Chapter 16 Socket Interface

CONTENTS SOME DEFINITIONS SOCKETS BYTE ORDERING ADDRESS TRANSFORMATION BYTE MANIPULATION FUNCTIONS INFORMATION ABOUT REMOTE HOST SOCKET SYSTEM CALLS CONNECTIONLESS ITERATIVE SERVER

CONTENTS (continued) UDP CLIENT-SERVER PROGRAMS CONNECTION-ORIENTED CONCURRENT SERVER TCP CLIENT-SERVER PROGRAMS

16.1 SOME DEFINITIONS

Figure 16-1 Data types

Internet address structure Figure 16-2 Internet address structure

16.2 SOCKETS

Figure 16-3 Socket address

Figure 16-4 Socket structure

Figure 16-5 Socket types

16.3 BYTE ORDERING

Figure 16-6 Big-endian byte order

Little-endian byte order Figure 16-7 Little-endian byte order

The byte order for the TCP/IP protocol suite is big endian.

Bite-order transformation Figure 16-8 Bite-order transformation

Declarations for byte-order transformation Figure 16-9 Declarations for byte-order transformation

ADDRESS TRANSFORMATION 16.4 ADDRESS TRANSFORMATION

Address transformation Figure 16-10 Address transformation

Declarations for address transformation functions Figure 16-11 Declarations for address transformation functions

BYTE MANIPULATION FUNCTIONS 16.5 BYTE MANIPULATION FUNCTIONS

Declarations for byte-manipulation Figure 16-12 Declarations for byte-manipulation functions

INFORMATION ABOUT REMOTE 16.6 INFORMATION ABOUT REMOTE HOST

Declaration for gethostbyname Figure 16-13 Declaration for gethostbyname

Figure 16-14 Hostent structure

16.7 SOCKET SYSTEM CALLS

Declaration for socket function Figure 16-15 Declaration for socket function

Declaration for bind function Figure 16-16 Declaration for bind function

Declaration for connect function Figure 16-17 Declaration for connect function

Declaration for listen function Figure 16-18 Declaration for listen function

Declaration for accept function Figure 16-19 Declaration for accept function

Declaration for sendto function Figure 16-20 Declaration for sendto function

Declaration for recvfrom function Figure 16-21 Declaration for recvfrom function

Declaration for read function Figure 16-22 Declaration for read function

Declaration for write function Figure 16-23 Declaration for write function

Declaration for close function Figure 16-24 Declaration for close function

CONNECTIONLESS ITERATIVE 16.8 CONNECTIONLESS ITERATIVE SERVER

Socket interface for connectionless iterative server Figure 16-25 Socket interface for connectionless iterative server

16.9 UDP CLIENT-SERVER PROGRAMS

16.10 CONNECTION-ORIENTED CONCURRENT SERVER

for connection-oriented Figure 16-26 Socket interface for connection-oriented concurrent server

Figure 16-26 (repeated), Part I

Figure 16-26 (repeated), Part II

Figure 16-27, Part I Client and Server

Figure 16-27, Part II