>>>>> "Peter" == Peter Rundle <[EMAIL PROTECTED]> writes:
Peter> Peter Chubb wrote:
>> So do a setuid(geteuid()) in there...
Peter> Que? I don't follow, do you mean the "C" should look like;
Peter> setuid(geteuid()); execlp(argv[1],argv[2]);
Yes, that's right.
Peter> I tried the above, but no joy, "./suidexec id" still reports
Peter> uid=501(prundle) gid=501(prundle) euid=502(matlab)
Ah. Posix semantics.
Instead, do
setreuid(geteuid(), -1);
that should fix it.
--
Dr Peter Chubb http://www.gelato.unsw.edu.au peterc AT gelato.unsw.edu.au
http://www.ertos.nicta.com.au ERTOS within National ICT Australia
--
SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/
Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html