IP addresses - either use "tvb_memcpy()", or just use
"proto_tree_add_item()" and leave the fetching up to the core Ethereal
code.
In the DVMRP dissector, replace a bunch of other "proto_tree_add_XXX()"
calls with "proto_tree_add_item()", and use
"tvb_reported_length_remaining()" rather than "tvb_length_remaining()"
(if we didn't capture enough data because the snapshot length was too
low, we *want* an exception to be thrown, so that the frame is marked as
a "Short Frame").
svn path=/trunk/; revision=4109