On Mon, Nov 06, 2000 at 10:11:11AM -0500, Michael Vines wrote:
> On Mon, 6 Nov 2000, Erik Mouw wrote:
> > Use LD_PRELOAD instead.
>
> You could also write a simple kernel module that replaces the open system
> call. See the Linux Kernel Module Programming Guide for details.
> http://www.linuxdoc.org/guides.html
>
> specifically http://www.linuxdoc.org/LDP/lkmpg/node20.html
Why difficult when it can be done easy? To test the Y2K readiness of
some programs (yeah, Y2K, remember?), I wrote a small library that
overloaded the time() and gettimeofday() syscalls in about 100 lines of
code. No kernel modules needed, no root privileges needed, just set the
environment variable LD_PRELOAD and off you go.
Erik
-- J.A.K. (Erik) Mouw, Information and Communication Theory Group, Department of Electrical Engineering, Faculty of Information Technology and Systems, Delft University of Technology, PO BOX 5031, 2600 GA Delft, The Netherlands Phone: +31-15-2783635 Fax: +31-15-2781843 Email: J.A.K.Mouw@its.tudelft.nl WWW: http://www-ict.its.tudelft.nl/~erik/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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