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Linux System Programming Techniques

You're reading from   Linux System Programming Techniques Become a proficient Linux system programmer using expert recipes and techniques

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Product type Paperback
Published in May 2021
Publisher Packt
ISBN-13 9781789951288
Length 432 pages
Edition 1st Edition
Tools
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Author (1):
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Jack-Benny Persson Jack-Benny Persson
Author Profile Icon Jack-Benny Persson
Jack-Benny Persson
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Toc

Table of Contents (14) Chapters Close

Preface 1. Chapter 1: Getting the Necessary Tools and Writing Our First Linux Programs 2. Chapter 2: Making Your Programs Easy to Script FREE CHAPTER 3. Chapter 3: Diving Deep into C in Linux 4. Chapter 4: Handling Errors in Your Programs 5. Chapter 5: Working with File I/O and Filesystem Operations 6. Chapter 6: Spawning Processes and Using Job Control 7. Chapter 7: Using systemd to Handle Your Daemons 8. Chapter 8: Creating Shared Libraries 9. Chapter 9: Terminal I/O and Changing Terminal Behavior 10. Chapter 10: Using Different Kinds of IPC 11. Chapter 11: Using Threads in Your Programs 12. Chapter 12: Debugging Your Programs 13. Other Books You May Enjoy

Unix socket – creating the server

Unix sockets are similar to TCP/IP sockets, but they are only local and are represented by a socket file on the filesystem. But the overall functions that are used with Unix sockets are more or less the same as for TCP/IP sockets. The complete name for Unix sockets is Unix domain sockets.

Unix sockets are a common way for programs to communicate locally on a machine.

Knowing how to use Unix sockets will make it easier to write programs that need to communicate between them.

Getting ready

In this recipe, you'll only need the GCC compiler, the Make tool, and the generic Makefile.

How to do it…

In this recipe, we'll write a program that will act as a server. It will receive messages from a client and respond with "Message received" every time a message is received. It will also clean up after itself when either the server or the client exits. Let's get started:

  1. Write the following code in...
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