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779 lines
20 KiB
779 lines
20 KiB
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/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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dt.cpp
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Abstract:
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Utility to do some disk related operations
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Author:
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Vijay Jayaseelan (vijayj) 26 April 2001
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Revision History:
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None
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--*/
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#include <nt.h>
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#include <ntrtl.h>
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#include <nturtl.h>
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#include <bootmbr.h>
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#include <iostream>
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#include <string>
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#include <exception>
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#include <windows.h>
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#include <tchar.h>
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#include <locale>
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#include <winioctl.h>
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//
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// Usage format
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//
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PCWSTR Usage = L"Usage: dt.exe /?\r\n"
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L"dt.exe /dump {[drive-letter] | [disk-number]} start-sector sector-count\r\n"
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L"dt.exe /diskinfo disk-number\r\n"
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L"dt.exe /mkdiskraw disk-number /want##@todo\r\n";
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//
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// Helper dump operators
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//
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std::ostream& operator<<(std::ostream &os, const std::wstring &str) {
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FILE *OutStream = (&os == &std::cerr) ? stderr : stdout;
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fwprintf(OutStream, (PWSTR)str.c_str());
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return os;
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}
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//
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// Helper dump operators
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//
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std::ostream& operator<<(std::ostream &os, WCHAR *Str) {
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std::wstring WStr = Str;
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os << WStr;
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return os;
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}
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//
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// Exceptions
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//
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struct ProgramException : public std::exception {
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virtual void Dump(std::ostream &os) = 0;
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};
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//
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// Abstracts a Win32 error
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//
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struct W32Error : public ProgramException {
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DWORD ErrorCode;
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W32Error(DWORD ErrCode = GetLastError()) : ErrorCode(ErrCode){}
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void Dump(std::ostream &os) {
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WCHAR MsgBuffer[4096];
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MsgBuffer[0] = UNICODE_NULL;
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DWORD CharCount = FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM,
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NULL,
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ErrorCode,
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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MsgBuffer,
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sizeof(MsgBuffer)/sizeof(WCHAR),
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NULL);
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if (CharCount) {
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std::wstring Msg(MsgBuffer);
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os << Msg;
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} else {
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os << std::hex << ErrorCode;
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}
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}
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};
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//
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// Invalid arguments
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//
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struct InvalidArguments : public ProgramException {
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const char *what() const throw() {
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return "Invalid Arguments";
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}
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void Dump(std::ostream &os) {
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os << what() << std::endl;
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}
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};
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//
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// Invalid arguments
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//
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struct ProgramUsage : public ProgramException {
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std::wstring PrgUsage;
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ProgramUsage(const std::wstring &Usg) : PrgUsage(Usg) {}
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const char *what() const throw() {
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return "Program Usage exception";
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}
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void Dump(std::ostream &os) {
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os << PrgUsage << std::endl;
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}
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};
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//
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// Program Arguments abstraction
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//
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struct ProgramArguments {
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bool DumpSectors;
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ULONG DiskIndex;
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std::wstring DriveLetter;
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LONGLONG StartingSector;
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ULONG NumSectors;
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std::wstring DeviceName;
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bool DumpDiskInfo;
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bool MakeDiskRaw;
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ProgramArguments(INT Argc, WCHAR *Argv[]) {
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bool ShowUsage = false;
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DumpSectors = false;
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DumpDiskInfo = false;
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DiskIndex = -1;
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StartingSector = -1;
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NumSectors = -1;
