blob: 33be5c09601aea7a38c32349d415ba5fd7428734 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
/* vi: set sw=4 ts=4: */
/*
* printenv implementation for busybox
*
* Copyright (C) 2005 by Erik Andersen <andersen@codepoet.org>
* Copyright (C) 2005 by Mike Frysinger <vapier@gentoo.org>
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
#include "libbb.h"
/* This is a NOFORK applet. Be very careful! */
int printenv_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int printenv_main(int argc UNUSED_PARAM, char **argv)
{
int exit_code = EXIT_SUCCESS;
/* no variables specified, show whole env */
if (!argv[1]) {
int e = 0;
while (environ[e])
puts(environ[e++]);
} else {
/* search for specified variables and print them out if found */
char *arg, *env;
while ((arg = *++argv) != NULL) {
env = getenv(arg);
if (env)
puts(env);
else
exit_code = EXIT_FAILURE;
}
}
fflush_stdout_and_exit(exit_code);
}
|
