385 lines
11 KiB
C
385 lines
11 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: SQLPrepare.c,v 1.7 2009/02/18 17:59:08 lurcher Exp $
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*
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* $Log: SQLPrepare.c,v $
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* Revision 1.7 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 1.6 2005/03/04 14:38:08 lurcher
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* Bump version number
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*
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* Revision 1.5 2003/10/30 18:20:46 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 1.4 2002/12/05 17:44:31 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 1.3 2002/07/24 08:49:52 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 1.2 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 16:40:06 lurcher
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*
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* First upload to SourceForge
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*
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* Revision 1.4 2001/04/12 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 1.3 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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* Revision 1.2 2000/10/25 09:23:53 nick
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*
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* Fixed incorrect error return when NULL string passed
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*
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* Revision 1.1.1.1 2000/09/04 16:42:52 nick
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* Imported Sources
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*
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* Revision 1.7 1999/11/13 23:41:00 ngorham
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*
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* Alter the way DM logging works
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* Upgrade the Postgres driver to 6.4.6
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*
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* Revision 1.6 1999/10/24 23:54:18 ngorham
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*
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* First part of the changes to the error reporting
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*
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* Revision 1.5 1999/09/21 22:34:25 ngorham
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*
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* Improve performance by removing unneeded logging calls when logging is
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* disabled
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*
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* Revision 1.4 1999/07/10 21:10:16 ngorham
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*
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* Adjust error sqlstate from driver manager, depending on requested
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* version (ODBC2/3)
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*
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* Revision 1.3 1999/07/04 21:05:08 ngorham
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*
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* Add LGPL Headers to code
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*
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* Revision 1.2 1999/06/30 23:56:55 ngorham
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*
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* Add initial thread safety code
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*
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* Revision 1.1.1.1 1999/05/29 13:41:08 sShandyb
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* first go at it
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*
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* Revision 1.1.1.1 1999/05/27 18:23:18 pharvey
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* Imported sources
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*
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* Revision 1.4 1999/05/03 19:50:43 nick
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* Another check point
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*
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* Revision 1.3 1999/04/30 16:22:47 nick
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* Another checkpoint
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*
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* Revision 1.2 1999/04/29 20:47:37 nick
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* Another checkpoint
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*
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* Revision 1.1 1999/04/25 23:06:11 nick
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* Initial revision
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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: SQLPrepare.c,v $ $Revision: 1.7 $";
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SQLRETURN SQLPrepareA( SQLHSTMT statement_handle,
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SQLCHAR *statement_text,
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SQLINTEGER text_length )
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{
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return SQLPrepare( statement_handle,
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statement_text,
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text_length );
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}
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SQLRETURN SQLPrepare( SQLHSTMT statement_handle,
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SQLCHAR *statement_text,
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SQLINTEGER text_length )
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{
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DMHSTMT statement = (DMHSTMT) statement_handle;
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SQLRETURN ret;
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SQLCHAR *s1;
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SQLCHAR s2[ 100 + LOG_MESSAGE_LEN ];
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/*
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* check statement
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*/
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if ( !__validate_stmt( statement ))
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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( statement );
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if ( log_info.log_flag )
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{
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/*
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* allocate some space for the buffer
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*/
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if ( statement_text && text_length == SQL_NTS )
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{
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s1 = malloc( strlen((char*) statement_text ) + 100 );
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}
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else if ( statement_text )
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{
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s1 = malloc( text_length + 100 );
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}
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else
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{
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s1 = malloc( 101 );
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}
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sprintf( statement -> msg, "\n\t\tEntry:\
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\n\t\t\tStatement = %p\
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\n\t\t\tSQL = %s",
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statement,
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__string_with_length( s1, statement_text, text_length ));
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free( 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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statement -> msg );
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}
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thread_protect( SQL_HANDLE_STMT, statement );
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if ( !statement_text )
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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: HY009" );
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__post_internal_error( &statement -> error,
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ERROR_HY009, NULL,
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statement -> connection -> environment -> requested_version );
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return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
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}
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if ( text_length <= 0 && text_length != SQL_NTS )
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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( &statement -> error,
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ERROR_HY090, NULL,
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statement -> connection -> environment -> requested_version );
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return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
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}
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/*
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* check states
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*/
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#ifdef NR_PROBE
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if ( statement -> state == STATE_S5 ||
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statement -> state == STATE_S6 ||
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statement -> state == STATE_S7 )
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#else
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if ( statement -> state == STATE_S6 ||
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statement -> state == STATE_S7 )
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#endif
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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: 24000" );
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__post_internal_error( &statement -> error,
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ERROR_24000, NULL,
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statement -> connection -> environment -> requested_version );
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return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
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}
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else if ( statement -> state == STATE_S8 ||
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statement -> state == STATE_S9 ||
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statement -> state == STATE_S10 ||
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statement -> state == STATE_S13 ||
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statement -> state == STATE_S14 ||
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statement -> state == STATE_S15 )
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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( &statement -> error,
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ERROR_HY010, NULL,
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statement -> connection -> environment -> requested_version );
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return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
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}
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if ( statement -> state == STATE_S11 ||
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statement -> state == STATE_S12 )
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{
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if ( statement -> interupted_func != SQL_API_SQLPREPARE )
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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( &statement -> error,
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ERROR_HY010, NULL,
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statement -> connection -> environment -> requested_version );
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return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
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}
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}
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if ( statement -> connection -> unicode_driver )
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{
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int wlen;
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SQLWCHAR *s1;
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if ( !CHECK_SQLPREPAREW( statement -> connection ))
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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: IM001" );
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__post_internal_error( &statement -> error,
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ERROR_IM001, NULL,
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statement -> connection -> environment -> requested_version );
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return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
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}
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s1 = ansi_to_unicode_alloc( statement_text, text_length, statement -> connection, &wlen );
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text_length = wlen;
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ret = SQLPREPAREW( statement -> connection ,
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statement -> driver_stmt,
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s1,
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text_length );
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if ( s1 )
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free( s1 );
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}
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else
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{
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if ( !CHECK_SQLPREPARE( statement -> connection ))
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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: IM001" );
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__post_internal_error( &statement -> error,
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ERROR_IM001, NULL,
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statement -> connection -> environment -> requested_version );
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return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
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}
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ret = SQLPREPARE( statement -> connection ,
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statement -> driver_stmt,
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statement_text,
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text_length );
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}
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if ( SQL_SUCCEEDED( ret ))
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{
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statement -> hascols = 0;
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statement -> state = STATE_S3;
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statement -> prepared = 1;
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}
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else if ( ret == SQL_STILL_EXECUTING )
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{
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statement -> interupted_func = SQL_API_SQLPREPARE;
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if ( statement -> state != STATE_S11 &&
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statement -> state != STATE_S12 )
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statement -> state = STATE_S11;
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}
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else
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{
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statement -> state = STATE_S1;
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}
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if ( log_info.log_flag )
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{
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sprintf( statement -> msg,
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"\n\t\tExit:[%s]",
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__get_return_status( ret, s2 ));
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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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statement -> msg );
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}
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return function_return( SQL_HANDLE_STMT, statement, ret );
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}
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