Class: Lib::BOOTP::Packet::Flags

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Includes:
Comparable
Defined in:
lib/lib/bootp/packet/flags.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(flags = 0) ⇒ Flags 



18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
 
# File 'lib/lib/bootp/packet/flags.rb', line 18

def initialize(flags=0)
  @flags = {}
  @flag = 0
  if flags.is_a? Integer
    case flags
      when 0x8000
        @flags[:b] = 1
        @flag = 0x8000
      when 0
        @flags[:b] = 0
        @flag = 0
      else
        raise ArgumentError, "Unknown flags value #{flags}"
    end
  elsif flags.is_a? Symbol
    case flags
      when :broadcast
        @flags[:b] = 1
        @flag = 0x8000
      when :unicast
        @flags[:b] = 0
        @flag = 0
      else
        raise ArgumentError, "Unknown flags value #{flags}"
    end
  else
    raise ArgumentError, 'FLAGS must by an Integer or Symbol' unless flags.is_a?(Integer) or flags.is_a?(Symbol)
  end
end

Class Method Details

.unpack(flags) ⇒ Object 



69
70
71
 
# File 'lib/lib/bootp/packet/flags.rb', line 69

def self.unpack(flags)
  self.new flags.unpack('n').first
end

Instance Method Details

#<=>(other) ⇒ Object 



48
49
50
51
 
# File 'lib/lib/bootp/packet/flags.rb', line 48

def <=>(other)
  other = Lib::BOOTP::Packet::Flags.new(other) unless other.is_a?(Lib::BOOTP::Packet::Flags)
  self.to_i <=> other.to_i
end

#broadcast ⇒ Object 



57
58
59
 
# File 'lib/lib/bootp/packet/flags.rb', line 57

def broadcast
  @flags[:b]
end

#broadcast? ⇒ Boolean 



53
54
55
 
# File 'lib/lib/bootp/packet/flags.rb', line 53

def broadcast?
  @flags[:b] == 1 ? true : false
end

#pack ⇒ Object 



65
66
67
 
# File 'lib/lib/bootp/packet/flags.rb', line 65

def pack
  [@flag.to_i].pack('n')
end

#to_s ⇒ Object Also known as: to_hex 



61
62
63
 
# File 'lib/lib/bootp/packet/flags.rb', line 61

def to_s
  "0x#{@flag.to_s(16)}"
end