dbftools.c

/*
 * dbf structure related functions:
 *   FieldSize(), FieldNum(), DbfSize()
 *
 * Copyright 2000 Alexander Kresin <alex@belacy.belgorod.su>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this software; see the file COPYING.txt.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307 USA (or visit the web site https://www.gnu.org/).
 *
 * As a special exception, the Harbour Project gives permission for
 * additional uses of the text contained in its release of Harbour.
 *
 * The exception is that, if you link the Harbour libraries with other
 * files to produce an executable, this does not by itself cause the
 * resulting executable to be covered by the GNU General Public License.
 * Your use of that executable is in no way restricted on account of
 * linking the Harbour library code into it.
 *
 * This exception does not however invalidate any other reasons why
 * the executable file might be covered by the GNU General Public License.
 *
 * This exception applies only to the code released by the Harbour
 * Project under the name Harbour.  If you copy code from other
 * Harbour Project or Free Software Foundation releases into a copy of
 * Harbour, as the General Public License permits, the exception does
 * not apply to the code that you add in this way.  To avoid misleading
 * anyone as to the status of such modified files, you must delete
 * this exception notice from them.
 *
 * If you write modifications of your own for Harbour, it is your choice
 * whether to permit this exception to apply to your modifications.
 * If you do not wish that, delete this exception notice.
 *
 */

#include "hbapi.h"
#include "hbapiitm.h"
#include "hbapirdd.h"

HB_FUNC_TRANSLATE( FIELDSIZE, FIELDLEN )
HB_FUNC_TRANSLATE( FIELDNUM , FIELDPOS )

HB_FUNC( DBFSIZE )
{
   HB_MAXINT llSize = 0;
   AREAP pArea;

   if( ( pArea = ( AREAP ) hb_rddGetCurrentWorkAreaPointer() ) != NULL )
   {
      PHB_ITEM pSize = hb_itemNew( NULL );

      if( SELF_INFO( pArea, DBI_GETHEADERSIZE, pSize ) == HB_SUCCESS )
      {
         llSize = hb_itemGetNL( pSize ) + 1;
         if( SELF_INFO( pArea, DBI_GETRECSIZE, pSize ) == HB_SUCCESS )
         {
            HB_ULONG ulRecSize, ulRecCount;
            ulRecSize = hb_itemGetNL( pSize );
            if( SELF_RECCOUNT( pArea, &ulRecCount ) == HB_SUCCESS )
               llSize += ( HB_MAXINT ) ulRecCount * ulRecSize;
         }
      }
      hb_itemRelease( pSize );
   }

   hb_retnint( llSize );
}