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Date: Thu, 06 Dec 2012 11:28:16 +0800
From: David Xu <davidxu@freebsd.org>
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To: Marco Steinbach <coco@executive-computing.de>
Subject: Re: grep -Dskip doesn't skip FIFOs
References: <alpine.BSF.2.00.1212052350170.36676@probsd.c0c0.intra>
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On 2012/12/06 07:07, Marco Steinbach wrote:
> Hi there,
>
> grep(1) does not seem to skip FIFOs when told to.

<snip>

I think you need a patch to fix it, the bug is in ggrep, it tries to
open a FIFO before checking if it is a FIFO, then blocked.

http://people.freebsd.org/~davidxu/patch/grep.c.diff