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From Norman Tuttle <>
Subject Redo for diff: Flood: New patch to flood_socket_keepalive.c fixes keepalive protocol bugs [Ref A7]
Date Thu, 30 Oct 2003 22:50:24 GMT
Here is the patch again for flood_socket_keepalive relating to the
protocol, diff done correctly this time. The patches fix actual client
issues we have had with sites, and is explained in what I previously
wrote to the group, quoted below (note that it does not touch issues
related to chunking, which I also mentioned in that post, other than to
replace the assert() with something more user-friendly):

-Norman Tuttle, developer, OpenDemand Systems

On Wed, 22 Oct 2003, Norman Tuttle wrote:

> The new diff available for Flood fixes protocol errors for keepalive (file
> flood_socket_keepalive.c, function keepalive_recv_resp()) mainly by
> assimilating the functionality of the wantresponse and !wantresponse modes
> within the readback operations, and maintaining whatever worked correctly.
> Also the algorithm for reading a decimal value within the above function
> was simplified (we found cases where what was replaced did not work), as
> was the routine for reading a hexadecimal value (this being in the
> function keepalive_read_chunk_size()), the same reason for its replacement
> applying.

In addition, I applied some fixes which would yield a more correct byte
count, and replaced the assert() with something more user-friendly.
Even after these changes, there are some gaping holes in the logic
connected with chunked transfer protocol. Besides not being applied in the
"wantresponse" case, it would clearly be unable to field a chunk size
which was greater than the MAX_DOC_LENGTH.

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