Re: [Qemu-devel] adding search to dhcp

[Michael Tokarev <mjt@tls.msk.ru>]

12.05.2011 00:49, Jan Kiszka пишет:
> On 2011-05-11 18:08, Stefan Hajnoczi wrote:
>> On Wed, May 11, 2011 at 4:22 PM, Carl Karsten <carl@personnelware.com> wrote:
>>> On Wed, May 11, 2011 at 6:01 AM, Markus Armbruster <armbru@redhat.com> wrote:
>>>> Stefan Hajnoczi <stefanha@gmail.com> writes:
>>>>
>>>>> On Tue, May 10, 2011 at 6:40 PM, Carl Karsten <carl@personnelware.com> wrote:
>>>>>> I would expect the syntax to look like this:
>>>>>>
>>>>>> qemu -hda 1.qcow2 -net nick -net
>>>>>> user,hostname=qemu,search=example.com,sales.example.com
>>>>>
>>>>> Comma escaping is needed but it seems like a reasonable feature to me.
>>>>
>>>> Comma escaping is ugly:
>>>> -net user,hostname=qemu,search=example.com,,sales.example.com
>>>>
>>>> Could we have multiple search options instead?  Like this:
>>>> -net user,hostname=qemu,search=example.com,search=sales.example.com
>>>>
>>>
>>> How about:
>>>
>>> -net user,hostname=qemu,search="example.com,sales.example.com"
>>
>> That does not work the way you'd expect:
>> $ echo asdf=asdf,ok="this,is,a,test"
>> asdf=asdf,ok=this,is,a,test
>>
>> Also, let's not get into the business of matching quotes and passing
>> them escaped on the shell.  That's just as ugly as escaping commas and
>> more work.
>>
>> I think the two options are using QEMU's typical comma escaping ',,'
>> or specifying the option multiple times.  I'd go with comma escaping
>> for consistency.  I'm not aware of any other option in QEMU that is
>> specified multiple times.
> 
> -net user,hostfwd=...,hostfwd=...
> 
> Let's got for multiple specification, ',,' is just ugly IMHO.

I second this, just repeat the specification, please no double ,,.
Or alternatively, search1=foo,search2=bar, but this is also sort
of ugly.

But I'm not sure why there's no way to use some other character,
like colon (:) for example - it's used for protocol:details
already, and for domain names it works well too...

/mjt