Query Hit message forwarding rules...
 

from the document at:

http://www9.limewire.com/developer/g...otocol_0.4.pdf

2. QueryHit descriptors may only be sent along the same path that carried the incoming
Query descriptor. This ensures that only those servents that routed the Query
descriptor will see the QueryHit descriptor in response. A servent that receives a
QueryHit descriptor with Descriptor ID = n, but has not seen a Query descriptor with
Descriptor ID = n should remove the QueryHit descriptor from the network.

and

6. A servent receiving a descriptor with the same Payload Descriptor and Descriptor ID as
one it has received before, should attempt to avoid forwarding the descriptor to any
connected servent. Its intended recipients have already received such a descriptor, and
sending it again merely wastes network bandwidth.

I see this causing a problem, assuming that a Query Hit message uses the same Descriptor ID as the Query message it is responding to, since I don't see any other place in the Query Hit message for the Query's Descriptor ID, what happens if two different servers want to respond using the same intermediate connection?

as an example, A, B, and C, are all connected to D.

A querys D
D forwards that query to B and C
B responds to D
D passes that reply back to A

then...

C responds to D

and then D discards the message?

or does D send it on to A?

some clarification would be useful for us would-be client developers.