BIND 10 #3286: Message::fromWire cannot be called more than once per instance

[BIND 10 Development]

#3286: Message::fromWire cannot be called more than once per instance
-------------------------------------+-------------------------------------
                   Reporter:  tmark  |                 Owner:  UnAssigned
                       Type:         |                Status:  new
  defect                             |             Milestone:  New Tasks
                   Priority:  low    |              Keywords:
                  Component:         |             Sensitive:  0
  libdns++                           |           Sub-Project:  DNS
               CVSS Scoring:         |  Estimated Difficulty:  0
            Defect Severity:  N/A    |           Total Hours:  0
Feature Depending on Ticket:         |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
-------------------------------------+-------------------------------------
 Once an INBOUND message has been populated using the fromWire method,
 subsequent calls to isc::dns::Message::fromWire result in unpredictable
 behavior.  Typically an exception is thrown but which one can vary from
 one run to the next and it is not clear as the root cause.  If fromWire is
 not intended to be used more than once in the lifetime of a Message
 instance this should at least be documented.  Even better would be a a
 safety check in fromWire to throw an exception if fromWire is called more
 than once.

 This behavior is simple to reproduce.  Simple instantiate a Message and
 call fromWire twice with a valid packet buffer.  The first call will
 succeed, the second will fail.

-- 
Ticket URL: <http://bind10.isc.org/ticket/3286>
BIND 10 Development <http://bind10.isc.org>
BIND 10 Development