-/*
- * Copyright 1999, Dmitry Kovalev <mit@openldap.org>, All rights reserved.
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1999-2004 The OpenLDAP Foundation.
+ * Portions Copyright 1999 Dmitry Kovalev.
+ * All rights reserved.
*
- * Redistribution and use in source and binary forms are permitted only
- * as authorized by the OpenLDAP Public License. A copy of this
- * license is available at http://www.OpenLDAP.org/license.html or
- * in file LICENSE in the top-level directory of the distribution.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by Dmitry Kovalev for inclusion
+ * by OpenLDAP Software.
*/
#include "portable.h"
#include <stdio.h>
#include "ac/string.h"
#include <sys/types.h>
-#include "ldap_pvt.h"
#include "slap.h"
+#include "ldap_pvt.h"
#include "back-sql.h"
#include "sql-types.h"
#include "sql-wrap.h"
SQLHDBC dbh;
} backsql_db_conn;
-int backsql_dummy( void *, void * );
-
void
backsql_PrintErrors( SQLHENV henv, SQLHDBC hdbc, SQLHSTMT sth, int rc )
{
return rc;
}
-#if 0
- Debug( LDAP_DEBUG_TRACE, "==>_SQLPrepare()\n", 0, 0, 0 );
-#endif
+#ifdef BACKSQL_TRACE
+ Debug( LDAP_DEBUG_TRACE, "==>backsql_Prepare()\n", 0, 0, 0 );
+#endif /* BACKSQL_TRACE */
- SQLGetInfo( dbh, SQL_DRIVER_NAME, drv_name, 30, &len );
+ SQLGetInfo( dbh, SQL_DRIVER_NAME, drv_name, sizeof( drv_name ), &len );
-#if 0
- Debug( LDAP_DEBUG_TRACE, "_SQLPrepare(): driver name='%s'\n",
+#ifdef BACKSQL_TRACE
+ Debug( LDAP_DEBUG_TRACE, "backsql_Prepare(): driver name='%s'\n",
drv_name, 0, 0 );
-#endif
-
- if ( !strncmp( ldap_pvt_str2upper( drv_name ), "SQLSRV32.DLL", 30 ) ) {
+#endif /* BACKSQL_TRACE */
+
+ ldap_pvt_str2upper( drv_name );
+ if ( !strncmp( drv_name, "SQLSRV32.DLL", sizeof( drv_name ) ) ) {
/*
* stupid default result set in MS SQL Server
* does not support multiple active statements
rc = SQLSetStmtOption( *sth, SQL_CONCURRENCY,
SQL_CONCUR_ROWVER );
if ( rc != SQL_SUCCESS && rc != SQL_SUCCESS_WITH_INFO ) {
- Debug( LDAP_DEBUG_TRACE, "_SQLPrepare(): "
- "SQLSetStmtOption(SQL_CONCURRENCY,SQL_CONCUR_ROWVER) failed:\n",
+ Debug( LDAP_DEBUG_TRACE, "backsql_Prepare(): "
+ "SQLSetStmtOption(SQL_CONCURRENCY,"
+ "SQL_CONCUR_ROWVER) failed:\n",
0, 0, 0 );
backsql_PrintErrors( SQL_NULL_HENV, dbh, *sth, rc );
}
}
}
-#if 0
- Debug( LDAP_DEBUG_TRACE, "<==_SQLPrepare() calling SQLPrepare()\n",
+#ifdef BACKSQL_TRACE
+ Debug( LDAP_DEBUG_TRACE, "<==backsql_Prepare() calling SQLPrepare()\n",
0, 0, 0 );
-#endif
+#endif /* BACKSQL_TRACE */
return SQLPrepare( *sth, query, SQL_NTS );
}
#if 0
+/*
+ * Turned into macros --- see sql-wrap.h
+ */
RETCODE
backsql_BindParamStr( SQLHSTMT sth, int par_ind, char *str, int maxlen )
{
return SQL_ERROR;
}
-#if 0
+#ifdef BACKSQL_TRACE
Debug( LDAP_DEBUG_TRACE, "==> backsql_BindRowAsStrings()\n", 0, 0, 0 );
-#endif
+#endif /* BACKSQL_TRACE */
rc = SQLNumResultCols( sth, &row->ncols );
if ( rc != SQL_SUCCESS ) {
-#if 0
- Debug( LDAP_DEBUG_TRACE, "_SQLBindRowAsStrings(): "
+#ifdef BACKSQL_TRACE
+ Debug( LDAP_DEBUG_TRACE, "backsql_BindRowAsStrings(): "
