ssh-agent subprocess parentage

Ángel González keisial at
Tue May 10 08:51:28 EST 2011

Daniel Kahn Gillmor wrote:
> On 05/09/2011 06:14 PM, Ángel González wrote:
>> Actually, there is a non-portable way in Linux to get a when your parent
>> dies.
>> I had been looking for it in clone(2) from your previous mail, but it
>> actually
>> lives at prctl(2)
>> I could look into using it under Linux if there's interest on it.
> Ah, nice find!  That would certainly help the concern that an ssh-agent
> process would linger on Linux (maybe similar approaches are available
> for other kernels?), but it doesn't resolve the process supervision
> concern, does it?
> 	--dkg
No. It only applies to the "lingering" case, where the parent id is
reused before
the agent notices with a long-lived process owned by the same user.

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