459 lines
14 KiB
C
459 lines
14 KiB
C
/*********************************************************************
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*
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* This is based on code created by Peter Harvey,
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* (pharvey@codebydesign.com).
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*
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* Modified and extended by Nick Gorham
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* (nick@lurcher.org).
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*
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* Any bugs or problems should be considered the fault of Nick and not
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* Peter.
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*
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* copyright (c) 1999 Nick Gorham
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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**********************************************************************
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*
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* $Id: SQLDriversW.c,v 1.12 2009/02/18 17:59:08 lurcher Exp $
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*
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* $Log: SQLDriversW.c,v $
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* Revision 1.12 2009/02/18 17:59:08 lurcher
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* Shift to using config.h, the compile lines were making it hard to spot warnings
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*
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* Revision 1.11 2009/02/17 09:47:44 lurcher
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* Clear up a number of bugs
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*
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* Revision 1.10 2008/09/29 14:02:45 lurcher
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* Fix missing dlfcn group option
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*
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* Revision 1.9 2005/07/17 09:11:23 lurcher
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* Fix bug in SQLDrivers that was stopping the return of the attribute length
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*
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* Revision 1.8 2004/07/25 00:42:02 peteralexharvey
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* for OS2 port
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*
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* Revision 1.7 2003/11/13 15:12:53 lurcher
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*
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* small change to ODBCConfig to have the password field in the driver
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* properties hide the password
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* Make both # and ; comments in ini files
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*
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* Revision 1.6 2003/10/30 18:20:45 lurcher
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*
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* Fix broken thread protection
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* Remove SQLNumResultCols after execute, lease S4/S% to driver
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* Fix string overrun in SQLDriverConnect
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* Add initial support for Interix
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*
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* Revision 1.5 2002/12/05 17:44:30 lurcher
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*
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* Display unknown return values in return logging
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*
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* Revision 1.4 2002/07/24 08:49:51 lurcher
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*
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* Alter UNICODE support to use iconv for UNICODE-ANSI conversion
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*
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* Revision 1.3 2002/05/21 14:19:44 lurcher
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*
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* * Update libtool to escape from AIX build problem
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* * Add fix to avoid file handle limitations
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* * Add more UNICODE changes, it looks like it is native 16 representation
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* the old way can be reproduced by defining UCS16BE
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* * Add iusql, its just the same as isql but uses the wide functions
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*
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* Revision 1.2 2001/12/13 13:00:32 lurcher
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*
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* Remove most if not all warnings on 64 bit platforms
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* Add support for new MS 3.52 64 bit changes
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* Add override to disable the stopping of tracing
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* Add MAX_ROWS support in postgres driver
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*
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* Revision 1.1.1.1 2001/10/17 16:40:05 lurcher
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*
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* First upload to SourceForge
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*
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* Revision 1.4 2001/05/15 10:57:44 nick
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*
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* Add initial support for VMS
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*
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* Revision 1.3 2001/04/12 17:43:36 nick
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*
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* Change logging and added autotest to odbctest
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*
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* Revision 1.2 2001/01/02 09:55:04 nick
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*
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* More unicode bits
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*
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* Revision 1.1 2000/12/31 20:30:54 nick
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*
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* Add UNICODE support
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*
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*
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**********************************************************************/
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#include <config.h>
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#include "drivermanager.h"
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static char const rcsid[]= "$RCSfile: SQLDriversW.c,v $";
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#define BUFFERSIZE 1024
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SQLRETURN SQLDriversW(
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SQLHENV henv,
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SQLUSMALLINT fdirection,
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SQLWCHAR *sz_driver_desc,
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SQLSMALLINT cb_driver_desc_max,
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SQLSMALLINT *pcb_driver_desc,
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SQLWCHAR *sz_driver_attributes,
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SQLSMALLINT cb_drvr_attr_max,
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SQLSMALLINT *pcb_drvr_attr )
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{
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DMHENV environment = (DMHENV) henv;
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char buffer[ BUFFERSIZE + 1 ];
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char object[ INI_MAX_OBJECT_NAME + 1 ];
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SQLRETURN ret = SQL_SUCCESS;
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SQLCHAR s1[ 100 + LOG_MESSAGE_LEN ];
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if ( !__validate_env( environment ))
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{
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dm_log_write( __FILE__,
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__LINE__,
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LOG_INFO,
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LOG_INFO,
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"Error: SQL_INVALID_HANDLE" );
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return SQL_INVALID_HANDLE;
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}
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function_entry( environment );
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if ( log_info.log_flag )
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{
