Date: Wed, 4 Jun 2003 06:43:56 -0700 From: "David P. Reese Jr." <daver@gomerbud.com> To: Marc Olzheim <marcolz@stack.nl> Cc: current@freebsd.org Subject: Re: devfs and /dev/fd/3 Message-ID: <20030604134356.GA13608@tombstone.localnet.gomerbud.com> In-Reply-To: <20030604133019.GA50874@stack.nl> References: <20030604133019.GA50874@stack.nl>
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On Wed, Jun 04, 2003 at 03:30:19PM +0200, Marc Olzheim wrote:
> Hi.
>
> I've seen the question once before, but it was not answered (on-list ?),
> so now that I run in on it, I'd like to know what to do:
>
> On FreeBSD 4.x, without devfs, the following worked:
> ( echo foo | tee /dev/fd/3 | tr f F ) 3>&1
>
> It should produce both "foo" and "Foo"
>
> FreeBSD 5 with devfs, however, does not create a /dev/fd/3 upon opening
> filedescriptor 3 by the shell, so there's no device to write to...
>
> How can I fix or circumvent this, aside from mounting a ufs partition
> with mknod-ed files over /dev/fd ?
You want fdescfs(5).
--
David P. Reese Jr. daver@gomerbud.com
--------------------------------------------------------------------------
It can be argued that returning a NULL pointer when asked to allocate
zero bytes is a silly response to a silly question.
-- FreeBSD manual page for malloc(3)
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