Question : Telnet - Windows XP - redirecting input/output problems

Hi. I'm having difficulty redirecting telnet output in windows.

My goal is to write VB.NET code to look at telnet output, and provide input based upon certain outputs.

Thus far, I'm able to provide input only... I just can't seem to redirect the output whether through cmd.exe -> telnet   or directly to telnet.

Operating System: Windows XP

Anybody have any ideas?

Thanks!

Answer : Telnet - Windows XP - redirecting input/output problems

The set command should work for you :)

Welcome to Microsoft Telnet Client
Escape Character is 'CTRL+]'
Microsoft Telnet> ?

Commands may be abbreviated. Supported commands are:
c    - close                    close current connection
d    - display                  display operating parameters
o    - open hostname [port]     connect to hostname (default port 23).
q    - quit                     exit telnet
set  - set                      set options (type 'set ?' for a list)
sen  - send                     send strings to server
st   - status                   print status information
u    - unset                    unset options (type 'unset ?' for a list)
?/h  - help                     print help information

Microsoft Telnet> set ?

bsasdel         Backspace will be sent as delete
crlf            New line mode - Causes return key to send CR & LF
delasbs         Delete will be sent as backspace
escape x        x is an escape charater to enter telnet client prompt
localecho       Turn on localecho.
logfile x       x is current client log file           <---  Set logfile name
logging         Turn on logging                      <---  Set logging on
mode x          x is console or stream
ntlm            Turn on NTLM authentication.
term x          x is ansi, vt100, vt52, or vtnt
Microsoft Telnet>
http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/telnet_commands.mspx
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This may work for you.
Found a solution, ended up using pipes to redirect all streams.
Posted by infamous
Code:
char psBuffer[128];
       FILE *telnet;
      /* Run telnet so that it writes its output to a pipe. Open this
      * pipe with read text attribute so that we can read it
      * like a text file.
      */
       if( (telnet = _popen( "cdrecord --help", "rt" )) == NULL )
       exit( 1 );
       /* Read pipe until end of file. End of file indicates that
      * telnet closed its standard out (probably meaning it
      * terminated).
      */
       while( !feof( telnet ) )
       {
       if( fgets( psBuffer, 128, telnet ) != NULL )
       printf( psBuffer );
       }
       /* Close pipe and print return value of telnet */
       printf( "\nProcess returned %d\n", _pclose( telnet ) );

NOTE: I only used telnet for testing purposes, my real program created a blank file when I tried "cmd /c myProgram.exe > datafile.txt" with a system command or just "myProgram.exe > datafile.txt". The above was my solution.
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Fyi-note - you may find this of interest -- WMIC.
http://www.microsoft.com/technet/prodtechnol/windows2000serv/maintain/featusability/wmic.mspx