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Path: utzoo!watmath!clyde!burl!ulysses!allegra!mit-eddie!genrad!decvax!cwruecmp!abic!crc
From: crc@abic.UUCP (Clive Charlwood)
Newsgroups: net.bugs.usg
Subject: Re: Sv.2 suid bits
Message-ID: <697@abic.UUCP>
Date: Mon, 9-Dec-85 14:19:02 EST
Article-I.D.: abic.697
Posted: Mon Dec  9 14:19:02 1985
Date-Received: Wed, 11-Dec-85 03:22:10 EST
References: <123@rexago1.UUCP> <6600001@ndm20>
Organization: Allen-Bradley Co., Highland Heights, OH 44143
Lines: 26

> 
> >> On SV.2 (3b2, pc7300 (Safari)) suid bits do not work on shell scripts.  Am
> >> I just silly or don't I remember them working on 2 other UN*X-ish (TNIX,
> >> XENIX) environments?
> >Suid bits on shell scripts don't work on any machine I have ever used. 
> >This includes PDP-11/70, Vax, 3b20, U370, PC7300.  It is frustrating,
> >but I have wound up making up a little C program which execs the shell. 
> >The C program has the suid bit set...
> 
> I'm glad I didn't know this, because I had need of  some scripts that
> were suid, so I wrote them and they worked! I am on a Masscomp,
> which runs a blend of SysIII, SysV, 4.1, and 4.2.
> 

I too have used the setuid bit on a masscomp machine. Two important
points though. 
    i)  You need to include the line '#! /bin/sh' so that exec(2) can
	handle it.

    ii) Your shell script runs as a restricted shell. (Anybody know a
	way around this folks)


	Clive Charlwood.

	P.S. I hate :->, :-) ;-} etc. Please desist.