lib/packetgen/header/eth.rb in packetgen-2.8.7 vs lib/packetgen/header/eth.rb in packetgen-3.0.0

@@ -55,11 +55,13 @@
         # Read a human-readable string to populate +MacAddr+
         # @param [String] str
         # @return [self]
         def from_human(str)
           return self if str.nil?
+
           bytes = str.split(/:/)
           raise ArgumentError, 'not a MAC address' unless bytes.size == 6
+
           self[:a0].read(bytes[0].to_i(16))
           self[:a1].read(bytes[1].to_i(16))
           self[:a2].read(bytes[2].to_i(16))
           self[:a3].read(bytes[3].to_i(16))
           self[:a4].read(bytes[4].to_i(16))