[Pdns-dev] passing original QTYPE to the backend

Zane Thomas zane.thomas at gmail.com
Sun Feb 3 07:22:09 CET 2013


DNSPacket * which is passed in to the lookup method can be used to
determine what the original query type was. I very much needed to use
the packet pointer in order to select which records of a set which, in
the database my backend interfaces too, are as a set non-rfc
compliant. My approach was to look a  the packet query type and return
to pdns only those records it needs to answer the query.


On Sat, Feb 2, 2013 at 10:17 PM, Ask Bjørn Hansen <ask at develooper.com> wrote:
> On Feb 2, 2013, at 10:08 PM, Peter van Dijk <peter.van.dijk at netherlabs.nl> wrote:
>> However, no backend should *need* the exact qtype. Why do you think you need it?
> For my application[1] it's (relatively) expensive to figure out the answer and the answers can't be cached in the server, so figuring it out for any possible record type is just wasteful.
> Ask
> [1] I made it in Go instead of as a pipe backend when I was upgrading the system last fall: https://github.com/abh/geodns
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