[821] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Mini uptime implementation for busybox
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| 4 | *
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| 5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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| 6 | *
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[2725] | 7 | * Licensed under GPLv2, see file LICENSE in this source tree.
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[821] | 8 | */
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| 9 |
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[3232] | 10 | /* 2011 Pere Orga <gotrunks@gmail.com>
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| 11 | *
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| 12 | * Added FEATURE_UPTIME_UTMP_SUPPORT flag.
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[821] | 13 | */
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| 14 |
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| 15 | /* getopt not needed */
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| 16 |
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[3232] | 17 | //config:config UPTIME
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| 18 | //config: bool "uptime"
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| 19 | //config: default y
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| 20 | //config: select PLATFORM_LINUX #sysinfo()
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| 21 | //config: help
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| 22 | //config: uptime gives a one line display of the current time, how long
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| 23 | //config: the system has been running, how many users are currently logged
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| 24 | //config: on, and the system load averages for the past 1, 5, and 15 minutes.
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| 25 | //config:
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| 26 | //config:config FEATURE_UPTIME_UTMP_SUPPORT
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| 27 | //config: bool "Support for showing the number of users"
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| 28 | //config: default y
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| 29 | //config: depends on UPTIME && FEATURE_UTMP
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| 30 | //config: help
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| 31 | //config: Makes uptime display the number of users currently logged on.
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| 32 |
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| 33 | //usage:#define uptime_trivial_usage
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| 34 | //usage: ""
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| 35 | //usage:#define uptime_full_usage "\n\n"
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| 36 | //usage: "Display the time since the last boot"
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| 37 | //usage:
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| 38 | //usage:#define uptime_example_usage
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| 39 | //usage: "$ uptime\n"
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| 40 | //usage: " 1:55pm up 2:30, load average: 0.09, 0.04, 0.00\n"
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| 41 |
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[1765] | 42 | #include "libbb.h"
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[3232] | 43 | #ifdef __linux__
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| 44 | # include <sys/sysinfo.h>
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| 45 | #endif
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[821] | 46 |
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[3232] | 47 |
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[821] | 48 | #ifndef FSHIFT
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| 49 | # define FSHIFT 16 /* nr of bits of precision */
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| 50 | #endif
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[3232] | 51 | #define FIXED_1 (1 << FSHIFT) /* 1.0 as fixed-point */
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| 52 | #define LOAD_INT(x) (unsigned)((x) >> FSHIFT)
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| 53 | #define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1 - 1)) * 100)
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[821] | 54 |
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| 55 |
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[2725] | 56 | int uptime_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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| 57 | int uptime_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
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[821] | 58 | {
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[3232] | 59 | unsigned updays, uphours, upminutes;
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[821] | 60 | struct sysinfo info;
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| 61 | struct tm *current_time;
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| 62 | time_t current_secs;
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| 63 |
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| 64 | time(¤t_secs);
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| 65 | current_time = localtime(¤t_secs);
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| 66 |
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| 67 | sysinfo(&info);
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| 68 |
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[3232] | 69 | printf(" %02u:%02u:%02u up ",
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[821] | 70 | current_time->tm_hour, current_time->tm_min, current_time->tm_sec);
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[3232] | 71 | updays = (unsigned) info.uptime / (unsigned)(60*60*24);
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[821] | 72 | if (updays)
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[3232] | 73 | printf("%u day%s, ", updays, (updays != 1) ? "s" : "");
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| 74 | upminutes = (unsigned) info.uptime / (unsigned)60;
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| 75 | uphours = (upminutes / (unsigned)60) % (unsigned)24;
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[821] | 76 | upminutes %= 60;
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[1765] | 77 | if (uphours)
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[3232] | 78 | printf("%2u:%02u", uphours, upminutes);
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[821] | 79 | else
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[3232] | 80 | printf("%u min", upminutes);
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[821] | 81 |
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[3232] | 82 | #if ENABLE_FEATURE_UPTIME_UTMP_SUPPORT
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| 83 | {
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| 84 | struct utmp *ut;
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| 85 | unsigned users = 0;
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| 86 | while ((ut = getutent()) != NULL) {
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| 87 | if ((ut->ut_type == USER_PROCESS) && (ut->ut_name[0] != '\0'))
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| 88 | users++;
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| 89 | }
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| 90 | printf(", %u users", users);
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| 91 | }
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| 92 | #endif
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| 93 |
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| 94 | printf(", load average: %u.%02u, %u.%02u, %u.%02u\n",
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[821] | 95 | LOAD_INT(info.loads[0]), LOAD_FRAC(info.loads[0]),
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| 96 | LOAD_INT(info.loads[1]), LOAD_FRAC(info.loads[1]),
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| 97 | LOAD_INT(info.loads[2]), LOAD_FRAC(info.loads[2]));
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| 98 |
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| 99 | return EXIT_SUCCESS;
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| 100 | }
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