Very Computer

Hello,

I have a problem concerning the telnet client on Solaris 2.6. I
implemented a server which provides a character
oriented user interface via a special port. After accepting a connection
initiated by the telnet client the server force the
user to type in a password.
The telnet client works in line mode with local echo on, which is fine
except for the password entry.
I already tried to send (from the server to the telnet client) the
telnet command sequence

    IAC ECHO OFF (and after pwd input again ON)

but it seems that it gets ignored. I wonder because exactly this
implementation works when using
from WinNT via Hummingbird Exceed TELNET.

Has someone a solution?

TIA

Quote:>Hello,

>I have a problem concerning the telnet client on Solaris 2.6. I
>implemented a server which provides a character
>oriented user interface via a special port. After accepting a connection
>initiated by the telnet client the server force the
>user to type in a password.
>The telnet client works in line mode with local echo on, which is fine
>except for the password entry.
>I already tried to send (from the server to the telnet client) the
>telnet command sequence

>    IAC ECHO OFF (and after pwd input again ON)

There's no such sequence.

The server should send IAC WILL ECHO which is the server telling
the client that the server will do echoing so the client shouldn't
echo. The server continues not to echo, so no echoing happens.
You should get back from the client IAC DO ECHO. If you get back
IAC DONT ECHO, then the client is unable to turn off echoing.
(Although I've come across several clients which know they can't
turn off echoing, I've yet to find one that actually admits this
to the server, other than one I wrote.)

BTW, this won't work with Microsoft's telnet client, because it's
too non-conformant. I couldn't make it go no-echo at all in line
mode, although it tells the server it has.

--
Andrew Gabriel
Consultant Software Engineer

Dear Donato,
        You have set local echo on turn it off

Quote:> Hello,

> I have a problem concerning the telnet client on Solaris 2.6. I
> implemented a server which provides a character
> oriented user interface via a special port. After accepting a
connection
> initiated by the telnet client the server force the
> user to type in a password.
> The telnet client works in line mode with local echo on, which is fine
> except for the password entry.
> I already tried to send (from the server to the telnet client) the
> telnet command sequence

>     IAC ECHO OFF (and after pwd input again ON)

> but it seems that it gets ignored. I wonder because exactly this
> implementation works when using
> from WinNT via Hummingbird Exceed TELNET.

> Has someone a solution?

> TIA

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