partitioning USB Falsh drive

[sateeshn2507]

I have written some code to make two partitions in USB flash drive. When I ran it I am not able to make partitions on usb. What'll be the problem in this code.

/-------------------INITIALIZE AND PARTITION-------------------------------//
#include "stdafx.h"                                                                  
#include <Windows.h>                                                            
#include <stdio.h>                                                                  
#include <iostream>                                                                
#include <tchar.h>                                                                
#include <winioctl.h>                                                            
#include <shellapi.h>                                                            
//-------------------------------------Main-------------------------------------//
int _tmain(int argc, _TCHAR* argv[])                                                                    
{                                                                                
	//char *dsk = "\\\\.\\PhysicalDrive1";                                        
	HANDLE hDisk;                                                                
	DWORD junk = 0;                                                                
	BOOL bResult = false;    
	unsigned int SectorSize = 512;
//
	//
	hDisk = CreateFile(TEXT("\\\\.\\E:"),                            
		GENERIC_READ | GENERIC_WRITE,                                           
		FILE_SHARE_READ | FILE_SHARE_WRITE,                                        
		NULL,                                                                    
		OPEN_EXISTING,                                                            
		0,                                                                        
		NULL);                                                                    
	//
	//error handler for driver                                                    
	if (hDisk == INVALID_HANDLE_VALUE)                                              
	{                                                                            
		CloseHandle(hDisk);                                                        
		return 1;                                                                
	}                                                                            
	//
	//
	CREATE_DISK dsk;                                                            
	dsk.PartitionStyle = PARTITION_STYLE_MBR;                                    
	dsk.Mbr.Signature = 9999;                                                    
	//
	//-------------------------------Initialize Disk--------------------------------//
	bResult = DeviceIoControl(hDisk,    //initialize raw disk                    
		IOCTL_DISK_CREATE_DISK,                                                    
		&dsk, sizeof(dsk),                                                        
		NULL, 0,                                                                
		&junk,                                                                    
		NULL);                                                                    
	//
	if (!bResult)                                                                
	{                                                                            
		return GetLastError();                                                    
	}                                                                            
	//
	bResult = DeviceIoControl(hDisk,    //to flush changes                        
		IOCTL_DISK_UPDATE_PROPERTIES,                                            
		NULL, 0, NULL, 0, &junk, NULL);                                            
	//
	if (!bResult)                                                                
	{                                                                            
		return GetLastError();                                                    
	}                                                                            
	//
	//
	//----------------------------Partition Disk--------------------------------//
	LARGE_INTEGER DiskSize;
	DiskSize.QuadPart = 15784004812.8;
		LARGE_INTEGER Part_1_size;
		Part_1_size.QuadPart = 7892002406.4;
		LARGE_INTEGER Part_2_size;
		Part_2_size.QuadPart = 7892002406.4;
	LARGE_INTEGER lgPartSize;                                                    
	//
	lgPartSize.QuadPart = (1024 * 1024 * 1024);                                    
	//
	DWORD dwDriverLayoutInfoExLen = sizeof(DRIVE_LAYOUT_INFORMATION_EX) + 3 *    
		sizeof(PARTITION_INFORMATION_EX);                                        
	//
	DRIVE_LAYOUT_INFORMATION_EX *pdg = (DRIVE_LAYOUT_INFORMATION_EX *)new        
		BYTE[dwDriverLayoutInfoExLen];                                            
	//
	if (pdg == NULL)                                                            
	{                                                                            
		return -1;                                                                
	}                                                                            
	//
	SecureZeroMemory(pdg, dwDriverLayoutInfoExLen);                                
	

	//Create the PHTSYS partition
	pdg->PartitionEntry[0].PartitionStyle = PARTITION_STYLE_MBR;
	pdg->PartitionEntry[0].StartingOffset.QuadPart = 32768;
	pdg->PartitionEntry[0].PartitionLength = Part_1_size;
	pdg->PartitionEntry[0].PartitionNumber = 1;
	pdg->PartitionEntry[0].RewritePartition = 1;
	pdg->PartitionEntry[0].Mbr.PartitionType = PARTITION_FAT32;
	pdg->PartitionEntry[0].Mbr.BootIndicator = TRUE;
	pdg->PartitionEntry[0].Mbr.RecognizedPartition = 1;
	pdg->PartitionEntry[0].Mbr.HiddenSectors = (pdg->PartitionEntry[0].StartingOffset.QuadPart - 1) / SectorSize;

	//Create the extended entry for the PHTDATA partition
	pdg->PartitionEntry[1].PartitionStyle = PARTITION_STYLE_MBR;
	pdg->PartitionEntry[1].StartingOffset.QuadPart = Part_1_size.QuadPart + pdg->PartitionEntry[0].StartingOffset.QuadPart;
	pdg->PartitionEntry[1].PartitionLength = Part_2_size;
	pdg->PartitionEntry[1].PartitionNumber = 2;
	pdg->PartitionEntry[1].RewritePartition = 1;
	pdg->PartitionEntry[1].Mbr.PartitionType = PARTITION_EXTENDED;
	pdg->PartitionEntry[1].Mbr.BootIndicator = 0;
	pdg->PartitionEntry[1].Mbr.RecognizedPartition = 1;
	pdg->PartitionEntry[1].Mbr.HiddenSectors = (pdg->PartitionEntry[0].StartingOffset.QuadPart + Part_1_size.QuadPart) / SectorSize;

	//Create the PHTDATA partition
	pdg->PartitionEntry[4].PartitionStyle = PARTITION_STYLE_MBR;


	pdg->PartitionEntry[4].StartingOffset.QuadPart = Part_1_size.QuadPart + pdg->PartitionEntry[0].StartingOffset.QuadPart + SectorSize;

	LARGE_INTEGER LogicalPartition = Part_2_size;

	LogicalPartition.QuadPart = LogicalPartition.QuadPart - SectorSize;
	pdg->PartitionEntry[4].PartitionNumber = 3;
	pdg->PartitionEntry[4].RewritePartition = 1;
	pdg->PartitionEntry[4].Mbr.PartitionType = PARTITION_FAT32;
	pdg->PartitionEntry[4].Mbr.BootIndicator = 0;
	pdg->PartitionEntry[4].Mbr.RecognizedPartition = 1;
	pdg->PartitionEntry[4].Mbr.HiddenSectors = (pdg->PartitionEntry[0].StartingOffset.QuadPart + Part_1_size.QuadPart) / SectorSize;
	bResult = DeviceIoControl(hDisk,            //device to be queried            
		IOCTL_DISK_SET_DRIVE_LAYOUT_EX,            //operation to perform            
		pdg, sizeof DRIVE_LAYOUT_INFORMATION_EX,//sizeof(pdg),                   
		NULL, 0,                                // output buffer                 
		&junk,                                    //# bytes returned                 
		NULL);                                                                   
	
	if (!bResult)                                                                
	{                                                                            
		return GetLastError();                                                    
	}                                                                            
	//
	//
	CloseHandle(hDisk);
	return 0;                                                                                    
}