DOMDocumentImpl:: getPooledNString(const XMLCh *in, XMLSize_t n) returns incorrect string
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Key: XERCESC-1978
URL:
https://issues.apache.org/jira/browse/XERCESC-1978 Project: Xerces-C++
Issue Type: Bug
Components: DOM
Affects Versions: 3.1.1
Environment: Windows x32, but should be everywhere
Reporter: Rainer Prosi
Priority: Blocker
the methods returns the original string rather than the substring(n) if the substring and original string have the same hash code.
This leeds to corrupt xml files due to prefixes being replaced by the entire string:
Original version:
while (*pspe != 0)
{
if (XMLString::equals((*pspe)->fString, in))
return (*pspe)->fString;
...
Bugfix suggestion:
//RP 120416 we need to check for length of the returned <=n; else any hash matching string longer than n will be accepted --- bad snafu!
if (XMLString::equalsN((*pspe)->fString, in, n) && XMLString::stringLen( (*pspe)->fString)<=n)
Example prefix + attribute name that will fail:
HDM:
HDM:OffsetBack
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