Line data    Source code

       1             : /* stripslash.c -- remove redundant trailing slashes from a file name
       2             : 
       3             :    Copyright (C) 1990, 2001, 2003-2006, 2009-2016 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
      31           0 : strip_trailing_slashes (char *file)
      32             : {
      33           0 :   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           0 :   if (! *base)
      40           0 :     base = file;
      41           0 :   base_lim = base + base_len (base);
      42           0 :   had_slash = (*base_lim != '\0');
      43           0 :   *base_lim = '\0';
      44           0 :   return had_slash;
      45             : }