[tor-bugs] #24097 [Core Tor/Tor]: evdns_callback(): Bug: eventdns returned no addresses or error

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#24097: evdns_callback(): Bug: eventdns returned no addresses or error
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 Reporter:  toralf        |          Owner:  nickm
     Type:  defect        |         Status:  needs_review
 Priority:  Medium        |      Milestone:  Tor: 0.3.2.x-final
Component:  Core Tor/Tor  |        Version:  Tor: 0.3.2.3-alpha
 Severity:  Normal        |     Resolution:
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
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Changes (by nickm):

 * status:  accepted => needs_review


Comment:

 Huh. From looking at the libevent code, I believe this can happen if the
 nameserver gives us (for example) an A record or an AAAA record of length
 zero.  If that's the case, it's not a tor bug, and we probably shouldn't
 freak out about it.

 Will nameservers do that sometimes?

 If so, I think the right response here is to downgrade the warning.  My
 branch `ticket24097_032` takes that approach.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24097#comment:4>
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