source: MondoRescue/branches/2.2.5/mindi-busybox/shell/ash_test/printenv.c @ 1765

Last change on this file since 1765 was 1765, checked in by Bruno Cornec, 12 years ago

Update to busybox 1.7.2

  • Property svn:eol-style set to native
File size: 1.5 KB
Line 
1/* printenv -- minimal clone of BSD printenv(1).
2
3   usage: printenv [varname]
4
5   Chet Ramey
6   chet@po.cwru.edu
7*/
8
9/* Copyright (C) 1997-2002 Free Software Foundation, Inc.
10
11   This file is part of GNU Bash, the Bourne Again SHell.
12
13   Bash is free software; you can redistribute it and/or modify it under
14   the terms of the GNU General Public License as published by the Free
15   Software Foundation; either version 2, or (at your option) any later
16   version.
17
18   Bash is distributed in the hope that it will be useful, but WITHOUT ANY
19   WARRANTY; without even the implied warranty of MERCHANTABILITY or
20   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
21   for more details.
22
23   You should have received a copy of the GNU General Public License along
24   with Bash; see the file COPYING.  If not, write to the Free Software
25   Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
26
27#include <stdlib.h>
28#include <string.h>
29
30extern char **environ;
31
32int
33main (argc, argv)
34     int argc;
35     char **argv;
36{
37  register char **envp, *eval;
38  int len;
39
40  argv++;
41  argc--;
42
43  /* printenv */
44  if (argc == 0)
45    {
46      for (envp = environ; *envp; envp++)
47    puts (*envp);
48      exit (0);
49    }
50
51  /* printenv varname */
52  len = strlen (*argv);
53  for (envp = environ; *envp; envp++)
54    {
55      if (**argv == **envp && strncmp (*envp, *argv, len) == 0)
56    {
57      eval = *envp + len;
58      /* If the environment variable doesn't have an `=', ignore it. */
59      if (*eval == '=')
60        {
61          puts (eval + 1);
62          exit (0);
63        }
64    }
65    }
66  exit (1);
67}
Note: See TracBrowser for help on using the repository browser.