
This code is a rewrite of Rover version 4's pingd  written by Bill 
Norton at Merit in 1989.  It's been enhanced to report latency/ping 
loss data.  It can ping very large numbers of nodes by sending pings 
in parallel.  The orginal code contained the following blurb:

 /*
  * Copyright (c) 1992 Regents of the University of Michigan.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms are permitted
  * provided that this notice is preserved and that due credit is given
  * to the University of Michigan at Ann Arbor. The name of the University
  * may not be used to endorse or promote products derived from this
  * software without specific prior written permission. This software
  * is provided ``as is'' without express or implied warranty.
  *
  */

For more information about Rover, see http://www.merit.net/