"SQLNumResultCols() failed:\n", 0, 0, 0 );
-#endif
+#endif /* BACKSQL_TRACE */
backsql_PrintErrors( SQL_NULL_HENV, SQL_NULL_HDBC, sth, rc );
} else {
-#if 0
+#ifdef BACKSQL_TRACE
Debug( LDAP_DEBUG_TRACE, "backsql_BindRowAsStrings: "
"ncols=%d\n", (int)row->ncols, 0, 0 );
-#endif
+#endif /* BACKSQL_TRACE */
- row->col_names = (char **)ch_calloc( row->ncols,
+ row->col_names = (BerVarray)ch_calloc( row->ncols + 1,
+ sizeof( struct berval ) );
+ row->cols = (char **)ch_calloc( row->ncols + 1,
sizeof( char * ) );
- row->cols = (char **)ch_calloc( row->ncols, sizeof( char * ) );
row->col_prec = (UDWORD *)ch_calloc( row->ncols,
sizeof( UDWORD ) );
- row->is_null = (SQLINTEGER *)ch_calloc( row->ncols,
+ row->value_len = (SQLINTEGER *)ch_calloc( row->ncols,
sizeof( SQLINTEGER ) );
for ( i = 1; i <= row->ncols; i++ ) {
rc = SQLDescribeCol( sth, (SQLSMALLINT)i, &colname[ 0 ],
- (SQLUINTEGER)sizeof( colname ) - 1,
+ (SQLUINTEGER)( sizeof( colname ) - 1 ),
&name_len, &col_type,
&col_prec, &col_scale, &col_null );
- row->col_names[ i - 1 ] = ch_strdup( colname );
-#if 0
+ ber_str2bv( colname, 0, 1, &row->col_names[ i - 1 ] );
+#ifdef BACKSQL_TRACE
Debug( LDAP_DEBUG_TRACE, "backsql_BindRowAsStrings: "
"col_name=%s, col_prec[%d]=%d\n",
colname, (int)i, (int)col_prec );
-#endif
+#endif /* BACKSQL_TRACE */
if ( col_type == SQL_LONGVARCHAR
|| col_type == SQL_LONGVARBINARY) {
#if 0
SQL_C_CHAR,
(SQLPOINTER)row->cols[ i - 1 ],
col_prec + 1,
- &row->is_null[ i - 1 ] );
+ &row->value_len[ i - 1 ] );
} else {
row->cols[ i - 1 ] = (char *)ch_calloc( col_prec + 1, sizeof( char ) );
row->col_prec[ i - 1 ] = col_prec;
SQL_C_CHAR,
(SQLPOINTER)row->cols[ i - 1 ],
col_prec + 1,
- &row->is_null[ i - 1 ] );
+ &row->value_len[ i - 1 ] );
}
}
+
+ row->col_names[ i - 1 ].bv_val = NULL;
+ row->col_names[ i - 1 ].bv_len = 0;
+ row->cols[ i - 1 ] = NULL;
}
-#if 0
+
+#ifdef BACKSQL_TRACE
Debug( LDAP_DEBUG_TRACE, "<== backsql_BindRowAsStrings()\n", 0, 0, 0 );
-#endif
+#endif /* BACKSQL_TRACE */
return rc;
}
RETCODE
backsql_FreeRow( BACKSQL_ROW_NTS *row )
{
- int i;
-
if ( row->cols == NULL ) {
return SQL_ERROR;
}
- for ( i = 0; i < row->ncols; i++ ) {
- /*
- * FIXME: we need to free the col_names as well, don't we?
- */
- free( row->cols[ i ] );
- }
-
- free( row->col_names );
+ ber_bvarray_free( row->col_names );
+ ldap_charray_free( row->cols );
free( row->col_prec );
- free( row->cols );
- free( row->is_null );
+ free( row->value_len );
return SQL_SUCCESS;
}
-int
-backsql_cmp_connid( backsql_db_conn *c1, backsql_db_conn *c2 )
+static int
+backsql_cmp_connid( const void *v_c1, const void *v_c2 )
{
+ const backsql_db_conn *c1 = v_c1, *c2 = v_c2;
if ( c1->ldap_cid > c2->ldap_cid ) {
return 1;
}
return 0;
}
-int
+static int
backsql_close_db_conn( backsql_db_conn *conn )
{
Debug( LDAP_DEBUG_TRACE, "==>backsql_close_db_conn()\n", 0, 0, 0 );
+ /*
+ * Default transact is SQL_ROLLBACK; commit is required only
+ * by write operations, and it is explicitly performed after
+ * each atomic operation succeeds.
