Date: Sat, 16 May 2020 00:09:23 +0200 From: Joerg Sonnenberger <joerg@bec.de> To: freebsd-hackers@freebsd.org, hackers@freebsd.org Subject: Re: [HEADSUP] Disallowing read() of a directory fd Message-ID: <20200515220923.GA36597@bec.de> In-Reply-To: <20200515202526.GZ82984@trajan.stk.cx> References: <202005142017.04EKH0aA093503@fire.js.berklix.net> <202005152000.04FK0tjk006516@slippy.cwsent.com> <20200515202526.GZ82984@trajan.stk.cx>
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On Fri, May 15, 2020 at 10:25:26PM +0200, Arne Steinkamm wrote: > On Fri, May 15, 2020 at 01:00:55PM -0700, Cy Schubert wrote: > > It's been 42 or more years since this bug was introduced. Let's just fix it > > now instead of agonizing over it. > > I didn't want to add something as everything is said, > but this sentence is a little bit to provocative. > > Everything is a file describes one of the defining features of Unix. > > Calling this defining feature of Unix a bug shows to me that the ideas > behind Unix got lost in the FreeBSD universe too... Using linear storage for a directory is an implementation detail of the implementation. It's not a defining feature. "Reading" from a directory doesn't make sense for many other organisational forms. So, are you now arguing that leaky abstractions are a defining feature of Unix? Joerg
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