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-rw-r--r--procps/uptime.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/procps/uptime.c b/procps/uptime.c
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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 "busybox.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)
29{
30 int updays, uphours, upminutes;
31 struct sysinfo info;
32 struct tm *current_time;
33 time_t current_secs;
34
35 time(&current_secs);
36 current_time = localtime(&current_secs);
37
38 sysinfo(&info);
39
40 printf(" %02d:%02d:%02d up ",
41 current_time->tm_hour, current_time->tm_min, current_time->tm_sec);
42 updays = (int) info.uptime / (60*60*24);
43 if (updays)
44 printf("%d day%s, ", updays, (updays != 1) ? "s" : "");
45 upminutes = (int) info.uptime / 60;
46 uphours = (upminutes / 60) % 24;
47 upminutes %= 60;
48 if(uphours)
49 printf("%2d:%02d, ", uphours, upminutes);
50 else
51 printf("%d min, ", upminutes);
52
53 printf("load average: %ld.%02ld, %ld.%02ld, %ld.%02ld\n",
54 LOAD_INT(info.loads[0]), LOAD_FRAC(info.loads[0]),
55 LOAD_INT(info.loads[1]), LOAD_FRAC(info.loads[1]),
56 LOAD_INT(info.loads[2]), LOAD_FRAC(info.loads[2]));
57
58 return EXIT_SUCCESS;
59}