int i = 0, n;

        while ( i < len ) {
            n = in.read(b, off + i, len - i);
            if ( n <= 0 ) {
                break;
            }
            i += n;
        }

        return i;
    }


    static int readPacketType ( InputStream in, byte[] buffer, int bufferIndex ) throws IOException {
        int n;

                if ( dr != null ) {
                    if ( log.isTraceEnabled() ) {
                        log.trace("Found at " + link);
                    }
                    break;
                }

                // walk up trying to find a match, do not go up to the root
                int nextSep = link.lastIndexOf('\\');
                if ( nextSep > 0 ) {

    /**
     * Vendor-specific default packages. If no packages are specified in
     * "java.protocol.handler.pkgs", the VM uses one or more default
     * packages, which are vendor specific. Sun's is included below
     * for convenience; others could be as well. If a particular vendor's
     * package isn't listed, it can be specified in
     * "java.protocol.handler.pkgs".
     */

                        }
                        setMechanisms(mechs);
                        break;
                    case 1:
                        ASN1BitString ctxFlags = DERBitString.getInstance(tagged, true);
                        setContextFlags(ctxFlags.getBytes()[ 0 ] & 0xff);
                        break;
                    case 2:

                    break;
                case 1:
                    setMechanism(ASN1ObjectIdentifier.getInstance(tagged, true));
                    break;
                case 2:
                    ASN1OctetString mechanismToken = ASN1OctetString.getInstance(tagged, true);
                    setMechanismToken(mechanismToken.getOctets());
                    break;
                case 3:

                            0, macSigningKey, 16, 24);
                break;
            case 3:
            case 4:
            case 5:
                macSigningKey = new byte[16];
                auth.getUserSessionKey(transport.server.encryptionKey, macSigningKey, 0);
                break;
            default:
                macSigningKey = new byte[40];

            setLMResponse(getLMResponse(type2, password));
            setNTResponse(getNTResponse(type2, password));
            break;
        case 2:
            byte[] nt = getNTResponse(type2, password);
            setLMResponse(nt);
            setNTResponse(nt);
            break;
        case 3:
        case 4:
        case 5:
            byte[] clientChallenge = new byte[8];

                                transport.hasCapability(SmbConstants.CAP_EXTENDED_SECURITY)) {
                            state = 20; /* NTLMSSP */
                            break;
                        }
    
                        request = new SmbComSessionSetupAndX( this, andx, auth );
                        response = new SmbComSessionSetupAndXResponse( andxResponse );
    

                                line = line.toUpperCase().trim();
                                if ( line.startsWith("#END_ALTERNATE") ) {
                                    break;
                                }
                            }
                        }
                        else {
                            populate(rdr, tc);
                        }

            break;
        case IMP_ERR:
            resultCodeString = "IMP_ERR";
            break;
        case RFS_ERR:
            resultCodeString = "RFS_ERR";
            break;
        case ACT_ERR:
            resultCodeString = "ACT_ERR";
            break;
        case CFT_ERR:
            resultCodeString = "CFT_ERR";
            break;
        default: