Matthias, Can you elaborate a little please? Regards, Sandeep. On Tue, Nov 11, 2008 at 2:18 PM, Matthias Kaehlcke <matthias@xxxxxxxxxxxx> wrote: > El Tue, Nov 11, 2008 at 02:01:48PM +0530 sandeep lahane ha dit: > >> If I am not missing anything and if there is libc wrapper provided >> for calls to be trapped then I think this can be done userspace. >> Just write the wrappers for calls to be trapped and and make a shared >> lib out of it, and then do >> a LD_PRELOAD of that lib, or add it to /etc/ld.so.preload. >> >> So it would look like this, >> >> app calls func -> func in your wrapper lib -> actual libc func or >> whatever you want to call from you lib. >> This way, you cal trap all calls like open/close etc CMIIW. > > the solution you propose was my first thought, but i think it has a > flaw: the user himself could use LD_PRELOAD to circumvent the call to > the wrapper function > > -- > Matthias Kaehlcke > Embedded Linux Engineer > Barcelona > > The assumption that what currently exists must necessarily > exist is the acid that corrodes all visionary thinking > .''`. > using free software / Debian GNU/Linux | http://debian.org : :' : > `. `'` > gpg --keyserver pgp.mit.edu --recv-keys 47D8E5D4 `- > -- Regards, Sandeep. -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
