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

[Jelte Jansen]

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Simon Vallet wrote:
> Hi,
> 
> we're currently considering using ldns as a validating stub resolver in
> a number of applications needing DNSSEC support.
> 

Cool, let me know how you are faring, and how we can improve on ldns.

> 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*?

For individual rdata fields, you can get access to the actual data with
these functions:

uint8_t *ldns_rdf_data (const ldns_rdf *rd)
        returns the data of the rdf.

size_t ldns_rdf_size (const ldns_rdf *rd)
        returns the size of the rdf.

Jelte
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