From owner-freebsd-current Tue Oct 29 07:31:32 1996 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id HAA02238 for current-outgoing; Tue, 29 Oct 1996 07:31:32 -0800 (PST) Received: from irz301.inf.tu-dresden.de (irz301.inf.tu-dresden.de [141.76.1.11]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id HAA02233 for ; Tue, 29 Oct 1996 07:31:28 -0800 (PST) Received: from sax.sax.de (sax.sax.de [193.175.26.33]) by irz301.inf.tu-dresden.de (8.6.12/8.6.12-s1) with ESMTP id QAA22664; Tue, 29 Oct 1996 16:25:54 +0100 Received: (from uucp@localhost) by sax.sax.de (8.6.12/8.6.12-s1) with UUCP id QAA07062; Tue, 29 Oct 1996 16:25:53 +0100 Received: (from j@localhost) by uriah.heep.sax.de (8.8.2/8.6.9) id QAA05144; Tue, 29 Oct 1996 16:24:44 +0100 (MET) From: J Wunsch Message-Id: <199610291524.QAA05144@uriah.heep.sax.de> Subject: Re: /var/mail (was: re: Help, permission problems...) To: MRC@CAC.Washington.EDU (Mark Crispin) Date: Tue, 29 Oct 1996 16:24:44 +0100 (MET) Cc: roberto@keltia.freenix.fr, current@FreeBSD.org, scrappy@ki.net In-Reply-To: from Mark Crispin at "Oct 28, 96 10:47:51 pm" X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E X-Mailer: ELM [version 2.4ME+ PL17 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-current@FreeBSD.org X-Loop: FreeBSD.org Precedence: bulk As Mark Crispin wrote: > c) fcntl() locking is not respected by many mail programs. Virtually > all programs respect .lock files. Except for mail.local, the basic mail deliverer in the first place. Since all the locking is advisory, you are basically bound to what the mail delivery tool uses. You've got no other choice. All the .lock files will lock the various mail readers very fine -- but nobody uses multiple mail readers simultaneously. The .lock files won't prevent mail.local from delivering new mail -- hence they're useless. > flock() locking does not work over NFS at all. Only since our lockd is not yet ready. It is supposed to work with NFS, too. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)