Here is my learning on socket programing. Based on a book called TCP/IP网络编程 (ISBN 9787115358851).

The code is in c and not cross-platform. Here is code for linux. See the code for windows here.

Most code is based on the book's chapter example code (Not all example code is contained). And I may have adjusted the code style based on my own habit or added some adjustment. I'm following under_score_case naming convention for the linux code.

To run the code, typically you need to run the server and its corresponding client to see the effect. Take chapter1 for example. You need to:

cd chapter1
gcc hello_server.c -o hello_server -Wall
gcc hello_client.c -o hello_client -Wall
./hello_server
./hello_client

Else you can open the project with VSCode and run the code with my setting. Just to launch the target "${fileBasenameNoExtension}" is fine.

Server serves at port 9190 by default, you can configure it by running like ./hello_server 9190.

Client connect to 127.0.0.1:9190 by default, you can configure it by running like ./hello_client 127.0.0.1 9190.

gcc --version:

gcc (Ubuntu 11.3.0-1ubuntu1~22.04) 11.3.0
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.