+ */
+
/* TimesTen */
- SQLTransact( SQL_NULL_HENV, conn->dbh, SQL_COMMIT );
+ SQLTransact( SQL_NULL_HENV, conn->dbh, SQL_ROLLBACK );
SQLDisconnect( conn->dbh );
SQLFreeConnect( conn->dbh );
Debug( LDAP_DEBUG_TRACE, "<==backsql_close_db_conn()\n", 0, 0, 0 );
backsql_free_db_env( backsql_info *si )
{
Debug( LDAP_DEBUG_TRACE, "==>backsql_free_db_env()\n", 0, 0, 0 );
-#if 0
+
+#ifdef BACKSQL_TRACE
Debug( LDAP_DEBUG_TRACE, "free_db_env(): delete AVL tree here!!!\n",
0, 0, 0 );
-#endif
+#endif /* BACKSQL_TRACE */
/*
* stop, if frontend waits for all threads to shutdown
return SQL_SUCCESS;
}
-backsql_db_conn *
-backsql_open_db_conn( backsql_info *si, int ldap_cid )
+static int
+backsql_open_db_conn( backsql_info *si, int ldap_cid, backsql_db_conn **pdbc )
{
/* TimesTen */
char DBMSName[ 32 ];
backsql_db_conn *dbc;
int rc;
+
+ assert( pdbc );
+ *pdbc = NULL;
Debug( LDAP_DEBUG_TRACE, "==>backsql_open_db_conn()\n", 0, 0, 0 );
dbc = (backsql_db_conn *)ch_calloc( 1, sizeof( backsql_db_conn ) );
dbc->ldap_cid = ldap_cid;
rc = SQLAllocConnect( si->db_env, &dbc->dbh );
- if (!BACKSQL_SUCCESS( rc ) ) {
+ if ( !BACKSQL_SUCCESS( rc ) ) {
Debug( LDAP_DEBUG_TRACE, "backsql_open_db_conn: "
"SQLAllocConnect() failed:\n", 0, 0, 0 );
backsql_PrintErrors( si->db_env, SQL_NULL_HDBC,
SQL_NULL_HENV, rc );
- return NULL;
+ return LDAP_UNAVAILABLE;
}
rc = SQLConnect( dbc->dbh, si->dbname, SQL_NTS, si->dbuser,
"succeeded with info" : "failed" );
backsql_PrintErrors( si->db_env, dbc->dbh, SQL_NULL_HENV, rc );
if ( rc != SQL_SUCCESS_WITH_INFO ) {
- return NULL;
+ return LDAP_UNAVAILABLE;
}
}
* See if this connection is to TimesTen. If it is,
* remember that fact for later use.
*/
- si->isTimesTen = 0; /* Assume until proven otherwise */
+ /* Assume until proven otherwise */
+ si->bsql_flags &= ~BSQLF_USE_REVERSE_DN;
DBMSName[ 0 ] = '\0';
rc = SQLGetInfo( dbc->dbh, SQL_DBMS_NAME, (PTR)&DBMSName,
sizeof( DBMSName ), NULL );
strcmp( DBMSName, "Front-Tier" ) == 0 ) {
Debug( LDAP_DEBUG_TRACE, "backsql_open_db_conn: "
"TimesTen database!\n", 0, 0, 0 );
- si->isTimesTen = 1;
+ si->bsql_flags |= BSQLF_USE_REVERSE_DN;
}
} else {
Debug( LDAP_DEBUG_TRACE, "backsql_open_db_conn: "
"SQLGetInfo() failed:\n", 0, 0, 0 );
backsql_PrintErrors( si->db_env, dbc->dbh, SQL_NULL_HENV, rc );
+ return rc;
}
/* end TimesTen */
Debug( LDAP_DEBUG_TRACE, "backsql_open_db_conn(): "
"connected, adding to tree\n", 0, 0, 0 );
ldap_pvt_thread_mutex_lock( &si->dbconn_mutex );
- avl_insert( &si->db_conns, dbc, (AVL_CMP)backsql_cmp_connid,
- backsql_dummy );
+ if ( avl_insert( &si->db_conns, dbc, backsql_cmp_connid, avl_dup_error ) ) {
+ Debug( LDAP_DEBUG_TRACE, "backsql_open_db_conn: "
+ "duplicate connection ID\n", 0, 0, 0 );
+ return LDAP_OTHER;
