[tor-bugs] #5762 [Tor Client]: SOCK_CLOEXEC should get ENOSYS, not EINVAL, on accept()

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#5762: SOCK_CLOEXEC should get ENOSYS, not EINVAL, on accept()
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 Reporter:  arma        |          Owner:                    
     Type:  defect      |         Status:  needs_review      
 Priority:  normal      |      Milestone:  Tor: 0.2.3.x-final
Component:  Tor Client  |        Version:                    
 Keywords:              |         Parent:                    
   Points:              |   Actualpoints:                    
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Comment(by nickm):

 That's a tiny bit wrong.  accept4 can give ENOSYS *or* EINVAL -- it gives
 ENOSYS if the accept4 syscall isn't supported by the kernel, and gives
 EINVAL if the syscall is present, but one the flags SOCK_CLOEXEC or
 SOCK_NONBLOCK isn't supported.


 So instead of changing that line to "if (errno != ENOSYS)", we should
 technically change it to "if (errno != ENOSYS && errno != EINVAL)".

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/5762#comment:2>
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