Cache_req_body patch for bug #1664

[Arianna Aondio]

Hi everyone,
before Hamburg VDD I had sent an email regarding req.body handling and
user-accesible functions.
I attach a patch for bug #1664: std.cache_req_body(BYTES size)doesn't have
errors handling on the provided size limitation.

The proposed solution let Varnish either buffer the whole request body or
fail the request.

If this patch is ok, I can then start digging into user-accesible functions.

Comments much appreciated.


-- 
Arianna Aondio
Software Developer | Varnish Software AS
Mobile: +47 980 62 619

 We Make Websites Fly
www.varnish-software.com
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