BIND 10 #1600: Use UDPSyncServer for b10-auth

[BIND 10 Development]

#1600: Use UDPSyncServer for b10-auth
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                   Reporter:         |                 Owner:  muks
  jinmei                             |                Status:  reviewing
                       Type:  task   |             Milestone:
                   Priority:  major  |  Sprint-20120306
                  Component:         |            Resolution:
  b10-auth                           |             Sensitive:  0
                   Keywords:         |           Sub-Project:  DNS
            Defect Severity:  N/A    |  Estimated Difficulty:  5
Feature Depending on Ticket:  auth   |           Total Hours:  0
  performance                        |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Comment (by muks):

 I propose a few changes to the patch:

 * if (1 == foo) {} else if (2 == foo) {} else if ...  is better replaced
 with switch
 * Instead of the 1, 2, etc. values there, why aren't the UPDVersion enum
 values used {SYNC_, ASYNC_}
 * Some places you use 'param_flags', and in others, 'para_flags'.
 'param_flags' is better for both I guess.

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Ticket URL: <http://bind10.isc.org/ticket/1600#comment:11>
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