X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e4e45573151c64a0a9d423eca7b29879640b9d77..44353523d85ba44f62bad4ab7b27a14001d4b1ae:/src/common/db.cpp

diff --git a/src/common/db.cpp b/src/common/db.cpp
index da7698256d..ee2a47b16a 100644
--- a/src/common/db.cpp
+++ b/src/common/db.cpp
@@ -85,7 +85,7 @@ static wxString SQLLOGfn = SQL_LOG_FILENAME;
 // will overwrite the errors of the previously destroyed wxDb object in
 // this variable.  NOTE: This occurs during a CLOSE, not a FREEing of the
 // connection
-wxChar DBerrorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN];
+wxChar DBerrorList[DB_MAX_ERROR_HISTORY][DB_MAX_ERROR_MSG_LEN+1];
 
 
 // This type defines the return row-struct form
@@ -206,14 +206,16 @@ void wxDbConnectInf::SetDsn(const wxString &dsn)
 {
     wxASSERT(dsn.Length() < sizeof(Dsn));
 
-    wxStrcpy(Dsn,dsn);
+    wxStrncpy(Dsn, dsn, sizeof(Dsn)-1);
+    Dsn[sizeof(Dsn)-1] = 0;  // Prevent buffer overrun
 }  // wxDbConnectInf::SetDsn()
 
 
 void wxDbConnectInf::SetUserID(const wxString &uid)
 {
     wxASSERT(uid.Length() < sizeof(Uid));
-    wxStrcpy(Uid, uid);
+    wxStrncpy(Uid, uid, sizeof(Uid)-1);
+    Uid[sizeof(Uid)-1] = 0;  // Prevent buffer overrun
 }  // wxDbConnectInf::SetUserID()
 
 
@@ -221,7 +223,8 @@ void wxDbConnectInf::SetPassword(const wxString &password)
 {
     wxASSERT(password.Length() < sizeof(AuthStr));
 
-    wxStrcpy(AuthStr, password);
+    wxStrncpy(AuthStr, password, sizeof(AuthStr)-1);
+    AuthStr[sizeof(AuthStr)-1] = 0;  // Prevent buffer overrun
 }  // wxDbConnectInf::SetPassword()
 
 void wxDbConnectInf::SetConnectionStr(const wxString &connectStr)
@@ -230,7 +233,8 @@ void wxDbConnectInf::SetConnectionStr(const wxString &connectStr)
 
     useConnectionStr = wxStrlen(connectStr) > 0;
 
-    wxStrcpy(ConnectionStr, connectStr);
+    wxStrncpy(ConnectionStr, connectStr, sizeof(ConnectionStr)-1);
+    ConnectionStr[sizeof(ConnectionStr)-1] = 0;  // Prevent buffer overrun
 }  // wxDbConnectInf::SetConnectionStr()
 
 
@@ -283,14 +287,23 @@ int wxDbColFor::Format(int Nation, int dbDataType, SWORD sqlDataType,
 
     if (i_dbDataType == 0)                                        // Filter unsupported dbDataTypes
     {
-        if ((i_sqlDataType == SQL_VARCHAR) || (i_sqlDataType == SQL_LONGVARCHAR))
+        if ((i_sqlDataType == SQL_VARCHAR)
+#if wxUSE_UNICODE
+    #if defined(SQL_WCHAR)
+            || (i_sqlDataType == SQL_WCHAR) 
+    #endif
+    #if defined(SQL_WVARCHAR)
+            || (i_sqlDataType == SQL_WVARCHAR)
+    #endif
+#endif
+            || (i_sqlDataType == SQL_LONGVARCHAR))
             i_dbDataType = DB_DATA_TYPE_VARCHAR;
         if ((i_sqlDataType == SQL_C_DATE) || (i_sqlDataType == SQL_C_TIMESTAMP))
             i_dbDataType = DB_DATA_TYPE_DATE;
         if (i_sqlDataType == SQL_C_BIT)
             i_dbDataType = DB_DATA_TYPE_INTEGER;
         if (i_sqlDataType == SQL_NUMERIC)
-            i_dbDataType = DB_DATA_TYPE_VARCHAR;
+            i_dbDataType = DB_DATA_TYPE_VARCHAR;   // glt - ??? is this right?
         if (i_sqlDataType == SQL_REAL)
             i_dbDataType = DB_DATA_TYPE_FLOAT;
         if (i_sqlDataType == SQL_C_BINARY)
@@ -563,39 +576,84 @@ const wxChar *wxDb::convertUserID(const wxChar *userID, wxString &UserID)
          || Dbms() == dbmsXBASE_SEQUITER )
         UserID.Empty();
 
-    // Oracle user names may only be in uppercase, so force
-    // the name to uppercase
-    if (Dbms() == dbmsORACLE)
+    // Some databases require user names to be specified in uppercase,
+    // so force the name to uppercase
+    if ((Dbms() == dbmsORACLE) ||
+        (Dbms() == dbmsMAXDB))
         UserID = UserID.Upper();
 
     return UserID.c_str();
 }  // wxDb::convertUserID()
 
