TCP/IP Sockets in C

by Donahoo; Calvert

• ISBN13: 9780123745408
• ISBN10: 0123745403
• Edition: 2nd
• Format: Paperback
• Copyright: 2009-03-17
• Publisher: Elsevier Science

Summary

Written by two experienced networking instructors, this text's focused, tutorial-based approach enables the reader to master the tasks and techniques essential to virtually all client-server projects using sockets in C.

Author Biography

Michael J. Donahoo teaches networking on the undergraduate and graduate level at Baylor University, Where he is an associate professor. He has authored Socket programming books for a variety of languages and an SQL book. Kenneth L. Calvert is a professor at the University of Kentucky, where he teaches and researches computer network systems. He has been writing socket programs with TCP/IP for almost twenty years.

Table of Contents

Preface to the Second Edition	p. ix
Introduction	p. 1
Networks, Packets, and Protocols	p. 1
About Addresses	p. 4
Writing Down IP Addresses	p. 4
Dealing with Two Versions	p. 5
Port Numbers	p. 5
Special Addresses	p. 6
About Names	p. 7
Clients and Servers	p. 7
What Is a Socket?	p. 8
Basic TCP Sockets	p. 11
IPv4 TCP Client	p. 11
IPv4 TCP Server	p. 17
Creating and Destroying Sockets	p. 22
Specifying Addresses	p. 23
Generic Addresses	p. 23
IPv4 Addresses	p. 24
IPv4 Addresses	p. 24
Generic Address Storage	p. 25
Binary/String Address Conversion	p. 26
Getting a Socket's Associated Addresses	p. 26
Connecting a Socket	p. 27
Binding to an Address	p. 27
Handling Incoming Connections	p. 28
Communication	p. 30
Using IPv6	p. 30
Of Names and Address Families	p. 35
Mapping Names to Numbers	p. 35
Accessing the Name Service	p. 36
Details, Details	p. 40
Writing Address-Generic Code	p. 41
Generic TCP Client	p. 43
Generic TCP Server	p. 46
IPv4-IPv6 Interoperation	p. 49
Getting Names from Numbers	p. 50
Using UDP Sockets	p. 53
UDP Client	p. 54
UDP Server	p. 57
Sending and Receiving with UDP Sockets	p. 60
Connecting a UDP Socket	p. 61
Sending and Receiving Data	p. 63
Encoding Integers	p. 64
Sizes of Integers	p. 64
Byte Ordering	p. 66
Signedness and Sign Extension	p. 67
Encoding Integers by Hand	p. 68
Wrapping TCP Sockets in Streams	p. 71
Structure Overlays: Alignment and Padding	p. 73
Strings and Text	p. 76
Bit-Diddling: Encoding Booleans	p. 78
Constructing, Framing, and Parsing Messages	p. 79
Framing	p. 86
Text-Based Message Encoding	p. 91
Binary Message Encoding	p. 94
Putting It All Together	p. 96
Wrapping Up	p. 97
Beyond Basic Socket Programming	p. 99
Socket Options	p. 99
Signals	p. 100
Nonblocking I/O	p. 106
Nonblocking Sockets	p. 107
Asynchronous I/O	p. 108
Timeouts	p. 112
Multitasking	p. 116
Per-Client Processes	p. 117
Per-Client Thread	p. 123
Constrained Multitasking	p. 126
Multiplexing	p. 128
Multiple Recipients	p. 133
Broadcast	p. 134
Multicast	p. 137
Broadcast vs. Multicast	p. 142
Under the Hood	p. 143
Buffering and TCP	p. 145
Deadlock Danger	p. 148
Performance Implications	p. 149
TCP Socket Life Cycle	p. 150
Connecting	p. 150
Closing a TCP Connection	p. 154
Demultiplexing Demystified	p. 158
Socket Programming in C++	p. 161
PracticalSocket Library Overview	p. 162
Plus One Service	p. 164
Plus One Server	p. 164
Plus One Client	p. 166
Running Server and Client	p. 168
Survey Service	p. 168
Survey Support Functions	p. 169
Survey Server	p. 172
Survey Client	p. 176
Running Server and Client	p. 178
Survey Service, Mark 2	p. 178
Socket Address Support	p. 179
Socket Iostream Interface	p. 180
Enhanced Survey Server	p. 181
Enhanced Survey Client	p. 186
Administrative Client	p. 187
Running Server and Clients	p. 188
References	p. 191
Index	p. 193
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