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sprintf( environment -> msg, "\n\t\tEntry:\
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\n\t\t\tEnvironment = %p\
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\n\t\t\tDirection = %d",
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environment,
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(int)fdirection );
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dm_log_write( __FILE__,
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__LINE__,
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LOG_INFO,
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LOG_INFO,
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environment -> msg );
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}
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thread_protect( SQL_HANDLE_ENV, environment );
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/*
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* check that a version has been requested
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*/
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if ( ! environment -> version_set )
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{
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dm_log_write( __FILE__,
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__LINE__,
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LOG_INFO,
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LOG_INFO,
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"Error: HY010" );
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__post_internal_error( &environment -> error,
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ERROR_HY010, NULL,
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SQL_OV_ODBC3 );
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return function_return_nodrv( SQL_HANDLE_ENV, environment, SQL_ERROR );
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}
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if ( cb_driver_desc_max < 0 )
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{
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dm_log_write( __FILE__,
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__LINE__,
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LOG_INFO,
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LOG_INFO,
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"Error: HY090" );
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__post_internal_error( &environment -> error,
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ERROR_HY090, NULL,
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environment -> requested_version );
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return function_return_nodrv( SQL_HANDLE_ENV, environment, SQL_ERROR );
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}
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if ( cb_drvr_attr_max < 0
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|| cb_drvr_attr_max == 1 )
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{
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dm_log_write( __FILE__,
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__LINE__,
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LOG_INFO,
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LOG_INFO,
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"Error: HY090" );
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__post_internal_error( &environment -> error,
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ERROR_HY090, NULL,
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environment -> requested_version );
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return function_return_nodrv( SQL_HANDLE_ENV, environment, SQL_ERROR );
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}
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if ( fdirection != SQL_FETCH_FIRST &&
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fdirection != SQL_FETCH_NEXT )
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{
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dm_log_write( __FILE__,
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__LINE__,
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LOG_INFO,
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LOG_INFO,
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"Error: HY103" );
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__post_internal_error( &environment -> error,
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ERROR_HY103, NULL,
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environment -> requested_version );
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return function_return_nodrv( SQL_HANDLE_ENV, environment, SQL_ERROR );
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}
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if ( fdirection == SQL_FETCH_FIRST )
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environment -> sql_driver_count = 0;
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else
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environment -> sql_driver_count ++;
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try_again:
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memset( buffer, '\0', sizeof( buffer ));
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memset( object, '\0', sizeof( object ));
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SQLGetPrivateProfileString( NULL, NULL,
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NULL, buffer, sizeof( buffer ), "ODBCINST.INI" );
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if ( iniElement( buffer, '\0', '\0',
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environment -> sql_driver_count,
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object, sizeof( object )) != INI_SUCCESS )
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{
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/*
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* Set up for the next time
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*/
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environment -> sql_driver_count = -1;
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ret = SQL_NO_DATA;
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}
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else
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{
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ret = SQL_SUCCESS;
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/*
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* this section is used for internal info
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*/
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if ( strcmp( object, "ODBC" ) == 0 )
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{
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environment -> sql_driver_count ++;
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goto try_again;
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}
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if ( pcb_driver_desc )
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*pcb_driver_desc = strlen( object );
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if ( sz_driver_desc )
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{
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if ( strlen( object ) >= cb_driver_desc_max )
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{
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memcpy( sz_driver_desc, object, cb_driver_desc_max - 1 );
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sz_driver_desc[ cb_driver_desc_max - 1 ] = '\0';
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ret = SQL_SUCCESS_WITH_INFO;
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}
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else
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{
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SQLWCHAR *s1;
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s1 = ansi_to_unicode_alloc((SQLCHAR*) object, SQL_NTS, NULL, NULL );
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if ( s1 )
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{
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wide_strcpy( sz_driver_desc, s1 );
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free( s1 );
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}
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}
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}
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else
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{
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ret = SQL_SUCCESS;
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}
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if ( sz_driver_attributes ||
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pcb_drvr_attr )
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{
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HINI hIni;
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char szPropertyName[INI_MAX_PROPERTY_NAME+1];
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char szValue[INI_MAX_PROPERTY_NAME+1];
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char szIniName[ INI_MAX_OBJECT_NAME + 1 ];
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char buffer[ 1024 ];
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int total_len = 0;
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char b1[ 512 ], b2[ 512 ];
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int found = 0;
