busybox/procps/uptime.c

/* vi: set sw=4 ts=4: */
/*
 * Mini uptime implementation for busybox
 *
 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
 *
 * Licensed under the GPL version 2, see the file LICENSE in this tarball.
 */

/* This version of uptime doesn't display the number of users on the system,
 * since busybox init doesn't mess with utmp.  For folks using utmp that are
 * just dying to have # of users reported, feel free to write it as some type
 * of CONFIG_FEATURE_UTMP_SUPPORT #define
 */

/* getopt not needed */

#include "libbb.h"
#include <sys/sysinfo.h>

#ifndef FSHIFT
# define FSHIFT 16              /* nr of bits of precision */
#endif
#define FIXED_1         (1<<FSHIFT)     /* 1.0 as fixed-point */
#define LOAD_INT(x) ((x) >> FSHIFT)
#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)


int uptime_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int uptime_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
{
	int updays, uphours, upminutes;
	struct sysinfo info;
	struct tm *current_time;
	time_t current_secs;

	time(&current_secs);
	current_time = localtime(&current_secs);

	sysinfo(&info);

	printf(" %02d:%02d:%02d up ",
			current_time->tm_hour, current_time->tm_min, current_time->tm_sec);
	updays = (int) info.uptime / (60*60*24);
	if (updays)
		printf("%d day%s, ", updays, (updays != 1) ? "s" : "");
	upminutes = (int) info.uptime / 60;
	uphours = (upminutes / 60) % 24;
	upminutes %= 60;
	if (uphours)
		printf("%2d:%02d, ", uphours, upminutes);
	else
		printf("%d min, ", upminutes);

	printf("load average: %ld.%02ld, %ld.%02ld, %ld.%02ld\n",
			LOAD_INT(info.loads[0]), LOAD_FRAC(info.loads[0]),
			LOAD_INT(info.loads[1]), LOAD_FRAC(info.loads[1]),
			LOAD_INT(info.loads[2]), LOAD_FRAC(info.loads[2]));

	return EXIT_SUCCESS;
}
1	/* vi: set sw=4 ts=4: */
2	/*
3	* Mini uptime implementation for busybox
4	*
5	* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
6	*
7	* Licensed under the GPL version 2, see the file LICENSE in this tarball.
8	*/
9
10	/* This version of uptime doesn't display the number of users on the system,
11	* since busybox init doesn't mess with utmp. For folks using utmp that are
12	* just dying to have # of users reported, feel free to write it as some type
13	* of CONFIG_FEATURE_UTMP_SUPPORT #define
14	*/
15
16	/* getopt not needed */
17
18	#include "libbb.h"
19	#include <sys/sysinfo.h>
20
21	#ifndef FSHIFT
22	# define FSHIFT 16 /* nr of bits of precision */
23	#endif
24	#define FIXED_1 (1<<FSHIFT) /* 1.0 as fixed-point */
25	#define LOAD_INT(x) ((x) >> FSHIFT)
26	#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
27
28
29	int uptime_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
30	int uptime_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
31	{
32	int updays, uphours, upminutes;
33	struct sysinfo info;
34	struct tm *current_time;
35	time_t current_secs;
36
37	time(&current_secs);
38	current_time = localtime(&current_secs);
39
40	sysinfo(&info);
41
42	printf(" %02d:%02d:%02d up ",
43	current_time->tm_hour, current_time->tm_min, current_time->tm_sec);
44	updays = (int) info.uptime / (606024);
45	if (updays)
46	printf("%d day%s, ", updays, (updays != 1) ? "s" : "");
47	upminutes = (int) info.uptime / 60;
48	uphours = (upminutes / 60) % 24;
49	upminutes %= 60;
50	if (uphours)
51	printf("%2d:%02d, ", uphours, upminutes);
52	else
53	printf("%d min, ", upminutes);
54
55	printf("load average: %ld.%02ld, %ld.%02ld, %ld.%02ld\n",
56	LOAD_INT(info.loads[0]), LOAD_FRAC(info.loads[0]),
57	LOAD_INT(info.loads[1]), LOAD_FRAC(info.loads[1]),
58	LOAD_INT(info.loads[2]), LOAD_FRAC(info.loads[2]));
59
60	return EXIT_SUCCESS;
61	}