unixodbc/DriverManager/SQLGetConnectAttrW.c

763 lines
22 KiB
C

/*********************************************************************
*
* 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: SQLGetConnectAttrW.c,v 1.14 2009/02/18 17:59:08 lurcher Exp $
*
* $Log: SQLGetConnectAttrW.c,v $
* Revision 1.14 2009/02/18 17:59:08 lurcher
* Shift to using config.h, the compile lines were making it hard to spot warnings
*
* Revision 1.13 2009/02/17 09:47:44 lurcher
* Clear up a number of bugs
*
* Revision 1.12 2008/08/29 08:01:38 lurcher
* Alter the way W functions are passed to the driver
*
* Revision 1.11 2004/11/22 17:02:48 lurcher
* Fix unicode/ansi conversion in the SQLGet functions
*
* Revision 1.10 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 1.9 2002/12/05 17:44:30 lurcher
*
* Display unknown return values in return logging
*
* Revision 1.8 2002/11/11 17:10:10 lurcher
*
* VMS changes
*
* Revision 1.7 2002/08/23 09:42:37 lurcher
*
* Fix some build warnings with casts, and a AIX linker mod, to include
* deplib's on the link line, but not the libtool generated ones
*
* Revision 1.6 2002/08/12 13:17:52 lurcher
*
* Replicate the way the MS DM handles loading of driver libs, and allocating
* handles in the driver. usage counting in the driver means that dlopen is
* only called for the first use, and dlclose for the last. AllocHandle for
* the driver environment is only called for the first time per driver
* per application environment.
*
* Revision 1.5 2002/07/24 08:49:52 lurcher
*
* Alter UNICODE support to use iconv for UNICODE-ANSI conversion
*
* Revision 1.4 2002/07/16 13:08:18 lurcher
*
* Filter attribute values from SQLSetStmtAttr to SQLSetStmtOption to fit
* within ODBC 2
* Make DSN's double clickable in ODBCConfig
*
* Revision 1.3 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 1.2 2001/12/04 16:46:19 lurcher
*
* Allow the Unix Domain Socket to be set from the ini file (DSN)
* Make the DataManager browser work with drivers that don't support
* SQLRowCount
* Make the directory selection from odbctest work simplier
*
* Revision 1.1.1.1 2001/10/17 16:40:05 lurcher
*
* First upload to SourceForge
*
* Revision 1.4 2001/08/03 15:19:00 nick
*
* Add changes to set values before connect
*
* Revision 1.3 2001/07/03 09:30:41 nick
*
* Add ability to alter size of displayed message in the log
*
* Revision 1.2 2001/04/12 17:43:36 nick
*
* Change logging and added autotest to odbctest
*
* Revision 1.1 2000/12/31 20:30:54 nick
*
* Add UNICODE support
*
*
**********************************************************************/
#include <config.h>
#include "drivermanager.h"
static char const rcsid[]= "$RCSfile: SQLGetConnectAttrW.c,v $";
SQLRETURN SQLGetConnectAttrW( SQLHDBC connection_handle,
SQLINTEGER attribute,
SQLPOINTER value,
SQLINTEGER buffer_length,
SQLINTEGER *string_length )
{
DMHDBC connection = (DMHDBC)connection_handle;
int type = 0;
char *ptr;
SQLCHAR s1[ 100 + LOG_MESSAGE_LEN ];
/*
* doesn't require a handle
*/
if ( attribute == SQL_ATTR_TRACE )
{
if ( value )
{
if ( log_info.log_flag )
{
*((SQLINTEGER*)value) = SQL_OPT_TRACE_ON;
}
else
{
*((SQLINTEGER*)value) = SQL_OPT_TRACE_OFF;
}
}
return SQL_SUCCESS;
}
else if ( attribute == SQL_ATTR_TRACEFILE )
