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Date: Wed, 9 Jul 1997 17:44:04 -0500
From: Tim Tsai <tim@futuresouth.com>
To: freebsd-questions@freebsd.org
Subject: pwd utilties locking issues
References: <Pine.NXT.3.95q.970709143528.16133B-100000@ds9>
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Does adduser, rpc.yppasswd, pw, vipw, and passwd synchronize with each
other correctly?

Is it safe to use any or all 4 of the above mentioned programs
simultaneously?

I know you can not run more than one copy of adduser at once but that's
easily fixed by putting a lockf wrapper around it.  What about the
others?

Thanks,

Tim