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Date:      Sun, 17 Jan 2010 20:23:08 +0200
From:      Ali Polatel <alip@exherbo.org>
To:        Nate Eldredge <nate@thatsmathematics.com>
Cc:        Kostik Belousov <kostikbel@gmail.com>, freebsd-hackers@freebsd.org
Subject:   Re: ptrace bug or feature?
Message-ID:  <20100117182307.GA7106@harikalardiyari>
In-Reply-To: <Pine.GSO.4.64.1001171005570.5432@zeno.ucsd.edu>
References:  <20100116190137.GA11414@harikalardiyari> <20100117174251.GG62907@deviant.kiev.zoral.com.ua> <Pine.GSO.4.64.1001171005570.5432@zeno.ucsd.edu>

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Nate Eldredge yazm=FD=FE:
> On Sun, 17 Jan 2010, Kostik Belousov wrote:
>=20
> >It may be a missed feature, not a bug. There is obvious hack value
> >in ability to modify syscall arguments from the debugger.
> >
> >Do you know whether other operating systems allow this ?
>=20
> Linux does, I've used it.

Yep it does, here's example code:
http://alip.github.com/code/ptrace-linux-deny.c

> --=20
>=20
> Nate Eldredge
> nate@thatsmathematics.com

--=20
Regards,
Ali Polatel

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