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SubjectRe: Intercepting system calls

Hello Gaurav,

Gaurav Saxena:
> I am writing an application for which I need to intercept some
> filesystem system calls eg. unlink. I need unlink to call my code

For kernel space, CONFIG_KPROBES may help you.
See Documentation/kprobes.txt in detail.

For user space, $LD_PRELOAD may help you.
You will need to develop your shared object library which contains
your_unlink() and replaces the original unlink().
See manual page.

J. R. Okajima

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