class Resolv::IPv6
A Resolv::DNS
IPv6
address.
Constants
- Regex
A composite
IPv6
address Regexp.- Regex_6Hex4Dec
- Regex_8Hex
IPv6
address format a:b:c:d:e:f:g:h- Regex_8HexLinkLocal
IPv6
link local address format fe80:b:c:d:e:f:g:h%em1- Regex_CompressedHex
Compressed
IPv6
address format a::b- Regex_CompressedHex4Dec
- Regex_CompressedHexLinkLocal
Compressed
IPv6
link local address format fe80::b%em1
Attributes
address[R]
The raw IPv6
address as a String.
Public Class Methods
create(arg)
click to toggle source
Creates a new IPv6
address from arg
which may be:
IPv6
-
returns
arg
. - String
-
arg
must match one of the IPv6::Regex* constants
# File resolv.rb, line 2983 def self.create(arg) case arg when IPv6 return arg when String address = ''.b 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 = ''.b a2 = ''.b 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 = ''.b a2 = ''.b 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
Public Instance Methods
to_name()
click to toggle source
Turns this IPv6
address into a Resolv::DNS::Name
.
# File resolv.rb, line 3054 def to_name return DNS::Name.new( @address.unpack("H32")[0].split(//).reverse + ['ip6', 'arpa']) end