Method: GeoIP#isp

Defined in:
lib/geoip.rb

#isp(hostname) ⇒ Object Also known as: organization

Search a ISP GeoIP database for the specified host, returning the ISP Not all GeoIP databases contain ISP information. Check maxmind.com

hostname is a String holding the host’s DNS name or numeric IP address.

Returns the ISP name.



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# File 'lib/geoip.rb', line 390

def isp(hostname)
  ip = lookup_ip(hostname)

  # Convert numeric IP address to an integer
  ipnum = iptonum(ip)

  case @database_type
  when Edition::ORG,
Edition::ISP,
Edition::DOMAIN,
Edition::ASNUM,
Edition::ACCURACYRADIUS,
Edition::NETSPEED,
Edition::USERTYPE,
Edition::REGISTRAR,
Edition::LOCATIONA,
Edition::CITYCONF,
Edition::COUNTRYCONF,
Edition::REGIONCONF,
Edition::POSTALCONF
    pos = seek_record(ipnum)
    read_isp(pos-@database_segments[0])
  else
    throw "Invalid GeoIP database type, can't look up Organization/ISP by IP"
  end
end