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SQLSetConnectAttr.c

/*********************************************************************
 *
 * This is based on code created by Peter Harvey,
 * (pharvey@codebydesign.com).
 *
 * Modified and extended by Nick Gorham
 * (nick@easysoft.com).
 *
 * Any bugs or problems should be considered the fault of Nick and not
 * Peter.
 *
 * copyright (c) 1999 Nick Gorham
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 **********************************************************************
 *
 * $Id: SQLSetConnectAttr.c,v 1.15 2005/03/01 15:50:50 lurcher Exp $
 *
 * $Log: SQLSetConnectAttr.c,v $
 * Revision 1.15  2005/03/01 15:50:50  lurcher
 * Add Eric's SQLSetConnectAttr patch
 *
 * Revision 1.14  2004/06/21 10:01:11  lurcher
 *
 * Fix a couple of 64 bit issues
 *
 * Revision 1.13  2003/10/30 18:20:46  lurcher
 *
 * Fix broken thread protection
 * Remove SQLNumResultCols after execute, lease S4/S% to driver
 * Fix string overrun in SQLDriverConnect
 * Add initial support for Interix
 *
 * Revision 1.12  2003/03/05 09:48:44  lurcher
 *
 * Add some 64 bit fixes
 *
 * Revision 1.11  2003/02/27 12:19:39  lurcher
 *
 * Add the A functions as well as the W
 *
 * Revision 1.10  2002/12/05 17:44:31  lurcher
 *
 * Display unknown return values in return logging
 *
 * Revision 1.9  2002/07/24 08:49:52  lurcher
 *
 * Alter UNICODE support to use iconv for UNICODE-ANSI conversion
 *
 * Revision 1.8  2002/07/16 13:08:18  lurcher
 *
 * Filter attribute values from SQLSetStmtAttr to SQLSetStmtOption to fit
 * within ODBC 2
 * Make DSN's double clickable in ODBCConfig
 *
 * Revision 1.7  2002/07/04 17:27:56  lurcher
 *
 * Small bug fixes
 *
 * Revision 1.5  2002/01/30 12:20:02  lurcher
 *
 * Add MyODBC 3 driver source
 *
 * Revision 1.4  2002/01/10 11:17:20  lurcher
 *
 * Allow SQL_ATTR_LOGIN_TIMEOUT to be set when connected to mirror what the
 * MS DM does
 *
 * Revision 1.3  2001/12/13 13:00:32  lurcher
 *
 * Remove most if not all warnings on 64 bit platforms
 * Add support for new MS 3.52 64 bit changes
 * Add override to disable the stopping of tracing
 * Add MAX_ROWS support in postgres driver
 *
 * Revision 1.2  2001/11/14 12:33:20  lurcher
 *
 * Remove the comments around the tracing code
 *
 * Revision 1.1.1.1  2001/10/17 16:40:06  lurcher
 *
 * First upload to SourceForge
 *
 * Revision 1.12  2001/09/27 17:05:48  nick
 *
 * Assorted fixes and tweeks
 *
 * Revision 1.11  2001/08/08 17:05:17  nick
 *
 * Add support for attribute setting in the ini files
 *
 * Revision 1.10  2001/08/03 15:19:00  nick
 *
 * Add changes to set values before connect
 *
 * Revision 1.9  2001/07/03 09:30:41  nick
 *
 * Add ability to alter size of displayed message in the log
 *
 * Revision 1.8  2001/04/25 14:29:36  nick
 *
 * remove comment
 *
 * Revision 1.7  2001/04/23 13:58:43  nick
 *
 * Assorted tweeks to text driver to get it to work with StarOffice
 *
 * Revision 1.6  2001/04/20 13:58:13  nick
 *
 * Add txt driver
 *
 * Revision 1.5  2001/04/12 17:43:36  nick
 *
 * Change logging and added autotest to odbctest
 *
 * Revision 1.4  2001/02/06 18:43:38  nick
 *
 * Fix problem with SQLSetConnectAttr.c looking for UNICODE versions in
 * ansi side of call
 *
 * Revision 1.3  2000/12/31 20:30:54  nick
 *
 * Add UNICODE support
 *
 * Revision 1.2  2000/11/14 10:15:27  nick
 *
 * Add test for localtime_r
 *
 * Revision 1.1.1.1  2000/09/04 16:42:52  nick
 * Imported Sources
 *
 * Revision 1.11  2000/06/20 13:30:09  ngorham
 *
 * Fix problems when using bookmarks
 *
 * Revision 1.10  2000/05/21 21:49:19  ngorham
 *
 * Assorted fixes
 *
 * Revision 1.9  1999/11/13 23:41:00  ngorham
 *
 * Alter the way DM logging works
 * Upgrade the Postgres driver to 6.4.6
 *
 * Revision 1.8  1999/11/10 03:51:34  ngorham
 *
 * Update the error reporting in the DM to enable ODBC 3 and 2 calls to
 * work at the same time
 *
 * Revision 1.7  1999/10/24 23:54:18  ngorham
 *
 * First part of the changes to the error reporting
 *
 * Revision 1.6  1999/09/21 22:34:25  ngorham
 *
 * Improve performance by removing unneeded logging calls when logging is
 * disabled
 *
 * Revision 1.5  1999/09/19 22:24:34  ngorham
 *
 * Added support for the cursor library
 *
 * Revision 1.4  1999/07/10 21:10:17  ngorham
 *
 * Adjust error sqlstate from driver manager, depending on requested
 * version (ODBC2/3)
 *
 * Revision 1.3  1999/07/04 21:05:08  ngorham
 *
 * Add LGPL Headers to code
 *
 * Revision 1.2  1999/06/30 23:56:55  ngorham
 *
 * Add initial thread safety code
 *
 * Revision 1.1.1.1  1999/05/29 13:41:08  sShandyb
 * first go at it
 *
 * Revision 1.1.1.1  1999/05/27 18:23:18  pharvey
 * Imported sources
 *
 * Revision 1.2  1999/05/09 23:27:11  nick
 * All the API done now
 *
 * Revision 1.1  1999/04/25 23:06:11  nick
 * Initial revision
 *
 *
 **********************************************************************/