{
SQLRETURN ret = SQL_SUCCESS;
ptr = log_info.log_file_name;
if ( ptr )
{
int len = strlen( ptr ) * sizeof( SQLWCHAR );
if ( string_length )
{
*string_length = len;
}
if ( value )
{
if ( buffer_length > len + sizeof( SQLWCHAR ))
{
ansi_to_unicode_copy( value, ptr, SQL_NTS, connection, NULL );
}
else
{
ansi_to_unicode_copy( value, ptr, buffer_length - 1, connection, NULL );
((SQLWCHAR*)value)[( buffer_length - 1 ) / sizeof( SQLWCHAR )] = 0;
ret = SQL_SUCCESS_WITH_INFO;
}
}
}
else
{
if ( string_length )
{
*string_length = 0;
}
if ( value )
{
if ( buffer_length > 0 )
{
((SQLWCHAR*)value)[ 0 ] = 0;
}
else
{
ret = SQL_SUCCESS_WITH_INFO;
}
}
}
return ret;
}
/*
* check connection
*/
if ( !__validate_dbc( connection ))
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: SQL_INVALID_HANDLE" );
return SQL_INVALID_HANDLE;
}
function_entry( connection );
if ( log_info.log_flag )
{
sprintf( connection -> msg, "\n\t\tEntry:\
\n\t\t\tConnection = %p\
\n\t\t\tAttribute = %s\
\n\t\t\tValue = %p\
\n\t\t\tBuffer Length = %d\
\n\t\t\tStrLen = %p",
connection,
__con_attr_as_string( s1, attribute ),
value,
(int)buffer_length,
(void*)string_length );
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
connection -> msg );
}
thread_protect( SQL_HANDLE_DBC, connection );
if ( connection -> state == STATE_C3 )
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: HY010" );
__post_internal_error( &connection -> error,
ERROR_HY010, NULL,
connection -> environment -> requested_version );
return function_return_nodrv( SQL_HANDLE_DBC, connection, SQL_ERROR );
}
if ( connection -> state == STATE_C2 )
{
switch ( attribute )
{
case SQL_ATTR_ACCESS_MODE:
case SQL_ATTR_AUTOCOMMIT:
case SQL_ATTR_LOGIN_TIMEOUT:
case SQL_ATTR_ODBC_CURSORS:
case SQL_ATTR_TRACE:
case SQL_ATTR_TRACEFILE:
case SQL_ATTR_ASYNC_ENABLE:
break;
case SQL_ATTR_PACKET_SIZE:
if ( connection -> packet_size_set )
break;
case SQL_ATTR_QUIET_MODE:
if ( connection -> quite_mode_set )
break;
default:
{
struct save_attr *sa = connection -> save_attr;
while (sa)
{
if (sa -> attr_type == attribute)
{
SQLRETURN rc = SQL_SUCCESS;
if (sa -> str_len == SQL_NTS || sa -> str_len > 0)
{
SQLLEN realLen = sa->str_attr ? strlen(sa->str_attr) : 0;
if(value && sa->str_attr)
{
strncpy(value, sa->str_attr, buffer_length - 1);
((SQLCHAR*)value)[buffer_length - 1] = 0;
}
if(string_length)
{
*string_length = realLen;
}
if(realLen > buffer_length - 1)
{
__post_internal_error( &connection -> error,
ERROR_01004, NULL,
connection -> environment -> requested_version );
rc = SQL_SUCCESS_WITH_INFO;
}
}
else if(buffer_length >= sizeof(SQLLEN))
{
*(SQLLEN*)value = sa -> int_attr;
if(string_length)
{
*string_length = sizeof(SQLLEN);
}
}
else
{
memcpy(value, &sa->int_attr, buffer_length);
}
return function_return_nodrv( SQL_HANDLE_DBC, connection, rc );
}
sa = sa -> next;
}
}
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: 08003" );
__post_internal_error( &connection -> error,
ERROR_08003, NULL,
connection -> environment -> requested_version );
return function_return_nodrv( SQL_HANDLE_DBC, connection, SQL_ERROR );
}
}
switch ( attribute )
{
case SQL_ATTR_ACCESS_MODE:
/*
* if connected, call the driver
*/
if ( connection -> state != STATE_C2 )
