Line data    Source code

       1             : /* stripslash.c -- remove redundant trailing slashes from a file name
       2             : 
       3             :    Copyright (C) 1990, 2001, 2003-2006 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 3 of the License, or
       8             :    (at your option) 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, see <http://www.gnu.org/licenses/>.  */
      17             : 
      18             : #include <config.h>
      19             : 
      20             : #include "dirname.h"
      21             : 
      22             : /* Remove trailing slashes from FILE.  Return true if a trailing slash
      23             :    was removed.  This is useful when using file name completion from a
      24             :    shell that adds a "/" after directory names (such as tcsh and
      25             :    bash), because on symlinks to directories, several system calls
      26             :    have different semantics according to whether a trailing slash is
      27             :    present.  */
      28             : 
      29             : bool
      30         113 : strip_trailing_slashes (char *file)
      31             : {
      32         113 :   char *base = last_component (file);
      33             :   char *base_lim;
      34             :   bool had_slash;
      35             : 
      36             :   /* last_component returns "" for file system roots, but we need to turn
      37             :      `///' into `/'.  */
      38         113 :   if (! *base)
      39          19 :     base = file;
      40         113 :   base_lim = base + base_len (base);
      41         113 :   had_slash = (*base_lim != '\0');
      42         113 :   *base_lim = '\0';
      43         113 :   return had_slash;
      44             : }