43 lines
906 B
C
43 lines
906 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 <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "libbb.h"
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extern char **environ;
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int printenv_main(int argc, char **argv);
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int printenv_main(int argc, char **argv)
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{
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int e = 0;
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/* no variables specified, show whole env */
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if (argc == 1)
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while (environ[e])
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puts(environ[e++]);
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/* search for specified variables and print them out if found */
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else {
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int i;
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size_t l;
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char *arg, *env;
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for (i=1; (arg = argv[i]); ++i)
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for (; (env = environ[e]); ++e) {
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l = strlen(arg);
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if (!strncmp(env, arg, l) && env[l] == '=')
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puts(env + l + 1);
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}
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}
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fflush_stdout_and_exit(0);
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}
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