Commit | Line | Data |
---|---|---|
6a29c58e YQ |
1 | /* stripslash.c -- remove redundant trailing slashes from a file name |
2 | ||
c0c3707f | 3 | Copyright (C) 1990, 2001, 2003-2006, 2009-2019 Free Software Foundation, |
6a29c58e YQ |
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 | |
c0c3707f | 17 | along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
6a29c58e YQ |
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 | } |