TCP/IP Sockets in C, 2nd Edition

Chapter 2 Basic TCP Sockets

It’s time to learn about writing your own socket applications. We’ll start with TCP. By now you’re probably ready to get your hands dirty with some actual code, so we begin by going through a working example of a TCP client and server. Then we present the details of the socket API used in basic TCP. To keep things simpler, we’ll present code initially that works for one particular version of IP: IPv4, which at the time this is being written is still the dominant version of the Internet Protocol, by a wide margin. At the end of this chapter we present the (minor) modifications required to write IPv6 versions of our clients and servers. In Chapter 3 we will demonstrate the creation of protocol-independent applications. ...