553 lines
16 KiB
C
553 lines
16 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: SQLGetData.c,v 1.15 2009/02/18 17:59:08 lurcher Exp $
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*
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* $Log: SQLGetData.c,v $
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* Revision 1.15 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 1.14 2007/04/02 10:50:19 lurcher
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* Fix some 64bit problems (only when sizeof(SQLLEN) == 8 )
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*
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* Revision 1.13 2006/04/11 10:22:56 lurcher
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* Fix a data type check
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*
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* Revision 1.12 2006/03/08 11:22:13 lurcher
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* Add check for valid C_TYPE
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*
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* Revision 1.11 2004/02/02 10:10:45 lurcher
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*
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* Fix some connection pooling problems
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* Include sqlucode in sqlext
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*
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* Revision 1.10 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 1.9 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 1.8 2002/08/23 09:42:37 lurcher
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*
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* Fix some build warnings with casts, and a AIX linker mod, to include
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* deplib's on the link line, but not the libtool generated ones
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*
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* Revision 1.7 2002/08/19 09:11:49 lurcher
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*
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* Fix Maxor ineffiecny in Postgres Drivers, and fix a return state
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*
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* Revision 1.6 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 1.5 2002/07/10 15:05:57 lurcher
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*
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* Alter the return code in the Postgres driver, for a warning, it should be
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* 01000 it was 00000
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* Fix a problem in DriverManagerII with the postgres driver as the driver
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* doesn't return a propper list of schemas
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* Allow the delimiter to be set in isql to a hex/octal char not just a
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* printable one
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*
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* Revision 1.4 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 1.3 2001/12/04 10:16:59 lurcher
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*
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* Fix SQLSetScrollOption problem
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*
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* Revision 1.2 2001/11/22 14:27:02 lurcher
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*
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* Add UNICODE conversion fix
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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 1.5 2001/09/27 17:05:48 nick
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*
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* Assorted fixes and tweeks
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*
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* Revision 1.4 2001/07/03 09:30:41 nick
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*
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* Add ability to alter size of displayed message in the log
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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 2001/01/01 11:04:13 nick
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*
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* Add UNICODE conversion to SQLGetData
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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 1.10 2000/06/20 13:30:09 ngorham
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*
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* Fix problems when using bookmarks
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*
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* Revision 1.9 1999/11/13 23:40:59 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 1.8 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 1.7 1999/10/09 00:56:16 ngorham
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*
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* Added Manush's patch to map ODBC 3-2 datetime values
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*
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* Revision 1.6 1999/10/09 00:15:58 ngorham
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*
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* Add mapping from SQL_TYPE_X to SQL_X and SQL_C_TYPE_X to SQL_C_X
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* when the driver is a ODBC 2 one
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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 21:05:07 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 13:41:07 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 18:23:17 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: SQLGetData.c,v $ $Revision: 1.15 $";
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SQLRETURN SQLGetData( SQLHSTMT statement_handle,
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SQLUSMALLINT column_number,
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SQLSMALLINT target_type,
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SQLPOINTER target_value,
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SQLLEN buffer_length,
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SQLLEN *strlen_or_ind )
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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[ 100 + LOG_MESSAGE_LEN ], s2[ 100 + LOG_MESSAGE_LEN ];
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int unicode_switch = 0;
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SQLLEN ind_value;
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SQLCHAR *as1 = NULL;
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SQLCHAR s3[ 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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sprintf( statement -> msg, "\n\t\tEntry:\
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\n\t\t\tStatement = %p\
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\n\t\t\tColumn Number = %d\
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\n\t\t\tTarget Type = %d %s\
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\n\t\t\tBuffer Length = %d\
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\n\t\t\tTarget Value = %p\
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\n\t\t\tStrLen Or Ind = %p",
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statement,
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column_number,
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target_type,
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__sql_as_text( target_type ),
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(int)buffer_length,
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target_value,
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(void*)strlen_or_ind );
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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 ( column_number == 0 &&
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statement -> bookmarks_on == SQL_UB_OFF && statement -> connection -> bookmarks_on == SQL_UB_OFF )
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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: 07009" );
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__post_internal_error_api( &statement -> error,
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ERROR_07009, NULL,
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statement -> connection -> environment -> requested_version,
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SQL_API_SQLGETDATA );
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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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* can't trust the numcols value
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*
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if ( statement -> numcols < column_number )
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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: 07009" );
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__post_internal_error( &statement -> error,
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ERROR_07009, NULL,
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statement -> connection -> environment -> requested_version );
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return function_return( SQL_HANDLE_STMT, statement, SQL_ERROR );
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}
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*/
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/*
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* check states
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*/
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if ( statement -> state == STATE_S1 ||
