string/basename.c

   1 /* Return the name-within-directory of a file name.
   2    Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library 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 GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 # include <config.h>
  22 #endif
  23
  24 #include <string.h>
  25
  26 #ifndef _LIBC
  27 /* We cannot generally use the name `basename' since XPG defines an unusable
  28    variant of the function but we cannot use it.  */
  29 # define basename gnu_basename
  30 #endif
  31
  32
  33 char *
  34 basename (filename)
  35      const char *filename;
  36 {
  37   char *p = strrchr (filename, '/');
  38   return p ? p + 1 : (char *) filename;
  39 }