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      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 
      8 USE_UPTIME(NEWTOY(uptime, NULL, TOYFLAG_USR|TOYFLAG_BIN))
      9 
     10 config UPTIME
     11   bool "uptime"
     12   default y
     13   depends on TOYBOX_UTMPX
     14   help
     15     usage: uptime
     16 
     17     Tell how long the system has been running and the system load
     18     averages for the past 1, 5 and 15 minutes.
     19 */
     20 
     21 #include "toys.h"
     22 
     23 void uptime_main(void)
     24 {
     25   struct sysinfo info;
     26   time_t tmptime;
     27   struct tm * now;
     28   unsigned int days, hours, minutes;
     29   struct utmpx *entry;
     30   int users = 0;
     31 
     32   // Obtain the data we need.
     33   sysinfo(&info);
     34   time(&tmptime);
     35   now = localtime(&tmptime);
     36 
     37   // Obtain info about logged on users
     38   setutxent();
     39   while ((entry = getutxent())) if (entry->ut_type == USER_PROCESS) users++;
     40   endutxent();
     41 
     42   // Time
     43   xprintf(" %02d:%02d:%02d up ", now->tm_hour, now->tm_min, now->tm_sec);
     44   // Uptime
     45   info.uptime /= 60;
     46   minutes = info.uptime%60;
     47   info.uptime /= 60;
     48   hours = info.uptime%24;
     49   days = info.uptime/24;
     50   if (days) xprintf("%d day%s, ", days, (days!=1)?"s":"");
     51   if (hours) xprintf("%2d:%02d, ", hours, minutes);
     52   else printf("%d min, ", minutes);
     53   printf(" %d user%s, ", users, (users!=1) ? "s" : "");
     54   printf(" load average: %.02f, %.02f, %.02f\n", info.loads[0]/65536.0,
     55     info.loads[1]/65536.0, info.loads[2]/65536.0);
     56 }
     57