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Date: Tue, 24 Jul 2007 16:35:35 -0300
From: "Victor Loureiro Lima" <victorloureirolima@gmail.com>
To: "John-Mark Gurney" <gurney_j@resnet.uoregon.edu>, 
	"Daniel Molina Wegener" <dmw@unete.cl>, 
	"FreeBSD Hackers" <freebsd-hackers@freebsd.org>
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Cc: 
Subject: Re: A few questions...
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2007/7/24, John-Mark Gurney <gurney_j@resnet.uoregon.edu>:
> Daniel Molina Wegener wrote this message on Mon, Jul 23, 2007 at 20:52 -0400:
> > a) Is there any function or variable that tells me which is the
> >    root user UID in the system, or root always have 0 and it's
> >    an "elegant" option to compare the variables or structure
> >    members against zero.
>
> #include <sys/conf.h>
>
> uid == UID_ROOT
>
> > b) Can normal users look for system processes or kernel threads?
>
> Yes, ps does this...
>

ps(1) either elevates its priviledges during execution, or has some
other way of medling into the afairs of other processes that will
eventually need some higher priviledge status (either that, or I am
really out-dated on modern operational systems)

There lots of ways of finding information on other process, using
libkvm was the most recent option that I saw ;) might be worth taking
a look at it...

victor loureiro lima