{
type = 0;
}
else
{
*((SQLINTEGER*)value) = connection -> access_mode;
type = 1;
}
break;
case SQL_ATTR_AUTOCOMMIT:
/*
* if connected, call the driver
*/
if ( connection -> state != STATE_C2 )
{
type = 0;
}
else
{
*((SQLINTEGER*)value) = connection -> auto_commit;
type = 1;
}
break;
case SQL_ATTR_LOGIN_TIMEOUT:
/*
* if connected, call the driver
*/
if ( connection -> state != STATE_C2 )
{
type = 0;
}
else
{
*((SQLINTEGER*)value) = connection -> login_timeout;
type = 1;
}
break;
case SQL_ATTR_ODBC_CURSORS:
*((SQLULEN*)value) = connection -> cursors;
type = 1;
break;
case SQL_ATTR_TRACE:
*((SQLINTEGER*)value) = connection -> trace;
type = 1;
break;
case SQL_ATTR_TRACEFILE:
ptr = connection -> tracefile;
type = 2;
break;
case SQL_ATTR_ASYNC_ENABLE:
/*
* if connected, call the driver
*/
if ( connection -> state != STATE_C2 )
{
type = 0;
}
else
{
*((SQLULEN*)value) = connection -> async_enable;
type = 1;
}
break;
case SQL_ATTR_AUTO_IPD:
/*
* if connected, call the driver
*/
if ( connection -> state != STATE_C2 )
{
type = 0;
}
else
{
*((SQLINTEGER*)value) = connection -> auto_ipd;
type = 1;
}
break;
case SQL_ATTR_CONNECTION_TIMEOUT:
/*
* if connected, call the driver
*/
if ( connection -> state != STATE_C2 )
{
type = 0;
}
else
{
*((SQLINTEGER*)value) = connection -> connection_timeout;
type = 1;
}
break;
case SQL_ATTR_METADATA_ID:
/*
* if connected, call the driver
*/
if ( connection -> state != STATE_C2 )
{
type = 0;
}
else
{
*((SQLINTEGER*)value) = connection -> metadata_id;
type = 1;
}
break;
case SQL_ATTR_PACKET_SIZE:
/*
* if connected, call the driver
*/
if ( connection -> state != STATE_C2 )
{
type = 0;
}
else
{
*((SQLINTEGER*)value) = connection -> packet_size;
type = 1;
}
break;
case SQL_ATTR_QUIET_MODE:
/*
* if connected, call the driver
*/
if ( connection -> state != STATE_C2 )
{
type = 0;
}
else
{
*((SQLINTEGER*)value) = connection -> quite_mode;
type = 1;
}
break;
case SQL_ATTR_TXN_ISOLATION:
/*
* if connected, call the driver
*/
if ( connection -> state != STATE_C2 )
{
type = 0;
}
else
{
*((SQLINTEGER*)value) = connection -> txn_isolation;
type = 1;
}
break;
default:
break;
}
/*
* if type has been set we have already set the value,
* so just return
*/
if ( type )
{
SQLRETURN ret = SQL_SUCCESS;
if ( type == 1 )
{
if ( string_length )
{
*string_length = sizeof( SQLUINTEGER );
}
}
else
{
if ( string_length )
{
*string_length = strlen( ptr );
}
if ( value )
{
if ( buffer_length > strlen( ptr ) + 1 )
{
strcpy( value, ptr );
}
else
{
memcpy( value, ptr, buffer_length - 1 );
((char*)value)[ buffer_length - 1 ] = '\0';
ret = SQL_SUCCESS_WITH_INFO;
}
}
}
sprintf( connection -> msg,
"\n\t\tExit:[%s]",
__get_return_status( ret, s1 ));
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
connection -> msg );
return function_return_nodrv( SQL_HANDLE_DBC, connection, ret );
}
else
{
SQLRETURN ret = 0;
/*
* call the driver
*/
if ( connection -> unicode_driver ||
CHECK_SQLGETCONNECTATTRW( connection ) ||
CHECK_SQLGETCONNECTOPTIONW( connection ))
{
if ( !CHECK_SQLGETCONNECTATTRW( connection ))
{
if ( CHECK_SQLGETCONNECTOPTIONW( connection ))
{
/*
* Is it in the legal range of values
*/
if ( attribute < SQL_CONN_DRIVER_MIN &&
( attribute > SQL_PACKET_SIZE || attribute < SQL_ACCESS_MODE ))
