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[1765] | 1 | /* vi: set sw=4 ts=4: */
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[821] | 2 | /*
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| 3 | * printenv implementation for busybox
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| 4 | *
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| 5 | * Copyright (C) 2005 by Erik Andersen <andersen@codepoet.org>
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| 6 | * Copyright (C) 2005 by Mike Frysinger <vapier@gentoo.org>
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| 7 | *
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[1765] | 8 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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[821] | 9 | */
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| 10 |
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[1765] | 11 | #include "libbb.h"
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| 12 | extern char **environ;
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[821] | 13 |
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[1765] | 14 | int printenv_main(int argc, char **argv);
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[821] | 15 | int printenv_main(int argc, char **argv)
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| 16 | {
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| 17 | /* no variables specified, show whole env */
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[1765] | 18 | if (argc == 1) {
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| 19 | int e = 0;
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[821] | 20 | while (environ[e])
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| 21 | puts(environ[e++]);
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[1765] | 22 | } else {
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| 23 | /* search for specified variables and print them out if found */
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[821] | 24 | char *arg, *env;
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| 25 |
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[1765] | 26 | while ((arg = *++argv) != NULL) {
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| 27 | env = getenv(arg);
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| 28 | if (env)
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| 29 | puts(env);
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| 30 | }
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[821] | 31 | }
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| 32 |
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[1765] | 33 | fflush_stdout_and_exit(0);
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[821] | 34 | }
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