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From: Peter Maydell <peter.maydell@linaro.org>
Date: Tue, 13 Jan 2015 18:05:50 +0000
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Subject: Re: [Qemu-devel] [PATCH v4] block/raw-posix.c: Fixes
 raw_getlength() on Mac OS X so that it reports the correct length of a real
 CD
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To: Programmingkid <programmingkidx@gmail.com>
Cc: Stefan Hajnoczi <stefanha@gmail.com>, qemu-devel qemu-devel <qemu-devel@nongnu.org>

On 13 January 2015 at 17:52, Programmingkid <programmingkidx@gmail.com> wrote:
> What is the exact command you use with QEMU involving the /dev/null device?

"make check" includes some tests which do this...

> What value is suppose to be returned when using a device like /dev/null?

I think we should fall back to the "try lseek" code path, as we do on
Linux. (That will return zero, as it happens.)

-- PMM