Subj : interupts question
To   : Dennis Collins
From : Jasen Betts
Date : Thu Dec 07 2000 10:48 pm

Hi Dennis.

06-Dec-00 10:19:00, Dennis Collins wrote to All


 DC> I am involved in devoloping a Dos program that has to hook to a
 DC> PPP packet driver, the question is......

 DC> what is the easiest way to find out which interupt the PPP packet
 DC> driver is using, the avaiable info on the PPP driver says that it
 DC> can be any of the following...

from Ralf Brown's intterupt list:

-=------N-60---------------------------------
INT 60 - FTP Packet Driver - PC/TCP Packet Driver Specification
Range:  INT 20 to INT FF
Notes:  The handler for the interrupt will start with a 3-byte jump
          instruction, followed by the ASCIZ string "PKT DRVR" (the
          terminating NUL is significant).
        To find the interrupt being used by the driver, an application should
          scan through interrupt vectors 20h to FFh (60h through 80h for
          v1.09- of the specification) until it finds one with the "PKT DRVR"
          string.
        AH values of 80h to FFh have been reserved for user-defined additions.
-=------

so turn each interrupt vector into a pchar and go looking for one where
((pchar)vector)+3 = "PKT DRVR"

when you find one that matches that's the interrupt to use...

 -=> Bye <=-

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 * Origin: The point of no linefeed (3:640/531.42)

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