class PacketFu::Octets

# File lib/packetfu/protos/ip/header.rb, line 13
def initialize(args={})
  super(
  Int32.new(args[:ip_addr]))
end

# File lib/packetfu/protos/ip/header.rb, line 76
def o1
  (self.to_i >> 24) & 0xff
end

# File lib/packetfu/protos/ip/header.rb, line 81
def o2
  (self.to_i >> 16) & 0xff
end

# File lib/packetfu/protos/ip/header.rb, line 86
def o3
  (self.to_i >> 8) & 0xff
end

# File lib/packetfu/protos/ip/header.rb, line 91
def o4
  self.to_i & 0xff
end

# File lib/packetfu/protos/ip/header.rb, line 65
def octets
  addr = self.to_i
  [
    ((addr >> 24) & 0xff),
    ((addr >> 16) & 0xff),
    ((addr >> 8) & 0xff),
    (addr & 0xff)
  ]
end

# File lib/packetfu/protos/ip/header.rb, line 24
def read(str)
  force_binary(str)
  return self if str.nil?
  self[:ip_addr].read str[0,4]
  self
end

# File lib/packetfu/protos/ip/header.rb, line 44
def read_quad(str)
  match = IPV4_RE.match(str)
  if match.nil?
    raise ArgumentError.new("str is not a valid IPV4 address")
  end
    a = match[1].to_i
    b = match[2].to_i
    c = match[3].to_i
    d = match[4].to_i
  unless (a >= 0 && a <= 255 &&
          b >= 0 && b <= 255 &&
          c >= 0 && c <= 255 &&
          d >= 0 && d <= 255)
    raise ArgumentError.new("str is not a valid IPV4 address")
  end

  self[:ip_addr].value = (a<<24) + (b<<16) + (c<<8) + d
  self
end

# File lib/packetfu/protos/ip/header.rb, line 39
def to_i
  self[:ip_addr].to_i
end

# File lib/packetfu/protos/ip/header.rb, line 19
def to_s
  [self[:ip_addr].to_i].pack("N")
end

# File lib/packetfu/protos/ip/header.rb, line 32
def to_x
  # This could be slightly faster if we reproduced the code in
  # 'octets()' and didn't have to map to strings.
  self.octets.map(&:to_s).join('.')
end