#include "drivermanager.h"

static char const rcsid[]= "$RCSfile: SQLSetConnectAttr.c,v $ $Revision: 1.15 $";

SQLRETURN SQLSetConnectAttrA( SQLHDBC connection_handle,
           SQLINTEGER attribute,
           SQLPOINTER value,
           SQLINTEGER string_length )
{
    return SQLSetConnectAttr( connection_handle,
           attribute,
           value,
           string_length );
}

SQLRETURN SQLSetConnectAttr( SQLHDBC connection_handle,
           SQLINTEGER attribute,
           SQLPOINTER value,
           SQLINTEGER string_length )
{
    DMHDBC connection = (DMHDBC)connection_handle;
    SQLRETURN ret;
    SQLCHAR s1[ 100 + LOG_MESSAGE_LEN ];

    /*
     * doesn't require a handle
     */
    if ( attribute == SQL_ATTR_TRACE )
    {
        if ((SQLLEN) value == SQL_OPT_TRACE_OFF )
        {
            char force_string[ 30 ];

            SQLGetPrivateProfileString( "ODBC", "ForceTrace", "0",
                        force_string, sizeof( force_string ), 
                "ODBCINST.INI" );

            if ( force_string[ 0 ] == '1' ||
                toupper( force_string[ 0 ] ) == 'Y' ||
                ( toupper( force_string[ 0 ] ) == 'O' &&
                    toupper( force_string[ 1 ] ) == 'N' ))
            {
                if ( log_info.log_flag )
                {
                    dm_log_write( __FILE__, 
                        __LINE__, 
                        LOG_INFO, 
                        LOG_INFO, 
                        "Application tried to turn logging off" );
                }
            }
            else
            {
                if ( log_info.log_flag )
                {
                    dm_log_write( __FILE__, 
                        __LINE__, 
                        LOG_INFO, 
                        LOG_INFO, 
                        "Application turning logging off" );
                }
                log_info.log_flag = 0;
            }
        }
        else
        {
            log_info.log_flag = 1;
        }

        return SQL_SUCCESS;
    }
    else if ( attribute == SQL_ATTR_TRACEFILE )
    {
        if ( value )
        {
            if ( log_info.log_file_name )
            {
                free( log_info.log_file_name );
            }
            log_info.log_file_name = strdup( value );
        }
        return SQL_SUCCESS;
    }

