[tor-bugs] #23643 [Core Tor/Tor]: Type-check struct members that are passed to confparse

Tor Bug Tracker & Wiki blackhole at torproject.org
Mon Sep 25 19:32:06 UTC 2017

#23643: Type-check struct members that are passed to confparse
 Reporter:  nickm         |          Owner:  nickm
     Type:  defect        |         Status:  needs_revision
 Priority:  Medium        |      Milestone:  Tor: 0.3.2.x-final
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:  catalyst      |        Sponsor:

Comment (by catalyst):


 * Instead of using a null pointer, use the address of a static object of
 the appropriate type.  We presumably don't care too much about the extra
 memory footprint if we're building test code.
 * Use an equality operator instead of pointer subtraction.  The equality
 operators (with both operands being pointers) have the same constraints
 about type compatibility as subtraction, but don't have the requirement
 that both pointers point to members of the same array.

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23643#comment:5>
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