 
-bool wxDb::open(bool failOnDataTypeUnsupported)
+bool wxDb::determineDataTypes(bool failOnDataTypeUnsupported)
 {
-/*
-    If using Intersolv branded ODBC drivers, this is the place where you would substitute
-    your branded driver license information
+    size_t iIndex;
 
-    SQLSetConnectOption(hdbc, 1041, (UDWORD) wxEmptyString);
-    SQLSetConnectOption(hdbc, 1042, (UDWORD) wxEmptyString);
-*/
+    // These are the possible SQL types we check for use against the datasource we are connected
+    // to for the purpose of determining which data type to use for the basic character strings
+    // column types
+    //
+    // NOTE: The first type in this enumeration that is determined to be supported by the
+    //       datasource/driver is the one that will be used.
+    SWORD PossibleSqlCharTypes[] = {
+#if wxUSE_UNICODE && defined(SQL_WVARCHAR)
+        SQL_WVARCHAR,
+#endif
+        SQL_VARCHAR,
+#if wxUSE_UNICODE && defined(SQL_WVARCHAR)
+        SQL_WCHAR,
+#endif
+        SQL_CHAR
+    };
 
-    // Mark database as open
-    dbIsOpen = true;
+    // These are the possible SQL types we check for use against the datasource we are connected
+    // to for the purpose of determining which data type to use for the basic non-floating point
+    // column types
+    //
+    // NOTE: The first type in this enumeration that is determined to be supported by the
+    //       datasource/driver is the one that will be used.
+    SWORD PossibleSqlIntegerTypes[] = {
+        SQL_INTEGER
+    };
 
-    // Allocate a statement handle for the database connection
-    if (SQLAllocStmt(hdbc, &hstmt) != SQL_SUCCESS)
-        return(DispAllErrors(henv, hdbc));
+    // These are the possible SQL types we check for use against the datasource we are connected
+    // to for the purpose of determining which data type to use for the basic floating point number
+    // column types
+    //
+    // NOTE: The first type in this enumeration that is determined to be supported by the
+    //       datasource/driver is the one that will be used.
+    SWORD PossibleSqlFloatTypes[] = {
+        SQL_DOUBLE,
+        SQL_REAL,
+        SQL_FLOAT,
+        SQL_DECIMAL,
+        SQL_NUMERIC
+    };
 
-    // Set Connection Options
-    if (!setConnectionOptions())
-        return false;
+    // These are the possible SQL types we check for use agains the datasource we are connected
+    // to for the purpose of determining which data type to use for the date/time column types
+    //
+    // NOTE: The first type in this enumeration that is determined to be supported by the
+    //       datasource/driver is the one that will be used.
+    SWORD PossibleSqlDateTypes[] = {
+        SQL_TIMESTAMP,
+        SQL_DATE,
+#ifdef SQL_DATETIME
+        SQL_DATETIME
+#endif
+    };
+
+    // These are the possible SQL types we check for use agains the datasource we are connected
+    // to for the purpose of determining which data type to use for the BLOB column types.
+    //
+    // NOTE: The first type in this enumeration that is determined to be supported by the
+    //       datasource/driver is the one that will be used.
+    SWORD PossibleSqlBlobTypes[] = {
+        SQL_LONGVARBINARY,
+        SQL_VARBINARY
+    };
 
-    // Query the data source for inf. about itself
-    if (!getDbInfo(failOnDataTypeUnsupported))
-        return false;
 
     // Query the data source regarding data type information
 
@@ -604,7 +662,7 @@ bool wxDb::open(bool failOnDataTypeUnsupported)
     // for all of the possible SQL data types to see which ones were supported.  If
     // a type is not supported, the SQLFetch() that's called from getDataTypeInfo()
     // fails with SQL_NO_DATA_FOUND.  This is ugly because I'm sure the three SQL data
-    // types I've selected below will not alway's be what we want.  These are just
+    // types I've selected below will not always be what we want.  These are just
     // what happened to work against an Oracle 7/Intersolv combination.  The following is
     // a complete list of the results I got back against the Oracle 7 database:
     //
@@ -638,41 +696,41 @@ bool wxDb::open(bool failOnDataTypeUnsupported)
     // SQL_DOUBLE             type name = 'DOUBLE', Precision = 15
     // SQL_INTEGER            type name = 'LONG', Precision = 10
 
-    // VARCHAR = Variable length character string
-    if (!getDataTypeInfo(SQL_VARCHAR, typeInfVarchar))
-        if (!getDataTypeInfo(SQL_CHAR, typeInfVarchar))
-            return false;
-        else
-            typeInfVarchar.FsqlType = SQL_CHAR;
-    else
-        typeInfVarchar.FsqlType = SQL_VARCHAR;
+    // Query the data source for info about itself
+    if (!getDbInfo(failOnDataTypeUnsupported))
+        return false;
 
-    // Float
-    if (!getDataTypeInfo(SQL_DOUBLE,typeInfFloat))
-        if (!getDataTypeInfo(SQL_REAL,typeInfFloat))
-            if (!getDataTypeInfo(SQL_FLOAT,typeInfFloat))
-                if (!getDataTypeInfo(SQL_DECIMAL,typeInfFloat))
-                    if (!getDataTypeInfo(SQL_NUMERIC,typeInfFloat))
-                    {
-                        if (failOnDataTypeUnsupported)
-                            return false;
-                    }
-                    else
-                        typeInfFloat.FsqlType = SQL_NUMERIC;
-                else
-                    typeInfFloat.FsqlType = SQL_DECIMAL;
-            else
-                typeInfFloat.FsqlType = SQL_FLOAT;
-        else
-            typeInfFloat.FsqlType = SQL_REAL;
-    else
-        typeInfFloat.FsqlType = SQL_DOUBLE;
+    // --------------- Varchar - (Variable length character string) ---------------
+    for (iIndex = 0; iIndex < WXSIZEOF(PossibleSqlCharTypes) &&
+                     !getDataTypeInfo(PossibleSqlCharTypes[iIndex], typeInfVarchar); ++iIndex)
+    {}
 
-    // Integer
-    if (!getDataTypeInfo(SQL_INTEGER, typeInfInteger))
+    if (iIndex < WXSIZEOF(PossibleSqlCharTypes))
+        typeInfVarchar.FsqlType = PossibleSqlCharTypes[iIndex];
+    else if (failOnDataTypeUnsupported)
+        return false;
+
+    // --------------- Float ---------------
+    for (iIndex = 0; iIndex < WXSIZEOF(PossibleSqlFloatTypes) &&
+                     !getDataTypeInfo(PossibleSqlFloatTypes[iIndex], typeInfFloat); ++iIndex)
+    {}
+
+    if (iIndex < WXSIZEOF(PossibleSqlFloatTypes))
+        typeInfFloat.FsqlType = PossibleSqlFloatTypes[iIndex];
+    else if (failOnDataTypeUnsupported)
+        return false;
+
+    // --------------- Integer -------------
+    for (iIndex = 0; iIndex < WXSIZEOF(PossibleSqlIntegerTypes) &&
+                     !getDataTypeInfo(PossibleSqlIntegerTypes[iIndex], typeInfInteger); ++iIndex)
+    {}
+
+    if (iIndex < WXSIZEOF(PossibleSqlIntegerTypes))
+        typeInfInteger.FsqlType = PossibleSqlIntegerTypes[iIndex];
+    else if (failOnDataTypeUnsupported)
     {
-        // If SQL_INTEGER is not supported, use the floating point
-        // data type to store integers as well as floats
+        // If no non-floating point data types are supported, we'll
+        // use the type assigned for floats to store integers as well
         if (!getDataTypeInfo(typeInfFloat.FsqlType, typeInfInteger))
         {
             if (failOnDataTypeUnsupported)
@@ -681,47 +739,55 @@ bool wxDb::open(bool failOnDataTypeUnsupported)
         else
             typeInfInteger.FsqlType = typeInfFloat.FsqlType;
     }
-    else
-        typeInfInteger.FsqlType = SQL_INTEGER;
 
-    // Date/Time
-    if (!getDataTypeInfo(SQL_TIMESTAMP,typeInfDate))
-    {
-        if (!getDataTypeInfo(SQL_DATE,typeInfDate))
-        {
-#ifdef SQL_DATETIME
-            if (getDataTypeInfo(SQL_DATETIME,typeInfDate))
-            {
-                typeInfDate.FsqlType = SQL_TIME;
-            }
-            else
-#endif // SQL_DATETIME defined
-            {
-                if (failOnDataTypeUnsupported)
-                    return false;
-            }
-        }
-        else
-            typeInfDate.FsqlType = SQL_DATE;
-    }
-    else
-        typeInfDate.FsqlType = SQL_TIMESTAMP;
+    // --------------- Date/Time ---------------
+    for (iIndex = 0; iIndex < WXSIZEOF(PossibleSqlDateTypes) &&
+                     !getDataTypeInfo(PossibleSqlDateTypes[iIndex], typeInfDate); ++iIndex)
+    {}
 
+    if (iIndex < WXSIZEOF(PossibleSqlDateTypes))
+        typeInfDate.FsqlType = PossibleSqlDateTypes[iIndex];
+    else if (failOnDataTypeUnsupported)
+        return false;
 
-    if (!getDataTypeInfo(SQL_LONGVARBINARY, typeInfBlob))
-    {
-        if (!getDataTypeInfo(SQL_VARBINARY,typeInfBlob))
-        {
-            if (failOnDataTypeUnsupported)
-                return false;
-        }
-        else
-            typeInfBlob.FsqlType = SQL_VARBINARY;
-    }
-    else
-        typeInfBlob.FsqlType = SQL_LONGVARBINARY;
+    // --------------- BLOB ---------------
+    for (iIndex = 0; iIndex < WXSIZEOF(PossibleSqlBlobTypes) &&
+                     !getDataTypeInfo(PossibleSqlBlobTypes[iIndex], typeInfBlob); ++iIndex)
+    {}
+
+    if (iIndex < WXSIZEOF(PossibleSqlBlobTypes))
+        typeInfBlob.FsqlType = PossibleSqlBlobTypes[iIndex];
+    else if (failOnDataTypeUnsupported)
+        return false;
+
+    return true;
+}  // wxDb::determineDataTypes
 
 
+bool wxDb::open(bool failOnDataTypeUnsupported)
+{
+/*
+    If using Intersolv branded ODBC drivers, this is the place where you would substitute
+    your branded driver license information
+
+    SQLSetConnectOption(hdbc, 1041, (UDWORD) wxEmptyString);
+    SQLSetConnectOption(hdbc, 1042, (UDWORD) wxEmptyString);
+*/
+
+    // Mark database as open
+    dbIsOpen = true;
+
+    // Allocate a statement handle for the database connection
+    if (SQLAllocStmt(hdbc, &hstmt) != SQL_SUCCESS)
+        return(DispAllErrors(henv, hdbc));
+
+    // Set Connection Options
+    if (!setConnectionOptions())
+        return false;
+
+    if (!determineDataTypes(failOnDataTypeUnsupported))
+        return false;
+
 #ifdef DBDEBUG_CONSOLE
     cout << wxT("VARCHAR DATA TYPE: ") << typeInfVarchar.TypeName << endl;
     cout << wxT("INTEGER DATA TYPE: ") << typeInfInteger.TypeName << endl;
@@ -1013,8 +1079,8 @@ bool wxDb::setConnectionOptions(void)
     if (retcode != SQL_SUCCESS && retcode != SQL_SUCCESS_WITH_INFO)
         return(DispAllErrors(henv, hdbc));
 
-    retcode = SQLSetConnectOption(hdbc, SQL_AUTOCOMMIT, SQL_AUTOCOMMIT_OFF);
-    retcode = SQLSetConnectOption(hdbc, SQL_OPT_TRACE, SQL_OPT_TRACE_OFF);
+    /* retcode = */ SQLSetConnectOption(hdbc, SQL_AUTOCOMMIT, SQL_AUTOCOMMIT_OFF);
+    /* retcode = */ SQLSetConnectOption(hdbc, SQL_OPT_TRACE, SQL_OPT_TRACE_OFF);
 //  SQLSetConnectOption(hdbc, SQL_TXN_ISOLATION, SQL_TXN_READ_COMMITTED);  // No dirty reads
 
     // By default, MS Sql Server closes cursors on commit and rollback.  The following
@@ -1026,7 +1092,7 @@ bool wxDb::setConnectionOptions(void)
     {
         const long SQL_PRESERVE_CURSORS = 1204L;
         const long SQL_PC_ON = 1L;
-        retcode = SQLSetConnectOption(hdbc, SQL_PRESERVE_CURSORS, SQL_PC_ON);
+        /* retcode = */ SQLSetConnectOption(hdbc, SQL_PRESERVE_CURSORS, SQL_PC_ON);
     }
 
     // Display the connection options to verify them
@@ -1553,7 +1619,7 @@ bool wxDb::getDataTypeInfo(SWORD fSqlType, wxDbSqlTypeInfo &structSQLTypeInfo)
     {
 #ifdef DBDEBUG_CONSOLE
         if (retcode == SQL_NO_DATA_FOUND)
-            cout << wxT("SQL_NO_DATA_FOUND fetching inf. about data type.") << endl;
+            cout << wxT("SQL_NO_DATA_FOUND fetching information about data type.") << endl;
 #endif
         DispAllErrors(henv, hdbc, hstmt);
         SQLFreeStmt(hstmt, SQL_CLOSE);
@@ -1803,12 +1869,13 @@ void wxDb::logError(const wxString &errMsg, const wxString &SQLState)
     if (++pLast == DB_MAX_ERROR_HISTORY)
     {
         int i;
-        for (i = 0; i < DB_MAX_ERROR_HISTORY; i++)
+        for (i = 0; i < DB_MAX_ERROR_HISTORY-1; i++)
             wxStrcpy(errorList[i], errorList[i+1]);
         pLast--;
     }
 
-    wxStrcpy(errorList[pLast], errMsg);
+    wxStrncpy(errorList[pLast], errMsg, DB_MAX_ERROR_MSG_LEN);
+    errorList[pLast][DB_MAX_ERROR_MSG_LEN] = 0;
 
     if (SQLState.Length())
         if ((dbStatus = TranslateSqlState(SQLState)) != DB_ERR_FUNCTION_SEQUENCE_ERROR)
@@ -2163,6 +2230,102 @@ bool wxDb::ExecSql(const wxString &pSqlStmt)
 }  // wxDb::ExecSql()
 
