"UNIX system services (possibly HFS) file 0000 0103 0000 7FF8" may not be everything you wanted, but it is certainly useful if you want to know whether it is a path.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Paul Gilmartin <0000000433f07816-dmarc-requ...@listserv.ua.edu> Sent: Tuesday, February 19, 2019 12:33 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Any easier way to determine if DD is dummy than GETDSAB? On Tue, 19 Feb 2019 11:50:51 -0500, Steve Smith wrote: >If the customer has to specify any JCL, then using a specified DDname is >the idiomatic way to go. > >DEVTYPE is dead simple for sniffing out DUMMY vs. spool vs. DASD vs. TAPE >vs. missing. I wouldn't use RDJFCB just for that. > But I had an SR rejected, WAD, because DEVTYPE (or was it DSORG) didn't return anything useful for a UNIX path. >On Tue, Feb 19, 2019 at 11:39 AM Charles Mills wrote: > >> Well, there is no EXEC anywhere in the question but yes, changing the >> specs to make the customer supply a DS name rather than a DD statement >> might be an approach. >> Are you trying to suss out the details of an allocation you didn't control? >> -----Original Message----- >> From: ITschak Mugzach >> Sent: Tuesday, February 19, 2019 8:06 AM >> >> Why don't youb simply get the dsname as parm to your exec and perform >> dynamic allocation if a dsname exist in the parm field? >> But did a different component perform the allocation? On Tue, 19 Feb 2019 10:37:36 -0600, John McKown wrote: > ... >Oh, I think you're right. From the IEFJFCBN macro in SYS1.MACLIB: > >* DCL JFCBPCON CHAR(21) CONSTANT('...PATH=.SPECIFIED...'); > I recall seeing that in HLASM summary; perhaps also in formated SYNADAF replies. HLASM got better; JFCB didn't. I don't understand why JFCB couldn't just be stuffed with part of the pathname. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
