text: /* $OpenLDAP$ */
  /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   *
   * Copyright 1999-2021 The OpenLDAP Foundation.
   * Portions Copyright 1999 Dmitry Kovalev.
   * Portions Copyright 2002 Pierangelo Masarati.
   * All rights reserved.
   *
   * 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.  Additional significant contributors include
   * Pierangelo Masarati.
   */
  
  #include "portable.h"
  
  #include <stdio.h>
  #include <sys/types.h>
  
  #include "slap.h"
  #include "proto-sql.h"
  
  int 
  backsql_bind( Operation *op, SlapReply *rs )
  {
  	SQLHDBC			dbh = SQL_NULL_HDBC;
  	Entry			e = { 0 };
  	Attribute		*a;
  	backsql_srch_info	bsi = { 0 };
  	AttributeName		anlist[2];
  	int			rc;
   
   	Debug( LDAP_DEBUG_TRACE, "==>backsql_bind()\n", 0, 0, 0 );
  
  	switch ( be_rootdn_bind( op, rs ) ) {
  	case SLAP_CB_CONTINUE:
  		break;
  
  	default:
  		/* in case of success, front end will send result;
  		 * otherwise, be_rootdn_bind() did */
   		Debug( LDAP_DEBUG_TRACE, "<==backsql_bind(%d)\n",
  			rs->sr_err, 0, 0 );
  		return rs->sr_err;
  	}
  
  	rs->sr_err = backsql_get_db_conn( op, &dbh );
  	if ( rs->sr_err != LDAP_SUCCESS ) {
       		Debug( LDAP_DEBUG_TRACE, "backsql_bind(): "
  			"could not get connection handle - exiting\n",
  			0, 0, 0 );
  
  		rs->sr_text = ( rs->sr_err == LDAP_OTHER )
  			? "SQL-backend error" : NULL;
  		goto error_return;
  	}
  
  	anlist[0].an_name = slap_schema.si_ad_userPassword->ad_cname;
  	anlist[0].an_desc = slap_schema.si_ad_userPassword;
  	anlist[1].an_name.bv_val = NULL;
  
  	bsi.bsi_e = &e;
  	rc = backsql_init_search( &bsi, &op->o_req_ndn, LDAP_SCOPE_BASE, 
  			(time_t)(-1), NULL, dbh, op, rs, anlist,
  			BACKSQL_ISF_GET_ENTRY );
  	if ( rc != LDAP_SUCCESS ) {
  		Debug( LDAP_DEBUG_TRACE, "backsql_bind(): "
  			"could not retrieve bindDN ID - no such entry\n", 
  			0, 0, 0 );
  		rs->sr_err = LDAP_INVALID_CREDENTIALS;
  		goto error_return;
  	}
  
  	a = attr_find( e.e_attrs, slap_schema.si_ad_userPassword );
  	if ( a == NULL ) {
  		rs->sr_err = LDAP_INVALID_CREDENTIALS;
  		goto error_return;
  	}
  
  	if ( slap_passwd_check( op, &e, a, &op->oq_bind.rb_cred,
  				&rs->sr_text ) != 0 )
  	{
  		rs->sr_err = LDAP_INVALID_CREDENTIALS;
  		goto error_return;
  	}
  
  error_return:;
  	if ( !BER_BVISNULL( &bsi.bsi_base_id.eid_ndn ) ) {
  		(void)backsql_free_entryID( &bsi.bsi_base_id, 0, op->o_tmpmemctx );
  	}
  
  	if ( !BER_BVISNULL( &e.e_nname ) ) {
  		backsql_entry_clean( op, &e );
  	}
  
  	if ( bsi.bsi_attrs != NULL ) {
  		op->o_tmpfree( bsi.bsi_attrs, op->o_tmpmemctx );
  	}
  
  	if ( rs->sr_err != LDAP_SUCCESS ) {
  		send_ldap_result( op, rs );
  	}
  	
  	Debug( LDAP_DEBUG_TRACE,"<==backsql_bind()\n", 0, 0, 0 );
  
  	return rs->sr_err;
  }
   
  