 
+/********** wxDb::ExecSql() with column info **********/
+bool wxDb::ExecSql(const wxString &pSqlStmt, wxDbColInf** columns, short& numcols)
+{
+    //execute the statement first
+    if (!ExecSql(pSqlStmt))
+        return false;
+
+    SWORD noCols;
+    if (SQLNumResultCols(hstmt, &noCols) != SQL_SUCCESS)
+    {
+        DispAllErrors(henv, hdbc, hstmt);
+        return false;
+    }
+
+    if (noCols == 0)
+        return false;
+    else
+        numcols = noCols;
+
+    //  Get column information
+    short colNum;
+    wxChar name[DB_MAX_COLUMN_NAME_LEN+1];
+    SWORD Sword;
+    SDWORD Sdword;
+    wxDbColInf* pColInf = new wxDbColInf[noCols];
+
+    // Fill in column information (name, datatype)
+    for (colNum = 0; colNum < noCols; colNum++)
+    {
+        if (SQLColAttributes(hstmt, (UWORD)(colNum+1), SQL_COLUMN_NAME,
+            name, sizeof(name),
+            &Sword, &Sdword) != SQL_SUCCESS)
+        {
+            DispAllErrors(henv, hdbc, hstmt);
+            delete[] pColInf;
+            return false;
+        }
+
+        wxStrncpy(pColInf[colNum].colName, name, DB_MAX_COLUMN_NAME_LEN);
+        pColInf[colNum].colName[DB_MAX_COLUMN_NAME_LEN] = 0;  // Prevent buffer overrun
+
+        if (SQLColAttributes(hstmt, (UWORD)(colNum+1), SQL_COLUMN_TYPE,
+            NULL, 0, &Sword, &Sdword) != SQL_SUCCESS)
+        {
+            DispAllErrors(henv, hdbc, hstmt);
+            delete[] pColInf;
+            return false;
+        }
+
+        switch (Sdword)
+        {
+#if wxUSE_UNICODE
+    #if defined(SQL_WCHAR)
+            case SQL_WCHAR:
+    #endif
+    #if defined(SQL_WVARCHAR)
+            case SQL_WVARCHAR:
+    #endif
+#endif
+            case SQL_VARCHAR:
+            case SQL_CHAR:
+                pColInf[colNum].dbDataType = DB_DATA_TYPE_VARCHAR;
+                break;
+            case SQL_TINYINT:
+            case SQL_SMALLINT:
+            case SQL_INTEGER:
+            case SQL_BIT:
+                pColInf[colNum].dbDataType = DB_DATA_TYPE_INTEGER;
+                break;
+            case SQL_DOUBLE:
+            case SQL_DECIMAL:
+            case SQL_NUMERIC:
+            case SQL_FLOAT:
+            case SQL_REAL:
+                pColInf[colNum].dbDataType = DB_DATA_TYPE_FLOAT;
+                break;
+            case SQL_DATE:
+            case SQL_TIMESTAMP:
+                pColInf[colNum].dbDataType = DB_DATA_TYPE_DATE;
+                break;
+            case SQL_BINARY:
+                pColInf[colNum].dbDataType = DB_DATA_TYPE_BLOB;
+                break;
+#ifdef __WXDEBUG__
+            default:
+                wxString errMsg;
+                errMsg.Printf(wxT("SQL Data type %ld currently not supported by wxWidgets"), (long)Sdword);
+                wxLogDebug(errMsg,wxT("ODBC DEBUG MESSAGE"));
+#endif
+        }
+    }
+
+    *columns = pColInf;
+    return true;
+}  // wxDb::ExecSql()
+
 /********** wxDb::GetNext()  **********/
 bool wxDb::GetNext(void)
 {
@@ -2205,7 +2368,6 @@ int wxDb::GetKeyFields(const wxString &tableName, wxDbColInf* colInf, UWORD noCo
     wxChar       szPkTable[DB_MAX_TABLE_NAME_LEN+1];  /* Primary key table name */
     wxChar       szFkTable[DB_MAX_TABLE_NAME_LEN+1];  /* Foreign key table name */
     SWORD        iKeySeq;
-//    SQLSMALLINT  iKeySeq;
     wxChar       szPkCol[DB_MAX_COLUMN_NAME_LEN+1];   /* Primary key column     */
     wxChar       szFkCol[DB_MAX_COLUMN_NAME_LEN+1];   /* Foreign key column     */
     SQLRETURN    retcode;
@@ -2284,12 +2446,15 @@ int wxDb::GetKeyFields(const wxString &tableName, wxDbColInf* colInf, UWORD noCo
     }  // while
 
     tempStr.Trim();     // Get rid of any unneeded blanks
-    if (!tempStr.IsEmpty())
+    if (!tempStr.empty())
     {
         for (i=0; i<noCols; i++)
         {   // Find the Column name
             if (!wxStrcmp(colInf[i].colName, szPkCol))           // We have found the Column, store the Information
-                wxStrcpy(colInf[i].PkTableName, tempStr.c_str());  // Name of the Tables where this Primary Key is used as a Foreign Key
+            {
+                wxStrncpy(colInf[i].PkTableName, tempStr.c_str(), DB_MAX_TABLE_NAME_LEN);  // Name of the Tables where this Primary Key is used as a Foreign Key
+                colInf[i].PkTableName[DB_MAX_TABLE_NAME_LEN] = 0;  // Prevent buffer overrun
+            }
         }
     }  // if
 