    /*
     * check connection
     */

    if ( !__validate_dbc( connection ))
    {
        dm_log_write( __FILE__, 
                    __LINE__, 
                    LOG_INFO, 
                    LOG_INFO, 
                    "Error: SQL_INVALID_HANDLE" );

        return SQL_INVALID_HANDLE;
    }

    function_entry( connection );

    if ( log_info.log_flag )
    {
        sprintf( connection -> msg, "\n\t\tEntry:\
            \n\t\t\tConnection = %p\
            \n\t\t\tAttribute = %s\
            \n\t\t\tValue = %p\
            \n\t\t\tStrLen = %d",
                connection,
                __con_attr_as_string( s1, attribute ),
                value, 
                (int)string_length );

        dm_log_write( __FILE__, 
                __LINE__, 
                LOG_INFO, 
                LOG_INFO, 
                connection -> msg );
    }

    thread_protect( SQL_HANDLE_DBC, connection );

    if ( connection -> state == STATE_C2 )
    {
        if ( attribute == SQL_ATTR_TRANSLATE_OPTION ||
                attribute == SQL_ATTR_TRANSLATE_LIB )
        {
            dm_log_write( __FILE__, 
                    __LINE__, 
                    LOG_INFO, 
                    LOG_INFO, 
                    "Error: 08003" );

            __post_internal_error( &connection -> error,
                ERROR_08003, NULL,
                connection -> environment -> requested_version );

            return function_return( SQL_HANDLE_DBC, connection, SQL_ERROR );
        }
    }
    else if ( connection -> state == STATE_C3 )
    {
        dm_log_write( __FILE__, 
                __LINE__, 
                LOG_INFO, 
                LOG_INFO, 
                "Error: HY010" );

        __post_internal_error( &connection -> error,
            ERROR_HY010, NULL,
            connection -> environment -> requested_version );

        return function_return( SQL_HANDLE_DBC, connection, SQL_ERROR );
    }
    else if ( connection -> state == STATE_C4 ||
            connection -> state == STATE_C5 ||
            connection -> state == STATE_C6 )
    {
        if ( attribute == SQL_ATTR_ODBC_CURSORS )
        {
            dm_log_write( __FILE__, 
                    __LINE__, 
                    LOG_INFO, 
                    LOG_INFO, 
                    "Error: 08002" );

            __post_internal_error( &connection -> error,
                ERROR_08002, NULL,
                connection -> environment -> requested_version );

            return function_return( SQL_HANDLE_DBC, connection, SQL_ERROR );
        }
        else if ( attribute == SQL_ATTR_PACKET_SIZE )
        {
            dm_log_write( __FILE__, 
                    __LINE__, 
                    LOG_INFO, 
                    LOG_INFO, 
                    "Error: HY011" );

            __post_internal_error( &connection -> error,
                ERROR_HY011, NULL,
                connection -> environment -> requested_version );

            return function_return( SQL_HANDLE_DBC, connection, SQL_ERROR );
        }
    }

    /*
     * is it something overridden
     */

    value = __attr_override( connection, SQL_HANDLE_DBC, attribute, value, &string_length );

    /*
     * we need to save this even if connected so we can use it for the next connetc
     */
    if ( attribute == SQL_ATTR_LOGIN_TIMEOUT )
    {
        connection -> login_timeout = ( SQLLEN ) value;
        connection -> login_timeout_set = 1;
    }

