busybox

/* vi: set sw=4 ts=4: */

/*

 * Mini uptime implementation for busybox

 *

 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>

 *

 * Licensed under GPLv2, see file LICENSE in this source tree.

 */

​

/* 2011     Pere Orga <gotrunks@gmail.com>

 *

 * Added FEATURE_UPTIME_UTMP_SUPPORT flag.

 */

​

/* getopt not needed */

​

//config:config UPTIME

//config:   bool "uptime"

//config:   default y

//config:   select PLATFORM_LINUX #sysinfo()

//config:   help

//config:     uptime gives a one line display of the current time, how long

//config:     the system has been running, how many users are currently logged

//config:     on, and the system load averages for the past 1, 5, and 15 minutes.

//config:

//config:config FEATURE_UPTIME_UTMP_SUPPORT

//config:   bool "Support for showing the number of users"

//config:   default y

//config:   depends on UPTIME && FEATURE_UTMP

//config:   help

//config:     Makes uptime display the number of users currently logged on.

​

//usage:#define uptime_trivial_usage

//usage:       ""

//usage:#define uptime_full_usage "\n\n"

//usage:       "Display the time since the last boot"

//usage:

//usage:#define uptime_example_usage

//usage:       "$ uptime\n"

//usage:       "  1:55pm  up  2:30, load average: 0.09, 0.04, 0.00\n"

​

#include "libbb.h"

#ifdef __linux__

# include <sys/sysinfo.h>

#endif

​

​

#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)  (unsigned)((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)

{

    unsigned updays, uphours, upminutes;

    struct sysinfo info;

    struct tm *current_time;

    time_t current_secs;

​