On Tue, 14 Jun 2011, Rieker Flaik wrote:

>> But why would you ask for such a range in the first place? That seems
>> utterly pointless.
>
> I do need to test a hash-tag which is in the first 200 bytes - and if
> this differs from the local hash-tag the full file will be downloaded.
> So yes, I need this CURLOPT_RANGE and it's very helpful.

No, that seems like a flawed reason.

You say you first want the first 200 bytes and *if the contents differs* then
you want the full/rest of the file, so why ask for both ranges at once? If you
just as well can ask for both ranges at once (which is the full file) then why
use the range header at all in the first place when you can just ask for the
whole thing and hash the first 200 bytes once they've arrived?

I would expect you to first do a range request for the first 200 bytes, and if
you find that the contents differ then you do a *second* request for the
remainder of the file. No mime parser needed for that!

> Thanks, I'll do so. Or do you know of a MIME parser which has this already
> implemented?

As it is standard MIME formatted I would assume that all MIME parsers will do
it. I don't know of any existing MIME parsers, no.

-- 
  / daniel.haxx.se
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