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for (ULONG Index=1; !ShowUsage && (Index < Argc); Index++) {
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if (!_wcsicmp(Argv[Index], TEXT("/dump"))) {
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ShowUsage = TRUE;
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if (((Index + 4) == Argc)) {
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Index++;
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DriveLetter = Argv[Index++];
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if ((DriveLetter.length() == 1)) {
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if (iswdigit(DriveLetter[0])) {
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WCHAR StrBuffer[64];
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DiskIndex = _wtol(DriveLetter.c_str());
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DriveLetter[0] = UNICODE_NULL;
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swprintf(StrBuffer,
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TEXT("\\\\.\\PHYSICALDRIVE%d"),
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DiskIndex);
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DeviceName = StrBuffer;
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} else {
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DeviceName = TEXT("\\\\.\\") + DriveLetter + TEXT(":");
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}
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StartingSector = (LONGLONG)(_wtoi64(Argv[Index++]));;
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NumSectors = (ULONG)_wtol(Argv[Index++]);
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ShowUsage = !(((DiskIndex != -1) || (DriveLetter[0])) &&
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(NumSectors != 0));
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DumpSectors = !ShowUsage;
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}
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}
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} else if (!_wcsicmp(Argv[Index], TEXT("/diskinfo"))) {
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DumpDiskInfo = TRUE;
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ShowUsage = TRUE;
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DriveLetter = Argv[++Index];
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if ((DriveLetter.length() == 1)) {
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if (iswdigit(DriveLetter[0])) {
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WCHAR StrBuffer[64];
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DiskIndex = _wtol(DriveLetter.c_str());
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DriveLetter[0] = UNICODE_NULL;
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swprintf(StrBuffer,
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TEXT("\\\\.\\PHYSICALDRIVE%d"),
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DiskIndex);
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DeviceName = StrBuffer;
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ShowUsage = FALSE;
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}
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}
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}
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else if ((!_wcsicmp(Argv[Index], TEXT("/mkdiskraw"))) &&
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(!_wcsicmp(Argv[Index+2], TEXT("/want##@todo"))))
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{
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DriveLetter = Argv[++Index];
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//
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// So that Index is equal to the number of arguments Argc.
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//
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Index ++;
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if ((DriveLetter.length() == 1)) {
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if (iswdigit(DriveLetter[0])) {
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WCHAR StrBuffer[64];
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DiskIndex = _wtol(DriveLetter.c_str());
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DriveLetter[0] = UNICODE_NULL;
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swprintf(StrBuffer,
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TEXT("\\\\.\\PHYSICALDRIVE%d"),
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DiskIndex);
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DeviceName = StrBuffer;
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MakeDiskRaw = TRUE;
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ShowUsage = FALSE;
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}
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}
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}else {
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ShowUsage = TRUE;
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}
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}
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if (ShowUsage) {
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throw new ProgramUsage(Usage);
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}
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}
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};
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//
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// Dumps the given binary data of the specified size
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// into the output stream with required indent size
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//
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void
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DumpBinary(unsigned char *Data, int Size,
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std::ostream& os, int Indent = 16)
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{
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if (Data && Size) {
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int Index = 0;
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int foo;
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char szBuff[128] = {'.'};
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int Ruler = 0;
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while (Index < Size) {
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if (!(Index % Indent)) {
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if (Index) {
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szBuff[Indent] = 0;
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os << szBuff;
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}
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os << std::endl;
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os.width(8);
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os.fill('0');
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os << Ruler << " ";
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Ruler += Indent;
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}
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foo = *(Data + Index);
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szBuff[Index % Indent] = ::isalnum(foo) ? (char)foo : (char)'.';
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os.width(2);
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os.fill('0');
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os.flags(std::ios::uppercase | std::ios::hex);
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os << foo << ' ';
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Index++;
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}
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while (Index % Indent) {
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os << ' ';
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Index++;
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szBuff[Index % Indent] = ' ';
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}
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szBuff[Indent] = 0;
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os << szBuff;
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} else {
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os << std::endl << "no data" << std::endl;
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}
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}
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//
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// Abstracts block device (interface)
