in the packet when doing reassembly checks, as is done in other places
where we do TCP segment reassembly.
The return value of "tvb_reported_length_remaining()" can be negative -
it's a "gint"; assign it to a "gint", so that if we go past the end of
the packet in the main loop, we break out of that loop (and do so
elsewhere, just for cleanliness' sake).
Get rid the check in the loop to make sure we make no more than 20
iterations - all the routines that parse packets should either advance
the offset by at least one byte or return a "desegmentation required"
indication; the former means we make progress and eventually exit the
loop, the latter means we immediately exit the loop.
Use "int" variables, not "guint" variables, for packet offsets.
svn path=/trunk/; revision=7475
Guy Harris