lib/basename.c

   1 /* basename.c -- return the last element in a path
   2    Copyright (C) 1990, 1998 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 #ifndef FILESYSTEM_PREFIX_LEN
  23 # define FILESYSTEM_PREFIX_LEN(Filename) 0
  24 #endif
  25
  26 #ifndef ISSLASH
  27 # define ISSLASH(C) ((C) == '/')
  28 #endif
  29
  30 /* In general, we can't use the builtin `basename' function if available,
  31    since it has different meanings in different environments.
  32    In some environments the builtin `basename' modifies its argument.  */
  33
  34 char *
  35 base_name (char const *name)
  36 {
  37   char const *base = name += FILESYSTEM_PREFIX_LEN (name);
  38
  39   for (; *name; name++)
  40     if (ISSLASH (*name))
  41       base = name + 1;
  42
  43   return (char *) base;
  44 }