BIND 10 #1454: Pass UPDATE packets from b10-auth to DDNS module

[BIND 10 Development]

#1454: Pass UPDATE packets from b10-auth to DDNS module
-------------------------------------+-------------------------------------
                   Reporter:  jelte  |                 Owner:  jinmei
                       Type:  task   |                Status:  reviewing
                   Priority:  minor  |             Milestone:
                  Component:  DDNS   |  Sprint-20120207
                   Keywords:         |            Resolution:
            Defect Severity:  N/A    |             Sensitive:  0
Feature Depending on Ticket:  DDNS   |           Sub-Project:  DNS
        Add Hours to Ticket:  0      |  Estimated Difficulty:  3
                  Internal?:  0      |           Total Hours:  0
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Comment (by jinmei):

 Replying to [comment:17 vorner]:
 >
 > I updated the comment in the loop and added few TODO ones to some of the
 handlers.
 >
 > I also started handling the exceptions on accept.
 >
 > I believe the functions themself have better knowledge of what
 exceptions would be fatal and what not. A socket error from the accept is
 recoverable, we just didn't get the exception, but socket error from the
 check_command might not, for example (if it ever got out, I guess it
 should not, but if there was a bug…).
 >
 > Would this work?

 Looks okay, with one minor nit:
 {{{
 (probably coming from b10-auth). We continue serving on whanever other
 }}}
 s/whanever/whatever/ (or whichever?)

 With fixing this please feel free to merge.

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Ticket URL: <http://bind10.isc.org/ticket/1454#comment:18>
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