BIND 10 #1308: auth NSEC support: Handle WILDCARD_EMPTY case

[BIND 10 Development]

#1308: auth NSEC support: Handle WILDCARD_EMPTY case
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                   Reporter:         |                 Owner:
  jinmei                             |                Status:  new
                       Type:  task   |             Milestone:
                   Priority:  major  |  Sprint-20111025
                  Component:         |            Resolution:
  b10-auth                           |             Sensitive:  0
                   Keywords:         |           Sub-Project:  DNS
            Defect Severity:  N/A    |  Estimated Difficulty:  0
Feature Depending on Ticket:         |           Total Hours:  0
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Comment (by jinmei):

 As noted in http://bind10.isc.org/ticket/1305#comment:3,
 we probably don't need to handle this case separately from
 WILDCARD_NXRRSET, because in either case what we should do is the
 same: perform find() again with NO_WILDCARD for the original query
 name (i.e. the name before wildcard expansion), confirm it results
 in NXDOMAIN, and adds the returned NSEC to the authority section.

 But we should still test both cases separately as how we end up these
 cases
 is still different.

-- 
Ticket URL: <http://bind10.isc.org/ticket/1308#comment:2>
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