[tor-bugs] #18721 [Tor]: Define accessors for connection_t's address fields

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#18721: Define accessors for connection_t's address fields
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     Reporter:  teor         |      Owner:
         Type:  enhancement  |     Status:  new
     Priority:  Medium       |  Milestone:  Tor: 0.2.???
    Component:  Tor          |    Version:
     Severity:  Normal       |   Keywords:
Actual Points:               |  Parent ID:
       Points:  small        |   Reviewer:
      Sponsor:               |
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 In #18460, we noted that connection_t's address fields are confusing.

   we should open a ticket to add comments explaining the real story of
 what's going on above in the code, and that we also open a ticket to
 define a few accessor functions to provide tor_addr_t and string
 representations of the final target address, proxy-or-final, or whatever
 other things we actually need.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18721>
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