/* 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. */ /* getopt not needed */ //config:config UPTIME //config: bool "uptime" //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 "Support for showing the number of users" //config: default y //config: depends on UPTIME && FEATURE_UTMP //config: help //config: Makes uptime display the number of users currently logged on. //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 utmp *ut; unsigned users = 0; while ((ut = getutent()) != NULL) { if ((ut->ut_type == USER_PROCESS) && (ut->ut_name[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; }