310 lines
7.9 KiB
C
310 lines
7.9 KiB
C
/*
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* $Id$
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Copyright(C) 1999 by Bruno Cantero.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public
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License along with this program; if not, write to:
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The Free Software Foundation, Inc.,
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675 Mass Ave, Cambridge, MA 02139, USA.
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You can contact me at: bruno@issnet.net
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*/
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#include <time.h>
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#include <ctype.h>
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#include "extend.h"
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#include "itemapi.h"
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#include "init.h"
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#include "rddapi.h"
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#include "rddsys.ch"
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typedef struct
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{
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BYTE bVersion;
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BYTE bYear;
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BYTE bMonth;
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BYTE bDay;
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ULONG ulRecords;
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USHORT uiHeaderLen;
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USHORT uiRecordLen;
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BYTE bReserved1[ 16 ];
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BYTE bHasTag;
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BYTE bReserved2[ 3 ];
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} DBFHEADER;
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typedef DBFHEADER * LPDBFHEADER;
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typedef struct
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{
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BYTE bName[ 11 ];
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BYTE bType;
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BYTE bReserved1[ 4 ];
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BYTE bLen;
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BYTE bDec;
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BYTE bReserved2[ 13 ];
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BYTE bHasTag;
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} DBFFIELD;
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typedef DBFFIELD * LPDBFFIELD;
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HARBOUR HB__DBF( void );
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HARBOUR HB_DBF_GETFUNCTABLE( void );
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HB_INIT_SYMBOLS_BEGIN( dbf1__InitSymbols )
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{ "_DBF", FS_PUBLIC, HB__DBF, 0 },
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{ "DBF_GETFUNCTABLE", FS_PUBLIC, HB_DBF_GETFUNCTABLE, 0 }
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HB_INIT_SYMBOLS_END( dbf1__InitSymbols );
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#if ! defined(__GNUC__)
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#pragma startup dbf1__InitSymbols
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#endif
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static ERRCODE Bof( AREAP pArea, BOOL * pBof )
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{
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printf( "Calling DBF: Bof()\n" );
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return SUCCESS;
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}
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static ERRCODE Eof( AREAP pArea, BOOL * pEof )
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{
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printf( "Calling DBF: Eof()\n" );
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return SUCCESS;
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}
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static ERRCODE Found( AREAP pArea, BOOL * pFound )
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{
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printf( "Calling DBF: Found()\n" );
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return SUCCESS;
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}
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static ERRCODE GoBottom( AREAP pArea )
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{
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printf( "Calling DBF: GoBottom()\n" );
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return SUCCESS;
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}
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static ERRCODE GoTo( AREAP pArea, LONG lRecNo )
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{
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printf( "Calling DBF: GoTo()\n" );
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return SUCCESS;
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}
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static ERRCODE GoTop( AREAP pArea )
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{
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printf( "Calling DBF: GoTop()\n" );
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return SUCCESS;
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}
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static ERRCODE Skip( AREAP pArea, LONG lToSkip )
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{
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printf( "Calling DBF: Skip()\n" );
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return SUCCESS;
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}
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static ERRCODE CreateFields( AREAP pArea, PHB_ITEM pStruct )
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{
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USHORT uiCount;
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PHB_ITEM pFieldDesc;
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DBFIELDINFO pFieldInfo;
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SELF_SETFIELDEXTENT( pArea, pStruct->item.asArray.value->ulLen );
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pFieldInfo.typeExtended = 0;
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for( uiCount = 0; uiCount < pStruct->item.asArray.value->ulLen; uiCount++ )
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{
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pFieldDesc = pStruct->item.asArray.value->pItems + uiCount;
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pFieldInfo.atomName = ( BYTE * ) hb_arrayGetString( pFieldDesc, 1 );
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pFieldInfo.uiLen = 0;
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pFieldInfo.uiType = toupper( hb_arrayGetString( pFieldDesc, 2 )[ 0 ] );
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if( pFieldInfo.uiType == 'N' )
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{
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pFieldInfo.uiLen = ( USHORT ) hb_arrayGetDouble( pFieldDesc, 3 );
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pFieldInfo.uiDec = ( USHORT ) hb_arrayGetDouble( pFieldDesc, 4 );
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}
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else
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{
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if( pFieldInfo.uiType == 'L' || pFieldInfo.uiType == 'D' ||
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pFieldInfo.uiType == 'M' )
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pFieldInfo.uiLen = ( USHORT ) hb_arrayGetDouble( pFieldDesc, 3 );
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else if( pFieldInfo.uiType == 'C' )
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{
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pFieldInfo.uiLen = ( USHORT ) hb_arrayGetDouble( pFieldDesc, 3 ) +
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( ( USHORT ) hb_arrayGetDouble( pFieldDesc, 4 ) << 8 );
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}
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pFieldInfo.uiDec = 0;
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}
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SELF_ADDFIELD( pArea, &pFieldInfo );
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}
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return SUCCESS;
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}
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static ERRCODE Close( AREAP pArea )
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{
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printf( "Calling DBF: Close()\n" );
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return SUCCESS;
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}
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static ERRCODE Info( AREAP pArea, USHORT uiIndex, PHB_ITEM pItem )
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{
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switch( uiIndex )
