Re: [chrony-dev] Patch: avoid infinite select() loop on chronyc

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On Mon, Dec 04, 2017 at 09:19:07AM -0800, Cristian Gafton wrote:
> On Mon, 4 Dec 2017, Miroslav Lichvar wrote:
> > I think the fix should be to check the timeout after its calculation.
> > If it is negative, a new attempt should be made.
> I still think we need to limit bound the bnmber of attempts. Making the
> assumption tat the next time around on a new attempt things will be
> different is too risky. I'd rather have chronyc exit unsuccessfully than
> keep trying forever the same codepath that already failed once...

I think it could immediatelly return from the function with zero if
select() failed (and errno is not EINTR?). In normal operation when
the server is or is not responding, it's not expected to fail.

Miroslav Lichvar

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