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//
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class W32BlockDevice {
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public:
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W32BlockDevice(const std::wstring &name, ULONG SecSize) :
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SectorSize(SecSize), DeviceHandle(INVALID_HANDLE_VALUE), Name(name){
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//
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// Open the device
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//
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DeviceHandle = CreateFile(Name.c_str(),
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GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
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NULL,
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OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL,
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NULL);
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DWORD LastError = GetLastError();
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if (LastError) {
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throw new W32Error(LastError);
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}
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}
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virtual ~W32BlockDevice() {
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if (DeviceHandle != INVALID_HANDLE_VALUE) {
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CloseHandle(DeviceHandle);
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}
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};
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ULONG GetSectorSize() const { return SectorSize; }
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//
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// Reads the requested size of data from the given sector
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//
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virtual DWORD ReadSectors(LONGLONG Index, PBYTE DataBuffer, ULONG BufferSize = 512) {
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LARGE_INTEGER MoveLength;
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MoveLength.QuadPart = Index * SectorSize;
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SetFilePointerEx(DeviceHandle,
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MoveLength,
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NULL,
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FILE_BEGIN);
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DWORD LastError = GetLastError();
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if (!LastError) {
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DWORD BytesRead = 0;
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if (!ReadFile(DeviceHandle,
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DataBuffer,
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BufferSize,
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&BytesRead,
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NULL)) {
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LastError = GetLastError();
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}
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}
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return LastError;
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}
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//
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// Writes the requested size of data to the specified sector
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//
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virtual DWORD WriteSectors(ULONG Index, PBYTE DataBuffer, ULONG BufferSize = 512) {
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LARGE_INTEGER MoveLength;
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MoveLength.QuadPart = Index * SectorSize;
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SetFilePointerEx(DeviceHandle,
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MoveLength,
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NULL,
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FILE_BEGIN);
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DWORD LastError = GetLastError();
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if (!LastError) {
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DWORD BytesWritten = 0;
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if (!WriteFile(DeviceHandle,
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DataBuffer,
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BufferSize,
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&BytesWritten,
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NULL)) {
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LastError = GetLastError();
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}
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}
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return LastError;
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}
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virtual std::ostream& Dump(std::ostream &os) {
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os << TEXT("Device Name = ") << TEXT("(") << Name << TEXT(")") << std::endl;
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return os;
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}
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const HANDLE GetHandle() const { return DeviceHandle; }
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protected:
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//
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// Data members
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//
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HANDLE DeviceHandle;
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ULONG SectorSize;
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std::wstring Name;
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};
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VOID
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DumpSectors(
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IN ProgramArguments &Args
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)
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{
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if (Args.DumpSectors) {
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W32BlockDevice Device(Args.DeviceName, 512);
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WCHAR LongString[64];
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BYTE Sector[4096];
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ULONG SectorCount = Args.NumSectors;
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LONGLONG StartingSector = Args.StartingSector;
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Device.Dump(std::cout);
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while (SectorCount && (Device.ReadSectors(StartingSector, Sector) == NO_ERROR)) {
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std::cout << std::endl << "Sector : " << std::dec;
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LongString[0] = 0;
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std::cout << _i64tow(StartingSector, LongString, 10);
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DumpBinary(Sector, Device.GetSectorSize(), std::cout);
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std::cout << std::endl;
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SectorCount--;
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StartingSector++;
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}
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} else {
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SetLastError(ERROR_INVALID_PARAMETER);
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}
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DWORD LastError = GetLastError();
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if (LastError != NO_ERROR) {
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throw new W32Error(LastError);
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}
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}
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#ifndef _WIN64
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std::ostream&
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operator<<(std::ostream &os, const ULONGLONG &LargeInteger) {
