Hi Jim,
Why is "STEPLIB" dangerous?
Please explain in detail.
Thanks and regards,
David
On 2023-07-19 13:49, Jim Mulder wrote:
Yes, TSOLIB is part of TSO/E and is correctly implemented by ATTACHing
subsequent commands with a TASKLIB. The TSO/E developer who
was designing TSOLIB wanted to do an incorrect, dangerous thing like STEPLIB
did, so that he could provide equivalent function to STEPLIB.
Peter Relson, Karl Schmitz, and I did not allow him to do that.
STEPLIB was created by Art Breslau, who worked for IBM, but not in the MVS or
TSO development organization. STEPLIB may have been
an FDP (Field Developed Program). Mr. Breslau had a bit of a bad reputation
with our development organization because of the
unsupported and dangerous things that he did in his "products".
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp. Poughkeepsie NY
-----Original Message-----
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Tom
Marchant
Sent: Wednesday, July 19, 2023 10:33 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Equivalent of TSOLIB for batch
Peter,
I'm a little over my head on this, but isn't TSOLIB in TSO implemented with
TASKLIB on ATTACH?
--
Tom Marchant
On Wed, 19 Jul 2023 12:04:12 +0000, Peter Relson <rel...@us.ibm.com> wrote:
Scary stuff being asked about. Certainly there is nothing that is supported
(and that likely includes whatever TSOLIB does and whatever is on the CBT
tape), and nothing that won't put your customer at risk (including possibly
introducing system integrity problems).
TASKLIB on ATTACH is the only supported way to influence the search order for
the system module fetch interfaces such as LINK, LOAD, ATTACH, and XCTL, aside
from providing a DCB on those interfaces.
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