1 /* Define and initialize `__progname' et. al.
2 Copyright (C) 1994-2022 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, see
17 <https://www.gnu.org/licenses/>. */
18
19 #include <string.h>
20 #include <libc-internal.h>
21
22 char *__progname_full = (char *) "";
23 char *__progname = (char *) "";
weak_alias(__progname_full,program_invocation_name)24 weak_alias (__progname_full, program_invocation_name)
25 weak_alias (__progname, program_invocation_short_name)
26
27
28 void
29 __init_misc (int argc, char **argv, char **envp)
30 {
31 if (argv && argv[0])
32 {
33 char *p = strrchr (argv[0], '/');
34 if (p == NULL)
35 __progname = argv[0];
36 else
37 __progname = p + 1;
38 __progname_full = argv[0];
39 }
40 }
41