URL:
  <http://gna.org/bugs/?17677>

                 Summary: NULL dereference in city sanity check debug message
                 Project: Freeciv
            Submitted by: jtn
            Submitted on: Wed Feb  9 00:04:50 2011
                Category: None
                Severity: 2 - Minor
                Priority: 5 - Normal
                  Status: Ready For Test
             Assigned to: jtn
        Originator Email: 
             Open/Closed: Open
                 Release: 2.2.4,2.3.0-beta3
         Discussion Lock: Any
        Operating System: None
         Planned Release: 2.2.5,2.3.0,2.4.0

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Details:

In city_from_wonder(), when the server wants to say something like

1: Player Vercingétorix (nb 0) has outdated wonder info for Copernicus'
Observatory (nb 44), it points to city nb 343.

it actually segfaults due to dereferencing 'pcity' when it's guaranteed to be
NULL.




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