On Sun, 2007-03-04 at 17:42 +0100, Sven Ekman wrote:
> Hello,
>
> I have a setuid executable which is written in C. Is
> there a system call with which I can get the uid of
> the calling user if the executable is setuid root?
>
> If the executable is setuid to a non-root user,
> getuid() and geteuid() return the real and effective
> userid as expected. If setuid root, both return "0".
>
> Is there a good reason for this behaviour? A way to
> circumvent it? Or a very good reason not to try?
>
> Thanks and regards,
> Sven
>
As far as I know, root's uid is 0.
--
Szia:
Nyizsa.
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