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Inside Macintosh: Open Transport /


Chapter 11 - AppleTalk Service Providers

The AppleTalk service provider is an Open Transport provider that gives you access to zone and node information functions that are specific to the AppleTalk protocol family. AppleTalk networks use zones to define logical groups of users, and there are several Open Transport functions you can use to determine your endpoint's zone and the zone or zones in your endpoint's network. Open Transport also provides a function that can supply information about your endpoint's AppleTalk environment. To use these functions, you must create a specialized Open Transport provider: an AppleTalk service provider.

The AppleTalk service provider is able to provide information about zones by implementing a subset of the Zone Information Protocol (ZIP), which maps network numbers to zone names for all networks belonging to an AppleTalk internet.

This chapter describes the AppleTalk service provider functions. You should read this chapter if you want to obtain

For an overview of the AppleTalk service provider and how it fits within the AppleTalk protocol stack, read the chapter "Introduction to AppleTalk" in this book. Zones are part of the NBP name used in the NBP address format; for more information on this format, read the chapter "AppleTalk Addressing" in this book. For a detailed description of the ZIP specification, see Inside AppleTalk, second edition.


Chapter Contents
About AppleTalk Service Providers
Using AppleTalk Service Providers
Obtaining AppleTalk Service Providers
Working With AppleTalk Zones
Getting the Name of Your Application's Zone
Getting a List of Zone Names for Your Local Network or Internet
Getting Information About Your Current AppleTalk Environment
AppleTalk Service Provider Reference
Constants and Data Types
Completion Event Constants
The AppleTalk Information Structure
Functions
Opening an AppleTalk Service Provider
Obtaining Information About Zones
Obtaining Information About Your AppleTalk Environment

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© Apple Computer, Inc.
15 AUG 1996



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