Contents of /tags/mkinitrd-6_1_5/busybox/coreutils/printenv.c
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Wed Aug 5 17:52:52 2009 UTC (15 years, 1 month ago) by niro
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Wed Aug 5 17:52:52 2009 UTC (15 years, 1 month ago) by niro
File MIME type: text/plain
File size: 774 byte(s)
tagged 'mkinitrd-6_1_5'
1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
3 | * printenv implementation for busybox |
4 | * |
5 | * Copyright (C) 2005 by Erik Andersen <andersen@codepoet.org> |
6 | * Copyright (C) 2005 by Mike Frysinger <vapier@gentoo.org> |
7 | * |
8 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
9 | */ |
10 | |
11 | #include "libbb.h" |
12 | |
13 | int printenv_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
14 | int printenv_main(int argc UNUSED_PARAM, char **argv) |
15 | { |
16 | /* no variables specified, show whole env */ |
17 | if (!argv[1]) { |
18 | int e = 0; |
19 | while (environ[e]) |
20 | puts(environ[e++]); |
21 | } else { |
22 | /* search for specified variables and print them out if found */ |
23 | char *arg, *env; |
24 | |
25 | while ((arg = *++argv) != NULL) { |
26 | env = getenv(arg); |
27 | if (env) |
28 | puts(env); |
29 | } |
30 | } |
31 | |
32 | fflush_stdout_and_exit(EXIT_SUCCESS); |
33 | } |