    /*
     * if connected, call the driver
     * otherwise we need to save the states and set them when we
     * do connect
     */
    if ( connection -> state == STATE_C2 )
    {
        /*
         * is it for us
         */

        if ( attribute == SQL_ATTR_ODBC_CURSORS )
        {
            connection -> cursors = ( SQLLEN ) value;
        }
        else if ( attribute == SQL_ATTR_ACCESS_MODE )
        {
            connection -> access_mode = ( SQLLEN ) value;
            connection -> access_mode_set = 1;
        }
        else if ( attribute == SQL_ATTR_ASYNC_ENABLE )
        {
            connection -> async_enable = ( SQLLEN ) value;
            connection -> async_enable_set = 1;
        }
        else if ( attribute == SQL_ATTR_AUTO_IPD )
        {
            connection -> auto_ipd = ( SQLLEN ) value;
            connection -> auto_ipd_set = 1;
        }
        else if ( attribute == SQL_ATTR_AUTOCOMMIT )
        {
            connection -> auto_commit = ( SQLLEN ) value;
            connection -> auto_commit_set = 1;
        }
        else if ( attribute == SQL_ATTR_CONNECTION_TIMEOUT )
        {
            connection -> connection_timeout = ( SQLLEN ) value;
            connection -> connection_timeout_set = 1;
        }
        else if ( attribute == SQL_ATTR_METADATA_ID )
        {
            connection -> metadata_id = ( SQLLEN ) value;
            connection -> metadata_id_set = 1;
        }
        else if ( attribute == SQL_ATTR_PACKET_SIZE )
        {
            connection -> packet_size = ( SQLLEN ) value;
            connection -> packet_size_set = 1;
        }
        else if ( attribute == SQL_ATTR_QUIET_MODE )
        {
            connection -> quite_mode = ( SQLLEN ) value;
            connection -> quite_mode_set = 1;
        }
        else if ( attribute == SQL_ATTR_TXN_ISOLATION )
        {
            connection -> txn_isolation = ( SQLLEN ) value;
            connection -> txn_isolation_set = 1;
        }
        else if ( attribute != SQL_ATTR_LOGIN_TIMEOUT )
        {
            /*
             * save any unknown attributes untill connect
             */

            struct save_attr *sa = calloc( 1, sizeof( struct save_attr ));

            sa -> attr_type = attribute;
            if ( string_length > 0 )
            {
                sa -> str_attr = malloc( string_length );
                memcpy( sa -> str_attr, value, string_length );
                sa -> str_len = string_length;
            }
            else if ( string_length == SQL_NTS )
            {
                sa -> str_attr = strdup( value );
                sa -> str_len = string_length;
            }
            else
            {
                sa -> int_attr = ( SQLLEN ) value;
            }
            sa -> next = connection -> save_attr;
            connection -> save_attr = sa;
        }

        sprintf( connection -> msg, 
                "\n\t\tExit:[%s]",
                    __get_return_status( SQL_SUCCESS, s1 ));

        dm_log_write( __FILE__, 
                __LINE__, 
                LOG_INFO, 
                LOG_INFO, 
                connection -> msg );

        return function_return( SQL_HANDLE_DBC, connection, SQL_SUCCESS );
    }
    else
    {
        if ( !connection -> unicode_driver )
        {
            if ( !CHECK_SQLSETCONNECTATTR( connection ))
            {
                if ( CHECK_SQLSETCONNECTOPTION( connection ))
                {
                    /*
                     * Is it in the legal range of values
                     */

                    if ( attribute < SQL_CONN_DRIVER_MIN && 
                            ( attribute > SQL_PACKET_SIZE || attribute < SQL_ACCESS_MODE ))
                    {
                        dm_log_write( __FILE__, 
                                    __LINE__, 
                                LOG_INFO, 
                                LOG_INFO, 
                                "Error: HY092" );

                        __post_internal_error( &connection -> error,
                                ERROR_HY092, NULL,
                                connection -> environment -> requested_version );

                        return function_return( SQL_HANDLE_DBC, connection, SQL_ERROR );
                    }

                    ret = SQLSETCONNECTOPTION( connection,
                            connection -> driver_dbc,
                            attribute,
                            value );
                }
                else
                {
                    dm_log_write( __FILE__, 
                            __LINE__, 
                            LOG_INFO, 
                            LOG_INFO, 
                            "Error: IM001" );

                    __post_internal_error( &connection -> error,
                            ERROR_IM001, NULL,
                            connection -> environment -> requested_version );

                    return function_return( SQL_HANDLE_DBC, connection, SQL_ERROR );
                }
            }
            else
            {
                ret = SQLSETCONNECTATTR( connection,
                        connection -> driver_dbc,
                        attribute,
                        value,
                        string_length );
            }
        }
        else
        {
            if ( !CHECK_SQLSETCONNECTATTRW( connection ))
            {
                if ( CHECK_SQLSETCONNECTOPTIONW( connection ))
                {
                    SQLWCHAR *s1;

                    /*
                     * Is it in the legal range of values
                     */

                    if ( attribute < SQL_CONN_DRIVER_MIN && 
                            ( attribute > SQL_PACKET_SIZE || attribute < SQL_ACCESS_MODE ))
                    {
                        dm_log_write( __FILE__, 
                                    __LINE__, 
                                LOG_INFO, 
                                LOG_INFO, 
                                "Error: HY092" );

                        __post_internal_error( &connection -> error,
                                ERROR_HY092, NULL,
                                connection -> environment -> requested_version );

                        return function_return( SQL_HANDLE_DBC, connection, SQL_ERROR );
                    }

                    switch( attribute )
                    {
                      case SQL_ATTR_CURRENT_CATALOG:
                      case SQL_ATTR_TRACEFILE:
                      case SQL_ATTR_TRANSLATE_LIB:
                        s1 = ansi_to_unicode_alloc( value, SQL_NTS, connection );

                        ret = SQLSETCONNECTOPTIONW( connection,
                                connection -> driver_dbc,
                                attribute,
                                s1 );

                        if ( s1 )
                            free( s1 );

                        break;

                      default:
                        ret = SQLSETCONNECTOPTIONW( connection,
                                connection -> driver_dbc,
                                attribute,
                                value );
                        break;
                    }
                }
                else
                {
                    dm_log_write( __FILE__, 
                            __LINE__, 
                            LOG_INFO, 
                            LOG_INFO, 
                            "Error: IM001" );

                    __post_internal_error( &connection -> error,
                            ERROR_IM001, NULL,
                            connection -> environment -> requested_version );

                    return function_return( SQL_HANDLE_DBC, connection, SQL_ERROR );
                }
            }
            else
            {
                SQLWCHAR *s1;

                switch( attribute )
                {
                  case SQL_ATTR_CURRENT_CATALOG:
                  case SQL_ATTR_TRACEFILE:
                  case SQL_ATTR_TRANSLATE_LIB:
                    s1 = ansi_to_unicode_alloc( value, string_length, connection );

                    ret = SQLSETCONNECTATTRW( connection,
                        connection -> driver_dbc,
                        attribute,
                        s1,
                        string_length );

                    if ( s1 )
                        free( s1 );
                    break;

                  default:
                    ret = SQLSETCONNECTATTRW( connection,
                        connection -> driver_dbc,
                        attribute,
                        value,
                        string_length );
                    break;
                }
            }
        }

        if ( log_info.log_flag )
        {
            sprintf( connection -> msg, 
                    "\n\t\tExit:[%s]",
                        __get_return_status( ret, s1 ));

            dm_log_write( __FILE__, 
                    __LINE__, 
                    LOG_INFO, 
                    LOG_INFO, 
                    connection -> msg );
        }
    }

    /*
     * catch this 
     */

    if ( attribute == SQL_ATTR_USE_BOOKMARKS && SQL_SUCCEEDED( ret ))
    {
        connection -> bookmarks_on = (SQLLEN) value;
    }

    return function_return( SQL_HANDLE_DBC, connection, ret );
}

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