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, ">0ps", TOYFLAG_USR|TOYFLAG_BIN)) 8 9 config UPTIME 10 bool "uptime" 11 default y 12 depends on TOYBOX_UTMPX 13 help 14 usage: uptime [-ps] 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 -p Pretty (human-readable) uptime 20 -s Since when has the system been up? 21 */ 22 23 #define FOR_uptime 24 #include "toys.h" 25 26 void uptime_main(void) 27 { 28 struct sysinfo info; 29 time_t t; 30 struct tm *tm; 31 unsigned int days, hours, minutes; 32 struct utmpx *entry; 33 int users = 0; 34 35 // Obtain the data we need. 36 sysinfo(&info); 37 time(&t); 38 39 // Just show the time of boot? 40 if (toys.optflags & FLAG_s) { 41 t -= info.uptime; 42 tm = localtime(&t); 43 strftime(toybuf, sizeof(toybuf), "%F %T", tm); 44 xputs(toybuf); 45 return; 46 } 47 48 // Current time 49 tm = localtime(&t); 50 // Uptime 51 info.uptime /= 60; 52 minutes = info.uptime%60; 53 info.uptime /= 60; 54 hours = info.uptime%24; 55 days = info.uptime/24; 56 57 if (toys.optflags & FLAG_p) { 58 int weeks = days/7; 59 days %= 7; 60 61 xprintf("up %d week%s, %d day%s, %d hour%s, %d minute%s\n", 62 weeks, (weeks!=1)?"s":"", 63 days, (days!=1)?"s":"", 64 hours, (hours!=1)?"s":"", 65 minutes, (minutes!=1)?"s":""); 66 return; 67 } 68 69 xprintf(" %02d:%02d:%02d up ", tm->tm_hour, tm->tm_min, tm->tm_sec); 70 if (days) xprintf("%d day%s, ", days, (days!=1)?"s":""); 71 if (hours) xprintf("%2d:%02d, ", hours, minutes); 72 else printf("%d min, ", minutes); 73 74 // Obtain info about logged on users 75 setutxent(); 76 while ((entry = getutxent())) if (entry->ut_type == USER_PROCESS) users++; 77 endutxent(); 78 79 printf(" %d user%s, ", users, (users!=1) ? "s" : ""); 80 printf(" load average: %.02f, %.02f, %.02f\n", info.loads[0]/65536.0, 81 info.loads[1]/65536.0, info.loads[2]/65536.0); 82 } 83
