HP TCPIP Services for OpenVMS ONC RPC Programming

This document, "HP TCP/IP Services for OpenVMS ONC RPC Programming (Version 5.5, January 2005)," is a manual for experienced programmers developing network applications using Open Network Computing (ONC) Remote Procedure Calls (RPCs) on HP OpenVMS systems (I64, Alpha, and VAX).

The manual provides an overview of high-level RPC programming, detailing the RPC programming interface and the use of the RPCGEN protocol compiler to create applications. Key topics include:

• Introduction to ONC RPC: Explains the RPC model, procedure versions, the Portmapper service for determining destination port numbers, and RPC's independence from underlying transport protocols (UDP/IP and TCP/IP).
• Writing RPC Applications with RPCGEN: Guides users on employing the RPCGEN protocol compiler to automatically generate client and server RPC code, including External Data Representation (XDR) routines. It also covers debugging, C preprocessor usage, and RPC language syntax.
• RPC Application Programming Interface: Details the different layers of the RPC programming interface (middle and lowest), XDR serialization defaults, raw RPC, and other features such as batching and client authentication.
• External Data Representation (XDR): Describes the XDR standard and its library, which enable C programmers to describe and translate arbitrary data structures in a system-independent way for network transmission.
• Comprehensive Routine References: Provides detailed descriptions and usage of ONC RPC client routines, Portmapper routines, server routines, and XDR routines.