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adef20d1e341d7c6a4478d5d6e673aede928331b
We use as features even the four reserved TCP flags (some of them are no longer reserved but declared for a particular purpose by some RFCs). getFlags only returns 8 bits, leading to garbage in the feature vector in the higher-order positions. This doesn't affect the integrity of fingerprint submissions, because they copy the packet contents directly and don't go through the getFlags accessor.
Here is some documentation for Nmap, but these files are much less comprehensive than what you'll find at the actual Nmap documentation site ( http://nmap.org ).
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