Implements the Reserved bits for TCPHeader.

Header Definition

 Fixnum (1 bit)  :r1
 Fixnum (1 bit)  :r2
 Fixnum (1 bit)  :r3
Methods
N
R
T
Included Modules
Class Public methods
new(args={})

Source: show 

# File lib/packetfu/protos/tcp.rb, line 95
                def initialize(args={})
                        super(
                                args[:r1] || 0,
                                args[:r2] || 0,
                                args[:r3] || 0) if args.kind_of? Hash
                end
Instance Public methods
read(str)

Reads a string to populate the object.

Source: show 

# File lib/packetfu/protos/tcp.rb, line 108
                def read(str)
                        force_binary(str)
                        return self if str.nil? || str.size.zero?
                        if 1.respond_to? :ord
                                byte = str[0].ord
                        else
                                byte = str[0]
                        end
                        self[:r1] = byte & 0b00000100 == 0b00000100 ? 1 : 0
                        self[:r2] = byte & 0b00000010 == 0b00000010 ? 1 : 0
                        self[:r3] = byte & 0b00000001 == 0b00000001 ? 1 : 0
                        self
                end
to_i()

Returns the Reserved field as an integer.

Source: show 

# File lib/packetfu/protos/tcp.rb, line 103
                def to_i
                        (r1.to_i << 2) + (r2.to_i << 1) + r3.to_i
                end