[tor-bugs] #16515 [Tor]: tor_open_cloexec only uses the sandbox when O_CLOEXEC is defined

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#16515: tor_open_cloexec only uses the sandbox when O_CLOEXEC is defined
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     Reporter:  teor    |      Owner:
         Type:  defect  |     Status:  needs_review
     Priority:  normal  |  Milestone:
    Component:  Tor     |    Version:  Tor: 0.2.3.1-alpha
   Resolution:          |   Keywords:  backport
Actual Points:          |  Parent ID:
       Points:          |
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Comment (by teor):

 This issue only affects old systems without `O_CLOEXEC`.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/16515#comment:5>
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