1 /* stripslash.c -- remove redundant trailing slashes from a file name
2
3 Copyright (C) 1990, 2001, 2003-2006, 2009-2012 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 <http://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
strip_trailing_slashes(char * file)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