Telnet Program

[paul.zorn at gmail.com]

On Jan 29, 12:27 pm, Rob Wolfe <r... at smsnet.pl> wrote:
> "paul.z... at gmail.com" <paul.z... at gmail.com> writes:
> > I am having some issues writing a telnet program, using telnetlib. I
> > am not sure if it is the telnet on the connections end or it is my
> > program.
>
> > A little background, when I log in straight from the Linux Command
> > prompt. The only thing I get is a blinking cursor. Then I type in my
> > command 'FOO' enter then screen on the very next line returns 'OK',
> > Then automatically puts the blinking cursor on the next line. Then
> > when I want to quit the telnet session I hit CTRL+Z that takes me to
> > telnet> then i type quit.
>
> > My Program currently looks like it connects. Because the last string
> > that I get back that is not blank says: "Logged in successfully".
>
> > So my problem is that when I issue the command through tn.write("FOO
> > \n"). Then do a tn.read_until('OK\n', 10). It gets returned nothing. I
> > have also added tn.read_until('OK\n', 10).splitlines(). That is also
> > returned blank.
>
> > I have tried various different newlines \n \r \r\n. All the
> > documentation for telnet program that I am logging into says, use
> > Carriage Return after each command. Nothing seems to get back the
> > data. I am not sure if the Python telnet is looking for more of true
> > command line like telnet>.
>
> Have you tried: tn.set_debuglevel(1) ?
>
> HTH,
> Rob

Thank You for the response. I did set the debugging level. I get back
this.

Telnet(192.168.2.75,5000): recv 'Password: '
Telnet(192.168.2.75,5000): send '*****\n'
Telnet(192.168.2.75,5000): recv '\r\x00\r\nlogged in successfully\r\n'
Telnet(192.168.2.75,5000): send '\n\n'
Telnet(192.168.2.75,5000): Sending AT
Telnet(192.168.2.75,5000): send 'AT\r\n'
Telnet(192.168.2.75,5000): recv '\r\x00'

So I on this command I should be getting back a 'OK' or 'ERROR'. But I
am not seeing it. I feel like I am missing something. Not sure what
would be the or is it the telnet application itself.

Thanks,
Paul