Re: XMODEM for VMS

On Jul 6, 3:39 am, JF Mezei <jfmezei.spam...@xxxxxxxxxxxxx> wrote:
johnhreinha...@xxxxxxxxx wrote:
You might look into the old standby KERMIT. A quick scan of the
documentation leads me to think it does XMODEM file transfers.

I got caught by the same thing. The references to XMODEM are how to
download the kermit executable onto your VMS machine to get started. And
I think that XMODEM may be supported on the windows version. But it
didn't appear to be on VMS.

I found some "VMODEM" software which required some editing and function
prototype declaration to compile (as well as checking of a 3 character
array being used as integer for terminal characteristics) and it SEEMED
to work. Spend 45 minutes downloading the image file for the switch only
to find the file to be corrupt. (a number of kilobytes bigger). I then
changed the "open" statement to add ctx=bin ctx=stm and got the transfer
going and this time, the file difference was < 512 bytes and the switch
was able to reboot.

I think VMS engineers should have really set a very strong strandard for
"binary" files on VMS from day 1 so that all apps that deal with file
transfer of binary files would have used that. When you have a file of
1473 bytes, you should be reading only 1473 bytes.

JF,

There is and always were embracive standards for binary files, dating
back to the days of the RSX-11 family. The problem is that many
outside systems (e.g., those that are not VMS or RSX-11 family) have
very loose definitions.

When transferring files using programs designed for other platforms,
the lack of standardization in the outside world is what you are
seeing.

Please note that C-Kermit (in LABELED file mode), the VMS enhanced
FTPs, and last but not least DECnet, have absolutely no problems
transferring binary files with full fidelity.

- Bob Gezelter, http://www.rlgsc.com

.

Relevant Pages

  • Re: XMODEM for VMS
    ... documentation leads me to think it does XMODEM file transfers. ... The references to XMODEM are how to download the kermit executable onto your VMS machine to get started. ... I think VMS engineers should have really set a very strong strandard for "binary" files on VMS from day 1 so that all apps that deal with file transfer of binary files would have used that. ...
    (comp.os.vms)
  • Re: XMODEM for VMS
    ... documentation leads me to think it does XMODEM file transfers. ... download the kermit executable onto your VMS machine to get started. ... The usual convention for binary files on VMS (used by various file transfer ... binary file transfer programs that use the fixed length ...
    (comp.os.vms)
  • Re: XMODEM for VMS
    ... documentation leads me to think it does XMODEM file transfers. ... download the kermit executable onto your VMS machine to get started. ...
    (comp.os.vms)
  • Re: XMODEM for VMS
    ... me to edit the config.text on VMS but safely send it back to the switch! ... done a better job than Multinet at transferring pure binary. ... Multinet had its own method of transferring the VMS attribute ... Unofficial OpenVMS Hobbyist Support Page: ...
    (comp.os.vms)
  • Re: XMODEM for VMS
    ... documentation leads me to think it does XMODEM file transfers. ... The references to XMODEM are how to download the kermit executable onto your VMS machine to get started. ...
    (comp.os.vms)