$this->state = SASL_NTLM_STATE_RESPOND_CHALLENGE;
break;
case SASL_NTLM_STATE_RESPOND_CHALLENGE:
$ntlm_response = $this->NTLMResponse(substr($response, 24, 8), $this->credentials["password"]);
$this->state = SASL_NTLM_STATE_RESPOND_CHALLENGE;
break;
case SASL_NTLM_STATE_RESPOND_CHALLENGE:
$ntlm_response = $this->NTLMResponse(substr($response, 24, 8), $this->credentials["password"]);