Hi All,
I have a MFC app which calls needs to connect to a server and then monitor its perf.the entire process of connecting to the server and sending commands to it and retreiving the response from the server is automated in the MFC app.For this the app uses a client console app called Plink. The app starts Plink process to initiate the process of connecting to the server.For starting Plink,the app uses CreateProcess with a commandline to be sent to the server so that the server prompts with the username with which to login.Once the server sends the username prompt,the application has to write the username string to the console tht opens whn we call Plink.

Now the prob is whn I write the username string to the console output screen followed by a carriage return and a line feed,it doesnt prompt me for the password as the case shd be. I am using WriteConsole API to write to the Plink console window and use pass the standard console output handle to write.

Am I going wrong somewhere?
Should I write to the console input or the console output handle?

Any kind of help is welcome.
Please help.

Thanks in advance,
Jyoti

After your above mentioned steps, What is the output shown?

If some output is shown, then password is accepted with WriteConsole in the first instance itself.

In the console window I donot see any output except that the cursor moves to the leftmost position in the next line.
So I assume that carriage return is working but locally in the console window but the username string and the carriage return is not being sent to the server by Plink.

Thanks,
Jyoti Sarkar

Hi, Sorry for the delay
Try sending user name and CRLF as two separate functions.
Even then the command is not accepted by Plink indicates that Plink is not part of the app you are writing.

__________________
Logic is Inevitable.

I tried sending the username and the CRLF seperately in two consecutive calls to WriteConsole passing the handle of the standard console output but to no success.
I am using the executable of Plink and not any source code. It is a third party tool which is freely available. It is a commandline tool which needs to be started from the console. For this my app uses standard console input and standard console output handles. To retrieve the handles the app uses GetStdHandle API. My app is also an executable which creates Plink as a seperate process with a commandline "plink -<telnet/rlogin/ssh> <server IP>". This starts Plink in a console window and I am prompted for the username. I can see the login: prompt in the console window. When I write the username to the output handle of the console,it writes the username along with the CR and LF.The username string is printed on the console output and the cursor moves to the left most position in the next line.But I donot get the password prompt which in ideal condition the server should have sent once it received the username string. Server is running because I have checked it using Plink manually.
I have tried the following without any positive results:
WriteConsole with output handle
WriteConsole with input handle
WriteConsoleOutput with output handle
WriteConsoleOutput with input handle

I have no clue where I am going wrong.

Please do help.

Thank you so much for looking into the matter and replying.

Jyoti Sarkar