Comments on: A Simple C++/SDL_Net Chat Server & Client

By: A simple C++/SDL_net chat server & client rewritten | r3dux.org

A simple C++/SDL_net chat server & client rewritten | r3dux.org — Fri, 25 Nov 2011 06:28:12 +0000

[...] deal with network programming with sockets and stuff, so I duly did my research and put together a simple chat server and client in SDL_net. And then my classes changed and I got moved on to teach other stuff. I wasn’t too [...]

By: r3dux

r3dux — Thu, 17 Nov 2011 07:25:29 +0000

Thanks – and glad you’ve found it useful.

I’d love to take a look sometime if you do anything cool with it! =D

By: ComputerCowboy

ComputerCowboy — Wed, 16 Nov 2011 20:45:54 +0000

this code was so well designed that i added sdl to it and made it a regular, non terminal code with minimal effort. I hope you do get teaching gigs cuz you are a good example.

By: Su

Su — Sun, 13 Nov 2011 15:29:16 +0000

hi Sir, after looking at some example of C++ and socket programming, i already successful modify the client code to ask for user name and broadcast it together with the message.. The received message will be like this

Received: My message :User Name /Client Name

That is the best that i can do..

Thanks for the clue.. i really appreciate it..
Cheers!

By: r3dux

r3dux — Thu, 03 Nov 2011 06:00:29 +0000

Easiest way to do this is to modify the client to ask for a username (i.e. who is using the client) and then just prepend that username to each message sent from the client.

By: Su

Su — Thu, 03 Nov 2011 01:20:08 +0000

Sir, i have try this program using LAN and the program work great.. We can communicate with each other. but i have something to adjust. for this program, at client side we wouldn’t know the message is sent by which client. If we have multiple client, we are going to have a little bit problem to detect which client sent the message.Only the server know who is sending the message. But never mind. I will configure it out and will let you know the progress. Thanks a lot Sir/Teacher

By: r3dux

r3dux — Tue, 01 Nov 2011 09:46:35 +0000

1 – The server CAN tell which client sent which message – it needs to know so that it can broadcast the message to all the other clients. You can even see in the server output that it says “Received [some message] from client [some client number]“.

2 – Each client already has its own (unique) randomly assigned port. To see which ports the client(s) are using, try using the command:

netstat --tcp | grep 1234

This will find all tcp sockets which are currently open on the machine, and the “1234″ bit is the default port number of the server.

If you want to assign specific ports to clients, then you’ll have to look up how to do that in the SDL_net documentation.

Best of luck.

By: loh

loh — Tue, 01 Nov 2011 07:55:37 +0000

I’m quite interesting to the server- multiple client program..may I know if all client simultaneously click the Enter after type the message then the server cant detect which client sent, correct??

May I know isn’t need to allocate different port to different client?? I’m new to ubuntu and chat programming..may I know which part of the above program need to modify in order using different port for each client??

Thanks a lot for the help…
Just wonder if using different port the program can work @@

By: Su

Su — Fri, 28 Oct 2011 00:07:48 +0000

can i have your name to put in my reference together with your website address. if u don’t want to reveal your name here may be u can email me..anis152003@yahoo.com. thanks a lot ..sir/madam. actually i’m doing this for my Laboratory.. I’m university Student. I take electric telecommunication and this is my final year. Since i have only 3 week to complete this and i know nothing about socket programming and UBUNTU, so i just take your example. Hope u don’t mind

By: Su

Su — Thu, 27 Oct 2011 23:41:43 +0000

. orite.. thanks for ur reply.. i have learn a lot from u.. i will try my best to fix this thing.. thank u very much.. may god bless u..