Re: ".forward" in mail logs

From: Lee Sau Dan (danlee@informatik.uni-freiburg.de)
Date: 11/25/02 

From: Lee Sau Dan <danlee@informatik.uni-freiburg.de>
Date: 25 Nov 2002 09:05:39 +0100

>>>>> "richard" == richard <rmcclary@apcc.aspca.org> writes:

    richard> Thanks for your response. What is within the "[snip]",
    richard> however, is the fact that the .forward files do not
    richard> exist!

A mental exercise for you.

Consider this scenario:

        /tmp/x/f is a file
but /tmp/x has the "x" bit cleared for everyone (e.g. after a
               "chmod a-x /tmp/x")

Now, what do you expect to happen when a non-root user tries to "ls -l
/tmp/x/f" (which boils down to the stat(2) syscall)?

A "Permission denied" error, or a "No such file or directory" error?

Which is more reasonable? More secure? Why? 

-- 
Lee Sau Dan                     §õ¦u´°(Big5)                    ~{@nJX6X~}(HZ) 
E-mail: danlee@informatik.uni-freiburg.de
Home page: http://www.informatik.uni-freiburg.de/~danlee

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