misc/init-misc.c

   1 /* Define and initialize `__progname' et. al.
   2    Copyright (C) 1994,1995,1996,1997,1998,2002 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 #include <string.h>
  21 #include <libc-internal.h>
  22
  23 char *__progname_full = (char *) "";
  24 char *__progname = (char *) "";
  25 weak_alias (__progname_full, program_invocation_name)
  26 weak_alias (__progname, program_invocation_short_name)
  27
  28
  29 void
  30 __init_misc (int argc, char **argv, char **envp)
  31 {
  32   if (argv && argv[0])
  33     {
  34       char *p = strrchr (argv[0], '/');
  35       if (p == NULL)
  36         __progname = argv[0];
  37       else
  38         __progname = p + 1;
  39       __progname_full = argv[0];
  40     }
  41 }