Resolv::IPv6

class Resolv::IPv6

父类:Object

Resolv :: DNS IPv6地址。

常量

正则表达式

一个复合IPv6地址Regexp。

Regex_6Hex4Dec

IPv4映射的IPv6地址格式a：b：c：d：e：f：wxyz

Regex_8Hex

IPv6地址格式a：b：c：d：e：f：g：h

Regex_CompressedHex

压缩的IPv6地址格式a :: b

Regex_CompressedHex4Dec

压缩的IPv4映射的IPv6地址格式a :: b：wxyz

属性

addressR

作为String的原始IPv6地址。

公共类方法

创建（arg）显示源

创建一个新的IPv6地址，arg其中可能是：

IPv6

返回arg。

串

arg 必须匹配其中一个IPv6 :: Regex *常量

# File lib/resolv.rb, line 2442
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

公共实例方法

to_name（）显示源

将此IPv6地址转换为Resolv :: DNS :: Name。

# File lib/resolv.rb, line 2517
def to_name
  return DNS::Name.new(
    @address.unpack("H32")[0].split(//).reverse + ['ip6', 'arpa'])
end