Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site brl-tgr.ARPA Path: utzoo!watmath!clyde!burl!ulysses!allegra!bellcore!decvax!genrad!panda!talcott!harvard!seismo!brl-tgr!tgr!ron@BRL-TGR From: Ron NatalieNewsgroups: net.unix-wizards Subject: Re: Query about setuid() Message-ID: <8186@brl-tgr.ARPA> Date: Sun, 10-Feb-85 15:59:32 EST Article-I.D.: brl-tgr.8186 Posted: Sun Feb 10 15:59:32 1985 Date-Received: Wed, 13-Feb-85 02:20:01 EST Sender: news@brl-tgr.ARPA Organization: Ballistic Research Lab Lines: 16 The VAX version is only valid for System V release 2 or later. Prior to that it was always illegal to set the UID to something other than the real uid if you were not the superuser. In VR2 you are allowed to return to the value you were originally invoked as. First, remember that the Pyramid UNIX (OS/x) has both System V and 4.2 modes. Assuming bsd mode, It would seem that the Pyramid is wrong for not doing the first case, since setting the effective to the real is allowed (and it did do it). In the second case, it is correct. 4.2 only allows the real to be set to the effective and vice versa. Note that setuid() will set both the real and the effective on 4.2. There are other calls to set them individually. Perhaps you should try the Pyramid in Sys5 mode? -Ron