Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site ucbvax.ARPA
Path: utzoo!watmath!clyde!burl!ulysses!ucbvax!info-vax
From: info-vax@ucbvax.ARPA
Newsgroups: fa.info-vax
Subject: VMS V4.0 gotcha
Message-ID: <5386@ucbvax.ARPA>
Date: Sat, 9-Mar-85 10:07:12 EST
Article-I.D.: ucbvax.5386
Posted: Sat Mar  9 10:07:12 1985
Date-Received: Sun, 10-Mar-85 06:32:38 EST
Sender: daemon@ucbvax.ARPA
Organization: University of California at Berkeley
Lines: 50

From: Richard Garland 

'nother gotcha:

	Changing UIC via the command "SET UIC [m,n]" no longer provides
access to the group logical names of group n.

	Example: In our SYSTARTUP file, in V3.x we use to set up a bunch of 
group logical names for several groups with code like the following:

		.
		.
	$ SET UIC [100,0]
	$ DEFINE/GROUP FOO BAR
	$ DEFINE/GROUP ASH CAN
	$ SET UIC [170,0]
	$ DEFINE/GROUP TWEEDLE DEE
	$ DEFINE/GROUP DUMDEE DUMDUM
		.
		.
	$ SET UIC [1,4]
		.
	(rest of SYSTARTUP.COM)

Then these various logical names would be available to members of these
groups.  Under VMS V4.0, these logical names are all put into the group
logical name table for [1,4] - i.e. the "SET UIC" command no longer switches
group logical name tables.  This apparently has to do with the new complicated
logical name structure and I don't know whether to call this a feature or
a bug.

Workaround:  Another V4.0 feature provides a workaround - the SUBMIT command
has a "/USERNAME" qualifier allowing a privileged user to submit a batch job
on behalf of another user.  So to set up the group names desired you must:
	1) have a user in the appropriate group with GRPNAM privilege (say
	   a user called GROUPGURU).
	2) create a command file with the various /GROUP assignments for
	   that group (say GROUPNAMES.COM).
	3) Submit the file as a batch job on behalf of the user:

		$ SUBMIT/USERNAME=GROUPGURU GROUPNAMES

This submit command replaces the other lines in SYSTARTUP.COM (don't forget
to start the batch queues first).  It works.

The diagnosis and workaround were provided by Carl Friedberg (Seaport Systems)
who recalls picking it up in a VMS V4.0 seminar sometime ago.

					Rg
-------