By "crippled", it could be during early IPL or late shutdown.
Tony Thigpen
John McKown wrote on 6/4/19 8:20 AM:
On Mon, Jun 3, 2019 at 5:23 PM Tony Thigpen <t...@vse2pdf.com> wrote:
I would not convert it to LE.
I have strong feelings that any system tool like this must be able to
run in a crippled system with as little support from the OS as possible.
Hum. I hadn't thought of running this in a "crippled" environment. I would
have imagined that I would be logged into the z/VM "console" for the z/OS
guest to interactively issue CP commands, rather than via TSO or batch.
As an opinion, I think that simple programs like this should not be
converted to base-less programming either. One, there is no need and
second, I believe that abend fixing is easier with a base address.
KISS rules. :-)
True. I think that baseless programming is actually simpler. But in a very
short routine like this one, it doesn't really make much of a difference.
Almost all of the "application" code that I write now is baseless, with R&I
instructions as well as LE enabled. Why LE? Because I can then use a lot of
LE routines as well a C language subroutines, such as "snprintf" (which is
wonderful to make nicely formatted messages). There are some nice ones. I
know that many still hate LE, but I have learned to love the pain.
I have no real opinion about making a unix command as I don't really use
unix that much, but personally I would prefer that a unix user not have
access to VM commands.
I do a _LOT_ of z/OS UNIX shell scripting. I can do a UNIX shell script and
get an answer faster than writing a TSO REXX program. Why should a TSO user
have access, but not a UNIX user? I, personally, don't see any difference.
I like what I read from Mr. Elliot about using RACF to restrict access to
this program. Of course, this can be done implicitly done by putting the
code in a place where unauthorized user cannot access it. I.e. no access to
the STEPLIB or UNIX directory which contains the program.
Of course, for me, all of this is theoretical because I don't have access
to a z/VM system.
Tony Thigpen
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