BIND 10 #1583: auth::Query NSEC3 support: Wildcard no data case

[BIND 10 Development]

#1583: auth::Query NSEC3 support: Wildcard no data case
-------------------------------------+-------------------------------------
                   Reporter:         |                 Owner:  jinmei
  jinmei                             |                Status:  accepted
                       Type:  task   |             Milestone:
                   Priority:  major  |  Sprint-20120221
                  Component:         |            Resolution:
  b10-auth                           |             Sensitive:  0
                   Keywords:         |           Sub-Project:  DNS
            Defect Severity:  N/A    |  Estimated Difficulty:  5
Feature Depending on Ticket:         |           Total Hours:  0
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
-------------------------------------+-------------------------------------

Comment (by jinmei):

 trac1583 is ready for review.

 This is basically a straightforward implementation of the ticket
 description.

 I've made one, not directly related extension to Message::addRRset()
 (commit bc105b5): reject null rrset with an exception.  There should
 be no valid case of passing a null pointer to this method (but we
 still want to pass it by pointer so we can use it in an STL-like
 container), so rejecting such cases should make sense anyway.  And, it
 will help simplify the query processing logic because then it wouldn't
 have to worry about buggy data source implementation that returns null
 RRset when the API says it shouldn't.

 I saw a slight possibility of refactoring existing parts of NSEC3 to
 unify common patterns, but at the moment the amount of code is not
 that much, so I decided to defer it to the cleanup ticket, #1587.

-- 
Ticket URL: <http://bind10.isc.org/ticket/1583#comment:8>
BIND 10 Development <http://bind10.isc.org>
BIND 10 Development