tree a50ef1ba6cc962300d0de99c8eb58d5128a78b85
parent 01b63498801053f131a0740eb9d13faf35d636c8
author Damien Miller <djm@google.com> 1419887771 +1100
committer Damien Miller <djm@google.com> 1419887771 +1100

avoid uninitialised free of ldns_res

If an invalid rdclass was passed to getrrsetbyname() then
this would execute a free on an uninitialised pointer.
OpenSSH only ever calls this with a fixed and valid rdclass.

Reported by Joshua Rogers