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{
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case DBI_TABLEEXT:
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hb_itemPutC( pItem, ".DBF" );
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break;
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}
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return SUCCESS;
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}
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static ERRCODE Open( AREAP pArea, LPDBOPENINFO pOpenInfo )
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{
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printf( "Calling DBF: Open()\n" );
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return SUCCESS;
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}
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static ERRCODE WriteDBHeader( AREAP pArea )
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{
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DBFHEADER pHeader;
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DBFFIELD pDBField;
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USHORT uiCount;
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LPFIELD pField;
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time_t t;
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struct tm * pTime;
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memset( &pHeader, 0, sizeof( DBFHEADER ) );
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pHeader.uiRecordLen = 1;
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pHeader.bVersion = 0x03;
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pField = pArea->lpFields;
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for( uiCount = 0; uiCount < pArea->uiFieldCount; uiCount++ )
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{
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switch( pField->uiType )
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{
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case 'C':
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case 'N':
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pHeader.uiRecordLen += pField->uiLen;
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break;
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case 'M':
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pHeader.uiRecordLen += 10;
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pHeader.bVersion = 0x83;
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break;
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case 'D':
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pHeader.uiRecordLen += 8;
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break;
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case 'L':
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pHeader.uiRecordLen += 1;
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break;
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}
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pField++;
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}
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time( &t );
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pTime = localtime( &t );
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pHeader.bYear = ( BYTE ) pTime->tm_year;
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pHeader.bMonth = ( BYTE ) pTime->tm_mon + 1;
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pHeader.bDay = ( BYTE ) pTime->tm_mday;
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pHeader.uiHeaderLen = ( USHORT ) ( 32 * ( pArea->uiFieldCount + 1 ) + 1 );
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pHeader.bHasTag = 0;
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pHeader.ulRecords = 0;
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if( hb_fsWrite( pArea->lpFileInfo->hFile, ( BYTE * ) &pHeader,
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sizeof( DBFHEADER ) ) != sizeof( DBFHEADER ) )
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return FAILURE;
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pField = pArea->lpFields;
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for( uiCount = 0; uiCount < pArea->uiFieldCount; uiCount++ )
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{
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memset( &pDBField, 0, sizeof( DBFFIELD ) );
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strncpy( ( char * ) pDBField.bName, ( const char * ) pField->sym, sizeof( pDBField.bName ) );
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hb_strUpper( ( char * ) pDBField.bName, strlen( ( char * ) pDBField.bName ) );
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pDBField.bType = pField->uiType;
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switch( pDBField.bType )
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{
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case 'C':
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pDBField.bLen = pField->uiLen & 0xFF;
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pDBField.bDec = pField->uiLen >> 8;
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break;
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case 'M':
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pDBField.bLen = 10;
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pDBField.bDec = 0;
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break;
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case 'D':
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pDBField.bLen = 8;
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pDBField.bDec = 0;
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break;
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case 'L':
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pDBField.bLen = 1;
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pDBField.bDec = 0;
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break;
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case 'N':
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pDBField.bLen = pField->uiLen;
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pDBField.bDec = pField->uiDec;
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break;
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}
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if( hb_fsWrite( pArea->lpFileInfo->hFile, ( BYTE * ) &pDBField,
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sizeof( DBFFIELD ) ) != sizeof( DBFFIELD ) )
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return FAILURE;
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pField++;
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}
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if( hb_fsWrite( pArea->lpFileInfo->hFile, ( BYTE * ) "\15\32", 2 ) != 2 )
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return FAILURE;
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return SUCCESS;
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}
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static RDDFUNCS dbfSuper = { 0 };
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static RDDFUNCS dbfTable = { Bof,
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Eof,
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Found,
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GoBottom,
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GoTo,
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GoTop,
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Skip,
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0, /* Super AddField */
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CreateFields,
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0, /* Super SetFieldsExtent */
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Close,
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0, /* Super Create */
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Info,
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0, /* Super NewArea */
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Open,
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0, /* Super Release */
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0, /* Super StructSize */
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0, /* Super SysName */
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WriteDBHeader
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};
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HARBOUR HB__DBF( void )
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{
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}
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HARBOUR HB_DBF_GETFUNCTABLE( void )
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{
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RDDFUNCS * pTable;
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USHORT * uiCount;
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uiCount = ( USHORT * ) hb_parnl( 1 );
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* uiCount = RDDFUNCSCOUNT;
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pTable = ( RDDFUNCS * ) hb_parnl( 2 );
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if( pTable )
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hb_retni( hb_rddInherit( pTable, &dbfTable, &dbfSuper, 0 ) );
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else
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hb_retni( FAILURE );
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}
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