BIND 10 #3228: Rethink logging capability in libdhcp++

[BIND 10 Development]

#3228: Rethink logging capability in libdhcp++
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                   Reporter:  tomek  |                 Owner:
                       Type:         |                Status:  new
  enhancement                        |             Milestone:  DHCP
                   Priority:         |  Outstanding Tasks
  medium                             |              Keywords:
                  Component:         |             Sensitive:  0
  libdhcp                            |           Sub-Project:  DHCP
               CVSS Scoring:         |  Estimated Difficulty:  0
            Defect Severity:  N/A    |           Total Hours:  0
Feature Depending on Ticket:         |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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 Lack of logging capability was very painful when we were trying to debug
 sockets opening and address binding during dry-run demo.

 We need to rethink logging capability there. Direct use of log4cplus is
 one way, but it has a downside of adding dependency to solutions that are
 based on it.

 Another possible way to consider would be to define a buffer that
 libdhcp++ could write to. It would contain an error messages. Those can be
 printed by higher layers if error is reported. This is very easy to
 implement and does not take much space, so it is ok for embedded
 environments.

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Ticket URL: <http://bind10.isc.org/ticket/3228>
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