glibc/misc/init-misc.c

/* Define and initialize `__progname' et. al.
   Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

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

   The GNU C Library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#include <string.h>
#include <errno.h>

char *__progname_full = (char *) "";
char *__progname = (char *) "";
weak_alias (__progname_full, program_invocation_name)
weak_alias (__progname, program_invocation_short_name)


static void __init_misc (int argc, char **argv, char **envp)
  __attribute__ ((unused));


static void
__init_misc (int argc, char **argv, char **envp)
{
  if (argv && argv[0])
    {
      char *p = strrchr (argv[0], '/');
      if (p == NULL)
	__progname = argv[0];
      else
	__progname = p + 1;
      __progname_full = argv[0];
    }
}

#ifdef HAVE_GNU_LD
text_set_element (__libc_subinit, __init_misc);
#endif