On Tue, 25 Nov 2025 16:25:03 -0600, Paul Edwards wrote: >IBM's ftp has a "locsite rdw" which adds an RDW (record descriptor word) >to each record in a RECFM=V file. You can see an example here: > >https://sourceforge.net/p/pdos/gitcode/ci/master/tree/pdpclib/folks.c > >Apparently VM supports that (in ftp) too. > >I recently found out that IBM basically has another "standard" form >for length indicators, which is a 2-byte form. So while a record length >of 80 bytes of data is represented by 4 bytes in an RDW, plus it >includes the length of the RDW itself, so you would get x'0054 0000' >for that RDW, the 2-byte form is x'0050'. > >You can see that here: > >https://www.vm.ibm.com/download/vmarc.html > How does it deal spanned records, RECFM=VBS,LRECL=X?
<https://www.explainxkcd.com/wiki/index.php/927:_Standards> -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
