private SqlEnvChange[] ProcessEnvChange(int tokenLength, TdsParserStateObject stateObj)
        {
            int num4 = 0;
            int index = 0;
            SqlEnvChange[] changeArray = new SqlEnvChange[3];
            while (tokenLength > num4)
            {
                int num3;
                ushort num5;
                if (index >= changeArray.Length)
                {
                    SqlEnvChange[] changeArray2 = new SqlEnvChange[changeArray.Length + 3];
                    for (int i = 0; i < changeArray.Length; i++)
                    {
                        changeArray2[i] = changeArray[i];
                    }
                    changeArray = changeArray2;
                }
                SqlEnvChange env = new SqlEnvChange {
                    type = stateObj.ReadByte()
                };
                changeArray[index] = env;
                index++;
                switch (env.type)
                {
                    case 1:
                    case 2:
                        this.ReadTwoStringFields(env, stateObj);
                        goto Label_03E0;

                    case 3:
                        this.ReadTwoStringFields(env, stateObj);
                        if (!(env.newValue == "iso_1"))
                        {
                            break;
                        }
                        this._defaultCodePage = 0x4e4;
                        this._defaultEncoding = Encoding.GetEncoding(this._defaultCodePage);
                        goto Label_03E0;

                    case 4:
                    {
                        this.ReadTwoStringFields(env, stateObj);
                        int size = int.Parse(env.newValue, NumberStyles.Integer, CultureInfo.InvariantCulture);
                        if (this._physicalStateObj.SetPacketSize(size))
                        {
                            this._physicalStateObj._sniPacket.Dispose();
                            uint qInfo = (uint) size;
                            SNINativeMethodWrapper.SNISetInfo(this._physicalStateObj.Handle, SNINativeMethodWrapper.QTypes.SNI_QUERY_CONN_BUFSIZE, ref qInfo);
                            this._physicalStateObj._sniPacket = new SNIPacket(this._physicalStateObj.Handle);
                        }
                        goto Label_03E0;
                    }
                    case 5:
                        this.ReadTwoStringFields(env, stateObj);
                        this._defaultLCID = int.Parse(env.newValue, NumberStyles.Integer, CultureInfo.InvariantCulture);
                        goto Label_03E0;

                    case 6:
                        this.ReadTwoStringFields(env, stateObj);
                        goto Label_03E0;

                    case 7:
                        env.newLength = stateObj.ReadByte();
                        if (env.newLength == 5)
                        {
                            env.newCollation = this.ProcessCollation(stateObj);
                            this._defaultCollation = env.newCollation;
                            int codePage = this.GetCodePage(env.newCollation, stateObj);
                            if (codePage != this._defaultCodePage)
                            {
                                this._defaultCodePage = codePage;
                                this._defaultEncoding = Encoding.GetEncoding(this._defaultCodePage);
                            }
                            this._defaultLCID = env.newCollation.LCID;
                        }
                        env.oldLength = stateObj.ReadByte();
                        if (env.oldLength == 5)
                        {
                            env.oldCollation = this.ProcessCollation(stateObj);
                        }
                        env.length = (3 + env.newLength) + env.oldLength;
                        goto Label_03E0;

                    case 8:
                    case 9:
                    case 10:
                    case 11:
                    case 12:
                    case 0x11:
                        env.newLength = stateObj.ReadByte();
                        if (env.newLength <= 0)
                        {
                            goto Label_02B0;
                        }
                        env.newLongValue = stateObj.ReadInt64();
                        goto Label_02B8;

                    case 13:
                        this.ReadTwoStringFields(env, stateObj);
                        goto Label_03E0;

                    case 15:
                        env.newLength = stateObj.ReadInt32();
                        env.newBinValue = new byte[env.newLength];
                        stateObj.ReadByteArray(env.newBinValue, 0, env.newLength);
                        env.oldLength = stateObj.ReadByte();
                        env.length = 5 + env.newLength;
                        goto Label_03E0;

                    case 0x10:
                    case 0x12:
                        this.ReadTwoBinaryFields(env, stateObj);
                        goto Label_03E0;

                    case 0x13:
                        this.ReadTwoStringFields(env, stateObj);
                        goto Label_03E0;

                    case 20:
                    {
                        env.newLength = stateObj.ReadUInt16();
                        byte protocol = stateObj.ReadByte();
                        ushort port = stateObj.ReadUInt16();
                        ushort length = stateObj.ReadUInt16();
                        string servername = stateObj.ReadString(length);
                        env.newRoutingInfo = new RoutingInfo(protocol, port, servername);
                        num5 = stateObj.ReadUInt16();
                        num3 = 0;
                        goto Label_03C9;
                    }
                    default:
                        goto Label_03E0;
                }
                string s = env.newValue.Substring(2);
                this._defaultCodePage = int.Parse(s, NumberStyles.Integer, CultureInfo.InvariantCulture);
                this._defaultEncoding = Encoding.GetEncoding(this._defaultCodePage);
                goto Label_03E0;
            Label_02B0:
                env.newLongValue = 0L;
            Label_02B8:
                env.oldLength = stateObj.ReadByte();
                if (env.oldLength > 0)
                {
                    env.oldLongValue = stateObj.ReadInt64();
                }
                else
                {
                    env.oldLongValue = 0L;
                }
                env.length = (3 + env.newLength) + env.oldLength;
                goto Label_03E0;
            Label_03BC:
                stateObj.ReadByte();
                num3++;
            Label_03C9:
                if (num3 < num5)
                {
                    goto Label_03BC;
                }
                env.length = (env.newLength + num5) + 5;
            Label_03E0:
                num4 += env.length;
            }
            return changeArray;
        }
        internal void ReadSqlValueInternal(SqlBuffer value, byte tdsType, int typeId, int length, TdsParserStateObject stateObj)
        {
            int num4;
            switch (tdsType)
            {
                case 0x7f:
                    goto Label_011A;

