Inside Macintosh: Networking With Open Transport / Part 2 - Open Transport Reference

Chapter 30 - AppleTalk Reference / ADSP Reference

Options

In order to use any option with ADSP, you must indicate which protocol the option is intended for. To do this, you use a constant for the ADSP protocol in the level field of the TOption structure when you specify an option.

#define ATK_ADSP  'ADSP '

ADSP also allows you to use the OPT_ENABLEEOM and the OPT_CHECKSUM options, which are described in "The End-of-Message Option" and in "The Checksum Option".