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Date: Sat, 02 Jan 1999 00:31:11 +1000
From: Greg Black <gjb@acm.org>
To: "Ronald F. Guilmette" <rfg@monkeys.com>
Cc: questions@FreeBSD.ORG
Subject: Re: /bin/sh -p broken? 
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> Is it just me or does the -p option to /bin/sh not actually do what it
> it is supposed to do?

Seems not to.

> This is really quite handy, because it allows you to write setuid shell
> scripts.... and I happen to be in need of exactly such a thing right at
> the moment.

If you really need to do this (which I think is a bad idea, but
that's not of interest here), it's a matter of a few seconds to
write a setuid C wrapper program like this:

    #include <stdlib.h>
    #include <unistd.h>

    int main(void)
    {
      setuid(geteuid());	/* optional */
      system("my_shell_script");
      return 0;
    }

-- 
Greg Black <gjb@acm.org>


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