/* Program name management.
  Copyright (C) 2001-2003, 2005-2006 Free Software Foundation, Inc.
  Written by Bruno Haible <[email protected]>, 2001.

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2, or (at your option)
  any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software Foundation,
  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */


#include <config.h>

/* Specification.  */
#undef ENABLE_RELOCATABLE /* avoid defining set_program_name as a macro */
#include "progname.h"

#include <string.h>


/* String containing name the program is called with.
  To be initialized by main().  */
const char *program_name = NULL;

/* Set program_name, based on argv[0].  */
void
set_program_name (const char *argv0)
{
 /* libtool creates a temporary executable whose name is sometimes prefixed
    with "lt-" (depends on the platform).  It also makes argv[0] absolute.
    Remove this "<dirname>/.libs/" or "<dirname>/.libs/lt-" prefix here.  */
 const char *slash;
 const char *base;

 slash = strrchr (argv0, '/');
 base = (slash != NULL ? slash + 1 : argv0);
 if (base - argv0 >= 7 && memcmp (base - 7, "/.libs/", 7) == 0)
   argv0 = base;
 if (strncmp (base, "lt-", 3) == 0)
   argv0 = base + 3;
 program_name = argv0;
}