[tor-bugs] #25512 [Core Tor/Tor]: Tor in-process restart fails to write auth cookie

[Tor Bug Tracker & Wiki]

#25512: Tor in-process restart fails to write auth cookie
-------------------------+-------------------------------------------------
     Reporter:  tla      |      Owner:  ahf
         Type:  defect   |     Status:  assigned
     Priority:  Medium   |  Milestone:  Tor: 0.3.4.x-final
    Component:  Core     |    Version:  Tor: unspecified
  Tor/Tor                |   Keywords:  tor-mobile, auth cookie, restart,
     Severity:  Normal   |  in-process
Actual Points:           |  Parent ID:  #23684
       Points:           |   Reviewer:
      Sponsor:           |
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 I integrated latest Tor master on 2018-03-15 into
 [http://github.com/iCepa/Tor.framework/ Tor.framework] resp.
 [http://github.com/mtigas/OnionBrowser OnionBrowser 2]. Shutdown with the
 improved `SIGNAL SHUTDOWN` seems to work just fine.

 When restarting Tor, however, it turns out, that the auth cookie is not
 written to the file system on the second time. First time works, file
 obviously gets deleted on `SHUTDOWN` but is not recreated on second start.

 There is an according log entry the first time:

   [info] init_cookie_authentication: Generated auth cookie file in
 '"/var/mobile/Containers/Data/Application/0653FD89-2D17-477A-B541-FC53F1A29EBD/Library/Caches/tor/control_auth_cookie"'.

 This is **not** appearing on restart.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25512>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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