david a066cd7bdc Add the missing dirname function to http-favicon.nse. I missed this when ...

I copied parse_url_relative from favicon-survey.nse. Ron Meldau reported
that this error is raised:
  http-favicon.nse:141: variable 'dirname' is not declared
It happens when a web page specifies a relative icon URL in a link
element. (dirname is used to absolutize the URL.)

Also, I changed to code to be sure to pass a plain string and number for
the host and port to parse_url_relative. Otherwise parse_url_relative
may return the tables that it receives and complicate the matching code
to decide if a URL should be followed.

2010-01-22 18:45:04 +00:00

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