blob: 46797adb722d66b28e2e70425cd91e952c4ee1a9 [file] [log] [blame]
Erik Andersen65fc1c72000-03-05 08:16:03 +00001/* vi: set sw=4 ts=4: */
2/*
3 * Mini uptime implementation for busybox
4 *
5 * Copyright (C) 1999 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_UMTP_SUPPORT #define
28 */
29
30
31#include "internal.h"
32#include <stdio.h>
33#include <time.h>
34#include <sys/sysinfo.h>
35
36#define FSHIFT 16 /* nr of bits of precision */
37#define FIXED_1 (1<<FSHIFT) /* 1.0 as fixed-point */
38#define LOAD_INT(x) ((x) >> FSHIFT)
39#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
40
41extern int uptime_main(int argc, char **argv)
42{
43 int updays, uphours, upminutes;
44 struct sysinfo info;
45 struct tm *current_time;
46 time_t current_secs;
47
48 time(&current_secs);
49 current_time = localtime(&current_secs);
50
51 sysinfo(&info);
52
53 fprintf(stdout, " %2d:%02d%s up ",
54 current_time->tm_hour%12 ? current_time->tm_hour%12 : 12,
55 current_time->tm_min, current_time->tm_hour > 11 ? "pm" : "am");
56 updays = (int) info.uptime / (60*60*24);
57 if (updays)
58 fprintf(stdout, "%d day%s, ", updays, (updays != 1) ? "s" : "");
59 upminutes = (int) info.uptime / 60;
60 uphours = (upminutes / 60) % 24;
61 upminutes %= 60;
62 if(uphours)
63 fprintf(stdout, "%2d:%02d, ", uphours, upminutes);
64 else
65 fprintf(stdout, "%d min, ", upminutes);
66
67 printf("load average: %ld.%02ld, %ld.%02ld, %ld.%02ld\n",
68 LOAD_INT(info.loads[0]), LOAD_FRAC(info.loads[0]),
69 LOAD_INT(info.loads[1]), LOAD_FRAC(info.loads[1]),
70 LOAD_INT(info.loads[2]), LOAD_FRAC(info.loads[2]));
71
72 exit(TRUE);
73}