Book Image

Hands-On Network Programming with C

By : Lewis Van Winkle
Book Image

Hands-On Network Programming with C

By: Lewis Van Winkle

Overview of this book

Network programming enables processes to communicate with each other over a computer network, but it is a complex task that requires programming with multiple libraries and protocols. With its support for third-party libraries and structured documentation, C is an ideal language to write network programs. Complete with step-by-step explanations of essential concepts and practical examples, this C network programming book begins with the fundamentals of Internet Protocol, TCP, and UDP. You’ll explore client-server and peer-to-peer models for information sharing and connectivity with remote computers. The book will also cover HTTP and HTTPS for communicating between your browser and website, and delve into hostname resolution with DNS, which is crucial to the functioning of the modern web. As you advance, you’ll gain insights into asynchronous socket programming and streams, and explore debugging and error handling. Finally, you’ll study network monitoring and implement security best practices. By the end of this book, you’ll have experience of working with client-server applications and be able to implement new network programs in C. The code in this book is compatible with the older C99 version as well as the latest C18 and C++17 standards. You’ll work with robust, reliable, and secure code that is portable across operating systems, including Winsock sockets for Windows and POSIX sockets for Linux and macOS.
Table of Contents (26 chapters)
Title Page
About Packt

Technical requirements

This chapter continues where Chapter 9, Loading Secure Web Pages with HTTPS and OpenSSL, left off. This chapter continues to use the OpenSSL library. It is imperative that you have the OpenSSL library installed and that you know the basics of programming with OpenSSL. Refer to Chapter 9Loading Secure Web Pages with HTTPS and OpenSSL, for basic information about OpenSSL.

The example programs from this chapter can be compiled using any modern C compiler. We recommend MinGW for Windows and GCC for Linux and macOS. You also need to have the OpenSSL library installed. See Appendix B, Setting Up Your C Compiler on Windows; Appendix C, Setting Up Your C Compiler on Linux; and Appendix D, Setting Up Your C Compiler on macOS, for compiler setup and OpenSSL installation.

The code for this book can be found at

From the command line, you can download the code for this chapter by using the following command:

git clone...