In a recent note, Tim Hare said:
> Date: Wed, 3 May 2006 11:22:34 -0400
>
> Well, since the one reason I can think of to download a mainframe load
> module is to upload it to a different mainframe, two accounts will be
> needed no matter what, so I think your first point is moot.
>
Think anonymous FTP.
And the user might have an account, but no be RACF-enabled for
TSO.
Or, the user might want to upload a load module to testcase.boulder.ibm.com
for problem verification. Last time I looked, testcase was not
a z/OS system, so some sort of store-and-forward is required.
Yah, I know, there's TRSMAIN. But why burden the user with another
step which could be incorporated (most of the work has already been
done) in the FTP server and/or client.
> I believe, but haven't tried it, that z/OS FTP allows you to specify that
> one FTP server transfer files to a different FTP server, which might help
> in the above scenario.
>
Understood. I haven't tried it either. And it doesn't address the
"testcase" situation where "a different FTP server" is so different
as not to be running z/OS.
> Your point about TRANSMIT, is still valid; although isn't this the case
> for anything requiring pre-processing before FTP (Zipping files,
> encrypting, etc.)?
>
Not necessarily. Long ago, I was familiar with the WUSTL FTP server,
which embedded such pre-processing, much as TSO TRANSMIT embeds
IEBCOPY. If I knew of a directory-path and said
GET directory-path.tar.Z
... it would dynamically archive and compress the directory for
transmission. This allowed serving multiple formats (e.g. .tar,
.tar.Z, .tar.gz, .zip) while storing only a single copy of the
data. (I don't know what it might do if a mischievous, greedy,
or ignorant user did GET filesystem-root.tar.Z.)
-- gil
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