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/*
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* enumerate the driver attributes, first in system odbcinst.ini and if not found in user odbcinst.ini
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*/
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sprintf( szIniName, "%s/%s", odbcinst_system_file_path( b1 ), odbcinst_system_file_name( b2 ));
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memset( buffer, '\0', sizeof( buffer ));
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#ifdef __OS2__
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if ( iniOpen( &hIni, szIniName, "#;", '[', ']', '=', FALSE, 1L ) ==
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INI_SUCCESS )
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#else
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if ( iniOpen( &hIni, szIniName, "#;", '[', ']', '=', FALSE ) ==
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INI_SUCCESS )
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#endif
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{
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iniObjectSeek( hIni, (char *)object );
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iniPropertyFirst( hIni );
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while ( iniPropertyEOL( hIni ) != TRUE )
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{
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iniProperty( hIni, szPropertyName );
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iniValue( hIni, szValue );
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sprintf( buffer, "%s=%s", szPropertyName,
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szValue );
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found = 1;
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if ( sz_driver_attributes ) {
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if ( total_len + strlen( buffer ) + 1 > cb_drvr_attr_max )
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{
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ret = SQL_SUCCESS_WITH_INFO;
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}
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else
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{
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SQLWCHAR *s1;
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s1 = ansi_to_unicode_alloc((SQLCHAR*) buffer, SQL_NTS, NULL, NULL );
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if ( s1 )
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{
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wide_strcpy( sz_driver_attributes, s1 );
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free( s1 );
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}
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sz_driver_attributes += strlen( buffer ) + 1;
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}
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}
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total_len += strlen( buffer ) + 1;
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iniPropertyNext( hIni );
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}
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/*
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* add extra null
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*/
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if ( sz_driver_attributes )
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*sz_driver_attributes = '\0';
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if ( pcb_drvr_attr )
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{
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*pcb_drvr_attr = total_len;
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}
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iniClose( hIni );
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}
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if ( !found )
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{
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sprintf( szIniName, "%s/%s", odbcinst_system_file_path( b1 ), odbcinst_system_file_name( b2 ));
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memset( buffer, '\0', sizeof( buffer ));
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#ifdef __OS2__
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if ( iniOpen( &hIni, szIniName, "#;", '[', ']', '=', FALSE, 1L ) ==
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INI_SUCCESS )
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#else
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if ( iniOpen( &hIni, szIniName, "#;", '[', ']', '=', FALSE ) ==
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INI_SUCCESS )
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#endif
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{
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iniObjectSeek( hIni, (char *)object );
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iniPropertyFirst( hIni );
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while ( iniPropertyEOL( hIni ) != TRUE )
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{
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iniProperty( hIni, szPropertyName );
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iniValue( hIni, szValue );
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sprintf( buffer, "%s=%s", szPropertyName,
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szValue );
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if ( sz_driver_attributes ) {
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if ( total_len + strlen( buffer ) + 1 > cb_drvr_attr_max )
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{
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ret = SQL_SUCCESS_WITH_INFO;
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}
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else
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{
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SQLWCHAR *s1;
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s1 = ansi_to_unicode_alloc((SQLCHAR*) buffer, SQL_NTS, NULL, NULL );
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if ( s1 )
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{
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wide_strcpy( sz_driver_attributes, s1 );
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free( s1 );
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}
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sz_driver_attributes += strlen( buffer ) + 1;
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}
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}
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total_len += strlen( buffer ) + 1;
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iniPropertyNext( hIni );
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}
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/*
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* add extra null
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*/
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if ( sz_driver_attributes )
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*sz_driver_attributes = '\0';
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if ( pcb_drvr_attr )
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{
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*pcb_drvr_attr = total_len;
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}
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iniClose( hIni );
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}
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}
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}
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}
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if ( ret == SQL_SUCCESS_WITH_INFO )
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{
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dm_log_write( __FILE__,
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__LINE__,
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LOG_INFO,
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LOG_INFO,
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"Error: 01004" );
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__post_internal_error( &environment -> error,
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ERROR_01004, NULL,
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environment -> requested_version );
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}
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if ( log_info.log_flag )
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{
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sprintf( environment -> msg,
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"\n\t\tExit:[%s]",
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__get_return_status( ret, s1 ));
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dm_log_write( __FILE__,
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__LINE__,
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LOG_INFO,
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LOG_INFO,
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environment -> msg );
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}
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return function_return_nodrv( SQL_HANDLE_ENV, environment, ret );
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}
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