openkylin
/
unixodbc
mirror of https://gitee.com/openkylin/unixodbc.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity
unixodbc/DriverManager/SQLColumns.c

434 lines
13 KiB
C
Raw Permalink Normal View History

Import Upstream version 2.3.6
2022-05-14 03:13:26 +08:00
/*********************************************************************
*
* This is based on code created by Peter Harvey,
* (pharvey@codebydesign.com).
*
* Modified and extended by Nick Gorham
* (nick@lurcher.org).
*
* 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: SQLColumns.c,v 1.8 2009/02/18 17:59:08 lurcher Exp $
*
* $Log: SQLColumns.c,v $
* Revision 1.8 2009/02/18 17:59:08 lurcher
* Shift to using config.h, the compile lines were making it hard to spot warnings
*
* Revision 1.7 2008/08/29 08:01:38 lurcher
* Alter the way W functions are passed to the driver
*
* Revision 1.6 2004/01/12 09:54:39 lurcher
*
* Fix problem where STATE_S5 stops metadata calls
*
* Revision 1.5 2003/10/30 18:20:45 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 1.4 2003/02/27 12:19:39 lurcher
*
* Add the A functions as well as the W
*
* Revision 1.3 2002/12/05 17:44:30 lurcher
*
* Display unknown return values in return logging
*
* Revision 1.2 2002/07/24 08:49:51 lurcher
*
* Alter UNICODE support to use iconv for UNICODE-ANSI conversion
*
* Revision 1.1.1.1 2001/10/17 16:40:05 lurcher
*
* First upload to SourceForge
*
* 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 17:43:35 nick
*
* Change logging and added autotest to odbctest
*
* 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 1.9 2000/06/20 12:43:58 ngorham
*
* Fix bug that caused a success with info message from SQLExecute or
* SQLExecDirect to be lost if used with a ODBC 3 driver and the application
* called SQLGetDiagRec
*
* Revision 1.8 2000/06/16 16:52:16 ngorham
*
* Stop info messages being lost when calling SQLExecute etc on ODBC 3
* drivers, the SQLNumResultCols were clearing the error before
* function return had a chance to get to them
*
* Revision 1.7 1999/11/13 23:40:58 ngorham
*
* Alter the way DM logging works
* Upgrade the Postgres driver to 6.4.6
*
* Revision 1.6 1999/10/24 23:54:17 ngorham
*
* First part of the changes to the error reporting
*
* 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 21:10:15 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 1.2 1999/06/07 01:29:30 pharvey
* *** empty log message ***
*
* 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 20:47:37 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: SQLColumns.c,v $ $Revision: 1.8 $";
SQLRETURN SQLColumnsA( SQLHSTMT statement_handle,
SQLCHAR *catalog_name,
SQLSMALLINT name_length1,
SQLCHAR *schema_name,
SQLSMALLINT name_length2,
SQLCHAR *table_name,
SQLSMALLINT name_length3,
SQLCHAR *column_name,
SQLSMALLINT name_length4 )
{
return SQLColumns( statement_handle,
catalog_name,
name_length1,
schema_name,
name_length2,
table_name,
name_length3,
column_name,
name_length4 );
}
SQLRETURN SQLColumns( SQLHSTMT statement_handle,
SQLCHAR *catalog_name,
SQLSMALLINT name_length1,
SQLCHAR *schema_name,
SQLSMALLINT name_length2,
SQLCHAR *table_name,
SQLSMALLINT name_length3,
SQLCHAR *column_name,
SQLSMALLINT name_length4 )
{
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 ];
/*
* 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\tCatalog Name = %s\
\n\t\t\tSchema Name = %s\
\n\t\t\tTable Name = %s\
\n\t\t\tColumn Name = %s",
statement,
__string_with_length( s1, catalog_name, name_length1 ),
__string_with_length( s2, schema_name, name_length2 ),
__string_with_length( s3, table_name, name_length3 ),
__string_with_length( s4, column_name, name_length4 ));
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
statement -> msg );
}
thread_protect( SQL_HANDLE_STMT, statement );
if (( catalog_name && name_length1 < 0 && name_length1 != SQL_NTS ) ||
( schema_name && name_length2 < 0 && name_length2 != SQL_NTS ) ||
