Re: faking time

Kilobug (kilobug@freesurf.fr)
Tue, 12 Feb 2002 00:08:34 +0100

SA products wrote:
> Dear Kernel list,
>
> I want to fake the time returned by the time() system call so that for a
> limited number
> of user space programs the time can be set to the future or the past
> without affecting
> other applications and without affecting system time-- Ideally I would
> like to install a
> loadable module to accomplish this- Any hints ? Any starting points?

Maybe could you use a shared library loaded with LD_PRELOAD that
overrides the libc's time() function ?
IMHO this is simpler (and safer) than writing a kernel module, but
it will only work with dynamically linked programs, not with static
nor suid-ed programs.

-- 
** Gael Le Mignot "Kilobug", Ing3 EPITA - http://kilobug.free.fr **
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