[xml] A long URL causes SEGV

[teranisi gohome org (Yuuichi Teranishi)]

Hi,

An URL longer than 4096(?) causes SEGV while using nanohttp in libxml2.
For example, following command dumps core.

% testReader  http://`perl -e 'print "A" x 5000'`

I think there should be a length checking code in somewhere of the
xmlNanoHTTPScanURL.

Thanks,
--
Yuuichi Teranishi <teranisi gohome org>
GPG Public Key: http://www.gohome.org/gpg/teranisi.asc
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