On 6/28/18, jungle Boogie <jungleboog...@gmail.com> wrote:
> The res_query() function provides an interface to the server query
> mechanism. It constructs a query, sends it to the local server, awaits
> a response, and makes preliminary checks on the reply. The query
> requests information of the specified type and class for the specified
> fully qualified domain name dname. The reply message is left in the
> answer buffer with length anslen supplied by the caller. Values for
> the class and type fields are defined in <arpa/nameser.h>.
> I think that's what you want!


So can you write up a little subroutine to parse the binary DNS reply
and extract the name of the MX host for us?

D. Richard Hipp
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