Gerhard, I don't disagree. This type of ddname list override was also new. I found out with the help of the kind IBMer. I then experimented on a test system to confirm it worked , and of course it did.
Scott ford www.identityforge.com Tell me and I'll forget; show me and I may remember; involve me and I'll understand. - Chinese Proverb On Feb 9, 2013, at 2:41 PM, Gerhard Postpischil <[email protected]> wrote: > On 2/9/2013 12:46 PM, Joel C. Ewing wrote: >> If you are saying you expect alternate DDNAME parameters to work with >> other utility programs or some previously written program for which this >> feature is not documented because it works with IDCAMS, that is >> unreasonable. Standard MVS calling linkage conventions only define how >> to pass parameters. The meaning attached to those parameters is totally >> up to the called program and undocumented behavior should not be >> expected. In the standard MVS program environment, unlike UNIX >> environments, there is no concept of a STDIN/STDOUT/STDERR that is >> always available to a program and always externally changeable. > > I suspect you misread the "rant". It had nothing to do with linkage > conventions, and you have failed to specify why you consider it unreasonable. > The OP asked for an ATTACH parameter; my take on this is that all system > services that work with a DD name would check the current TCB for an override > list, and apply the alternate name, if any. To be generalized, it would need > an "old" DD name paired with the replacement, either a name or hex zeroes. > > I have several programs where such a facility would be useful, so I can > sympathize with the request. > > Gerhard Postpischil > Bradford, Vermont > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