@@ -2325,7 +2490,8 @@ int wxDb::GetKeyFields(const wxString &tableName, wxDbColInf* colInf, UWORD noCo
                 if (!wxStrcmp(colInf[i].colName,szFkCol))       // We have found the (Foreign Key) Column
                 {
                     colInf[i].FkCol = iKeySeq;                  // Which Foreign Key is this (first, second usw.) ?
-                    wxStrcpy(colInf[i].FkTableName,szPkTable);  // Name of the Table where this Foriegn is the Primary Key
+                    wxStrncpy(colInf[i].FkTableName, szFkTable, DB_MAX_TABLE_NAME_LEN);  // Name of the Table where this Foriegn is the Primary Key
+                    colInf[i].FkTableName[DB_MAX_TABLE_NAME_LEN] = 0;  // Prevent buffer overrun
                 } // if
             }  // for
         }  // if
@@ -2394,8 +2560,8 @@ wxDbColInf *wxDb::GetColumns(wxChar *tableName[], const wxChar *userID)
             if (!colInf)
                 break;
             // Mark the end of the array
-            wxStrcpy(colInf[noCols].tableName,wxEmptyString);
-            wxStrcpy(colInf[noCols].colName,wxEmptyString);
+            wxStrcpy(colInf[noCols].tableName, wxEmptyString);
+            wxStrcpy(colInf[noCols].colName, wxEmptyString);
             colInf[noCols].sqlDataType = 0;
         }
         // Loop through each table name
@@ -2406,6 +2572,7 @@ wxDbColInf *wxDb::GetColumns(wxChar *tableName[], const wxChar *userID)
             // Oracle and Interbase table names are uppercase only, so force
             // the name to uppercase just in case programmer forgot to do this
             if ((Dbms() == dbmsORACLE) ||
+                (Dbms() == dbmsFIREBIRD) ||
                 (Dbms() == dbmsINTERBASE))
                 TableName = TableName.Upper();
 
@@ -2413,7 +2580,7 @@ wxDbColInf *wxDb::GetColumns(wxChar *tableName[], const wxChar *userID)
 
             // MySQL, SQLServer, and Access cannot accept a user name when looking up column names, so we
             // use the call below that leaves out the user name
-            if (!UserID.IsEmpty() &&
+            if (!UserID.empty() &&
                 Dbms() != dbmsMY_SQL &&
                 Dbms() != dbmsACCESS &&
                 Dbms() != dbmsMS_SQL_SERVER)
@@ -2554,13 +2721,14 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, UWORD *numCols, const wx
             // Mark the end of the array
             wxStrcpy(colInf[noCols].tableName, wxEmptyString);
             wxStrcpy(colInf[noCols].colName, wxEmptyString);
-            colInf[noCols].sqlDataType  = 0;
+            colInf[noCols].sqlDataType = 0;
         }
 
         TableName = tableName;
         // Oracle and Interbase table names are uppercase only, so force
         // the name to uppercase just in case programmer forgot to do this
         if ((Dbms() == dbmsORACLE) ||
+            (Dbms() == dbmsFIREBIRD) ||
             (Dbms() == dbmsINTERBASE))
             TableName = TableName.Upper();
 
@@ -2568,7 +2736,7 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, UWORD *numCols, const wx
 
         // MySQL, SQLServer, and Access cannot accept a user name when looking up column names, so we
         // use the call below that leaves out the user name
-        if (!UserID.IsEmpty() &&
+        if (!UserID.empty() &&
             Dbms() != dbmsMY_SQL &&
             Dbms() != dbmsACCESS &&
             Dbms() != dbmsMS_SQL_SERVER)
@@ -2746,7 +2914,7 @@ wxDbColInf *wxDb::GetColumns(wxChar *tableName[], const wxChar *userID)
     // Mark the end of the array
     wxStrcpy(colInf[noCols].tableName, wxEmptyString);
     wxStrcpy(colInf[noCols].colName, wxEmptyString);
-    colInf[noCols].sqlDataType  = 0;
+    colInf[noCols].sqlDataType = 0;
 
     // Merge ...
     int offset = 0;
@@ -2816,6 +2984,7 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, int *numCols, const wxCh
         // Oracle and Interbase table names are uppercase only, so force
         // the name to uppercase just in case programmer forgot to do this
         if ((Dbms() == dbmsORACLE) ||
+            (Dbms() == dbmsFIREBIRD) ||
             (Dbms() == dbmsINTERBASE))
             TableName = TableName.Upper();
 
