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/*********************************************************************
*
* This is based on code created by Peter Harvey,
* (pharvey@codebydesign.com).
*
* Modified and extended by Nick Gorham
* (nick@easysoft.com).
*
* Any bugs or problems should be considered the fault of Nick and not
* Peter.
*
* copyright (c) 1999 Nick Gorham
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
**********************************************************************
*
* $Id: SQLDescribeCol.c,v 1.2 2001/12/13 13:00:32 lurcher Exp $
*
* $Log: SQLDescribeCol.c,v $
* Revision 1.2 2001/12/13 13:00:32 lurcher
*
* Remove most if not all warnings on 64 bit platforms
* Add support for new MS 3.52 64 bit changes
* Add override to disable the stopping of tracing
* Add MAX_ROWS support in postgres driver
*
* Revision 1.1.1.1 2001/10/17 16:40:05 lurcher
*
* First upload to SourceForge
*
* Revision 1.5 2001/07/03 09:30:41 nick
*
* Add ability to alter size of displayed message in the log
*
* Revision 1.4 2001/04/12 17:43:36 nick
*
* Change logging and added autotest to odbctest
*
* Revision 1.3 2001/01/02 09:55:04 nick
*
* More unicode bits
*
* Revision 1.2 2000/12/31 20:30:54 nick
*
* Add UNICODE support
*
* Revision 1.1.1.1 2000/09/04 16:42:52 nick
* Imported Sources
*
* Revision 1.10 2000/06/20 13:30:09 ngorham
*
* Fix problems when using bookmarks
*
* Revision 1.9 1999/11/28 18:35:50 ngorham
*
* Add extra ODBC3/2 Date/Time mapping
*
* Revision 1.8 1999/11/13 23:40:59 ngorham
*
* Alter the way DM logging works
* Upgrade the Postgres driver to 6.4.6
*
* Revision 1.7 1999/10/24 23:54:17 ngorham
*
* First part of the changes to the error reporting
*
* Revision 1.6 1999/10/09 00:56:16 ngorham
*
* Added Manush's patch to map ODBC 3-2 datetime values
*
* Revision 1.5 1999/09/21 22:34:24 ngorham
*
* Improve performance by removing unneeded logging calls when logging is
* disabled
*
* Revision 1.4 1999/07/10 21:10:16 ngorham
*
* Adjust error sqlstate from driver manager, depending on requested
* version (ODBC2/3)
*
* Revision 1.3 1999/07/04 21:05:07 ngorham
*
* Add LGPL Headers to code
*
* Revision 1.2 1999/06/30 23:56:54 ngorham
*
* Add initial thread safety code
*
* Revision 1.1.1.1 1999/05/29 13:41:05 sShandyb
* first go at it
*
* Revision 1.1.1.1 1999/05/27 18:23:17 pharvey
* Imported sources
*
* Revision 1.4 1999/05/03 19:50:43 nick
* Another check point
*
* Revision 1.3 1999/04/30 16:22:47 nick
* Another checkpoint
*
* Revision 1.2 1999/04/29 21:40:58 nick
* End of another night :-)
*
* Revision 1.1 1999/04/25 23:06:11 nick
* Initial revision
*
*
**********************************************************************/
#include "drivermanager.h"
static char const rcsid[]= "$RCSfile: SQLDescribeCol.c,v $ $Revision: 1.2 $";
SQLRETURN SQLDescribeCol( SQLHSTMT statement_handle,
SQLUSMALLINT column_number,
SQLCHAR *column_name,
SQLSMALLINT buffer_length,
SQLSMALLINT *name_length,
SQLSMALLINT *data_type,
SQLULEN *column_size,
SQLSMALLINT *decimal_digits,
SQLSMALLINT *nullable )
{
DMHSTMT statement = (DMHSTMT) statement_handle;
SQLRETURN ret;
SQLCHAR s1[ 100 + LOG_MESSAGE_LEN ], s2[ 100 + LOG_MESSAGE_LEN ], s3[ 100 + LOG_MESSAGE_LEN ], s4[ 100 + LOG_MESSAGE_LEN ];
SQLCHAR s5[ 100 + LOG_MESSAGE_LEN ];
/*
* check statement
*/
if ( !__validate_stmt( statement ))
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: SQL_INVALID_HANDLE" );
return SQL_INVALID_HANDLE;
}
function_entry( statement );
if ( log_info.log_flag )
{
sprintf( statement -> msg, "\n\t\tEntry:\
\n\t\t\tStatement = %p\
\n\t\t\tColumn Number = %d\
\n\t\t\tColumn Name = %p\
\n\t\t\tBuffer Length = %d\
\n\t\t\tName Length = %p\
\n\t\t\tData Type = %p\
\n\t\t\tColumn Size = %p\
\n\t\t\tDecimal Digits = %p\
\n\t\t\tNullable = %p",
statement,
column_number,
column_name,
buffer_length,
name_length,
data_type,
column_size,
decimal_digits,
nullable );
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
statement -> msg );
}
thread_protect( SQL_HANDLE_STMT, statement );
if ( column_number == 0 &&
statement -> bookmarks_on == SQL_UB_OFF && statement -> connection -> bookmarks_on == SQL_UB_OFF )
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: 07009" );
__post_internal_error( &statement -> error,
ERROR_07009, NULL,
statement -> connection -> environment -> requested_version );
thread_release( SQL_HANDLE_STMT, statement );
return function_return( statement, SQL_ERROR );
}
/*
* sadly we can't truct the numcols value
*
if ( statement -> numcols < column_number )
{
__post_internal_error( &statement -> error,
ERROR_07009, NULL,
