internal SqlError ProcessError(byte token, TdsParserStateObject stateObj)
{
int num2;
int infoNumber = stateObj.ReadInt32();
byte errorState = stateObj.ReadByte();
byte errorClass = stateObj.ReadByte();
int length = stateObj.ReadUInt16();
string errorMessage = stateObj.ReadString(length);
length = stateObj.ReadByte();
if (length != 0)
{
stateObj.ReadString(length);
}
length = stateObj.ReadByte();
string procedure = stateObj.ReadString(length);
if (this._isYukon)
{
num2 = stateObj.ReadInt32();
}
else
{
num2 = stateObj.ReadUInt16();
if ((this._state == TdsParserState.OpenNotLoggedIn) && (stateObj.PeekByte() == 0))
{
num2 = (num2 << 0x10) + stateObj.ReadUInt16();
}
}
return new SqlError(infoNumber, errorState, errorClass, this._server, errorMessage, procedure, num2);
}
internal bool Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
{
if ((TdsParserState.Broken == this.State) || (this.State == TdsParserState.Closed))
{
return true;
}
bool flag = false;
Label_0016:
if (stateObj._internalTimeout)
{
runBehavior = RunBehavior.Attention;
}
if ((TdsParserState.Broken == this.State) || (this.State == TdsParserState.Closed))
{
goto Label_0705;
}
byte token = stateObj.ReadByte();
if ((((((token != 170) && (token != 0xab)) && ((token != 0xad) && (token != 0xe3))) && (((token != 0xac) && (token != 0x79)) && ((token != 160) && (token != 0xa1)))) && ((((token != 0x81) && (token != 0x88)) && ((token != 0xa4) && (token != 0xa5))) && (((token != 0xa9) && (token != 0xd3)) && ((token != 0xd1) && (token != 0xfd))))) && ((((token != 0xfe) && (token != 0xff)) && ((token != 0x39) && (token != 0xed))) && (((token != 0xae) && (token != 0x7c)) && ((token != 120) && (token != 0xed)))))
{
this._state = TdsParserState.Broken;
this._connHandler.BreakConnection();
Bid.Trace("<sc.TdsParser.Run|ERR> Potential multi-threaded misuse of connection, unexpected TDS token found %d#\n", this.ObjectID);
throw SQL.ParsingError();
}
int tokenLength = this.GetTokenLength(token, stateObj);
switch (token)
{
case 0xa4:
if (dataStream == null)
{
this.SkipBytes(tokenLength, stateObj);
}
else
{
dataStream.TableNames = this.ProcessTableName(tokenLength, stateObj);
}
goto Label_06D5;
case 0xa5:
if (dataStream == null)
{
this.SkipBytes(tokenLength, stateObj);
}
else
{
_SqlMetaDataSet metaData = this.ProcessColInfo(dataStream.MetaData, dataStream, stateObj);
dataStream.SetMetaData(metaData, false);
dataStream.BrowseModeInfoConsumed = true;
}
goto Label_06D5;
case 0xa9:
this.SkipBytes(tokenLength, stateObj);
goto Label_06D5;
case 170:
case 0xab:
{
if (token == 170)
{
stateObj._errorTokenReceived = true;
}
SqlError error = this.ProcessError(token, stateObj);
if (RunBehavior.Clean == (RunBehavior.Clean & runBehavior))
{
if (error.Class >= 20)
{
this.Errors.Add(error);
}
}
else
{
SqlConnection connection = null;
if (this._connHandler != null)
{
connection = this._connHandler.Connection;
}
if (((connection != null) && connection.FireInfoMessageEventOnUserErrors) && (error.Class <= 0x10))
{
this.FireInfoMessageEvent(connection, stateObj, error);
}
else if (error.Class < 11)
{
this.Warnings.Add(error);
}
else if (error.Class < 20)
{
this.Errors.Add(error);
if ((dataStream != null) && !dataStream.IsInitialized)
{
runBehavior = RunBehavior.UntilDone;
}
}
else
{
this.Errors.Add(error);
runBehavior = RunBehavior.UntilDone;
}
}
goto Label_06D5;
}
case 0xac:
{
SqlReturnValue rec = this.ProcessReturnValue(tokenLength, stateObj);
if (cmdHandler != null)
{
cmdHandler.OnReturnValue(rec);
}
goto Label_06D5;
}
case 0xad:
{
SqlLoginAck ack = this.ProcessLoginAck(stateObj);
this._connHandler.OnLoginAck(ack);
goto Label_06D5;
}
case 0x88:
{
if (stateObj._cleanupAltMetaDataSetArray == null)
{
stateObj._cleanupAltMetaDataSetArray = new _SqlMetaDataSetCollection();
}
_SqlMetaDataSet altMetaDataSet = this.ProcessAltMetaData(tokenLength, stateObj);
stateObj._cleanupAltMetaDataSetArray.SetAltMetaData(altMetaDataSet);
if (dataStream != null)
{
dataStream.SetAltMetaDataSet(altMetaDataSet, 0x88 != stateObj.PeekByte());
}
goto Label_06D5;
}
case 0x79:
{
