[tor-bugs] #17255 [Tor]: get_ifaddrs_* unti tests assume an IPv4 address is configured

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#17255: get_ifaddrs_* unti tests assume an IPv4 address is configured
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 Reporter:  teor    |          Owner:
     Type:  defect  |         Status:  new
 Priority:  normal  |      Milestone:  Tor: 0.2.7.x-final
Component:  Tor     |        Version:  Tor: 0.2.7.3-rc
 Keywords:  tests   |  Actual Points:
Parent ID:          |         Points:
  Sponsor:          |
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 get_ifaddrs_* unti tests assume an IPv4 address is configured, but when my
 Wifi is off, that isn't true.

 It's best not to assume much, so the tor unit tests can run on networkless
 boxes.

 This needs a backport to 0.2.7.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17255>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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