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SQLSetEnvAttr.c
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SQLSetEnvAttr.c
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/*********************************************************************
*
* This is based on code created by Peter Harvey,
* ([email protected]).
*
* Modified and extended by Nick Gorham
* ([email protected]).
*
* Any bugs or problems should be considered the fault of Nick and not
* Peter.
*
* copyright (c) 1999 Nick Gorham
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
**********************************************************************
*
* $Id: SQLSetEnvAttr.c,v 1.9 2009/02/18 17:59:08 lurcher Exp $
*
* $Log: SQLSetEnvAttr.c,v $
* Revision 1.9 2009/02/18 17:59:08 lurcher
* Shift to using config.h, the compile lines were making it hard to spot warnings
*
* Revision 1.8 2009/02/17 09:47:44 lurcher
* Clear up a number of bugs
*
* Revision 1.7 2004/06/21 10:01:11 lurcher
*
* Fix a couple of 64 bit issues
*
* Revision 1.6 2003/10/30 18:20:46 lurcher
*
* Fix broken thread protection
* Remove SQLNumResultCols after execute, lease S4/S% to driver
* Fix string overrun in SQLDriverConnect
* Add initial support for Interix
*
* Revision 1.5 2003/03/05 09:48:45 lurcher
*
* Add some 64 bit fixes
*
* Revision 1.4 2003/01/23 15:33:25 lurcher
*
* Fix problems with using putenv()
*
* Revision 1.3 2002/12/05 17:44:31 lurcher
*
* Display unknown return values in return logging
*
* Revision 1.2 2002/02/21 18:44:09 lurcher
*
* Fix bug on 32 bit platforms without long long support
* Add option to set environment variables from the ini file
*
* Revision 1.1.1.1 2001/10/17 16:40:07 lurcher
*
* First upload to SourceForge
*
* Revision 1.5 2001/09/27 17:05:48 nick
*
* Assorted fixes and tweeks
*
* Revision 1.4 2001/07/03 09:30:41 nick
*
* Add ability to alter size of displayed message in the log
*
* Revision 1.3 2001/04/12 17:43:36 nick
*
* Change logging and added autotest to odbctest
*
* Revision 1.2 2000/12/14 18:10:19 nick
*
* Add connection pooling
*
* Revision 1.1.1.1 2000/09/04 16:42:52 nick
* Imported Sources
*
* Revision 1.7 1999/11/13 23:41:01 ngorham
*
* Alter the way DM logging works
* Upgrade the Postgres driver to 6.4.6
*
* Revision 1.6 1999/10/24 23:54:19 ngorham
*
* First part of the changes to the error reporting
*
* Revision 1.5 1999/09/21 22:34:25 ngorham
*
* Improve performance by removing unneeded logging calls when logging is
* disabled
*
* Revision 1.4 1999/07/10 21:10:17 ngorham
*
* Adjust error sqlstate from driver manager, depending on requested
* version (ODBC2/3)
*
* Revision 1.3 1999/07/04 21:05:08 ngorham
*
* Add LGPL Headers to code
*
* Revision 1.2 1999/06/30 23:56:55 ngorham
*
* Add initial thread safety code
*
* Revision 1.1.1.1 1999/05/29 13:41:08 sShandyb
* first go at it
*
* Revision 1.1.1.1 1999/05/27 18:23:18 pharvey
* Imported sources
*
* Revision 1.3 1999/05/09 23:27:11 nick
* All the API done now
*
* Revision 1.2 1999/04/30 16:22:47 nick
* Another checkpoint
*
* Revision 1.1 1999/04/25 23:06:11 nick
* Initial revision
*
*
**********************************************************************/
#include <config.h>
#include "drivermanager.h"
static char const rcsid[]= "$RCSfile: SQLSetEnvAttr.c,v $ $Revision: 1.9 $";
extern int pooling_enabled;
SQLRETURN SQLSetEnvAttr( SQLHENV environment_handle,
SQLINTEGER attribute,
SQLPOINTER value,
SQLINTEGER string_length )
{
DMHENV environment = (DMHENV) environment_handle;
SQLCHAR s1[ 100 + LOG_MESSAGE_LEN ];
if ( !environment_handle &&
( attribute == SQL_ATTR_CONNECTION_POOLING ||
attribute == SQL_ATTR_CP_MATCH ))
{
if ( attribute == SQL_ATTR_CONNECTION_POOLING ) {
if ((SQLLEN) value == SQL_CP_ONE_PER_DRIVER || (SQLLEN) value == SQL_CP_ONE_PER_HENV ) {
pooling_enabled = 1;
}
}
return SQL_SUCCESS;
}
/*
* check environment
*/
