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From: glenn@suphys.physics.su.OZ.AU (Glenn Geers)
Newsgroups: comp.unix.sysv386
Subject: system(3) behaviour under Esix rev. D
Message-ID: <1991Feb17.214252.27336@metro.ucc.su.OZ.AU>
Date: 17 Feb 91 21:42:52 GMT
Sender: news@metro.ucc.su.OZ.AU
Reply-To: glenn@suphys.physics.su.OZ.AU (Glenn Geers)
Organization: School of Physics, Uni of Sydney, Australia.
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Nntp-Posting-Host: suphys.physics.su.oz.au

Hi,
	I've got a program that is setuid root that runs a system command
via the system(3) library routine. The problem is that I need the effective
uid of the calling program to be inherited by the process run by system(3).
Esix does not seem to do this. If I use my own fork/exec sequence I have no
problems. The question is: Should system(3) really set the uid of the process
it runs to the effective uid of the invoking program or to its real uid?
I have RTFM'd and the former case seems correct but the latter is occuring.


Any thoughts appreciated.
Thanks,
Glenn

glenn@qed.physics.su.oz.au


--
Glenn Geers                       | "So when it's over, we're back to people.
Department of Theoretical Physics |  Just to prove that human touch can have
The University of Sydney          |  no equal."
Sydney NSW 2006 Australia         |  - Basia Trzetrzelewska, 'Prime Time TV'