[tor-bugs] #17951 [Tor]: Make address family search via UDP socket hack more accurate

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#17951: Make address family search via UDP socket hack more accurate
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     Reporter:  teor    |      Owner:
         Type:  defect  |     Status:  new
     Priority:  Medium  |  Milestone:  Tor: 0.2.8.x-final
    Component:  Tor     |    Version:
     Severity:  Normal  |   Keywords:  easy
Actual Points:          |  Parent ID:
       Points:          |    Sponsor:
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 The following address family search functions don't always return an IPv6
 address:
 * get_interface_address6_via_udp_socket_hack takes an address family as
 its first argument
   *  when get_interface_address6_list is passed AF_UNSPEC, it should be
 call get_interface_address6_via_udp_socket_hack with AF_INET, and then
 AF_INET6, and then both addresses should be returned

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17951>
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