tutorial

RPG IV Socket TutorialScott KlementRPG IV Socket Tutorialby Scott KlementCopyright © 2001, 2002 by Scott KlementThis tutorial strives to teach network programming using sockets to AS/400 or iSeries programmers who use theRPG IV programming language.It is assumed that the reader of this tutorial is already familiar with the RPG IV language, including the use ofprototypes, subprocedures, service programs and pointers in an RPG IV environment.Table of Contents1. Introduction to TCP and Sockets ............................................................................................................................11.1. TCP/IP Concepts and Terminology................................................................................................................11.2. Overview of a TCP communications session.................................................................................................32. Looking up host names & services ..........................................................................................................................62.1. Services and Ports ..........................................................................................................................................62.2. Host names and addresses ..............................................................................................................................83. Socket API calls to create our first client program.................................. ...