Bill Blough created XERCESC-2085:
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             Summary: Crash in PSVIWriter due to strrchr returning NULL
                 Key: XERCESC-2085
                 URL: https://issues.apache.org/jira/browse/XERCESC-2085
             Project: Xerces-C++
          Issue Type: Bug
          Components: Samples/Tests
         Environment: Debian GNU/Linux amd64
            Reporter: Bill Blough
            Priority: Minor


This was reported in Debian quite some time ago (I was not maintainer then).  I 
have fixed it in Debian and am forwarding my patch.

The original Debian bug report can be found at 
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=715592

PSVIWriter uses strrchr but does not properly handle a NULL return value, 
causing strcat to attempt to dereference a NULL pointer.

My patch adds a check that the result of strrchr (for the '/' case) is not null 
before executing the strcat.  The case for '\\' is not affected because of the 
"greater than" check just prior.





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