( table_name && name_length3 < 0 && name_length3 != SQL_NTS ) ||
( column_name && name_length4 < 0 && name_length4 != SQL_NTS ))
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: HY090" );
__post_internal_error( &statement -> error,
ERROR_HY090, NULL,
statement -> connection -> environment -> requested_version );
return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
}
/*
* check states
*/
#ifdef NR_PROBE
if ( statement -> state == STATE_S5 ||
statement -> state == STATE_S6 ||
statement -> state == STATE_S7 )
#else
if (( statement -> state == STATE_S6 && statement -> eod == 0 ) ||
statement -> state == STATE_S7 )
#endif
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: 24000" );
__post_internal_error( &statement -> error,
ERROR_24000, NULL,
statement -> connection -> environment -> requested_version );
return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
}
else if ( statement -> state == STATE_S8 ||
statement -> state == STATE_S9 ||
statement -> state == STATE_S10 ||
statement -> state == STATE_S13 ||
statement -> state == STATE_S14 ||
statement -> state == STATE_S15 )
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: HY010" );
__post_internal_error( &statement -> error,
ERROR_HY010, NULL,
statement -> connection -> environment -> requested_version );
return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
}
if ( statement -> state == STATE_S11 ||
statement -> state == STATE_S12 )
{
if ( statement -> interupted_func != SQL_API_SQLCOLUMNS )
{
__post_internal_error( &statement -> error,
ERROR_HY010, NULL,
statement -> connection -> environment -> requested_version );
return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
}
}
/*
* TO_DO Check the SQL_ATTR_METADATA_ID settings
*/
if ( statement -> connection -> unicode_driver )
{
SQLWCHAR *s1, *s2, *s3, *s4;
int wlen;
if ( !CHECK_SQLCOLUMNSW( 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 );
return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
}
s1 = ansi_to_unicode_alloc( catalog_name, name_length1, statement -> connection, &wlen );
name_length1 = wlen;
s2 = ansi_to_unicode_alloc( schema_name, name_length2, statement -> connection, &wlen );
name_length2 = wlen;
s3 = ansi_to_unicode_alloc( table_name, name_length3, statement -> connection, &wlen );
name_length3 = wlen;
s4 = ansi_to_unicode_alloc( column_name, name_length4, statement -> connection, &wlen );
name_length4 = wlen;
ret = SQLCOLUMNSW( statement -> connection ,
statement -> driver_stmt,
s1,
name_length1,
s2,
name_length2,
s3,
name_length3,
s4,
name_length4 );
if( s1 )
free( s1 );
if( s2 )
free( s2 );
if( s3 )
free( s3 );
if( s4 )
free( s4 );
}
else
{
if ( !CHECK_SQLCOLUMNS( 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 );
return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
}
ret = SQLCOLUMNS( statement -> connection ,
statement -> driver_stmt,
catalog_name,
name_length1,
schema_name,
name_length2,
table_name,
name_length3,
column_name,
name_length4 );
}
if ( SQL_SUCCEEDED( ret ))
{
#ifdef NR_PROBE
/********
* Added this to get num cols from drivers which can only tell
* us after execute - PAH
*/
/*
* grab any errors
*/
if ( ret == SQL_SUCCESS_WITH_INFO )
{
function_return_ex( IGNORE_THREAD, statement, ret, TRUE );
}
SQLNUMRESULTCOLS( statement -> connection,
statement -> driver_stmt, &statement -> numcols );
/******/
#endif
statement -> state = STATE_S5;
statement -> hascols = 1;
statement -> prepared = 0;
}
else if ( ret == SQL_STILL_EXECUTING )
{
statement -> interupted_func = SQL_API_SQLCOLUMNS;
if ( statement -> state != STATE_S11 &&
statement -> state != STATE_S12 )
statement -> state = STATE_S11;
}
else
{
statement -> state = STATE_S1;
}
if ( log_info.log_flag )
{
sprintf( statement -> msg,
"\n\t\tExit:[%s]",
__get_return_status( ret, s1 ));
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
statement -> msg );
}
return function_return( SQL_HANDLE_STMT, statement, ret );
}