Can someone do me this?

I tried for several days, i simply cant do it... :( I cant learn it by myself.

I'm trying to make a simple program in C++ to compile into a .EXE using DEV-C++

The program will do this:

-Connect through telnet to 127.0.0.1 at the port 8674, you can use port 23,24,25, and so on to connect.

-Send the Authentication message "AUTH 1287".

-Wait for the sentence "Correct! 250" that the server sends

-Now send in each minute the next message "Show stats"
for each (minute) send "Show stats"...


Its a program that I have to show remote stats from other computers i have, but i need to keep it updated this way.
I know there are better options to do what i'm doing but i would like to try this way.

Can someone develope me a script that does that?
Thanks!

>> Can someone develope me a script that does that?

you poor thing. would you like fries with that?

Please, I know you can do that in 5 minutes, i would take 5 years :cry:

What have you tried?

winsock libraries, just cant get it...

The answer is no. We don't give out full programs. We do help you with your own program. But in this case, the networking forum is more appropriate.

Its only a tiny simple script..... oh my god... :(

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I know there are better options to do what i'm doing but i would like to try this way.

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As it probably could be done in 10 lines with any higher level script language, I guess your interest here is to *learn* how to do it in C?

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I cant learn it by myself. [...]Can someone develope me a script that does that?

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So actually you don't care about learning.

Could you rephrase your problem with consistent contraints? why do it in C?

Just post the code if you have any.
Some will be happy to dig into it and feed you with suggestions as to why it isn't working or how it should be.

> "you can use port 23,24,25, and so on to connect."

Yer, that's not homework. You *should* be able to do it in batch.

I wanna use C/C++ because i made this tiny prog in visual basic and it needs the Winsock.ocx file.
In C no ocx files needed, and i only have to put the winsock.dll in the same folder as the program, no need to register it.

i dont want to learn it, at least right now, because college takes me all the free time i had not much time ago...

and no, this isnt any school homework or something.

Unfortunately, as you should know, just trying to do something in a language without experience isn't going to work.
There's nothing wrong in having the winsock.ocx file on the target computer. Just make sure they install the VB runtime, and they'll have the winsock file.
Btw, C/C++ also requires runtime - especially newer versions, so don't do it just because you don't want to install winsock.ocx.

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Originally Posted by Elysia

Unfortunately, as you should know, just trying to do something in a language without experience isn't going to work.
There's nothing wrong in having the winsock.ocx file on the target computer. Just make sure they install the VB runtime, and they'll have the winsock file.
Btw, C/C++ also requires runtime - especially newer versions, so don't do it just because you don't want to install winsock.ocx.

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so what should i do?

Why not stick to VB?

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Originally Posted by Elysia

Why not stick to VB?

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Can you help me or not? Is this something against VB or something... is this some kind of religion? ....... -_-

No, I can't help because I don't know network programming.
And I was asking because you seem intent on doing it in C/C++ just because you don't want to ship winsock.ocx.
But I'm telling you that even if you do C/C++, you'll still have to redistribute dlls, possibly even install depending on what compiler.

Does every DLL need to be installed? His presence in the same folder as the .EXE is not enough?

Runtime can be a complex thing. VB has its own runtime and so does C/C++.
They need to exist on the target computer.
Some runtimes can be placed in the app directory, some cannot. It depends on the compiler.

I'm sure if you goto www.rentacoder.com, you'll find someone to do it at a price you're willing to pay.

I'll ask some friend of myne to do it then....

I don't know whether to laugh or cry, so I did a little of both...

double digits shouldnt be allowed near computers, drooling on the keyboard could cause electrocution among other annoying results, like posting.

What do you mean the program will connect through telnet? Is there a telnet server or is the actual program you want written the server, and YOU connect to it through telnet?

EDIT: Heres some code i've written for you. I have not tested it (you havnt provided the server program for me to test it with) but it compiles without any warnings/errors. You need to link the wsock32 lib

Code:

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#include <stdio.h>
#include <string.h>
#include <winsock2.h>
#include <windows.h>


const char SERVER_IP[] = "127.0.0.1";
const unsigned short SERVER_PORT = 8674;

size_t RecvLine(unsigned int socketId, char* out, size_t outSize);

int main (int argc, char *argv[])
{
    char msgBuffer[0xFFFF];

    //Initialize Winsock (version 2.2)
    WSADATA wsaData;
    WSAStartup(MAKEWORD(2, 2),&wsaData);


