Class: IP::Range

Inherits:
Object
  • Object
show all
Defined in:
lib/ip/range.rb

Overview

IP::Range - Calculates a range of IP addresses, and returns an Array of IP::Address objects.

Usage

IP::Range[‘10.0.0.1’, ‘10.0.0.2’] => IP::Address objects between 10.0.0.1 and 10.0.0.2 (inclusive)

IP::Range can also take two IP::Address objects.

Will throw a IP::AddressException if for some reason addresses cannot be parsed.

Class Method Summary collapse

Class Method Details

.[](addr1, addr2) ⇒ Object

See the documentation for IP::Range for more information on this method.



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# File 'lib/ip/range.rb', line 23

def self.[](addr1, addr2)
  raw1, raw2 = [nil, nil]
  tmpip = nil
  
  if addr1.kind_of? String
    addr1 = IP::Address::Util.string_to_ip(addr1)
  elsif ! addr1.kind_of? IP::Address
    raise IP::AddressException.new("IP Address is not type String or IP::Address")
  end
  
  if addr2.kind_of? String
    addr2 = IP::Address::Util.string_to_ip(addr2)
  elsif ! addr2.kind_of? IP::Address
    raise IP::AddressException.new("IP Address is not type String or IP::Address")
  end

  if addr2.class.name != addr1.class.name
    raise IP::AddressException.new("First and Second IP in range are not of the same type")
  end
  
  raw1 = addr1.pack
  raw2 = addr2.pack

  range = []
  
  # use the class we were given to force certain results, instead
  # of relying on the fairly inaccurate unpack facility.
  range = (raw1..raw2).collect { |x| addr1.class.new(x) }

  return range
end