@@ -2823,7 +2992,7 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, int *numCols, const wxCh
 
         // MySQL, SQLServer, and Access cannot accept a user name when looking up column names, so we
         // use the call below that leaves out the user name
-        if (!UserID.IsEmpty() &&
+        if (!UserID.empty() &&
             Dbms() != dbmsMY_SQL &&
             Dbms() != dbmsACCESS &&
             Dbms() != dbmsMS_SQL_SERVER)
@@ -2895,14 +3064,22 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, int *numCols, const wxCh
                     // Get the intern datatype
                     switch (colInf[colNo].sqlDataType)
                     {
+#if wxUSE_UNICODE
+    #if defined(SQL_WCHAR)
+                        case SQL_WCHAR:
+    #endif
+    #if defined(SQL_WVARCHAR)
+                        case SQL_WVARCHAR:
+    #endif
+#endif
                         case SQL_VARCHAR:
                         case SQL_CHAR:
                             colInf[colNo].dbDataType = DB_DATA_TYPE_VARCHAR;
                         break;
-
                         case SQL_TINYINT:
                         case SQL_SMALLINT:
                         case SQL_INTEGER:
+                        case SQL_BIT:
                             colInf[colNo].dbDataType = DB_DATA_TYPE_INTEGER;
                             break;
                         case SQL_DOUBLE:
@@ -2913,6 +3090,7 @@ wxDbColInf *wxDb::GetColumns(const wxString &tableName, int *numCols, const wxCh
                             colInf[colNo].dbDataType = DB_DATA_TYPE_FLOAT;
                             break;
                         case SQL_DATE:
+                        case SQL_TIMESTAMP:
                             colInf[colNo].dbDataType = DB_DATA_TYPE_DATE;
                             break;
                         case SQL_BINARY:
@@ -3054,6 +3232,7 @@ int wxDb::GetColumnCount(const wxString &tableName, const wxChar *userID)
     // Oracle and Interbase table names are uppercase only, so force
     // the name to uppercase just in case programmer forgot to do this
     if ((Dbms() == dbmsORACLE) ||
+        (Dbms() == dbmsFIREBIRD) ||
         (Dbms() == dbmsINTERBASE))
         TableName = TableName.Upper();
 
@@ -3061,7 +3240,7 @@ int wxDb::GetColumnCount(const wxString &tableName, const wxChar *userID)
 
     // MySQL, SQLServer, and Access cannot accept a user name when looking up column names, so we
     // use the call below that leaves out the user name
-    if (!UserID.IsEmpty() &&
+    if (!UserID.empty() &&
         Dbms() != dbmsMY_SQL &&
         Dbms() != dbmsACCESS &&
         Dbms() != dbmsMS_SQL_SERVER)
@@ -3154,7 +3333,7 @@ wxDbInf *wxDb::GetCatalog(const wxChar *userID)
         SQLFreeStmt(hstmt, SQL_CLOSE);   // Close if Open
         tblNameSave.Empty();
 
-        if (!UserID.IsEmpty() &&
+        if (!UserID.empty() &&
             Dbms() != dbmsMY_SQL &&
             Dbms() != dbmsACCESS &&
             Dbms() != dbmsMS_SQL_SERVER)
@@ -3259,9 +3438,10 @@ bool wxDb::Catalog(const wxChar *userID, const wxString &fileName)
     wxString UserID;
     convertUserID(userID,UserID);
 
-    if (!UserID.IsEmpty() &&
+    if (!UserID.empty() &&
         Dbms() != dbmsMY_SQL &&
         Dbms() != dbmsACCESS &&
+        Dbms() != dbmsFIREBIRD &&
         Dbms() != dbmsINTERBASE &&
         Dbms() != dbmsMS_SQL_SERVER)
     {
@@ -3382,6 +3562,7 @@ bool wxDb::TableExists(const wxString &tableName, const wxChar *userID, const wx
     // Oracle and Interbase table names are uppercase only, so force
     // the name to uppercase just in case programmer forgot to do this
     if ((Dbms() == dbmsORACLE) ||
+        (Dbms() == dbmsFIREBIRD) ||
         (Dbms() == dbmsINTERBASE))
         TableName = TableName.Upper();
 
@@ -3390,11 +3571,12 @@ bool wxDb::TableExists(const wxString &tableName, const wxChar *userID, const wx
 
     // Some databases cannot accept a user name when looking up table names,
     // so we use the call below that leaves out the user name
-    if (!UserID.IsEmpty() &&
+    if (!UserID.empty() &&
         Dbms() != dbmsMY_SQL &&
         Dbms() != dbmsACCESS &&
         Dbms() != dbmsMS_SQL_SERVER &&
         Dbms() != dbmsDB2 &&
+        Dbms() != dbmsFIREBIRD &&
         Dbms() != dbmsINTERBASE &&
         Dbms() != dbmsPERVASIVE_SQL)
     {
@@ -3453,6 +3635,7 @@ bool wxDb::TablePrivileges(const wxString &tableName, const wxString &priv, cons
     // Oracle and Interbase table names are uppercase only, so force
     // the name to uppercase just in case programmer forgot to do this
     if ((Dbms() == dbmsORACLE) ||
+        (Dbms() == dbmsFIREBIRD) ||
         (Dbms() == dbmsINTERBASE))
         TableName = TableName.Upper();
 
