| /* vi: set sw=4 ts=4: */ |
| /* |
| * Mini uptime implementation for busybox |
| * |
| * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> |
| * |
| * Licensed under GPLv2, see file LICENSE in this source tree. |
| */ |
| |
| /* 2011 Pere Orga <gotrunks@gmail.com> |
| * |
| * Added FEATURE_UPTIME_UTMP_SUPPORT flag. |
| */ |
| //config:config UPTIME |
| //config: bool "uptime (632 bytes)" |
| //config: default y |
| //config: select PLATFORM_LINUX #sysinfo() |
| //config: help |
| //config: uptime gives a one line display of the current time, how long |
| //config: the system has been running, how many users are currently logged |
| //config: on, and the system load averages for the past 1, 5, and 15 minutes. |
| //config: |
| //config:config FEATURE_UPTIME_UTMP_SUPPORT |
| //config: bool "Show the number of users" |
| //config: default y |
| //config: depends on UPTIME && FEATURE_UTMP |
| //config: help |
| //config: Display the number of users currently logged on. |
| |
| //applet:IF_UPTIME(APPLET(uptime, BB_DIR_USR_BIN, BB_SUID_DROP)) |
| |
| //kbuild:lib-$(CONFIG_UPTIME) += uptime.o |
| |
| //usage:#define uptime_trivial_usage |
| //usage: "" |
| //usage:#define uptime_full_usage "\n\n" |
| //usage: "Display the time since the last boot" |
| //usage: |
| //usage:#define uptime_example_usage |
| //usage: "$ uptime\n" |
| //usage: " 1:55pm up 2:30, load average: 0.09, 0.04, 0.00\n" |
| |
| #include "libbb.h" |
| #ifdef __linux__ |
| # include <sys/sysinfo.h> |
| #endif |
| |
| |
| #ifndef FSHIFT |
| # define FSHIFT 16 /* nr of bits of precision */ |
| #endif |
| #define FIXED_1 (1 << FSHIFT) /* 1.0 as fixed-point */ |
| #define LOAD_INT(x) (unsigned)((x) >> FSHIFT) |
| #define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1 - 1)) * 100) |
| |
| |
| int uptime_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
| int uptime_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) |
| { |
| unsigned updays, uphours, upminutes; |
| struct sysinfo info; |
| struct tm *current_time; |
| time_t current_secs; |
| |
| time(¤t_secs); |
| current_time = localtime(¤t_secs); |
| |
| sysinfo(&info); |
| |
| printf(" %02u:%02u:%02u up ", |
| current_time->tm_hour, current_time->tm_min, current_time->tm_sec); |
| updays = (unsigned) info.uptime / (unsigned)(60*60*24); |
| if (updays) |
| printf("%u day%s, ", updays, (updays != 1) ? "s" : ""); |
| upminutes = (unsigned) info.uptime / (unsigned)60; |
| uphours = (upminutes / (unsigned)60) % (unsigned)24; |
| upminutes %= 60; |
| if (uphours) |
| printf("%2u:%02u", uphours, upminutes); |
| else |
| printf("%u min", upminutes); |
| |
| #if ENABLE_FEATURE_UPTIME_UTMP_SUPPORT |
| { |
| struct utmpx *ut; |
| unsigned users = 0; |
| while ((ut = getutxent()) != NULL) { |
| if ((ut->ut_type == USER_PROCESS) && (ut->ut_user[0] != '\0')) |
| users++; |
| } |
| printf(", %u users", users); |
| } |
| #endif |
| |
| printf(", load average: %u.%02u, %u.%02u, %u.%02u\n", |
| LOAD_INT(info.loads[0]), LOAD_FRAC(info.loads[0]), |
| LOAD_INT(info.loads[1]), LOAD_FRAC(info.loads[1]), |
| LOAD_INT(info.loads[2]), LOAD_FRAC(info.loads[2])); |
| |
| return EXIT_SUCCESS; |
| } |