BIND 10 #2595: cmdctl with chusr crashes due to permission issue

[BIND 10 Development]

#2595: cmdctl with chusr crashes due to permission issue
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            Reporter:  jinmei        |                        Owner:
                Type:  defect        |  jinmei
            Priority:  medium        |                       Status:
           Component:  cmd-ctl       |  reviewing
            Keywords:                |                    Milestone:
           Sensitive:  0             |  Sprint-20130205
         Sub-Project:  Core          |                   Resolution:
Estimated Difficulty:  3             |                 CVSS Scoring:
         Total Hours:  0             |              Defect Severity:  N/A
                                     |  Feature Depending on Ticket:
                                     |          Add Hours to Ticket:  0
                                     |                    Internal?:  0
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Changes (by jelte):

 * owner:  jelte => jinmei


Comment:

 Hmz, it appears it depends on the specific python and internal libraries;
 I get ECONNRESET whether the socket is closed or left open (and closed by
 scope), and only rarely an ssl.SSLError (it does happen, but about 1 in
 100 times... I guess with my system it depends on when exactly it
 notices).

 So I guess the best we could do for now would be to do the 'helpful'
 message *both* for resets and SSLError.

 So I did that. I have tested with python 3.3 and .errno works, however the
 SSLError.__str__() has been changed as well, so we can't directly compare
 strings anymore. Added a small helper function to compare printed messages
 against a list of regexps.

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Ticket URL: <http://bind10.isc.org/ticket/2595#comment:14>
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