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: HY092" );
__post_internal_error( &connection -> error,
ERROR_HY092, NULL,
connection -> environment -> requested_version );
return function_return_nodrv( SQL_HANDLE_DBC, connection, SQL_ERROR );
}
ret = SQLGETCONNECTOPTIONW( connection,
connection -> driver_dbc,
attribute,
value );
}
else
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: IM001" );
__post_internal_error( &connection -> error,
ERROR_IM001, NULL,
connection -> environment -> requested_version );
return function_return_nodrv( SQL_HANDLE_DBC, connection, SQL_ERROR );
}
}
else
{
ret = SQLGETCONNECTATTRW( connection,
connection -> driver_dbc,
attribute,
value,
buffer_length,
string_length );
}
}
else
{
if ( !CHECK_SQLGETCONNECTATTR( connection ))
{
if (( ret = CHECK_SQLGETCONNECTOPTION( connection )))
{
SQLCHAR *as1 = NULL;
/*
* Is it in the legal range of values
*/
if ( attribute < SQL_CONN_DRIVER_MIN &&
( attribute > SQL_PACKET_SIZE || attribute < SQL_ACCESS_MODE ))
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: HY092" );
__post_internal_error( &connection -> error,
ERROR_HY092, NULL,
connection -> environment -> requested_version );
return function_return_nodrv( SQL_HANDLE_DBC, connection, SQL_ERROR );
}
switch( attribute )
{
case SQL_ATTR_CURRENT_CATALOG:
case SQL_ATTR_TRACEFILE:
case SQL_ATTR_TRANSLATE_LIB:
if ( SQL_SUCCEEDED( ret ) && value && buffer_length > 0 )
{
as1 = malloc( buffer_length + 1 );
}
break;
}
ret = SQLGETCONNECTOPTION( connection,
connection -> driver_dbc,
attribute,
as1 ? as1 : value );
switch( attribute )
{
case SQL_ATTR_CURRENT_CATALOG:
case SQL_ATTR_TRACEFILE:
case SQL_ATTR_TRANSLATE_LIB:
if ( SQL_SUCCEEDED( ret ) && value && buffer_length > 0 && as1 )
{
ansi_to_unicode_copy( value, (char*) as1, SQL_NTS, connection, NULL );
}
if ( as1 )
{
free( as1 );
}
if ( SQL_SUCCEEDED( ret ) && string_length )
{
*string_length *= sizeof( SQLWCHAR );
}
break;
}
}
else
{
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
"Error: IM001" );
__post_internal_error( &connection -> error,
ERROR_IM001, NULL,
connection -> environment -> requested_version );
return function_return_nodrv( SQL_HANDLE_DBC, connection, SQL_ERROR );
}
}
else
{
SQLCHAR *as1 = NULL;
switch( attribute )
{
case SQL_ATTR_CURRENT_CATALOG:
case SQL_ATTR_TRACEFILE:
case SQL_ATTR_TRANSLATE_LIB:
buffer_length = buffer_length / 2;
if ( buffer_length > 0 )
{
as1 = malloc( buffer_length + 1 );
}
break;
}
ret = SQLGETCONNECTATTR( connection,
connection -> driver_dbc,
attribute,
as1 ? as1 : value,
buffer_length,
string_length );
switch( attribute )
{
case SQL_ATTR_CURRENT_CATALOG:
case SQL_ATTR_TRACEFILE:
case SQL_ATTR_TRANSLATE_LIB:
if ( SQL_SUCCEEDED( ret ) && value && buffer_length > 0 && as1 )
{
ansi_to_unicode_copy( value, (char*)as1, SQL_NTS, connection, NULL );
}
if ( as1 )
{
free( as1 );
}
if ( SQL_SUCCEEDED( ret ) && string_length )
{
*string_length *= sizeof( SQLWCHAR );
}
break;
}
}
}
if ( log_info.log_flag )
{
sprintf( connection -> msg,
"\n\t\tExit:[%s]",
__get_return_status( ret, s1 ));
dm_log_write( __FILE__,
__LINE__,
LOG_INFO,
LOG_INFO,
connection -> msg );
}
return function_return( SQL_HANDLE_DBC, connection, ret );
}
}