[cap-talk] Confused Deputy, multiple authorities - Norm?

[Valerio Bellizzomi]

On 25/10/2006, at 9.27, David Wagner wrote:

>In article <200610251204590230.001880CC at smtp.village.it> you write:
>>Can this problem be resolved by designing the "check+write" as an atomic
>>operation ?
>
>Yes.  That's exactly what the standard advice does.  You switch hats
>to take on the appropriate userid, then go ahead and issue the write
>request, and the OS will perform the check atomically before executing
>the write operation.

I lack a definition of "the standard advice" term, but if the same can be
applied to the "check+read", in this case the problem should be at least
partially resolved ?


Val