System V.2.2 setuid() broken

[Boyd Roberts]

I'm root and I run a non-root setuid executable.  Then I want
to fork() a shell and do the usual:

	setuid(getuid())

Of course, I get EPERM, because setuid() is broken.  Now is this
a generic System V bug.  I think it is.  Clarification please?

I think what I have is pretty generic SysV.  V8 & 32V do the _right_
thing, they work.  System V has, of course, a mind of it's own.

I _know_ it's a bit silly, but it should _work_.  UNIX did.


Boyd Roberts			boyd at basser.cs.su.oz
				boyd at necisa.necisa.oz

``When the going gets wierd, the weird turn pro...''