Windows tcp socket

If you're uncommonly sharp, you may have noticed two extra API below send and receive extra credit if you did! These two API allow you to communicate with any one remote computer without tipping your hand to everyone else that is connected. This is an important skill to know if you are building a full-fledged chat program, or something similar, but beyond giving you the basic idea of how these functions work, I'll let you figure them out on your own.

Don't you hate it when authors say that? Usually, it's because we don't have the slightest clue ourselves … but really, it shouldn't take much to implement them if you decide that you need to. Well, by now, you should have a decent understanding of Windows sockets — or a profound hatred of them — but at any rate, if you're looking for a much better explanation than I can give you here, please take a look at the example source code provided with this article.

Practice will do much more for you than reading any article. Additionally, I have found that if you try to copy and paste code, or just compiling someone else's code you found on the Internet, you won't come close to the level of understanding you will gain if you type in all the examples by hand yourself.

A big pain, I know! But if you take the time to do it, you'll save yourself a lot of trouble in the long run. It is provided free of charge for the benefit of the public. You are allowed, however, to make and distribute as many copies of it as you like, provided you do not modify the original content in any way.

This article, along with any associated source code and files, is licensed under The Creative Commons Attribution-ShareAlike 2. Sign in Email. Forgot your password? Search within: Articles Quick Answers Messages. Stats 1. Please Sign up or sign in to vote. Download demo project - What the Heck are Threads, Ports, and Sockets?

Internet Explorer etc. Each chat program varies, as there is no specific "chat" service and multiple messaging programs may run at the same time When you're sending your email, you and the remote mail server are communicating using port 25 And, when you receive email, your mail client such as Microsoft Outlook uses port to retrieve your mail from the mail server And onward extends the list. Copy Code. Member Jul Member Apr Karlis8 Sep R ido Nov MohsenFM Nov User 9-Nov Sam L 9-May Member 2-Oct GhabXPH 4-Aug Ali Reza Barkhordari Jun Member Jun Sun of Re Apr EJP 2-Apr Question Marks 9-Jul EJP 9-Aug Dilip K Sharma Mar Go to top.

Layout: fixed fluid. United States. First Prev Next. Member Awesome explanation.. Thanks a lot!! Multi conection int a FIFO structure? Your code works nice, now i need to apply it in a First In First Out structure, i'm wondering if this code could allowing multi conection to the same listener as server and the server resend to many conections, as a chat.

Great post! It's clearly explained. RECV Function is waiting for a long time.. Pls help aruzhere Mar I have set up the socket and connection to the socket has been established. But when the execution of program leads to the recv funtion; it is waiting forever. Please help. My vote of 3 Karlis8 Sep Gives decent overall picture, but content about listen and send is very misleading.

Excellent article! Thank you for explaining socket programming so clearly! Can we get a. That will be very helpful.

Re: sln file parikshitnangre Nov Also there is a password for the word file in zip folder. What is the password? My vote of 5 R ido Nov Great explanation, thanks, you've saved me a lot of time!

My vote of 5 User 9-Nov User I'm late But your article helped me to understand the Basics. Thank you. Bruno modified Jan pm. My Vote Sam L 9-May Much helpful article for Socket programming novice, Thank you. My vote of 3 Member 2-Oct Title says all. Excellent article kamleshj 1-Aug Thanks for posting this article. Explained very nicely and easy to understand even for beginners.

My vote of 5 Ali Reza Barkhordari Jun Ali Reza Barkhordari. Thanks very much,This article is what that i am looking for. Error while copying code to Codeblocks Sun of Re Apr Hi all, I am getting the following error when trying to run the code.

I have only copied the code up to, "Before you move on, type this code up and give it a try. Extrremely unreliable article. You will quickly find out when you attempt it that your program will freeze until an incoming connection is made No, you won't find that out.

Other Winsock providers may not support the use of raw sockets. For example, all applications listening for a specific protocol will receive all packets received for this protocol. This may not be what is desired for multiple applications using a protocol. This is also not suitable for high-performance applications. To get around these issues, it may be required to write a Windows network protocol driver device driver for the specific network protocol. The network protocol would then be added to the Winsock catalog as a supported protocol.

This allows multiple applications to open sockets for this specific protocol and the device driver can keep track of which socket receives specific packets and errors. Applications also need to be aware of the impact that firewall settings may have on sending and receiving packets using raw sockets. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info.

Contents Exit focus mode. Please rate your experience Yes No. Any additional feedback? It was later adapted for Windows in Windows Sockets 1. Familiarity with Windows networking is required. Windows Sockets 2 can be used on all Windows platforms.

Where certain implementations or capabilities of Windows Sockets 2 platform restrictions do exist, they are clearly noted in the documentation. Quality of Service. Skip to main content. This browser is no longer supported.