Class: Resolv::IPv6
- Inherits:
-
Object
- Object
- Resolv::IPv6
- Defined in:
- lib/resolv.rb
Constant Summary collapse
- Regex_8Hex =
/\A (?:[0-9A-Fa-f]{1,4}:){7} [0-9A-Fa-f]{1,4} \z/x
- Regex_CompressedHex =
/\A ((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?) :: ((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?) \z/x
- Regex_6Hex4Dec =
/\A ((?:[0-9A-Fa-f]{1,4}:){6,6}) (\d+)\.(\d+)\.(\d+)\.(\d+) \z/x
- Regex_CompressedHex4Dec =
/\A ((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?) :: ((?:[0-9A-Fa-f]{1,4}:)*) (\d+)\.(\d+)\.(\d+)\.(\d+) \z/x
- Regex =
/ (?:#{Regex_8Hex}) | (?:#{Regex_CompressedHex}) | (?:#{Regex_6Hex4Dec}) | (?:#{Regex_CompressedHex4Dec})/x
Instance Attribute Summary collapse
-
#address ⇒ Object
readonly
Returns the value of attribute address.
Class Method Summary collapse
Instance Method Summary collapse
- #==(other) ⇒ Object
- #eql?(other) ⇒ Boolean
- #hash ⇒ Object
-
#initialize(address) ⇒ IPv6
constructor
A new instance of IPv6.
- #inspect ⇒ Object
- #to_name ⇒ Object
- #to_s ⇒ Object
Constructor Details
#initialize(address) ⇒ IPv6
Returns a new instance of IPv6.
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# File 'lib/resolv.rb', line 1889 def initialize(address) unless address.kind_of?(String) && address.length == 16 raise ArgumentError.new('IPv6 address must be 16 bytes') end @address = address end |
Instance Attribute Details
#address ⇒ Object (readonly)
Returns the value of attribute address
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# File 'lib/resolv.rb', line 1895 def address @address end |
Class Method Details
.create(arg) ⇒ Object
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# File 'lib/resolv.rb', line 1843 def self.create(arg) case arg when IPv6 return arg when String address = '' if Regex_8Hex =~ arg arg.scan(/[0-9A-Fa-f]+/) {|hex| address << [hex.hex].pack('n')} elsif Regex_CompressedHex =~ arg prefix = $1 suffix = $2 a1 = '' a2 = '' prefix.scan(/[0-9A-Fa-f]+/) {|hex| a1 << [hex.hex].pack('n')} suffix.scan(/[0-9A-Fa-f]+/) {|hex| a2 << [hex.hex].pack('n')} omitlen = 16 - a1.length - a2.length address << a1 << "\0" * omitlen << a2 elsif Regex_6Hex4Dec =~ arg prefix, a, b, c, d = $1, $2.to_i, $3.to_i, $4.to_i, $5.to_i if (0..255) === a && (0..255) === b && (0..255) === c && (0..255) === d prefix.scan(/[0-9A-Fa-f]+/) {|hex| address << [hex.hex].pack('n')} address << [a, b, c, d].pack('CCCC') else raise ArgumentError.new("not numeric IPv6 address: " + arg) end elsif Regex_CompressedHex4Dec =~ arg prefix, suffix, a, b, c, d = $1, $2, $3.to_i, $4.to_i, $5.to_i, $6.to_i if (0..255) === a && (0..255) === b && (0..255) === c && (0..255) === d a1 = '' a2 = '' prefix.scan(/[0-9A-Fa-f]+/) {|hex| a1 << [hex.hex].pack('n')} suffix.scan(/[0-9A-Fa-f]+/) {|hex| a2 << [hex.hex].pack('n')} omitlen = 12 - a1.length - a2.length address << a1 << "\0" * omitlen << a2 << [a, b, c, d].pack('CCCC') else raise ArgumentError.new("not numeric IPv6 address: " + arg) end else raise ArgumentError.new("not numeric IPv6 address: " + arg) end return IPv6.new(address) else raise ArgumentError.new("cannot interpret as IPv6 address: #{arg.inspect}") end end |
Instance Method Details
#==(other) ⇒ Object
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# File 'lib/resolv.rb', line 1915 def ==(other) return @address == other.address end |
#eql?(other) ⇒ Boolean
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# File 'lib/resolv.rb', line 1919 def eql?(other) return self == other end |
#hash ⇒ Object
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# File 'lib/resolv.rb', line 1923 def hash return @address.hash end |
#inspect ⇒ Object
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# File 'lib/resolv.rb', line 1905 def inspect return "#<#{self.class} #{self.to_s}>" end |
#to_name ⇒ Object
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# File 'lib/resolv.rb', line 1909 def to_name # ip6.arpa should be searched too. [RFC3152] return DNS::Name.new( @address.unpack("H32")[0].split(//).reverse + ['ip6', 'int']) end |
#to_s ⇒ Object
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# File 'lib/resolv.rb', line 1897 def to_s address = sprintf("%X:%X:%X:%X:%X:%X:%X:%X", *@address.unpack("nnnnnnnn")) unless address.sub!(/(^|:)0(:0)+(:|$)/, '::') address.sub!(/(^|:)0(:|$)/, '::') end return address end |