Network Working Group R. Srinivasan
Request for Comments: 1832 Sun Microsystems
Category: Standards Track August 1995
XDR: External Data Representation Standard
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
ABSTRACT
This document describes the External Data Representation Standard
(XDR) protocol as it is currently deployed and accepted.
TABLE OF CONTENTS
1. INTRODUCTION 2
2. BASIC BLOCK SIZE 2
3. XDR DATA TYPES 3
3.1 Integer 3
3.2 Unsigned Integer 4
3.3 Enumeration 4
3.4 Boolean 4
3.5 Hyper Integer and Unsigned Hyper Integer 4
3.6 Floating-point 5
3.7 Double-precision Floating-point 6
3.8 Quadruple-precision Floating-point 7
3.9 Fixed-length Opaque Data 8
3.10 Variable-length Opaque Data 8
3.11 String 9
3.12 Fixed-length Array 10
3.13 Variable-length Array 10
3.14 Structure 11
3.15 Discriminated Union 11
3.16 Void 12
3.17 Constant 12
3.18 Typedef 13
3.19 Optional-data 14
3.20 Areas for Future Enhancement 15
4. DISCUSSION 15
5. THE XDR LANGUAGE SPECIFICATION 17
5.1 Notational Conventions 17
Srinivasan Standards Track