Socket programming (how to program Telnet friendly sockets....)in C++ for MUD type games
I have done an small app that should act as an MUD server in future, i have only programmed things like an socket accepting connections and multithreading stuff. But there is an problem!
The server crashes when i have connected with an standard Telnet client and typing a character,
the Telnet client sends the typed character immedlity and not as an string.
I have followed an tutorial that shows how to programm sockets etc.. and i have done one server and one client app that works perfectly together, but i also want the server to be compatible with Telnet. I cannot find any tutorial that cover how to do an Telnet compatible socket, is there any special arguments needed, data types or some sort of emulation?
Another thing, i have an Main loop and an socket-function pending as an Thread, I have tried to do an function to send data to the client but have failed. Is there some way to read some data(from a file, variable etc..) and send it to the client thro the Main loop, for example.
//Main Loop
for(;;)
{
if(QUIT)
break;
check for incoming data();
load some data from a file or some variable....();
send data to client();
}
I want the app to be capable to get an string from the client and send some back to it, and it should be Telnet compatible. The main function of the app is to function like an MUD!
The app is only for learning , if could mail the code if you(The helper) need it to help me...
And some good links to MUD programming tutorials should be great.!
The server crashes when i have connected with an standard Telnet client and typing a character,
the Telnet client sends the typed character immedlity and not as an string.
I have followed an tutorial that shows how to programm sockets etc.. and i have done one server and one client app that works perfectly together, but i also want the server to be compatible with Telnet. I cannot find any tutorial that cover how to do an Telnet compatible socket, is there any special arguments needed, data types or some sort of emulation?
Another thing, i have an Main loop and an socket-function pending as an Thread, I have tried to do an function to send data to the client but have failed. Is there some way to read some data(from a file, variable etc..) and send it to the client thro the Main loop, for example.
//Main Loop
for(;;)
{
if(QUIT)
break;
check for incoming data();
load some data from a file or some variable....();
send data to client();
}
I want the app to be capable to get an string from the client and send some back to it, and it should be Telnet compatible. The main function of the app is to function like an MUD!
The app is only for learning , if could mail the code if you(The helper) need it to help me...
And some good links to MUD programming tutorials should be great.!
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
MaStA_Da_Vinci,
another site worth to look at is http://www.scit.wlv.ac.uk/~jphb/comms/telnet.html
another site worth to look at is http://www.scit.wlv.ac.uk/~jphb/comms/telnet.html
ASKER
Hi!
I think it have something with Telnet's STREAM functions, I have heard that Telnet have varius ways to send data. It could be possible that i send the wrong arguments to the client that tell Telnet to send every typed character!
I have found some Servers written in C++ that work with telnet, but they use some libarys i don't have and that i don't think is neccesary.
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
I think these is to handle the TCP/IP, none of the problem i have.
And i think i doesn't have them, Iam using Ms Visual Studio 2003 Trial!
It could be some headerfiles used in Linux, iam also programming in Linux to but i decided to learn sockets in windows first.
There could be some other way to handle the incoming data, iam using th function recv() th get data from the client and save it to an (array)buffer[] of "messagesize". I shouldn't need to get a single char at the time, i should be able to get an string but Telnet sends imm when an button i pressed.
I could do an function that store single char's into an array and later compare it with Specified commands in another array, then i have an simple parser but very complicated.
I think it have something with Telnet's STREAM functions, I have heard that Telnet have varius ways to send data. It could be possible that i send the wrong arguments to the client that tell Telnet to send every typed character!
I have found some Servers written in C++ that work with telnet, but they use some libarys i don't have and that i don't think is neccesary.
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
I think these is to handle the TCP/IP, none of the problem i have.
And i think i doesn't have them, Iam using Ms Visual Studio 2003 Trial!
It could be some headerfiles used in Linux, iam also programming in Linux to but i decided to learn sockets in windows first.
There could be some other way to handle the incoming data, iam using th function recv() th get data from the client and save it to an (array)buffer[] of "messagesize". I shouldn't need to get a single char at the time, i should be able to get an string but Telnet sends imm when an button i pressed.
I could do an function that store single char's into an array and later compare it with Specified commands in another array, then i have an simple parser but very complicated.
ASKER
Hmm...!
Thats sound intressting, iam going to take a look at the RFC.
And ofcourse... take an FAT cup of COFFE.
It doesn't hurt with more solutions, so you who have something to say write it here imm!
Thanks to you all that helped!
;-)
Thats sound intressting, iam going to take a look at the RFC.
And ofcourse... take an FAT cup of COFFE.
It doesn't hurt with more solutions, so you who have something to say write it here imm!
Thanks to you all that helped!
;-)
I remember doing some socket progrraming for a server and telnet being client and it worked perfectly
Why is you code failing
Let us know more details
Amit