Compaq TCP/IP Services for OpenVMS
Sockets API and System Services Programming

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Contents (summary)
Preface	Preface
Chapter 1	Application Programming Interfaces
Chapter 2	Writing Network Applications
Chapter 3	Using the Sockets API
Chapter 4	Sockets API Reference
Chapter 5	Using the $QIO System Service
Chapter 6	OpenVMS System Services Reference
Appendix A	Socket Options
Appendix B	IOCTL Requests
Appendix C	Data Types
Appendix D	Error Codes
Appendix E	Programming Examples
	Index
	Figures
	Examples
	Tables

Contents

Preface

Preface Preface

Chapter 1

1 Application Programming Interfaces

     1.1     BSD Sockets

     1.2     OpenVMS System Services

     1.3     Application Development Files

         1.3.1         Definition Files

         1.3.2         Libraries

         1.3.3         Programming Examples

     1.4     Compiling and Linking Compaq's C Language Programs

         1.4.1         Compiling and Linking Programs Using BSD Version 4.4

         1.4.2         Compaq C Compilation Warnings

     1.5     Using 64-Bit Addresses (Alpha Only)

Chapter 2

2 Writing Network Applications

     2.1     The Client/Server Communication Process

         2.1.1         Using the TCP Protocol

         2.1.2         Using the UDP Protocol

     2.2     Creating a Socket

         2.2.1         Creating Sockets (Sockets API)

         2.2.2         Creating Sockets (System Services)

     2.3     Binding a Socket (Optional for Clients)

         2.3.1         Binding a Socket (Sockets API)

         2.3.2         Binding a Socket (System Services)

     2.4     Making a Socket a Listener (TCP Protocol)

         2.4.1         Setting a Socket to Listen (Sockets API)

         2.4.2         Setting a Socket to Listen (System Services)

     2.5     Initiating a Connection (TCP Protocol)

         2.5.1         Initiating a Connection (Sockets API)

         2.5.2         Initiating a Connection (System Services)

     2.6     Accepting a Connection (TCP Protocol)

         2.6.1         Accepting a Connection (Sockets API)

         2.6.2         Accepting a Connection (System Services)

     2.7     Getting Socket Options

         2.7.1         Getting Socket Information (Sockets API)

         2.7.2         Getting Socket Information (System Services)

     2.8     Setting Socket Options

         2.8.1         Setting Socket Options (Sockets API)

         2.8.2         Setting Socket Options (System Services)

     2.9     Reading Data

         2.9.1         Reading Data (Sockets API)

         2.9.2         Reading Data (System Services)

     2.10     Receiving IP Multicast Datagrams

     2.11     Reading Out-of-Band Data (TCP Protocol)

         2.11.1         Reading OOB Data (Sockets API)

         2.11.2         Reading OOB Data (System Services)

     2.12     Peeking at Queued Messages

         2.12.1         Peeking at Data (Sockets API)

         2.12.2         Peeking at Data (System Services)

     2.13     Writing Data

         2.13.1         Writing Data (Sockets API)

         2.13.2         Writing Data (System Services)

     2.14     Writing OOB Data (TCP Protocol)

         2.14.1         Writing OOB Data (Sockets API)

         2.14.2         Writing OOB Data (System Services)

     2.15     Sending Datagrams (UDP Protocol)

         2.15.1         Sending Datagrams (System Services)

         2.15.2         Sending Broadcast Datagrams (Sockets API)

         2.15.3         Sending Broadcast Datagrams (System Services)

         2.15.4         Sending Multicast Datagrams

     2.16     Using the Berkeley Internet Name Domain Service

         2.16.1         BIND Lookups (Sockets API)

         2.16.2         BIND Lookups (System Services)

     2.17     Closing and Deleting a Socket

         2.17.1         Closing and Deleting (Sockets API)

         2.17.2         Closing and Deleting (System Services)

     2.18     Shutting Down Sockets

         2.18.1         Shutting Down a Socket (Sockets API)

         2.18.2         Shutting Down a Socket (System Services)

     2.19     Canceling I/O Operations

Chapter 3

3 Using the Sockets API

     3.1     Internet Protocols

         3.1.1         TCP Sockets

             3.1.1.1             Wildcard Addressing

         3.1.2         UDP Sockets

     3.2     Structures

         3.2.1         hostent Structure

         3.2.2         in_addr Structure

         3.2.3         iovec Structure

         3.2.4         linger Structure

         3.2.5         msghdr Structure

             3.2.5.1             BSD Version 4.4

             3.2.5.2             BSD Version 4.3

         3.2.6         netent Structure

         3.2.7         sockaddr Structure

             3.2.7.1             BSD Version 4.4

             3.2.7.2             BSD Version 4.3

         3.2.8         sockaddr_in Structure

         3.2.9         timeval Structure

     3.3     Header Files

     3.4     Calling a Socket Function from an AST State

     3.5     Standard I/O Functions

     3.6     Event Flags

     3.7     Error Checking: errno Values

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