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statement -> state == STATE_S2 ||
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statement -> state == STATE_S3 )
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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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else if ( statement -> state == STATE_S4 ||
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statement -> state == STATE_S5 ||
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( statement -> state == STATE_S6 || statement -> state == STATE_S7 )
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&& statement -> eod )
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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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{
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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_SQLGETDATA )
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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 ( target_value == NULL ) {
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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 ( buffer_length < 0 ) {
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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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* TO_DO assorted checks need adding here, relating to bound columns
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* and what sort of SQLGetData extensions the driver supports
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*/
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/*
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* check valid C_TYPE
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*/
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if ( !check_target_type( target_type, statement -> connection -> environment -> requested_version ))
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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: HY003" );
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__post_internal_error( &statement -> error,
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ERROR_HY003, 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 ( !CHECK_SQLGETDATA( 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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if (statement -> connection -> driver_act_ver==SQL_OV_ODBC2)
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{
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switch( target_type )
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{
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case SQL_WCHAR:
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target_type = SQL_CHAR;
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unicode_switch = 1;
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buffer_length = buffer_length / sizeof( SQLWCHAR );
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break;
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case SQL_WVARCHAR:
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target_type = SQL_VARCHAR;
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unicode_switch = 1;
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buffer_length = buffer_length / sizeof( SQLWCHAR );
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break;
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case SQL_WLONGVARCHAR:
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target_type = SQL_LONGVARCHAR;
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unicode_switch = 1;
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buffer_length = buffer_length / sizeof( SQLWCHAR );
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break;
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}
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}
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if ( unicode_switch )
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{
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if ( buffer_length > 0 && target_value )
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{
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as1 = malloc( buffer_length + 1 );
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ret = SQLGETDATA( statement -> connection,
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statement -> driver_stmt,
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column_number,
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__map_type(MAP_C_DM2D,statement->connection,target_type),
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as1,
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buffer_length,
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&ind_value );
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}
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else
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{
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ret = SQLGETDATA( statement -> connection,
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statement -> driver_stmt,
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column_number,
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__map_type(MAP_C_DM2D,statement->connection,target_type),
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target_value,
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buffer_length,
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&ind_value );
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}
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}
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else
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{
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ret = SQLGETDATA( statement -> connection,
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statement -> driver_stmt,
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column_number,
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__map_type(MAP_C_DM2D,statement->connection,target_type),
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target_value,
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buffer_length,
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strlen_or_ind );
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}
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if ( ret == SQL_STILL_EXECUTING )
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{
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statement -> interupted_func = SQL_API_SQLGETDATA;
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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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statement -> interupted_state = statement -> state;
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statement -> state = STATE_S11;
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}
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}
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else if ( SQL_SUCCEEDED( ret ) && unicode_switch )
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{
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if ( target_value && ind_value >= 0 && as1 )
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{
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if ( ind_value > buffer_length )
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{
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ansi_to_unicode_copy( target_value, (char*) as1, buffer_length, statement -> connection, NULL );
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}
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else
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{
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ansi_to_unicode_copy( target_value, (char*) as1, ind_value + 1, statement -> connection, NULL );
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}
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}
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if ( as1 )
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{
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free( as1 );
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}
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if ( ind_value > 0 )
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{
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ind_value *= sizeof( SQLWCHAR );
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}
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if ( strlen_or_ind )
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{
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*strlen_or_ind = ind_value;
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}
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}
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if ( ret != SQL_STILL_EXECUTING
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&& (statement -> state == STATE_S11 || statement -> state == STATE_S12) )
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{
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statement -> state = statement -> interupted_state;
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}
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if ( statement -> state == STATE_S14 ) {
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statement -> state = STATE_S15;
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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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\n\t\t\tBuffer = %s\
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\n\t\t\tStrlen Or Ind = %s",
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__get_return_status( ret, s3 ),
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__data_as_string( s1, target_type,
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strlen_or_ind, target_value ),
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__ptr_as_string( s2, strlen_or_ind ));
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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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