                case 0xa5:
                case 0xad:
                case 0x22:
                case 0x25:
                case 0x2d:
                {
                    byte[] buff = new byte[length];
                    stateObj.ReadByteArray(buff, 0, length);
                    value.SqlBinary = new SqlBinary(buff, true);
                    return;
                }
                case 0x6d:
                    if (length != 4)
                    {
                        goto Label_013B;
                    }
                    goto Label_012D;

                case 110:
                    if (length == 4)
                    {
                        goto Label_0173;
                    }
                    goto Label_014E;

                case 0x6f:
                    if (length != 4)
                    {
                        goto Label_01A2;
                    }
                    goto Label_0187;

                case 0x7a:
                    goto Label_0173;

                case 0x62:
                    this.ReadSqlVariant(value, length, stateObj);
                    return;

                case 0x68:
                case 50:
                    value.Boolean = stateObj.ReadByte() != 0;
                    return;

                case 0x23:
                case 0x2e:
                case 0x2f:
                case 0x31:
                case 0x33:
                case 0x35:
                case 0x36:
                case 0x37:
                case 0x39:
                    return;

                case 0x24:
                {
                    byte[] buffer2 = new byte[length];
                    stateObj.ReadByteArray(buffer2, 0, length);
                    value.SqlGuid = new SqlGuid(buffer2, true);
                    return;
                }
                case 0x26:
                    if (length == 1)
                    {
                        break;
                    }
                    if (length == 2)
                    {
                        goto Label_00FE;
                    }
                    if (length != 4)
                    {
                        goto Label_011A;
                    }
                    goto Label_010C;

                case 0x30:
                    break;

                case 0x34:
                    goto Label_00FE;

                case 0x38:
                    goto Label_010C;

                case 0x3a:
                    goto Label_0187;

                case 0x3b:
                    goto Label_012D;

                case 60:
                    goto Label_014E;

                case 0x3d:
                    goto Label_01A2;

                case 0x3e:
                    goto Label_013B;

                default:
                    return;
            }
            value.Byte = stateObj.ReadByte();
            return;
        Label_00FE:
            value.Int16 = stateObj.ReadInt16();
            return;
        Label_010C:
            value.Int32 = stateObj.ReadInt32();
            return;
        Label_011A:
            value.Int64 = stateObj.ReadInt64();
            return;
        Label_012D:
            value.Single = stateObj.ReadSingle();
            return;
        Label_013B:
            value.Double = stateObj.ReadDouble();
            return;
        Label_014E:
            num4 = stateObj.ReadInt32();
            uint num3 = stateObj.ReadUInt32();
            long num2 = (num4 << 0x20) + num3;
            value.SetToMoney(num2);
            return;
        Label_0173:
            value.SetToMoney((long) stateObj.ReadInt32());
            return;
        Label_0187:
            value.SetToDateTime(stateObj.ReadUInt16(), stateObj.ReadUInt16() * SqlDateTime.SQLTicksPerMinute);
            return;
        Label_01A2:
            value.SetToDateTime(stateObj.ReadInt32(), (int) stateObj.ReadUInt32());
        }
 private void ProcessDone(SqlCommand cmd, SqlDataReader reader, ref RunBehavior run, TdsParserStateObject stateObj)
 {
     int num2;
     ushort status = stateObj.ReadUInt16();
     ushort curCmd = stateObj.ReadUInt16();
     if (this._isYukon)
     {
         num2 = (int) stateObj.ReadInt64();
     }
     else
     {
         num2 = stateObj.ReadInt32();
         if (((this._state == TdsParserState.OpenNotLoggedIn) && (stateObj._inBytesRead > stateObj._inBytesUsed)) && (stateObj.PeekByte() == 0))
         {
             num2 = stateObj.ReadInt32();
         }
     }
     if (0x20 == (status & 0x20))
     {
         stateObj._attentionReceived = true;
     }
     if ((cmd != null) && (0x10 == (status & 0x10)))
     {
         if (curCmd != 0xc1)
         {
             cmd.InternalRecordsAffected = num2;
         }
         if (stateObj._receivedColMetaData || (curCmd != 0xc1))
         {
             cmd.OnStatementCompleted(num2);
         }
     }
     stateObj._receivedColMetaData = false;
     if (((2 == (2 & status)) && (this._errors == null)) && (!stateObj._errorTokenReceived && (RunBehavior.Clean != (RunBehavior.Clean & run))))
     {
         this.Errors.Add(new SqlError(0, 0, 11, this._server, SQLMessage.SevereError(), "", 0));
         if ((reader != null) && !reader.IsInitialized)
         {
             run = RunBehavior.UntilDone;
         }
     }
     if ((0x100 == (0x100 & status)) && (RunBehavior.Clean != (RunBehavior.Clean & run)))
     {
         this.Errors.Add(new SqlError(0, 0, 20, this._server, SQLMessage.SevereError(), "", 0));
         if ((reader != null) && !reader.IsInitialized)
         {
             run = RunBehavior.UntilDone;
         }
     }
     this.ProcessSqlStatistics(curCmd, status, num2);
     if (1 != (status & 1))
     {
         stateObj._errorTokenReceived = false;
         if (stateObj._inBytesUsed >= stateObj._inBytesRead)
         {
             stateObj._pendingData = false;
         }
     }
     if (!stateObj._pendingData && stateObj._hasOpenResult)
     {
         stateObj.DecrementOpenResultCount();
     }
 }