Yosi Saggi wrote:
Hi
I have a question about the “tvb_composite…” functions.
I have an Ethernet message that comes in chunks. All of the payload is
in the Ethernet message, just divided to several chunks of data.
I have used “tvb_composite_append” function to collect all the chunks
into one tvb. And used the “tvb_composite_finalize” to finalize the tvb.
The problem is that the new tvb has no “real_data” inside. Therefore I
can’t use any “tvb_get..” functions.
I have also noticed that the (tvbuff_t*)new_tvb->used_in->data is the
end of the buffer and not the beginning. If it was the beginning I could
have used that. It doesn’t matter if I use prepend or append the result
is the same.
I have 3 chunks’ meaning the usage count is = 4. The beginning of the
data is at (tvbuff_t*)new_tvb->used_in->next->next->data, why is that?
Is there a way to use the finialized new_tvb buffer as I would use any
subset_tvb ?
epan/tvbtest.c says:
~~~
#if 0
/* Composite tvbuffs don't work at the moment -- tests
commented out until
* they do. */
~~~
I've never heard of anyone successfully using composite TVBs so I'm
guessing the comment (from 2007) is still accurate.