    //Create a TCP socket
    unsigned int socketId = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    if(socketId)
    {
        //Fill in server IP and PORT into address header
        SOCKADDR_IN addr;
        addr.sin_family = AF_INET;
        addr.sin_addr.s_addr = inet_addr(SERVER_IP);
        addr.sin_port = htons(SERVER_PORT);

        //Try and connect to the server
        if(connect(socketId, (SOCKADDR*)&addr, sizeof(addr)) != -1)
        {
            //If we succesfully connected, than send the "AUTH 1287" message
            strncpy(msgBuffer, "AUTH 1287\n", sizeof(msgBuffer));
            send(socketId, msgBuffer, strlen(msgBuffer), 0);

            //Receive the next line
            if(RecvLine(socketId, msgBuffer, sizeof(msgBuffer)))
            {
                //Check if the line we received is "Correct! 250"
                if(strcmp(msgBuffer, "Correct! 250") == 0)
                {
                    while(1)
                    {
                        //Send the "Show stats" line
                        strncpy(msgBuffer, "Show stats\n", sizeof(msgBuffer));
                        send(socketId, msgBuffer, strlen(msgBuffer), 0);
                        Sleep(60000); //Wait 60 secs
                    }

                } else printf("Error. Incorrect response from server\n");
            }


        }

    }
   
    //Free winsock
    WSACleanup();
    return 1;
}

//Receives a line from a socket
size_t RecvLine(unsigned int socketId, char* out, size_t outSize)
{
    char byte;
    size_t recvCount = 0;

    //Clear the out buffer
    memset(out, 0, outSize);

    for(; recvCount < outSize - 1; ++recvCount)
    {
        if(recv(socketId, &byte, 1, 0) > 0)
        {
            if(byte != '\n')
                out[recvCount] = byte;
            else break;
        } else break;
    }

    //Trim the line (any \r, \n,etc)
    while(recvCount)
    {
        if(out[recvCount-1] < ' ')
            out[--recvCount] = 0;
        else break;
    }

    return recvCount;
}

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As you can see it's alot more complex than what you would do in VB and you should have a decent amount of c/c++ knowledge before you go into sockets.

Thank you very much 39ster!! It works very well! Thank you! ;)

Well done, 39ster. You've just rewarded NeMewSys's laziness.

It's a shame it came to that - nagging rewarded with spoon-feeding.

At least the code is riddled with lots of subtle bugs, that's my only consolation.

uhhg... you have got to be kidding.

Probably best to close this thread before it opens up into a war :)

Or they could of closed it before if they didnt want anyone to help him.

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Originally Posted by 39ster

Or they could of closed it before if they didnt want anyone to help him.

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You dont help a wino by giving them money for booze. All you did was reinforce his behavior. Instead of learning to program, he learned that nagging will get him what he wants.

Quote:

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Originally Posted by abachler

You dont help a wino by giving them money for booze. All you did was reinforce his behavior. Instead of learning to program, he learned that nagging will get him what he wants.

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The guy's already said he's tried for days and couldnt figure it out. All my knowledge of C comes from reading peoples source code and reading tutorials and when i was in his position, frustrated because i just cant figure it out, it would of been great for someone to write it out for me so i could learn from their code.
I was also very bored at the time and wanted something to do.

We were tryign to hel;p him but he woudlnt provide any information on what he had already tried so we coudl show him where he went wrong. Sometimes fixig the problem means fixing why there is a problem as well. Don't just fix the broken part; fix what broke the part in the first place.

Maybe thats why i hated factory maintenance.

Yay spoon feeding! I'm next! I got my bib on so I wont make a mess.

Seriously tho, I dont see what the problem is. Examples are good to work from when you havent got a clue about what you are doing.

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Originally Posted by 39ster

The guy's already said he's tried for days and couldnt figure it out. All my knowledge of C comes from reading peoples source code and reading tutorials and when i was in his position, frustrated because i just cant figure it out, it would of been great for someone to write it out for me so i could learn from their code.
I was also very bored at the time and wanted something to do.

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As for that, i didnt mention before but i printed your code to have a closer look when i tested it ;)

Thanks again!

Sweet 39ster,
I will have you do my work from now on.

My life just got way easier!!!

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Originally Posted by prog-bman

Sweet 39ster,
I will have you do my work from now on.

My life just got way easier!!!

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I actually wouldnt mind doing it if it's something that im capable of.