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