[tor-bugs] #4734 [Tor Relay]: Tor DNS resolver only supports UDP sockets so can't resolve large RRs

Sat Dec 17 11:30:43 UTC 2011

#4734: Tor DNS resolver only supports UDP sockets so can't resolve large RRs
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 Reporter:  murble     |          Owner:                  
     Type:  defect     |         Status:  new             
 Priority:  minor      |      Milestone:                  
Component:  Tor Relay  |        Version:  Tor: unspecified
 Keywords:  dns        |         Parent:                  
   Points:             |   Actualpoints:                  
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 When Tor attempts to resolve a RR and receives truncated
 required, it gives up and fails rather than trying again over
 a TCP socket, as an example:

 tor-resolve test2.pho.be # works,
 whilst
 tor-resolve test1.pho.be # always fails.

 The problem seems to be in evdns.c / libevent

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4734>
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