38 lines
841 B
C
38 lines
841 B
C
/* vi: set sw=4 ts=4: */
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/*
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* printenv implementation for busybox
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*
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* Copyright (C) 2005 by Erik Andersen <andersen@codepoet.org>
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* Copyright (C) 2005 by Mike Frysinger <vapier@gentoo.org>
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
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#include "libbb.h"
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int printenv_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int printenv_main(int argc UNUSED_PARAM, char **argv)
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{
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int exit_code = EXIT_SUCCESS;
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/* no variables specified, show whole env */
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if (!argv[1]) {
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int e = 0;
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while (environ[e])
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puts(environ[e++]);
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} else {
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/* search for specified variables and print them out if found */
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char *arg, *env;
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while ((arg = *++argv) != NULL) {
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env = getenv(arg);
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if (env)
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puts(env);
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else
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exit_code = EXIT_FAILURE;
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}
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}
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fflush_stdout_and_exit(exit_code);
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}
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