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Hands-On Network Programming with C

You're reading from   Hands-On Network Programming with C Learn socket programming in C and write secure and optimized network code

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Product type Paperback
Published in May 2019
Publisher Packt
ISBN-13 9781789349863
Length 478 pages
Edition 1st Edition
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Author (1):
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Lewis Van Winkle Lewis Van Winkle
Author Profile Icon Lewis Van Winkle
Lewis Van Winkle
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Table of Contents (25) Chapters Close

Preface 1. Section 1 - Getting Started with Network Programming FREE CHAPTER
2. Introducing Networks and Protocols 3. Getting to Grips with Socket APIs 4. An In-Depth Overview of TCP Connections 5. Establishing UDP Connections 6. Hostname Resolution and DNS 7. Section 2 - An Overview of Application Layer Protocols
8. Building a Simple Web Client 9. Building a Simple Web Server 10. Making Your Program Send Email 11. Section 3 - Understanding Encrypted Protocols and OpenSSL
12. Loading Secure Web Pages with HTTPS and OpenSSL 13. Implementing a Secure Web Server 14. Establishing SSH Connections with libssh 15. Section 4 - Odds and Ends
16. Network Monitoring and Security 17. Socket Programming Tips and Pitfalls 18. Web Programming for the Internet of Things 19. Answers to Questions 20. Setting Up Your C Compiler on Windows 21. Setting Up Your C Compiler on Linux 22. Setting Up Your C Compiler on macOS 23. Example Programs 24. Other Book You May Enjoy

An In-Depth Overview of TCP Connections

In Chapter 2, Getting to Grips with Socket APIs, we implemented a simple TCP server that served a web page with HTTP. In this chapter, we will begin by implementing a TCP client. This client is able to establish an IPv4 or IPv6 TCP connection with any listening TCP server. It will be a useful debugging tool that we can reuse in the rest of this book.

Our TCP server from the last chapter was limited to accepting only one connection. In this chapter, we will look at multiplexing techniques to allow our programs to handle many separate connections simultaneously.

The following topics are covered in this chapter:

  • Configuring a remote address with getaddrinfo()
  • Initiating a TCP connection with connect()
  • Detecting terminal input in a non-blocking manner
  • Multiplexing with fork()
  • Multiplexing with select()
  • Detecting peer disconnects
  • Implementing...
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