require 'socket'
 class TCPSocket
     def external_encoding
         Encoding::BINARY
     end
 end
 
 require 'rexml/source'
 class REXML::IOSource
     alias_method :encoding_assign, :encoding=
     def encoding=(value)
         encoding_assign(value) if value
     end
 end
 
 begin
     # OpenSSL is optional and can be missing
     require 'openssl'
     class OpenSSL::SSL::SSLSocket
         def external_encoding
             Encoding::BINARY
         end
     end
 rescue
 # ignored
 end