Implement proper reference counting for dns_keyfileio_t
Instead of relying on hash table search when using the keys, implement a proper reference counting in dns_keyfileio_t objects, and attach/detach the objects to the zone.
Closes #3731 (closed)
Instead of relying on hash table search when using the keys, implement a proper reference counting in dns_keyfileio_t objects, and attach/detach the objects to the zone.
Closes #3731 (closed)