[tor-bugs] #23975 [Core Tor/Tor]: Make node_get_pref_ipv6_orport() check addresses in the right order

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#23975: Make node_get_pref_ipv6_orport() check addresses in the right order
-------------------------------------------------+-------------------------
 Reporter:  teor                                 |          Owner:  teor
     Type:  defect                               |         Status:
                                                 |  needs_revision
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  unspecified
Component:  Core Tor/Tor                         |        Version:  Tor:
                                                 |  0.2.8.1-alpha
 Severity:  Normal                               |     Resolution:
 Keywords:  ipv6, review-group-29,               |  Actual Points:  2
  034-triage-20180328, 034-removed-20180328      |
Parent ID:  #20916                               |         Points:  1
 Reviewer:  nickm                                |        Sponsor:
                                                 |  SponsorV-can
-------------------------------------------------+-------------------------

Comment (by teor):

 When #25691 merges, we should rebase this branch on top of it, and use the
 new has_preferred_descriptor() function.
 (Or perhaps create a similar function that actually returns some of the
 fields.)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23975#comment:17>
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