[tor-bugs] #20775 [Applications/Tor Browser Sandbox]: Use Tor Browser's integrated `AF_LOCAL` support on alpha.

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#20775: Use Tor Browser's integrated `AF_LOCAL` support on alpha.
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     Reporter:  yawning                           |      Owner:  yawning
         Type:  enhancement                       |     Status:  new
     Priority:  Low                               |  Milestone:
    Component:  Applications/Tor Browser Sandbox  |    Version:
     Severity:  Normal                            |   Keywords:
Actual Points:                                    |  Parent ID:
       Points:                                    |   Reviewer:
      Sponsor:                                    |
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 The `tbb_stub.so` used by `sandboxed-tor-browser` currently overloads
 `socket()` and `connect()` to force Firefox into using an AF_LOCAL socket
 for the control and socks ports.

 Once the stable release series has first class support for AF_LOCAL, the
 surrogate and stub should be changed to use those over the hack to reduce
 the amount of code in the stub.

 Note: The stub has other duties and likely will be impossible to eliminate
 entirely, but the smaller the stub is the better.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20775>
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