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272
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1 /* stripslash.c -- remove redundant trailing slashes from a file name
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2
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3 Copyright (C) 1990, 2001, 2003-2006 Free Software Foundation, Inc.
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4
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5 This program is free software: you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation; either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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17
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18 #include <config.h>
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19
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20 #include "dirname.h"
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21
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22 /* Remove trailing slashes from FILE. Return true if a trailing slash
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23 was removed. This is useful when using file name completion from a
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24 shell that adds a "/" after directory names (such as tcsh and
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25 bash), because on symlinks to directories, several system calls
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26 have different semantics according to whether a trailing slash is
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27 present. */
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28
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29 bool
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30 strip_trailing_slashes (char *file)
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31 {
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32 char *base = last_component (file);
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33 char *base_lim;
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34 bool had_slash;
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35
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36 /* last_component returns "" for file system roots, but we need to turn
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37 `///' into `/'. */
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38 if (! *base)
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39 base = file;
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40 base_lim = base + base_len (base);
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41 had_slash = (*base_lim != '\0');
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42 *base_lim = '\0';
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43 return had_slash;
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44 }
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