Re: System call wrapping

Rogier Wolff (R.E.Wolff@BitWizard.nl)
Tue, 22 Oct 2002 16:02:42 +0200

On Mon, Oct 21, 2002 at 06:16:10PM +0000, Miquel van Smoorenburg wrote:
> What is wrong with a preloaded library (by means of /etc/ld.so.preload)
> that intercepts open at the library level (and calls the real open()
> using RLTD_NEXT) ? Just let it talk over a unix socket to your
> scanner server.

Because you want to intercept ALL "open" system calls, not just those
of "friendly" users who agree to set LD_PRELOAD.

Roger. 

-- 
** R.E.Wolff@BitWizard.nl ** http://www.BitWizard.nl/ ** +31-15-2600998 **
*-- BitWizard writes Linux device drivers for any device you may have! --*
* The Worlds Ecosystem is a stable system. Stable systems may experience *
* excursions from the stable situation. We are currenyly in such an      * 
* excursion: The stable situation does not include humans. ***************
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/