| 1 | /* stripslash.c -- remove redundant trailing slashes from a file name |
| 2 | |
| 3 | Copyright (C) 1990, 2001, 2003-2006, 2009-2020 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 | } |