statement -> connection -> environment -> requested_version );
thread_release( SQL_HANDLE_STMT, statement );
return function_return( statement, SQL_ERROR );
}
*/
if ( buffer_length < 0 )
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: HY090" );
__post_internal_error( &statement -> error,
ERROR_HY090, NULL,
statement -> connection -> environment -> requested_version );
thread_release( SQL_HANDLE_STMT, statement );
return function_return( statement, SQL_ERROR );
}
/*
* check states
*/
if ( statement -> state == STATE_S1 ||
statement -> state == STATE_S8 ||
statement -> state == STATE_S9 ||
statement -> state == STATE_S10 )
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: HY010" );
__post_internal_error( &statement -> error,
ERROR_HY010, NULL,
statement -> connection -> environment -> requested_version );
thread_release( SQL_HANDLE_STMT, statement );
return function_return( statement, SQL_ERROR );
}
else if ( statement -> state == STATE_S2 )
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: 07005" );
__post_internal_error( &statement -> error,
ERROR_07005, NULL,
statement -> connection -> environment -> requested_version );
thread_release( SQL_HANDLE_STMT, statement );
return function_return( statement, SQL_ERROR );
}
else if ( statement -> state == STATE_S4 )
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: HY010" );
__post_internal_error( &statement -> error,
ERROR_HY010, NULL,
statement -> connection -> environment -> requested_version );
thread_release( SQL_HANDLE_STMT, statement );
return function_return( statement, SQL_ERROR );
}
else if ( statement -> state == STATE_S8 ||
statement -> state == STATE_S9 ||
statement -> state == STATE_S10 )
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: HY010" );
__post_internal_error( &statement -> error,
ERROR_HY010, NULL,
statement -> connection -> environment -> requested_version );
thread_release( SQL_HANDLE_STMT, statement );
return function_return( statement, SQL_ERROR );
}
if ( statement -> state == STATE_S11 ||
statement -> state == STATE_S12 )
{
if ( statement -> interupted_func != SQL_API_SQLDESCRIBECOL )
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: HY010" );
__post_internal_error( &statement -> error,
ERROR_HY010, NULL,
statement -> connection -> environment -> requested_version );
thread_release( SQL_HANDLE_STMT, statement );
return function_return( statement, SQL_ERROR );
}
}
if ( statement -> connection -> unicode_driver )
{
if ( !CHECK_SQLDESCRIBECOLW( statement -> connection ))
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: IM001" );
__post_internal_error( &statement -> error,
ERROR_IM001, NULL,
statement -> connection -> environment -> requested_version );
thread_release( SQL_HANDLE_STMT, statement );
return function_return( statement, SQL_ERROR );
}
ret = SQLDESCRIBECOLW( statement -> connection,
statement -> driver_stmt,
column_number,
column_name,
buffer_length,
name_length,
data_type,
column_size,
decimal_digits,
nullable );
unicode_to_ansi((SQLWCHAR*) column_name, SQL_NTS );
}
else
{
if ( !CHECK_SQLDESCRIBECOL( statement -> connection ))
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: IM001" );
__post_internal_error( &statement -> error,
ERROR_IM001, NULL,
statement -> connection -> environment -> requested_version );
thread_release( SQL_HANDLE_STMT, statement );
return function_return( statement, SQL_ERROR );
}
ret = SQLDESCRIBECOL( statement -> connection,
statement -> driver_stmt,
column_number,
column_name,
buffer_length,
name_length,
data_type,
column_size,
decimal_digits,
nullable );
}
if ( (ret == SQL_SUCCESS || ret == SQL_SUCCESS_WITH_INFO) && data_type )
{
*data_type=__map_type(MAP_SQL_D2DM,statement->connection, *data_type);
}
if ( ret == SQL_STILL_EXECUTING )
{
statement -> interupted_func = SQL_API_SQLDESCRIBECOL;
if ( statement -> state != STATE_S11 &&
statement -> state != STATE_S12 )
statement -> state = STATE_S11;
}
if ( log_info.log_flag )
{
sprintf( statement -> msg,
"\n\t\tExit:[%s]\
\n\t\t\tColumn Name = %s\
\n\t\t\tData Type = %s\
\n\t\t\tColumn Size = %s\
\n\t\t\tDecimal Digits = %s\
\n\t\t\tNullable = %s",
__get_return_status( ret ),
__sdata_as_string( s1, SQL_CHAR,
name_length, column_name ),
__sptr_as_string( s2, data_type ),
__ptr_as_string( s3, (void*)column_size ),
__sptr_as_string( s4, decimal_digits ),
__sptr_as_string( s5, nullable ));
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
statement -> msg );
}
thread_release( SQL_HANDLE_STMT, statement );
return function_return( statement, ret );
}
|
