Was crashing on unparseable dates (example: "2147483647Z"). Now the
exact string is placed in structured output when it cannot be
normalized. Also, the structured-format timestamp is used for Normal
output for consistency; no timezone offset was previously displayed.
Scripts may now return a key–value table, or such a table in addition to
a string. The table will be automatically formatted for normal output
and will appear as a hierarchy of elements in XML output.
Some history and discussion of this development can be found at
https://secwiki.org/w/Nmap/Structured_Script_Output.
This is a merge of r29484:29569 from /nmap-exp/david/xml-output.
Instead of having an array called STARTTLS_PORTS, with linear lookup for
membership, defined SPECIALIZED_FUNCS, mapping port numbers to
negotiation functions. This make sit a little easier to add other SSL
negotiation mechanisms, like HTTP Upgrade.
socket:connect(host.ip, port.number)
socket:connect(host.ip, port.number, port.protocol)
to this:
socket:connect(host, port)
connect can take host and port tables now, and the default protocol is
taken from the port table if possible.
