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

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 libssh library installed. See Appendix BSetting Up Your C Compiler on WindowsAppendix CSetting Up Your C Compiler on Linux, and Appendix DSetting Up Your C Compiler on macOS, for compiler setup and libssh 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
cd Hands-On-Network-Programming-with-C/chap11

Each example program in this chapter runs on Windows, Linux, and macOS.

Each example needs to be linked against the libssh library. This is accomplished by passing the -lssh option to gcc.

We provide the exact commands needed to compile each example as it is introduced...