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 20#ifndef FSHIFT 21# define FSHIFT 16 /* nr of bits of precision */ 22#endif 23#define FIXED_1 (1<<FSHIFT) /* 1.0 as fixed-point */ 24#define LOAD_INT(x) ((x) >> FSHIFT) 25#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100) 26 27 28int uptime_main(int argc, char **argv); 29int uptime_main(int argc, char **argv) 30{ 31 int updays, uphours, upminutes; 32 struct sysinfo info; 33 struct tm *current_time; 34 time_t current_secs; 35 36 time(¤t_secs); 37 current_time = localtime(¤t_secs); 38 39 sysinfo(&info); 40 41 printf(" %02d:%02d:%02d up ", 42 current_time->tm_hour, current_time->tm_min, current_time->tm_sec); 43 updays = (int) info.uptime / (60*60*24); 44 if (updays) 45 printf("%d day%s, ", updays, (updays != 1) ? "s" : ""); 46 upminutes = (int) info.uptime / 60; 47 uphours = (upminutes / 60) % 24; 48 upminutes %= 60; 49 if (uphours) 50 printf("%2d:%02d, ", uphours, upminutes); 51 else 52 printf("%d min, ", upminutes); 53 54 printf("load average: %ld.%02ld, %ld.%02ld, %ld.%02ld\n", 55 LOAD_INT(info.loads[0]), LOAD_FRAC(info.loads[0]), 56 LOAD_INT(info.loads[1]), LOAD_FRAC(info.loads[1]), 57 LOAD_INT(info.loads[2]), LOAD_FRAC(info.loads[2])); 58 59 return EXIT_SUCCESS; 60} 61