I noticed that there is a libzz.a library in /usr/lpp/hzc/lib but the include directory is empty. IBM have implemented three extra functions. I'm guessing that the user is expected to roll their own function prototypes for those and use the existing zlib header files. Is my assumption correct?

On 9/06/2016 9:11 PM, Kirk Wolf wrote:
Marc is correct.

Also, if you have z/OS V2R2 OpenSSH and a zEDC card, you can do this:

cozsftp -C -ozEDCCompression=yes  user@host

(you would have to authorize the user to use zEDC using SAF/RACF)

Kirk Wolf
Dovetailed Technologies
http://dovetail.com

On Thu, Jun 9, 2016 at 6:41 AM, Marc Manuel <[email protected]> wrote:

Yes "-C" should work.

You can add "-vvv" to have sysout trace where you can find for example :


Co:Z SFTP version: 3.6.0 (6.4p1) 2015-12-08
Copyright (C) Dovetailed Technologies, LLC. 2008-2014. All rights reserved.
(.....)
debug1: compress outgoing: raw data 105008594, compressed 1430152, factor
0.01


debug1: compress incoming: raw data 123765, compressed 28604, factor 0.23

(....)


2016-06-08 13:40 GMT+02:00 Dazzo, Matt <
[email protected]>:

I have a request to see if we can turn on wire-compression for sftp. We
are using Cozbatch for SFTP (SSH), I have done some testing using the -C
parameter as shown below but I can't confirm if this is working? Would
this
be correct? If not, can anyone shed some light on this?

Thanks Matt

Co:Z SFTP version: 2.4.4 (5.0p1) 2014-03-18
Copyright (C) Dovetailed Technologies, LLC. 2008-2013. All rights
reserved.
$coz_bin/cozsftp $ssh_opts  -b-  -C  $remoteuser@$server <<EOB

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