[ldns-users] Access to raw rdata in ressource records

[Wouter Wijngaards]

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Simon Vallet wrote:
> On Wed, 02 May 2007 16:04:35 +0200
> Jelte Jansen <jelte at NLnetLabs.nl> wrote:
>> Simon Vallet wrote:
> 
>> Cool, let me know how you are faring, and how we can improve on ldns.
> 
> I certainly will
> 
>>> Looking a bit at the API documentation, I wonder wether it is possible
>>> to have access to the raw rdata in an RR (i.e. a size and a void *,
>>> rather than an ldns_rdf **). Best for us would be to have a drop-in
>>> replacement for more common resolver functions, and as some apps do the
>>> rdata parsing themselves, I'd rather not reassemble a raw rdata to
>>> parse it again once we're out of the compatibility layer.
>>>
>> For individual rdata fields, or do you want to read out the complete
>> rdata from an rr in one void*?
> 
> Well, access to individual rdata fields is practical, since it is
> already parsed in an ldns_rdf **. But what I'm looking for is a pointer
> to the complete rdata from an rr, yes. 
> 
> It is not a big problem, since reassembling it from the ldns_rdf array
> is quite trivial, but I just wanted to make sure it was necessary. It
> seems the answer is yes.

Well you can also use ldns_rdf2wire(), it will give you a void* and
size_t. You can find its description in host2wire.h.

Best regards,
   Wouter

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