@@ -3460,7 +3643,7 @@ bool wxDb::TablePrivileges(const wxString &tableName, const wxString &priv, cons
 
     // Some databases cannot accept a user name when looking up table names,
     // so we use the call below that leaves out the user name
-    if (!Schema.IsEmpty() &&
+    if (!Schema.empty() &&
         Dbms() != dbmsMY_SQL &&
         Dbms() != dbmsACCESS &&
         Dbms() != dbmsMS_SQL_SERVER)
@@ -3587,7 +3770,7 @@ bool wxDb::SetSqlLogging(wxDbSqlLogState state, const wxString &filename, bool a
     {
         if (fpSqlLog == 0)
         {
-            fpSqlLog = wxFopen(filename, (append ? wxT("at") : wxT("wt")));
+            fpSqlLog = wxFopen(filename.c_str(), (append ? wxT("at") : wxT("wt")));
             if (fpSqlLog == NULL)
                 return false;
         }
@@ -3697,8 +3880,16 @@ wxDBMS wxDb::Dbms(void)
     if (dbmsType != dbmsUNIDENTIFIED)
         return(dbmsType);
 
+#ifdef DBDEBUG_CONSOLE
+               // When run in console mode, use standard out to display errors.
+               cout << "Database connecting to: " << dbInf.dbmsName << endl;
+#endif  // DBDEBUG_CONSOLE
+
+    wxLogDebug(wxT("Database connecting to: "));
+    wxLogDebug(dbInf.dbmsName);
+
     wxChar baseName[25+1];
-    wxStrncpy(baseName,dbInf.dbmsName,25);
+    wxStrncpy(baseName, dbInf.dbmsName, 25);
     baseName[25] = 0;
 
     // RGG 20001025 : add support for Interbase
@@ -3741,6 +3932,9 @@ wxDBMS wxDb::Dbms(void)
     if (!wxStricmp(baseName,wxT("Informix")))
         return((wxDBMS)(dbmsType = dbmsINFORMIX));
 
+    if (!wxStricmp(baseName,wxT("Firebird")))
+        return((wxDBMS)(dbmsType = dbmsFIREBIRD));
+
     baseName[6] = 0;
     if (!wxStricmp(baseName,wxT("Oracle")))
         return((wxDBMS)(dbmsType = dbmsORACLE));
@@ -3756,6 +3950,8 @@ wxDBMS wxDb::Dbms(void)
         return((wxDBMS)(dbmsType = dbmsXBASE_SEQUITER));
     if (!wxStricmp(baseName,wxT("MySQL")))
         return((wxDBMS)(dbmsType = dbmsMY_SQL));
+    if (!wxStricmp(baseName,wxT("MaxDB")))
+        return((wxDBMS)(dbmsType = dbmsMAXDB));
 
     baseName[3] = 0;
     if (!wxStricmp(baseName,wxT("DB2")))
@@ -4076,11 +4272,11 @@ const wxChar WXDLLIMPEXP_ODBC *wxDbLogExtendedErrorMsg(const wxChar *userText,
         if (pDb->errorList[i])
         {
             msg.Append(pDb->errorList[i]);
-            if (wxStrcmp(pDb->errorList[i],wxT("")) != 0)
+            if (wxStrcmp(pDb->errorList[i], wxEmptyString) != 0)
                 msg.Append(wxT("\n"));
             // Clear the errmsg buffer so the next error will not
             // end up showing the previous error that have occurred
-            wxStrcpy(pDb->errorList[i],wxT(""));
+            wxStrcpy(pDb->errorList[i], wxEmptyString);
         }
     }
     msg += wxT("\n");
@@ -4204,9 +4400,11 @@ bool wxDbGetDataSource(HENV henv, wxChar *Dsn, SWORD DsnMaxLength, wxChar *DsDes
  */
 {
     SWORD cb1,cb2;
+    SWORD lengthDsn = (SWORD)(DsnMaxLength*sizeof(wxChar));
+    SWORD lengthDsDesc = (SWORD)(DsDescMaxLength*sizeof(wxChar));
 
-    if (SQLDataSources(henv, direction, (SQLTCHAR FAR *) Dsn, DsnMaxLength*sizeof(wxChar), &cb1,
-                             (SQLTCHAR FAR *) DsDesc, DsDescMaxLength*sizeof(wxChar), &cb2) == SQL_SUCCESS)
+    if (SQLDataSources(henv, direction, (SQLTCHAR FAR *) Dsn, lengthDsn, &cb1,
+                       (SQLTCHAR FAR *) DsDesc, lengthDsDesc, &cb2) == SQL_SUCCESS)
         return true;
     else
         return false;