1/* vi: set sw=4 ts=4: */ 2/* 3 * Mini uptime implementation for busybox 4 * 5 * Copyright (C) 1999,2000,2001 by Lineo, inc. 6 * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 * 22 */ 23 24/* This version of uptime doesn't display the number of users on the system, 25 * since busybox init doesn't mess with utmp. For folks using utmp that are 26 * just dying to have # of users reported, feel free to write it as some type 27 * of BB_FEATURE_UTMP_SUPPORT #define 28 */ 29 30/* getopt not needed */ 31 32 33#include <stdio.h> 34#include <time.h> 35#include <errno.h> 36#include <stdlib.h> 37#include "busybox.h" 38 39static const int FSHIFT = 16; /* nr of bits of precision */ 40#define FIXED_1 (1<<FSHIFT) /* 1.0 as fixed-point */ 41#define LOAD_INT(x) ((x) >> FSHIFT) 42#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100) 43 44 45extern int uptime_main(int argc, char **argv) 46{ 47 int updays, uphours, upminutes; 48 struct sysinfo info; 49 struct tm *current_time; 50 time_t current_secs; 51 52 time(¤t_secs); 53 current_time = localtime(¤t_secs); 54 55 sysinfo(&info); 56 57 printf(" %2d:%02d%s up ", 58 current_time->tm_hour%12 ? current_time->tm_hour%12 : 12, 59 current_time->tm_min, current_time->tm_hour > 11 ? "pm" : "am"); 60 updays = (int) info.uptime / (60*60*24); 61 if (updays) 62 printf("%d day%s, ", updays, (updays != 1) ? "s" : ""); 63 upminutes = (int) info.uptime / 60; 64 uphours = (upminutes / 60) % 24; 65 upminutes %= 60; 66 if(uphours) 67 printf("%2d:%02d, ", uphours, upminutes); 68 else 69 printf("%d min, ", upminutes); 70 71 printf("load average: %ld.%02ld, %ld.%02ld, %ld.%02ld\n", 72 LOAD_INT(info.loads[0]), LOAD_FRAC(info.loads[0]), 73 LOAD_INT(info.loads[1]), LOAD_FRAC(info.loads[1]), 74 LOAD_INT(info.loads[2]), LOAD_FRAC(info.loads[2])); 75 76 return EXIT_SUCCESS; 77} 78