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