Re: Serial port redirection

Corey Minyard
2003-12-03T13:23:04Z

Ah, I missed that. Ideally, something (i would think kermit) should sit
between the program and the socket to make it transparent. But yes, I
see what you are saying.

Thanks,

-Corey

Jeffrey Altman wrote:

> Corey Minyard wrote:
>
>> Jeffrey Altman wrote:
>>
>>> Its not a Kermit bug; If you pass the socket file descriptor to an
>>> external program
>>> the external program must understand telnet protocol. Otherwise, it
>>> can't send the
>>> correct data format.
>>
>>
>>
>> No, it *is* a kermit bug. When kermit sends an 0xff character, it
>> needs to escape it per the standard telnet protocol. It's obviously
>> not doing this.
>>
>> -Corey
>
>
>
> I agree, the IAC must be quoted. The problem is that when an external
> protocol handler is
> executed as a child process, Kermit is suspended and the child process
> has complete control
> over the socket file descriptor.
> Kermit is not sitting between the external protocol and the host.
> Some versions of sz have a command line flag to handle this situation
> such that IAC (0xff) are
> not sent but are instead escaped within the zmodem protocol.
>
> Jeffrey Altman
>
>

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