-----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Binyamin Dissen Sent: Wednesday, September 23, 2009 10:36 AM To: [email protected] Subject: Re: Long parms ... again (was: Reading DD card information)
On Wed, 23 Sep 2009 11:28:05 -0400 "Thompson, Steve" <[email protected]> wrote: :>-----Original Message----- :>From: IBM Mainframe Discussion List [mailto:[email protected]] On :>Behalf Of Binyamin Dissen :>Sent: Wednesday, September 23, 2009 10:07 AM :>To: [email protected] :>Subject: Re: Long parms ... again (was: Reading DD card information) :>You are missing the point. :>The APF program was written to the spec that the parameter will never be :>more :>than 100 characters, and it was enforced by JCL. :><SNIP> :>What about the principle that you do not use KEY0 or SUPSTATE when it is :>not needed? :>The PARM info that is passed is not in FETCH protected storage. :>Therefore, you should not have to be in KEY0 to use that storage. Irrelevant. :>Granted, if you have set things via the PPT, you probably set up this :>particular APF program wrong all the way around. So is the program :>written incorrectly -- should it start out in KEYUSER (8) and then as :>needed switch to KEY0? Ditto. :>Should it start in SUPSTATE and do SPKA to KEY0 when needed, otherwise :>be in some other key? Ditto. :>So, when doing a storage move, it is upon the program to ensure that it :>does not overflow the receiving area (especially true for APF programs). All this is irrelevant, as the program was written according to documented API. You want to change the API without ensuring that the program will be changed to support the new API. <SNIP> Binyamin: Might I suggest that you are being a bit myopic? Or perhaps suffering from tunnel vision? APF programs are to be written to a higher standard. >From what you have written, you believe that if someone passes an APF program you have written, an invalid parm, that program should accept that as gospel and go clobber some part of the address space (say the JSCB, or change the ASCBSENV, etc.) and give the caller authorities they should not have, right? Regards, Steve Thompson -- Opinions expressed by this poster do not necessarily reflect those of poster's employer -- ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
