Reading BIOS on PC under UNIX ??

[Peter Lengewitz]

Hi.

Does someone know if and how it is possible to access the contents of
the BIOS of a PC'386 via C program under UNIX (Interactive UNIX and
SCO UNIX)?

I would like to get a few informations out of the BIOS, e.g. the version
number, to calculate a checksum. The idea is to make a software package 
executable only on one PC.

Any solutions?
Any C programs ?
Any other solutions to protect software from running on several PC's?

Thanks.
           Peter.