external/gpl2/xcvs/dist/lib/stripslash.c

   1 /* stripslash.c -- remove redundant trailing slashes from a file name
   2
   3    Copyright (C) 1990, 2001, 2003, 2004, 2005 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 2, or (at your option)
   8    any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software Foundation,
  17    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  18
  19 #ifdef HAVE_CONFIG_H
  20 # include <config.h>
  21 #endif
  22
  23 #include "dirname.h"
  24
  25 /* Remove trailing slashes from FILE.
  26    Return true if a trailing slash was removed.
  27    This is useful when using file name completion from a shell that
  28    adds a "/" after directory names (such as tcsh and bash), because
  29    the Unix rename and rmdir system calls return an "Invalid argument" error
  30    when given a file that ends in "/" (except for the root directory).  */
  31
  32 bool
  33 strip_trailing_slashes (char *file)
  34 {
  35   char *base = base_name (file);
  36   char *base_lim = base + base_len (base);
  37   bool had_slash = (*base_lim != '\0');
  38   *base_lim = '\0';
  39   return had_slash;
  40 }