From:	MERC::"uunet!CRVAX.SRI.COM!RELAY-INFO-VAX" 23-FEB-1993 18:47 23-FEB-1993 18:47:00.00
To:	Info-VAX@KL.SRI.COM
CC:	
Subj:	Re: Is there a way to clear the password history ?

In article <1993Feb23.143928.5511@tc.cornell.edu>, william@fractl.tn.cornell.edu writes:
> 
> I there a way to clear the password history using sys$setuai ? I know
> I can set the login flag dispwdhis but this does not acomplish my intent.
> We have student accounts that are used over and over again by different 
> classes from year to year and I would like to be able to clear the password
> histories at the end of each year. Any ideas ?

Since the VMS password history file is simply an indexed file with key 0 equal
to the username, it should be trivial to write a Fortran program to delete the
record.  The records map is as follows:
	STRUCTURE /PWDHIS/
	UNION
	    MAP
		CHARACTER * 32	username
 
		STRUCTURE pwdent (100)
			INTEGER * 4	entry (2)
			INTEGER * 4	change (2)
		END STRUCTURE
	    END MAP
	    MAP
	    	CHARACTER * 1632	str
	    END MAP
	END UNION
	END STRUCTURE

Thanks for this code fragment go to whoever sent it to me a while ago when I
wanted to display the password history records for a given user. 
Unfortunately, I forget who it was that sent it so I can't give the credit
where it's due.

-- 
Ed Wilts, BC Systems, 4000 Seymour Place, Victoria, B.C., Canada, V8X 4S8
EWilts@Galaxy.Gov.BC.CA     Office:  (604) 389-3430   Fax: (604) 389-3412