[Info-vax] yet another sys$qiow question

[Jan-Erik Soderholm]

Den 2015-08-12 kl. 21:23, skrev Johnny Billquist:
> On 2015-08-12 10:12, Jan-Erik Soderholm wrote:
>> Den 2015-08-12 kl. 01:53, skrev Johnny Billquist:
>>> On 2015-08-12 00:38, kc at kayceesoftware.com wrote:
>>>> this is slightly related issue only as it pertains to the same serial
>>>> comm to a card reader.
>>>> to refresh: vms 8.4 IA64, tcpip 5.7 ECO 5, C 7.3-018
>>>> sys$qiow working fine now and seems very stable, my problem was getting
>>>> the terminator mask correct.
>>>>
>>>> I've been reading on sockets and will be converting to that mode soon
>>>> for
>>>> another project and probably change this serial code at that point.
>>>>
>>>> BUT, in researching a very random NAK of my comm, i've found that the
>>>> CRC
>>>> sometimes calcs a line feed (LF, ox0a), and the stored string shows ONLY
>>>> the LF i put in it....but the message that ends up at the card reader
>>>> has
>>>> CRLF, which is then rejected as invalid.
>>>>
>>>> The terminal port (TNA1) is set pasthru, the VMS IO Ref Manual says
>>>> IO$M_NOFORMAT and TT2$M_PASTHRU are basically the same.
>>>>
>>>> So, is it the TT driver, or tcp, or something else converting the LF to
>>>> CRLF?
>>>
>>> While I cannot answer, I should repeat what I pointed out before. The
>>> "telnet" protocol is really just a TCP stream, with a couple of things
>>> thrown in.
>>
>> You can use TNA ports/devices without using the telnet protocol.
>> Just use /prot=none.
>
> Do you have any specific information what that implies?

I do not have anything more then online HELP and the TCPIP
user manual (same text at both sources) :

TELNET> help create /protocol

CREATE_SESSION

   /PROTOCOL

         /PROTOCOL=options

      Optional. Default: NONE. Options include:

      o  NONE

         Data is sent with no interpretation (raw).

      o  NVT

         Network Virtual Terminal (NVT), TELNET's internal
         representation of a standard network terminal. NVT format
         is standard 7-bit ASCII code transmitted in 8-bit octets, the
         canonical form of data representation used by both the client
         and server.

      o  TELNET

         Standard TELNET protocol.

      o  RLOGIN

         Standard RLOGIN protocol.



Topic?


And I also know from 15 years of setting this up for equipment,
that *nothing* apart from what we write to the TNAxxx devices
in the QIO(W) is actualy sent on the line.

Jan-Erik.