[tor-bugs] #31475 [Core Tor/Tor]: config: stop using atof()

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#31475: config: stop using atof()
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     Reporter:  nickm         |      Owner:  (none)
         Type:  defect        |     Status:  new
     Priority:  Low           |  Milestone:  Tor: 0.4.2.x-final
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:
Actual Points:                |  Parent ID:
       Points:  0.5           |   Reviewer:
      Sponsor:                |
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 The atof() call can't detect errors in a reasonable way, but we still use
 it when parsing configuration files.  We should fix that.

 Let's not touch this till after #29211 is done, since that code is in
 flux.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31475>
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