[tor-bugs] #30920 [Core Tor/Tor]: Detect uint64 overflow in config_parse_units()

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#30920: Detect uint64 overflow in config_parse_units()
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 Reporter:  nickm          |          Owner:  (none)
     Type:  defect         |         Status:  new
 Priority:  Low            |      Milestone:  Tor: 0.4.3.x-final
Component:  Core Tor/Tor   |        Version:
 Severity:  Minor          |     Resolution:
 Keywords:  easy overflow  |  Actual Points:
Parent ID:                 |         Points:
 Reviewer:                 |        Sponsor:
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Comment (by guigom):

 The SSIZE_MAX bit may be interfering with 64bit arithmetic in 32bit
 machines as seen in this error in AppVeyor build.

 [https://ci.appveyor.com/project/torproject/tor/builds/27495711/job/049andnqliomgw0u#L6029]

 Tomorrow (CEST) I'll test with UINT64_MAX.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30920#comment:15>
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