Re: Clients using a GUI to access FTP

In article <44DBF84F.7845A124@xxxxxxxxxxxx>, JF Mezei <jfmezei.spamnot@xxxxxxxxxxxx> writes:
"Steven M. Schweda" wrote:
Why? We were discussing a VMS FTP server. Why should a VMS FTP
server try to overcome any ODS2 file system limitations (other than the
conversion of all-upper-case to all-lower-case)?

While you may be discussing of the output of the LIST or NLIST command,
the above statetement is strictly not true.

When receiving a file, any FTP server must be able to make that file
compatible with its own file system.

So, if on my mac, I want to send "recipe.chocolate.cake" to my VMS
system, I want the VMS FTP server to be able to take that MAC filename
and convert it into a valid VMS file name.

While I understand that ODS5 has many fewer limitations, it still has
some.

(And the mac file system has limitations too, and so does UNIX (can't
have a slash in filename).


(But all this is beyond the current problem of Microsoft asking for a
human readable list of files when it really wants a machine readable list).

These types of mappings between filenames on different OSs have to take place
anyway in any FTP implementation. That has nothing to do with providing an
option for the system administrator on the VMS system to get the VMS FTP server
to provide the listing in a ls style - Take a look at the public domain HGFTP
to see how it can be done.

As to ODS-5 having fewer limitations - in theory this should be true.
In practise with many windows FTP clients it becomes almost unusable.
For instance with HummingBird Exceed's FTP client when it puts a file
containing non ODS-2 compatible characters onto a VMS system using DEC TCPIP
service's FTP and ODS-5 it sometimes ends up putting a file with a name which
includes the directory spec of the file in the directory (with the
directory-spec encoded as part of the filename) eg

Directory USER14:[XXXXX.PUBLIC_HTML]

ethiopan.DIR;1

USER14_^[XXXXX^.PUBLIC_HTML^.ethiopan^.image^]st^.gabriel^_festival^_al^_kullubi
^,^_hararge.jpg;4


Hummingbird then cannot delete such files.



David Webb
Security team leader
CCSS
Middlesex University

.

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