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// 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 of the License, or
// 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 program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
#include "cfs_b2b.h"
#include "autil.h"
CBas2Boot::CBas2Boot() : CFs()
{
#ifdef _MEMORY_DUMP_
printf( "CBas2Boot constructed: %08X\n", this );
#endif
}
CBas2Boot::~CBas2Boot()
{
Dismount();
#ifdef _MEMORY_DUMP_
printf( "CBas2Boot destructed: %08X\n", this );
#endif
}
BOOL CBas2Boot::Mount( ADisk* pDisk )
{
m_iFilesValid = 0;
m_iFilesInvalid = 0;
m_pDisk = pDisk;
m_pRoot = NULL;
if ( m_pDisk->GetSectorSize() != 0x80 )
{
sprintf( m_szLastError, "BAS2BOOT: Can't process DD disk!" );
return FALSE;
}
m_pRoot = CreateEntry();
return m_pRoot ? TRUE : FALSE;
}
void CBas2Boot::Dismount()
{
DeleteList( m_pRoot );
}
CBas2BootDirEntry* CBas2Boot::CreateEntry()
{
CBas2BootDirEntry* pE = new CBas2BootDirEntry();
if ( !pE )
return NULL;
BYTE abtSec[ 0x100 ];
if ( !m_pDisk->ReadSector( abtSec, 1 ) )
{
sprintf( m_szLastError, "BAS2BOOT: Can't read boot sector because\n%s", m_pDisk->GetLastError() );
delete pE;
return NULL;
}
pE->m_dwFileLen = abtSec[ 8 ] + ( abtSec[ 9 ] << 8 );
if ( !m_pDisk->ReadSector( abtSec, 2 ) )
{
sprintf( m_szLastError, "BAS2BOOT: Can't read boot sector because\n%s", m_pDisk->GetLastError() );
delete pE;
return NULL;
}
int iSectors = ( ( pE->m_dwFileLen - 0x0E + 0x7F ) / 0x80 );
int iStoredSectors = abtSec[ 0x70 ] + ( abtSec[ 0x71 ] << 8 );
if ( ( iSectors - 1 ) != iStoredSectors )
{
sprintf( m_szLastError, "BAS2BOOT: Not a Bas2Boot image or invalid! (%d<>%d)", iSectors - 1, iStoredSectors );
delete pE;
return NULL;
}
if ( ( iSectors + 2 ) > m_pDisk->GetSectorCount() )
{
sprintf( m_szLastError, "BAS2BOOT: Not a Bas2Boot image or invalid! (%d<>%d)", iSectors + 2, m_pDisk->GetSectorCount() );
delete pE;
return NULL;
}
sprintf( pE->m_szAscData, "%06lX", pE->m_dwFileLen );
GuessBestFnameFromPC( pE->m_szFname, m_pDisk->GetImageName(), "bas" );
return pE;
}
BOOL CBas2Boot::ExportFile( char* szOutFile, CDirEntry* pDirE )
{
int hOutfile = -1;
if ( szOutFile )
{
hOutfile = open( szOutFile, O_BINARY | O_CREAT | O_TRUNC | O_WRONLY, 0666 );
if ( -1 == hOutfile )
{
sprintf( m_szLastError, "BAS2BOOT: Unable to create file '%s'!", szOutFile );
return FALSE;
}
}
DWORD dwFileLen = ((CBas2BootDirEntry*)pDirE) ->m_dwFileLen;
BYTE abtBuff[ 0x80 ];
int iSector = 3;
m_pDisk->ReadSector( abtBuff, 2 );
if ( -1 != hOutfile )
write( hOutfile, abtBuff + 0x72, 0x0E );
dwFileLen -= 0xE;
while( dwFileLen )
{
WORD wToCopy = ( dwFileLen < 0x80 ) ? dwFileLen : 0x80;
if ( !m_pDisk->ReadSector( abtBuff, iSector ) )
{
sprintf( m_szLastError, "BAS2BOOT: Can't read sector because\n%s", m_pDisk->GetLastError() );
return FALSE;
}
if ( -1 != hOutfile )
write( hOutfile, abtBuff, wToCopy );
dwFileLen -= wToCopy;
iSector++;
}
if ( -1 != hOutfile )
close( hOutfile );
return TRUE;
}
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