Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!ucsd!sdd.hp.com!zaphod.mps.ohio-state.edu!wuarchive!cs.utexas.edu!bcm!rice!rice!sun-spots-request
From: jstewart@ccs.carleton.ca (John Stewart)
Newsgroups: comp.sys.sun
Subject: /bin/mail lock protocol
Keywords: Miscellaneous
Message-ID: <1990Aug15.235357.7099@rice.edu>
Date: 14 Aug 90 21:56:11 GMT
Sender: sun-spots-request@rice.edu
Organization: Sun-Spots
Lines: 8
Approved: Sun-Spots@rice.edu
Originator: spots@titan.rice.edu
X-Sun-Spots-Digest: Volume 9, Issue 304, message 13

Does anyone know what style of locks /bin/mail uses when delivering mail
to a mail folder in /var/spool/mail?  Since the SunOS System and Network
Administration manual specifically talks about exporting /var/spool/mail
to client machines, I would expect that /bin/mail uses lockf style locks.

What puzzles me is that the Elm mailer seems to work ok on our server (the
machine on which /var/spool/mail actually resides) even though it uses
flock style locking.