Date: Sun, 10 Dec 2000 13:56:27 -0500 (EST) From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu> To: Robert Watson <rwatson@FreeBSD.org> Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/etc crontab Message-ID: <200012101856.NAA30441@khavrinen.lcs.mit.edu> In-Reply-To: <Pine.NEB.3.96L.1001209223834.82272B-100000@fledge.watson.org> References: <200012092254.eB9Msbk55407@hak.lan.Awfulhak.org> <Pine.NEB.3.96L.1001209223834.82272B-100000@fledge.watson.org>
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<<On Sat, 9 Dec 2000 22:42:41 -0500 (EST), Robert Watson <rwatson@FreeBSD.org> said: > usual file locking problem: since they're advisory, they're inter-user and > enforced for root (!). This is a Good Thing. A locking mechanism which did not work for root would be practically useless. (Cf. the POSIX semantics for setuid(), and why we don't implement them.) > As such, any random process running as any random user can acquire > the lock and stack up all your periodic scripts, If and only if they are allowed to open the file in the first place. -GAWollman -- Garrett A. Wollman | O Siem / We are all family / O Siem / We're all the same wollman@lcs.mit.edu | O Siem / The fires of freedom Opinions not those of| Dance in the burning flame MIT, LCS, CRS, or NSA| - Susan Aglukark and Chad Irschick To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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