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From: dorl@vms.macc.wisc.edu (Michael (NMI) Dorl)
Newsgroups: comp.os.vms
Subject: code to set file protection
Message-ID: <1663@uwmacc.UUCP>
Date: Fri, 26-Jun-87 17:32:41 EDT
Article-I.D.: uwmacc.1663
Posted: Fri Jun 26 17:32:41 1987
Date-Received: Sat, 27-Jun-87 10:42:17 EDT
Sender: news@uwmacc.UUCP
Reply-To: dorl@vms.macc.wisc.edu (Michael (NMI) Dorl)
Organization: UW-Madison Academic Computer Center
Lines: 20

I am in need of some code to change a existing file's protection.
I've looked through the RMS manuals and found only the protection XAB.
The description of this XAB indicates that one can change a existing
files protection if you open it, write it (or otherwise update it),
and then close it with the XAB attached.  I can not make this work.
Even if I could, I might not want to modify the file.

The only other mechanism I can find for this purpose is the QIOW
IO$_Modify function.  This requires the whole directory and file
parsing route to get the file id.  I suppose one could use RMS for
this part of the task.  Is a FIB block and channel number hidden in
any of the RMS structures?

Am I missing something?  Seems there should be a better way to do
this.

Thanks,
Michael Dorl
dorl@vms.macc.wisc.edu
dorl@wiscmacc.bitnet