[tor-bugs] #31482 [Core Tor/Tor]: Avoid possible overflow when converting between coarse stamp to approx ms

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#31482: Avoid possible overflow when converting between coarse stamp to approx ms
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 Reporter:  teor                                 |          Owner:  teor
     Type:  defect                               |         Status:
                                                 |  needs_review
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.4.2.x-final
Component:  Core Tor/Tor                         |        Version:  Tor:
                                                 |  0.3.4.1-alpha
 Severity:  Normal                               |     Resolution:
 Keywords:  035-backport, 040-backport,          |  Actual Points:  0.5
  041-backport                                   |
Parent ID:                                       |         Points:  1
 Reviewer:  nickm                                |        Sponsor:
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Comment (by teor):

 One more question:
 * Do we need to make a similar change to the Windows code?
   * If so, should we abstract the common parts of these functions, to
 avoid duplicate code? (in a new ticket?)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31482#comment:3>
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