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Date:      Tue, 15 May 2001 22:03:30 -0400
From:      Sergey Babkin <babkin@bellatlantic.net>
To:        Kris Kennaway <kris@obsecurity.org>
Cc:        Brian Somers <brian@Awfulhak.org>, Alfred Perlstein <bright@wintelcom.net>, Poul-Henning Kamp <phk@critter.freebsd.dk>, Robert Watson <rwatson@FreeBSD.org>, Greg Lehey <grog@lemis.com>, Eric Melville <eric@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: Destroying and remaking device nodes
Message-ID:  <3B01DFF2.87D3649@bellatlantic.net>
References:  <bright@wintelcom.net> <200105142354.f4ENs5514952@hak.lan.Awfulhak.org> <20010514171210.A66354@xor.obsecurity.org>

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Kris Kennaway wrote:
> 
> On Tue, May 15, 2001 at 12:54:04AM +0100, Brian Somers wrote:
> > > * Poul-Henning Kamp <phk@critter.freebsd.dk> [010514 07:08] wrote:
> > > >
> > > > I intended to ignore the major and minor arguments in mknod(2), simply
> > > > treating it as a request to re-create the named node.
> > >
> > > It sounds nice, however that's a major POLA violation, no?
> >
> > I agree.  I think mknod should either do as asked or fail, not do
> > what the developer thinks the user should have asked.
> 
> The problem is, how do you know the major/minor number of the device,
> if you haven't installed MAKEDEV (which is about the only reference I
> know of apart from the source)?

How about making the major and minor arguments optional ? When
ran on devfs, mknod would complain and fail if it was given explicit
major/minor and create the file if not given. Whan ran on a common
filesystem it would work the old way.

-SB

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