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glibc  2.9
init-misc.c
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00001 /* Define and initialize `__progname' et. al.
00002    Copyright (C) 1994,1995,1996,1997,1998,2002 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <string.h>
00021 #include <libc-internal.h>
00022 
00023 char *__progname_full = (char *) "";
00024 char *__progname = (char *) "";
00025 weak_alias (__progname_full, program_invocation_name)
00026 weak_alias (__progname, program_invocation_short_name)
00027 
00028 
00029 void
00030 __init_misc (int argc, char **argv, char **envp)
00031 {
00032   if (argv && argv[0])
00033     {
00034       char *p = strrchr (argv[0], '/');
00035       if (p == NULL)
00036        __progname = argv[0];
00037       else
00038        __progname = p + 1;
00039       __progname_full = argv[0];
00040     }
00041 }