lib/stripslash.c

   1 /* stripslash.c -- remove trailing slashes from a string
   2    Copyright (C) 1990 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2, or (at your option)
   7    any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software Foundation,
  16    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  17
  18 #if HAVE_CONFIG_H
  19 # include <config.h>
  20 #endif
  21
  22 #if STDC_HEADERS || HAVE_STRING_H
  23 # include <string.h>
  24 #else
  25 # include <strings.h>
  26 #endif
  27
  28 #ifndef ISSLASH
  29 # define ISSLASH(C) ((C) == '/')
  30 #endif
  31
  32 /* Remove trailing slashes from PATH.
  33    This is useful when using filename completion from a shell that
  34    adds a "/" after directory names (such as tcsh and bash), because
  35    the Unix rename and rmdir system calls return an "Invalid argument" error
  36    when given a path that ends in "/" (except for the root directory).  */
  37
  38 void
  39 strip_trailing_slashes (char *path)
  40 {
  41   int last;
  42
  43   last = strlen (path) - 1;
  44   while (0 < last && ISSLASH (path[last]))
  45     path[last--] = '\0';
  46 }