1 /* Work around rmdir bugs.
2 
3    Copyright (C) 1988, 1990, 1999, 2003-2006, 2009-2021 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 Lesser 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 Lesser General Public License for more details.
15 
16    You should have received a copy of the GNU Lesser 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 "filename.h"
27 
28 #undef rmdir
29 #if defined _WIN32 && !defined __CYGWIN__
30 # define rmdir _rmdir
31 #endif
32 
33 /* Remove directory DIR.
34    Return 0 if successful, -1 if not.  */
35 
36 int
rpl_rmdir(char const * dir)37 rpl_rmdir (char const *dir)
38 {
39   /* Work around cygwin 1.5.x bug where rmdir("dir/./") succeeds.  */
40   size_t len = strlen (dir);
41   int result;
42   while (len && ISSLASH (dir[len - 1]))
43     len--;
44   if (len && dir[len - 1] == '.' && (1 == len || ISSLASH (dir[len - 2])))
45     {
46       errno = EINVAL;
47       return -1;
48     }
49   result = rmdir (dir);
50   /* Work around mingw bug, where rmdir("file/") fails with EINVAL
51      instead of ENOTDIR.  We've already filtered out trailing ., the
52      only reason allowed by POSIX for EINVAL.  */
53   if (result == -1 && errno == EINVAL)
54     errno = ENOTDIR;
55   return result;
56 }
57