  29
  30 /* Remove directory DIR.
  31    Return 0 if successful, -1 if not.  */
  32
  33 int
  34 rpl_rmdir (char const *dir)
  35 {
  36   /* Work around cygwin 1.5.x bug where rmdir("dir/./") succeeds.  */
  37   size_t len = strlen (dir);
  38   int result;
  39   while (len && ISSLASH (dir[len - 1]))
  40     len--;
  41   if (len && dir[len - 1] == '.' && (1 == len || ISSLASH (dir[len - 2])))
  42     {
  43       errno = EINVAL;
  44       return -1;
  45     }
  46   result = rmdir (dir);
  47   /* Work around mingw bug, where rmdir("file/") fails with EINVAL
  48      instead of ENOTDIR.  We've already filtered out trailing ., the
  49      only reason allowed by POSIX for EINVAL.  */
  50   if (result == -1 && errno == EINVAL)
  51     errno = ENOTDIR;
  52   return result;
  53 }