busybox/miscutils/runlevel.c

/* vi: set sw=4 ts=4: */
/*
 * runlevel	Prints out the previous and the current runlevel.
 *
 * Version:	@(#)runlevel  1.20  16-Apr-1997  MvS
 *
 *		This file is part of the sysvinit suite,
 *		Copyright 1991-1997 Miquel van Smoorenburg.
 *
 * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
 *
 * initially busyboxified by Bernhard Reutner-Fischer
 */

#include <utmp.h>
#include "libbb.h"

int runlevel_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int runlevel_main(int argc, char **argv)
{
	struct utmp *ut;
	char prev;

	if (argc > 1) utmpname(argv[1]);

	setutent();
	while ((ut = getutent()) != NULL) {
		if (ut->ut_type == RUN_LVL) {
			prev = ut->ut_pid / 256;
			if (prev == 0) prev = 'N';
			printf("%c %c\n", prev, ut->ut_pid % 256);
			if (ENABLE_FEATURE_CLEAN_UP)
				endutent();
			return 0;
		}
	}

	puts("unknown");

	if (ENABLE_FEATURE_CLEAN_UP)
		endutent();
	return 1;
}
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 Reutner-Fischer
13	*/
14
15	#include <utmp.h>
16	#include "libbb.h"
17
18	int runlevel_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
19	int 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	}