if ( !__validate_env( environment ))
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: SQL_INVALID_HANDLE" );
return SQL_INVALID_HANDLE;
}
function_entry( environment );
if ( log_info.log_flag )
{
sprintf( environment -> msg, "\n\t\tEntry:\
\n\t\t\tEnvironment = %p\
\n\t\t\tAttribute = %s\
\n\t\t\tValue = %p\
\n\t\t\tStrLen = %d",
environment,
__env_attr_as_string( s1, attribute ),
value,
(int)string_length );
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
environment -> msg );
}
thread_protect( SQL_HANDLE_ENV, environment );
switch ( attribute )
{
case SQL_ATTR_CONNECTION_POOLING:
{
#ifdef HAVE_PTRDIFF_T
SQLUINTEGER ptr = (ptrdiff_t) value;
#else
SQLUINTEGER ptr = (SQLUINTEGER) value;
#endif
if ( ptr != SQL_CP_OFF &&
ptr != SQL_CP_ONE_PER_DRIVER &&
ptr != SQL_CP_ONE_PER_HENV )
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: HY024" );
__post_internal_error( &environment -> error,
ERROR_HY024, NULL,
environment -> requested_version );
return function_return_nodrv( SQL_HANDLE_ENV, environment, SQL_ERROR );
}
environment -> connection_pooling = ptr;
}
break;
case SQL_ATTR_CP_MATCH:
{
#ifdef HAVE_PTRDIFF_T
SQLUINTEGER ptr = (ptrdiff_t) value;
#else
SQLUINTEGER ptr = (SQLUINTEGER) value;
#endif
if ( ptr != SQL_CP_STRICT_MATCH &&
ptr != SQL_CP_RELAXED_MATCH )
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: HY024" );
__post_internal_error( &environment -> error,
ERROR_HY024, NULL,
environment -> requested_version );
return function_return_nodrv( SQL_HANDLE_ENV, environment, SQL_ERROR );
}
environment -> cp_match = ptr;
}
break;
case SQL_ATTR_ODBC_VERSION:
{
#ifdef HAVE_PTRDIFF_T
SQLUINTEGER ptr = (ptrdiff_t) value;
#else
SQLUINTEGER ptr = (SQLUINTEGER) value;
#endif
if ( ptr != SQL_OV_ODBC2 &&
ptr != SQL_OV_ODBC3 &&
ptr != SQL_OV_ODBC3_80 )
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: HY024" );
__post_internal_error( &environment -> error,
ERROR_HY024, NULL,
environment -> requested_version );
return function_return_nodrv( SQL_HANDLE_ENV, environment, SQL_ERROR );
}
else
{
if ( environment -> connection_count > 0 )
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: S1010" );
__post_internal_error( &environment -> error,
ERROR_S1010, NULL,
environment -> requested_version );
return function_return_nodrv( SQL_HANDLE_ENV, environment, SQL_ERROR );
}
environment -> requested_version = ptr;
environment -> version_set = 1;
}
}
break;
case SQL_ATTR_OUTPUT_NTS:
{
#ifdef HAVE_PTRDIFF_T
SQLUINTEGER ptr = (ptrdiff_t) value;
#else
SQLUINTEGER ptr = (SQLUINTEGER) value;
#endif
/*
* this must be one of the most brain dead atribute,
* it can be set, but only to TRUE, any other value
* (ie FALSE) returns a error. It's almost as if it's not
* settable :-)
*/
if ( ptr == SQL_FALSE )
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: HYC00" );
__post_internal_error( &environment -> error,
ERROR_HYC00, NULL,
environment -> requested_version );
return function_return_nodrv( SQL_HANDLE_ENV, environment, SQL_ERROR );
}
}
break;
/*
* unixODBC additions
*/
case SQL_ATTR_UNIXODBC_ENVATTR:
if ( value )
{
char *str = (char*) value;
/*
* its a memory leak, but not much I can do, see "man putenv"
*/
putenv( strdup( str ));
return function_return_nodrv( SQL_HANDLE_ENV, environment, SQL_ERROR );
}
break;
/*
* Third party extensions
*/
case 1064: /* SQL_ATTR_APP_UNICODE_TYPE */
break;
default:
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: HY092" );
__post_internal_error( &environment -> error,
ERROR_HY092, NULL,
environment -> requested_version );
return function_return_nodrv( SQL_HANDLE_ENV, environment, SQL_ERROR );
}
if ( log_info.log_flag )
{
sprintf( environment -> msg,
"\n\t\tExit:[%s]",
__get_return_status( SQL_SUCCESS, s1 ));
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
environment -> msg );
}
return function_return_nodrv( SQL_HANDLE_ENV, environment, SQL_SUCCESS );
}