BIND 10 #2086: allow construct LabelSequence from "raw data"

[BIND 10 Development]

#2086: allow construct LabelSequence from "raw data"
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                   Reporter:         |                 Owner:  jelte
  jinmei                             |                Status:  reviewing
                       Type:  task   |             Milestone:
                   Priority:         |  Sprint-20120717
  medium                             |            Resolution:
                  Component:         |             Sensitive:  0
  libdns++                           |           Sub-Project:  DNS
                   Keywords:         |  Estimated Difficulty:  6
            Defect Severity:  N/A    |           Total Hours:  0
Feature Depending on Ticket:         |
  scalable inmemory                  |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Comment (by jinmei):

 Replying to [comment:8 muks]:
 > Jelte: One more thing, sorry: What happens if the data passed to the raw
 data constructor exceeds MAX_LABELLEN and MAX_WIRE? How do we handle
 these? There should also be tests to test these conditions.

 As noted in the ticket description, it's indeed worth considering how
 much we should validate the input.  While it could be relatively
 expensive for input that is basically assumed to be safe, I guess it
 may be still better to make sure at the constructor that the resulting
 sequence is really valid.  We can subsequently check the performance
 impact (after completing everything) and revisit how much we should
 skip the check for higher performance.

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Ticket URL: <http://bind10.isc.org/ticket/2086#comment:10>
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