
About This Book
This book tries to outline how to write an IPv6-capable application on a UNIX socket
API, or how to update your IPv4 application to be IPv6-capable. The book tries to
show portable and secure ways to achieve these goals.
Write Portable Application Programs
There are a large number of platforms that support socket API for network program-
ming. When you write an application on top of socket API, you will want to see your
program work on as many platforms as possible. Therefore, portability is an important
factor in application programming. As many of you already know, there are many
UNIX-like operating systems, ...