1/* vi: set sw=4 ts=4: */
2/*
3 * runlevel	Prints out the previous and the current runlevel.
4 *
5 * Version:	@(#)runlevel  1.20  16-Apr-1997  MvS
6 *
7 *		This file is part of the sysvinit suite,
8 *		Copyright 1991-1997 Miquel van Smoorenburg.
9 *
10 * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
11 *
12 * initially busyboxified by Bernhard Fischer
13 */
14
15#include <utmp.h>
16#include "libbb.h"
17
18int runlevel_main(int argc, char **argv);
19int runlevel_main(int argc, char **argv)
20{
21	struct utmp *ut;
22	char prev;
23
24	if (argc > 1) utmpname(argv[1]);
25
26	setutent();
27	while ((ut = getutent()) != NULL) {
28		if (ut->ut_type == RUN_LVL) {
29			prev = ut->ut_pid / 256;
30			if (prev == 0) prev = 'N';
31			printf("%c %c\n", prev, ut->ut_pid % 256);
32			if (ENABLE_FEATURE_CLEAN_UP)
33				endutent();
34			return 0;
35		}
36	}
37
38	puts("unknown");
39
40	if (ENABLE_FEATURE_CLEAN_UP)
41		endutent();
42	return 1;
43}
44