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https://github.com/topjohnwu/ndk-busybox.git
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76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Mini uptime implementation for busybox
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*
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* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/* This version of uptime doesn't display the number of users on the system,
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* since busybox init doesn't mess with utmp. For folks using utmp that are
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* just dying to have # of users reported, feel free to write it as some type
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* of CONFIG_FEATURE_UTMP_SUPPORT #define
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*/
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/* getopt not needed */
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#include <stdio.h>
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#include <time.h>
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#include <errno.h>
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#include <stdlib.h>
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#include "busybox.h"
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static const int FSHIFT = 16; /* nr of bits of precision */
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#define FIXED_1 (1<<FSHIFT) /* 1.0 as fixed-point */
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#define LOAD_INT(x) ((x) >> FSHIFT)
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#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
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extern int uptime_main(int argc, char **argv)
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{
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int updays, uphours, upminutes;
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struct sysinfo info;
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struct tm *current_time;
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time_t current_secs;
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time(¤t_secs);
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current_time = localtime(¤t_secs);
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sysinfo(&info);
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printf(" %02d:%02d:%02d up ",
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current_time->tm_hour, current_time->tm_min, current_time->tm_sec);
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updays = (int) info.uptime / (60*60*24);
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if (updays)
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printf("%d day%s, ", updays, (updays != 1) ? "s" : "");
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upminutes = (int) info.uptime / 60;
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uphours = (upminutes / 60) % 24;
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upminutes %= 60;
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if(uphours)
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printf("%2d:%02d, ", uphours, upminutes);
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else
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printf("%d min, ", upminutes);
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printf("load average: %ld.%02ld, %ld.%02ld, %ld.%02ld\n",
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LOAD_INT(info.loads[0]), LOAD_FRAC(info.loads[0]),
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LOAD_INT(info.loads[1]), LOAD_FRAC(info.loads[1]),
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LOAD_INT(info.loads[2]), LOAD_FRAC(info.loads[2]));
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return EXIT_SUCCESS;
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}
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