int status = stateObj.ReadInt32();
if (cmdHandler != null)
{
cmdHandler.OnReturnStatus(status);
}
goto Label_06D5;
}
case 0x81:
if (tokenLength != 0xffff)
{
stateObj._cleanupMetaData = this.ProcessMetaData(tokenLength, stateObj);
}
else if (cmdHandler != null)
{
stateObj._cleanupMetaData = cmdHandler.MetaData;
}
if (dataStream != null)
{
byte num5 = stateObj.PeekByte();
dataStream.SetMetaData(stateObj._cleanupMetaData, (0xa4 == num5) || (0xa5 == num5));
}
else if (bulkCopyHandler != null)
{
bulkCopyHandler.SetMetaData(stateObj._cleanupMetaData);
}
goto Label_06D5;
case 0xd1:
if (bulkCopyHandler == null)
{
if (RunBehavior.ReturnImmediately != (RunBehavior.ReturnImmediately & runBehavior))
{
this.SkipRow(stateObj._cleanupMetaData, stateObj);
}
break;
}
this.ProcessRow(stateObj._cleanupMetaData, bulkCopyHandler.CreateRowBuffer(), bulkCopyHandler.CreateIndexMap(), stateObj);
break;
case 0xd3:
if (RunBehavior.ReturnImmediately != (RunBehavior.ReturnImmediately & runBehavior))
{
int id = stateObj.ReadUInt16();
this.SkipRow(stateObj._cleanupAltMetaDataSetArray.GetAltMetaData(id), stateObj);
}
flag = true;
goto Label_06D5;
case 0xe3:
{
SqlEnvChange[] changeArray = this.ProcessEnvChange(tokenLength, stateObj);
for (int i = 0; i < changeArray.Length; i++)
{
if ((changeArray[i] == null) || this.Connection.IgnoreEnvChange)
{
continue;
}
switch (changeArray[i].type)
{
case 8:
case 11:
this._currentTransaction = this._pendingTransaction;
this._pendingTransaction = null;
if (this._currentTransaction == null)
{
break;
}
this._currentTransaction.TransactionId = changeArray[i].newLongValue;
goto Label_04B4;
case 9:
case 12:
case 0x11:
this._retainedTransactionId = 0L;
goto Label_04F7;
case 10:
goto Label_04F7;
default:
goto Label_0577;
}
TransactionType type = (8 == changeArray[i].type) ? TransactionType.LocalFromTSQL : TransactionType.Distributed;
this._currentTransaction = new SqlInternalTransaction(this._connHandler, type, null, changeArray[i].newLongValue);
Label_04B4:
if ((this._statistics != null) && !this._statisticsIsInTransaction)
{
this._statistics.SafeIncrement(ref this._statistics._transactions);
}
this._statisticsIsInTransaction = true;
this._retainedTransactionId = 0L;
continue;
Label_04F7:
if (this._currentTransaction != null)
{
if (9 == changeArray[i].type)
{
this._currentTransaction.Completed(TransactionState.Committed);
}
else if (10 == changeArray[i].type)
{
if (this._currentTransaction.IsDistributed && this._currentTransaction.IsActive)
{
this._retainedTransactionId = changeArray[i].oldLongValue;
}
this._currentTransaction.Completed(TransactionState.Aborted);
}
else
{
this._currentTransaction.Completed(TransactionState.Unknown);
}
this._currentTransaction = null;
}
this._statisticsIsInTransaction = false;
continue;
Label_0577:
this._connHandler.OnEnvChange(changeArray[i]);
}
goto Label_06D5;
}
case 0xfd:
case 0xfe:
case 0xff:
this.ProcessDone(cmdHandler, dataStream, ref runBehavior, stateObj);
if ((token == 0xfe) && (cmdHandler != null))
{
cmdHandler.OnDoneProc();
}
goto Label_06D5;
case 0xed:
this.ProcessSSPI(tokenLength);
goto Label_06D5;
default:
goto Label_06D5;
}
if (this._statistics != null)
{
this._statistics.WaitForDoneAfterRow = true;
}
flag = true;
Label_06D5:
if ((stateObj._pendingData && (RunBehavior.ReturnImmediately != (RunBehavior.ReturnImmediately & runBehavior))) || ((!stateObj._pendingData && stateObj._attentionSent) && !stateObj._attentionReceived))
{
goto Label_0016;
}
Label_0705:
if (!stateObj._pendingData && (this.CurrentTransaction != null))
{
this.CurrentTransaction.Activate();
}
if (stateObj._attentionSent && stateObj._attentionReceived)
{
stateObj._attentionSent = false;
stateObj._attentionReceived = false;
if ((RunBehavior.Clean != (RunBehavior.Clean & runBehavior)) && !stateObj._internalTimeout)
{
this.Errors.Add(new SqlError(0, 0, 11, this._server, SQLMessage.OperationCancelled(), "", 0));
}
}
if ((this._errors != null) || (this._warnings != null))
{
this.ThrowExceptionAndWarning();
}
return flag;
}
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();
}
}
