1 /* uptime.c - Tell how long the system has been running. 2 * 3 * Copyright 2012 Elie De Brauwer <eliedebrauwer (at) gmail.com> 4 * Copyright 2012 Luis Felipe Strano Moraes <lfelipe (at) profusion.mobi> 5 * Copyright 2013 Jeroen van Rijn <jvrnix (at) gmail.com> 6 7 USE_UPTIME(NEWTOY(uptime, ">0s", TOYFLAG_USR|TOYFLAG_BIN)) 8 9 config UPTIME 10 bool "uptime" 11 default y 12 depends on TOYBOX_UTMPX 13 help 14 usage: uptime [-s] 15 16 Tell the current time, how long the system has been running, the number 17 of users, and the system load averages for the past 1, 5 and 15 minutes. 18 19 -s Since when has the system been up? 20 */ 21 22 #define FOR_uptime 23 #include "toys.h" 24 25 void uptime_main(void) 26 { 27 struct sysinfo info; 28 time_t t; 29 struct tm *tm; 30 unsigned int days, hours, minutes; 31 struct utmpx *entry; 32 int users = 0; 33 34 // Obtain the data we need. 35 sysinfo(&info); 36 time(&t); 37 38 // Just show the time of boot? 39 if (toys.optflags & FLAG_s) { 40 t -= info.uptime; 41 tm = localtime(&t); 42 strftime(toybuf, sizeof(toybuf), "%F %T", tm); 43 xputs(toybuf); 44 return; 45 } 46 47 // Obtain info about logged on users 48 setutxent(); 49 while ((entry = getutxent())) if (entry->ut_type == USER_PROCESS) users++; 50 endutxent(); 51 52 // Current time 53 tm = localtime(&t); 54 xprintf(" %02d:%02d:%02d up ", tm->tm_hour, tm->tm_min, tm->tm_sec); 55 // Uptime 56 info.uptime /= 60; 57 minutes = info.uptime%60; 58 info.uptime /= 60; 59 hours = info.uptime%24; 60 days = info.uptime/24; 61 if (days) xprintf("%d day%s, ", days, (days!=1)?"s":""); 62 if (hours) xprintf("%2d:%02d, ", hours, minutes); 63 else printf("%d min, ", minutes); 64 printf(" %d user%s, ", users, (users!=1) ? "s" : ""); 65 printf(" load average: %.02f, %.02f, %.02f\n", info.loads[0]/65536.0, 66 info.loads[1]/65536.0, info.loads[2]/65536.0); 67 } 68