+ }
ldap_pvt_thread_mutex_unlock( &si->dbconn_mutex );
Debug( LDAP_DEBUG_TRACE, "<==backsql_open_db_conn()\n", 0, 0, 0 );
- return dbc;
+ *pdbc = dbc;
+
+ return LDAP_SUCCESS;
}
int
-backsql_free_db_conn( Backend *be, Connection *ldapc )
+backsql_free_db_conn( Operation *op )
{
- backsql_info *si = (backsql_info *)be->be_private;
+ backsql_info *si = (backsql_info *)op->o_bd->be_private;
backsql_db_conn tmp, *conn;
Debug( LDAP_DEBUG_TRACE, "==>backsql_free_db_conn()\n", 0, 0, 0 );
- tmp.ldap_cid = ldapc->c_connid;
+ tmp.ldap_cid = op->o_connid;
ldap_pvt_thread_mutex_lock( &si->dbconn_mutex );
- conn = (backsql_db_conn *)avl_delete( &si->db_conns, &tmp,
- (AVL_CMP)backsql_cmp_connid );
+ conn = avl_delete( &si->db_conns, &tmp, backsql_cmp_connid );
ldap_pvt_thread_mutex_unlock( &si->dbconn_mutex );
/*
return SQL_SUCCESS;
}
-SQLHDBC
-backsql_get_db_conn( Backend *be, Connection *ldapc )
+int
+backsql_get_db_conn( Operation *op, SQLHDBC *dbh )
{
- backsql_info *si = (backsql_info *)be->be_private;
+ backsql_info *si = (backsql_info *)op->o_bd->be_private;
backsql_db_conn *dbc;
backsql_db_conn tmp;
+ int rc = LDAP_SUCCESS;
Debug( LDAP_DEBUG_TRACE, "==>backsql_get_db_conn()\n", 0, 0, 0 );
- tmp.ldap_cid = ldapc->c_connid;
+ assert( dbh );
+ *dbh = SQL_NULL_HDBC;
+
+ tmp.ldap_cid = op->o_connid;
/*
* we have one thread per connection, as I understand --
* so we do not need locking here
*/
- dbc = (backsql_db_conn *)avl_find( si->db_conns, &tmp,
- (AVL_CMP)backsql_cmp_connid );
+ dbc = avl_find( si->db_conns, &tmp, backsql_cmp_connid );
if ( !dbc ) {
- dbc = backsql_open_db_conn( si, ldapc->c_connid );
- }
-
- if ( !dbc ) {
- Debug( LDAP_DEBUG_TRACE, "backsql_get_db_conn(): "
- "could not get connection handle -- returning NULL\n",
- 0, 0, 0 );
- return SQL_NULL_HDBC;
+ rc = backsql_open_db_conn( si, op->o_connid, &dbc );
+ if ( rc != LDAP_SUCCESS) {
+ Debug( LDAP_DEBUG_TRACE, "backsql_get_db_conn(): "
+ "could not get connection handle "
+ "-- returning NULL\n", 0, 0, 0 );
+ return rc;
+ }
}
+
ldap_pvt_thread_mutex_lock( &si->schema_mutex );
- if ( !si->schema_loaded ) {
+ if ( !BACKSQL_SCHEMA_LOADED( si ) ) {
Debug( LDAP_DEBUG_TRACE, "backsql_get_db_conn(): "
"first call -- reading schema map\n", 0, 0, 0 );
- backsql_load_schema_map( si, dbc->dbh );
+ rc = backsql_load_schema_map( si, dbc->dbh );
+ if ( rc != LDAP_SUCCESS ) {
+ ldap_pvt_thread_mutex_unlock( &si->schema_mutex );
+ backsql_free_db_conn( op );
+ return rc;
+ }
}
ldap_pvt_thread_mutex_unlock( &si->schema_mutex );
+ *dbh = dbc->dbh;
+
Debug( LDAP_DEBUG_TRACE, "<==backsql_get_db_conn()\n", 0, 0, 0 );
- return dbc->dbh;
+
+ return LDAP_SUCCESS;
}
#endif /* SLAPD_SQL */
+
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