"Trela, Ted" <[EMAIL PROTECTED]> wrote:
> Does anyone know of a method or an existing hack to disable the users
> ability to change the time of day? I need to collect time critical user
> events and would like to prevent the ability to spoof the software via
> changing the time.
You could patch the TimSetSeconds trap to do nothing.
But how secure do you need this to be? If you patch using a HackMaster
hack, the user could simply disable the hack. You could have your own
app patch that trap, but you need to be aware that a reset restores the
original trap table, thus undoing your patch. You could handle the
reset launch code and re-patch the trap there, but then users could do
a "no-reset-notify" reset (holding down the hardware UP button while
doing the reset).
The bottom line is, there doesn't seem to be any foolproof way to void
capabilities that are provided in the Palm ROM applications (such as
changing time in Preferences).
--
Roger Chaplin
<[EMAIL PROTECTED]>
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