1 /* vi: set sw=4 ts=4: */
3 * Mini uptime implementation for busybox
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
7 * Licensed under GPLv2, see file LICENSE in this source tree.
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
16 /* getopt not needed */
18 //usage:#define uptime_trivial_usage
20 //usage:#define uptime_full_usage "\n\n"
21 //usage: "Display the time since the last boot"
23 //usage:#define uptime_example_usage
25 //usage: " 1:55pm up 2:30, load average: 0.09, 0.04, 0.00\n"
29 # include <sys/sysinfo.h>
34 # define FSHIFT 16 /* nr of bits of precision */
36 #define FIXED_1 (1<<FSHIFT) /* 1.0 as fixed-point */
37 #define LOAD_INT(x) ((x) >> FSHIFT)
38 #define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
41 int uptime_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
42 int uptime_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
44 int updays, uphours, upminutes;
46 struct tm *current_time;
50 current_time = localtime(¤t_secs);
54 printf(" %02d:%02d:%02d up ",
55 current_time->tm_hour, current_time->tm_min, current_time->tm_sec);
56 updays = (int) info.uptime / (60*60*24);
58 printf("%d day%s, ", updays, (updays != 1) ? "s" : "");
59 upminutes = (int) info.uptime / 60;
60 uphours = (upminutes / 60) % 24;
63 printf("%2d:%02d, ", uphours, upminutes);
65 printf("%d min, ", upminutes);
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]));