From: Dave Thompson <david.thompson1@worldnet.att.net>
Subject: Re: C's trikery semantic opens up backdoor in new Linux kernel
Date: Thu, 27 Nov 2003 04:22:25 GMT
Date: 2003-11-27T04:22:25+00:00 [thread overview]
Message-ID: <tki9svs1t1j21amp4u14ro5jp3ihc92si6@4ax.com> (raw)
In-Reply-To: 27427869.cO6lCOVPY8@linux1.krischik.com
On Fri, 21 Nov 2003 16:34:17 +0100, Martin Krischik
<krischik@users.sourceforge.net> wrote:
> Dave Thompson wrote:
>
> > There's nothing you can do with the C preprocessor that can't be done
> > directly in source -- because the preprocessor is a source-to-source
>
> Well you can redefine keywords:
>
> #define private public
> #define protected public
> #include <....>
>
> Well it is a C++ hack - but I guess you get the drift.
>
If you do that for a *standard* header, as the <> implies but does not
require, it's technically illegal: C 7.1.2, C++ 17.4.3.1.1p2. But even
where it works anyway, or for a header where it's legal, you can
accomplish the same thing by writing out (desired declarations etc.
from) the contents of the include-d file changed as specified. That's
(one case of) what I meant by "directly in [your] source".
- David.Thompson1 at worldnet.att.net
next prev parent reply other threads:[~2003-11-27 4:22 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-12 3:17 C's trikery semantic opens up backdoor in new Linux kernel Adrian Hoe
2003-11-12 4:26 ` Stephane Richard
2003-11-12 5:13 ` J Cusick
2003-11-12 7:18 ` Vinzent 'Gadget' Hoefler
2003-11-12 7:50 ` Duncan Sands
2003-11-12 12:08 ` Vinzent 'Gadget' Hoefler
2003-11-12 13:38 ` Duncan Sands
2003-11-12 14:09 ` Vinzent 'Gadget' Hoefler
2003-11-13 21:04 ` Craig Carey
2003-11-14 6:45 ` Freejack
2003-11-14 8:33 ` Erlo Haugen
2003-11-14 9:44 ` Vinzent 'Gadget' Hoefler
2003-11-14 10:16 ` Dmitry A. Kazakov
2003-11-25 10:06 ` Craig Carey
2003-11-25 11:20 ` Dmitry A. Kazakov
2003-11-14 15:31 ` Robert I. Eachus
2003-11-14 13:12 ` Georg Bauhaus
2003-11-14 13:31 ` Duncan Sands
2003-11-14 14:56 ` Vinzent 'Gadget' Hoefler
2003-11-14 15:08 ` Georg Bauhaus
2003-11-14 15:38 ` Duncan Sands
2003-11-14 17:57 ` Georg Bauhaus
2003-11-14 15:47 ` Robert I. Eachus
2003-11-14 16:38 ` Vinzent 'Gadget' Hoefler
2003-11-19 4:13 ` Dave Thompson
2003-11-21 15:34 ` Martin Krischik
2003-11-23 2:20 ` Hyman Rosen
2003-11-27 4:22 ` Dave Thompson [this message]
2003-11-28 14:01 ` Hyman Rosen
2003-11-12 17:37 ` tmoran
2003-11-12 18:03 ` Warren W. Gay VE3WWG
2003-11-12 8:51 ` Adrian Hoe
2003-11-12 12:32 ` Preben Randhol
2003-11-13 5:50 ` Chad R. Meiners
2003-11-12 22:59 ` Wes Groleau
2003-11-14 3:31 ` Adrian Hoe
2003-11-14 11:00 ` Dmytry Lavrov
2003-11-15 5:00 ` Adrian Hoe
2003-11-15 5:02 ` Adrian Hoe
2003-11-16 11:29 ` Dmytry Lavrov
2003-11-17 17:07 ` Warren W. Gay VE3WWG
2003-11-16 11:35 ` Dmytry Lavrov
2003-11-15 19:30 ` Wes Groleau
2003-11-12 8:52 ` Adrian Hoe
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