Make the port arguments to udpipaddr_print() ints so that there can be

Make the port arguments to udpipaddr_print() ints so that there can be
 an out-of-range flag value.
Seperate out the truncation checks into two: are the ports available,
 then do all the other checks, then check to see if the full UDP header
 is available.
This is a slightly modified version of Alexander's original patch to
 instead use udpipaddr_print() to print the addresses if the ports are not
 available.

Submitted-by:	Alexander Dupuy
Sourceforge bug #579811