1 | /* stripslash.c -- remove redundant trailing slashes from a file name |
2 | |
3 | Copyright (C) 1990, 2001, 2003-2006, 2009-2019 Free Software Foundation, |
4 | 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 "dirname.h" |
22 | |
23 | /* Remove trailing slashes from FILE. Return true if a trailing slash |
24 | was removed. This is useful when using file name completion from a |
25 | shell that adds a "/" after directory names (such as tcsh and |
26 | bash), because on symlinks to directories, several system calls |
27 | have different semantics according to whether a trailing slash is |
28 | present. */ |
29 | |
30 | bool |
31 | strip_trailing_slashes (char *file) |
32 | { |
33 | char *base = last_component (file); |
34 | char *base_lim; |
35 | bool had_slash; |
36 | |
37 | /* last_component returns "" for file system roots, but we need to turn |
38 | "///" into "/". */ |
39 | if (! *base) |
40 | base = file; |
41 | base_lim = base + base_len (base); |
42 | had_slash = (*base_lim != '\0'); |
43 | *base_lim = '\0'; |
44 | return had_slash; |
45 | } |
46 | |