[PATCH v3] getrandom system call wrapper [BZ #17252]
Florian Weimer
fweimer@redhat.com
Thu Sep 8 12:46:00 GMT 2016
On 09/08/2016 01:44 PM, Florian Weimer wrote:
> Here is a new attempt at providing the getrandom system call.
>
> I have retained the __getrandom symbol mangling. The justification for
> that is that getrandom is a fairly common name. Application code might
> use it for something else entirely and interpose their definition, so
> that libraries cannot rely on it doing the right thing. I think the
> mangling is justified because it is hard to spot that getrandom is
> broken due to interposition. As <sys/random.h> is a new header, the
> macro will be exposed to few applications.
>
> I have made the system call wrapper a cancellation point. (If we
> implement the simpler getentropy interface, it would not be a
> cancellation point.)
Updated with Rical's suggestions from the other thread.
Thanks,
Florian
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