/* #################################################################
   my_uptime, Dennis Helligsoe, dh@hovklan.com
   -------------------------------------------
   1.0 2006-02-18 : Initial release

   WHAT IT IS?
   -----------
   "my_uptime" is a FreeBSD uptime program, that reports the uptime
   on a FreeBSD server. The standard "uptime" on a FreeBSD is really
   not that database friendly, so it is quite hard to parse the
   output into a such! ;-)
   The output is given as seconds, minutes, hours and days. 
   Example - if the current uptime is exacly 1 day:
   86400 1440 24 1
   
   INPUT:
   ------
   none
   
   OUTPUT:
   -------
   seconds minutes hours days
   
   HOW TO COMPILE SOURCE CODE:
   ---------------------------
   gcc my_uptime.c -o /usr/local/sbin/my_uptime
   
   ################################################################# */


#include <stdio.h>
#include <sys/time.h>
#include <sys/sysctl.h>

int main(int argc, char *argv[])
  {

  unsigned long uptime_secs;
  float uptime_mins;
  float uptime_hours;
  float uptime_days;
  time_t now;
  struct timeval boottime;
  size_t size;
  int mib[2];
  
  time(&now);
  mib[0] = CTL_KERN;
  mib[1] = KERN_BOOTTIME;
  size = sizeof(boottime);
  
  if(sysctl(mib, 2, &boottime, &size, NULL, 0) != -1 && (boottime.tv_sec != 0))
    {
    uptime_secs = now - boottime.tv_sec;
    uptime_mins = uptime_secs;
    uptime_mins /= 60;
    uptime_hours = uptime_mins;
    uptime_hours /= 60;
    uptime_days = uptime_hours;
    uptime_days /= 24;
    }

  printf("%lu %4.2f %4.2f %4.2f\n", uptime_secs, uptime_mins, uptime_hours, uptime_days);

  }