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Date: Wed, 06 May 2009 12:00:05 +0200
From: Kevin Wolf <kwolf@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH] Add HTTP protocol using curl v2
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To: Avi Kivity <avi@redhat.com>
Cc: alex@csgraf.de, nolan@sigbus.net, qemu-devel@nongnu.org

Avi Kivity schrieb:
> Daniel P. Berrange wrote:
>> Then I'd prefer we add a protocol=XXX option for magic protocols. This 
>> would be easier to use & clearer than requiring escaping of magic 
>> characters, eg
>>
>>    -drive file=/some/path:with:colons,protocol=file
>>    -drive file=http://some/path,protocol=uri
>>
>> For compatability, we could make it such that if protocol=XXX was left out,
>> it could try and "guess" it, in same way QEMU does if format=XXX is left out
>> for content format.
>>   
> 
> How about
> 
>   -drive file=file:///some/path:with:colons?
> 
> Libvirt would use this unconditionally, command-line users can choose.

+1

The patch to achieve this would be pretty easy. You just need to assign
the file protocol to bdrv_raw and have it strip the file: prefix in its
open function.

Kevin