Date: Wed, 12 Feb 2003 15:28:46 -0800 From: Ross Lippert <ripper@eskimo.com> To: freebsd-questions@freebsd.org Subject: devfs and /dev/fd/3 Message-ID: <20030212152846.A21838@eskimo.eskimo.com>
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I just installed freebsd 5.0. One gotcha that got me was in my
lpif filter, which used to use a clever set of redirects to send
only the outputfile output of gs to stdout while the stdout
output of gs was sent to stderr:
exec 3>&1 1>&2
/usr/local/bin/gs -dSAFER -dNOPAUSE -q -sDEVICE=cdj550 \
-sOutputFile=/dev/fd/3 - && exit 0
However, with the new devfs, I seem to be short a file descriptor,
namely, fd/3. So I must do
/usr/local/bin/gs -dSAFER -dNOPAUSE -q -sDEVICE=cdj550 \
-sOutputFile=- - && exit 0
Which will work as long as gs doesn't decide to write something to
stdout, at which point something bad will come out of my printer.
Is there a better way to accomplish the above?
-r
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