# File lib/net/ssh/transport/hmac/abstract.rb, line 22 def mac_length(*v) @mac_length = nil if !defined?(@mac_length) if v.empty? @mac_length = superclass.mac_length if @mac_length.nil? && superclass.respond_to?(:mac_length) return @mac_length elsif v.length == 1 @mac_length = v.first else raise ArgumentError, "wrong number of arguments (#{v.length} for 1)" end end