I suspect that you are correct that the I/O macro's have some sort of DCB support built in rather than changing IEBGENER. IBM specifically states that UNIX files are supported in some way in BSAM, QSAM, BPAM, and VSAM. It also says that certain macro's have restrictions and incompatibilities but only lists a couple examples. UNIX support in these macro's has never been a priority for me.
Jon Perryman. >________________________________ > From: Paul Gilmartin <paulgboul...@aim.com> > >On Fri, 8 Nov 2013 10:49:15 -0800, Jon Perryman wrote: > >>... IBM modified IEBGENER (and other utilities) to support DCB for UNIX files >>so yes they do work. >> >I strongly doubt that although I haven't access to the source code to verify >it. >Rather, I understand that the support was entirely in the access method so >that legacy applications using OPEN, GET, PUT, READ, WRITE, and CLOSE >continue to work unmodified. Perhaps one of the assembler experts such >as Ed or Mark might supply a concurring or dissenting opinion. > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
