ZealOS/src/Demo/Disk/DiskRaw.CC

U0 RawAccess(I64 drv_let=0)
{
	CDrive *drive=Letter2Drive(drv_let);
	CBlkDev *bd=Letter2BlkDev(drv_let);
	I64 blk,old_offset,old_size;
	U8 *buf=MAlloc(BLK_SIZE);

	DriveRep;
	PressAKey;

	ClassRep(drive);
	PressAKey;

	ClassRep(bd);
	PressAKey;

	//Temporarily change partition range to full device.
	//Normally, you are limited to just your partition.
	//This is obviously $BK,1$dangerous$BK,0$!
	old_offset=drive->drv_offset;
	old_size	=drive->size;
	drive->drv_offset=0;
	drive->size=bd->max_blk+1;

	try {
		blk=I64Get("Blk to Read: ",old_offset,0,bd->max_blk);
		BlkRead(drive,buf,blk,1);
		D(buf,BLK_SIZE);
	} catch
		PutExcept;

	drive->drv_offset=old_offset;
	drive->size  =old_size;

	Free(buf);
}

RawAccess;

//See $LK,"BlkRead",A="MN:BlkRead"$(), $LK,"BlkWrite",A="MN:BlkWrite"$(), $LK,"DriveLock",A="MN:DriveLock"$(), $LK,"DriveUnlock",A="MN:DriveUnlock"$()
//$LK,"DBlk",A="MN:DBlk"$(), $LK,"DClus",A="MN:DClus"$(), $LK,"BlkDevLock",A="MN:BlkDevLock"$() and $LK,"BlkDevUnlock",A="MN:BlkDevUnlock"$().