Re: New Security Features, Please Comment

From: David Newall
Date: Tue Dec 02 2008 - 21:12:40 EST

Geoffrey McRae wrote:
> But once this set is introduced a HTTP server could be written that uses
> forked children to handle requests, that have their identity swtiched
> before doing any work, including parsing CGI scripts.

But a child could be one user the first time it does work, and another
user the next time. What prevents the child from opening a file while
the first user, and reading or writing it while the second? That's
exactly what you don't want to permit.
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