Re: devfs and /dev/fd/3

From: David P. Reese Jr. (daver_at_gomerbud.com)
Date: 06/04/03

  • Next message: Harti Brandt: "Re: devfs and /dev/fd/3" 
    Date: Wed, 4 Jun 2003 06:43:56 -0700
To: Marc Olzheim <marcolz@stack.nl>

    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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