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WCHAR Buffer[64];
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swprintf(Buffer, L"%I64u", LargeInteger);
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os << Buffer;
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return os;
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}
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std::ostream&
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operator<<(std::ostream &os, const LONGLONG &LargeInteger) {
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WCHAR Buffer[64];
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swprintf(Buffer, L"%I64d", LargeInteger);
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os << Buffer;
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return os;
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}
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#endif // ! _WIN64
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inline
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std::ostream&
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operator<<(std::ostream &os, const LARGE_INTEGER &LargeInteger) {
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return (os << LargeInteger.QuadPart);
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}
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inline
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std::ostream&
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operator<<(std::ostream &os, const GUID &Guid) {
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WCHAR Buffer[MAX_PATH];
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swprintf(Buffer,
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TEXT("{%08lx-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}"),
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Guid.Data1,
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Guid.Data2,
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Guid.Data3,
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Guid.Data4[0],
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Guid.Data4[1],
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Guid.Data4[2],
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Guid.Data4[3],
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Guid.Data4[4],
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Guid.Data4[5],
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Guid.Data4[6],
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Guid.Data4[7]);
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os << Buffer;
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return os;
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}
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inline
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std::ostream&
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operator<<(std::ostream &os, const PARTITION_INFORMATION_MBR &MbrPartInfo) {
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WCHAR Buffer[MAX_PATH];
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swprintf(Buffer,
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TEXT("Type : 0x%02lX, Active : %ws, Recognized : %ws, Hidden Sectors : %d"),
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MbrPartInfo.PartitionType,
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(MbrPartInfo.BootIndicator ? TEXT("TRUE") : TEXT("FALSE")),
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(MbrPartInfo.HiddenSectors ? TEXT("TRUE") : TEXT("FALSE")),
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MbrPartInfo.HiddenSectors);
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os << Buffer << std::endl;
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return os;
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}
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inline
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std::ostream&
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operator<<(std::ostream &os, const PARTITION_INFORMATION_GPT &GptPartInfo) {
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os << "Type : " << GptPartInfo.PartitionType << ", ";
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os << "Id : " << GptPartInfo.PartitionId << ", ";
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os << "Attrs : " << GptPartInfo.Attributes << ", ";
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os << "Name : " << std::wstring(GptPartInfo.Name);
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return os;
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}
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std::ostream&
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operator<<(std::ostream &os, const PARTITION_INFORMATION_EX &PartInfo) {
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os << "Partition# : " << std::dec << PartInfo.PartitionNumber;
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os << ", Start : " << PartInfo.StartingOffset.QuadPart;
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os << ", Length : " << PartInfo.PartitionLength.QuadPart << std::endl;
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switch(PartInfo.PartitionStyle) {
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case PARTITION_STYLE_MBR:
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os << PartInfo.Mbr;
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break;
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case PARTITION_STYLE_GPT:
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os << PartInfo.Gpt;
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break;
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default:
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break;
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}
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os << std::endl;
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return os;
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}
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std::ostream&
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operator<<(std::ostream &os, const DRIVE_LAYOUT_INFORMATION_MBR &MbrInfo) {
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os << "Signature : " << std::hex << MbrInfo.Signature;
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return os;
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}
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std::ostream&
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operator<<(std::ostream &os, const DRIVE_LAYOUT_INFORMATION_GPT &GptInfo) {
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os << "Disk ID : " << GptInfo.DiskId << ", ";
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os << "Starting Offset : " << std::dec << GptInfo.StartingUsableOffset << ", ";
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os << "Usable Length : " << std::dec << GptInfo.UsableLength << ", ";
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os << "Max Partition Count : " << std::dec << GptInfo.MaxPartitionCount;
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return os;
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}
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std::ostream&
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operator<<(std::ostream &os, const DRIVE_LAYOUT_INFORMATION_EX &DriveInfo) {
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os << "Disk Type : ";
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switch (DriveInfo.PartitionStyle) {
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case PARTITION_STYLE_MBR:
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os << "MBR";
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break;
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case PARTITION_STYLE_GPT:
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os << "GPT";
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break;
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default:
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os << "Unknown";
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break;
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}
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os << ", Partition Count : " << std::dec << DriveInfo.PartitionCount << " ";
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switch(DriveInfo.PartitionStyle) {
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case PARTITION_STYLE_MBR:
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os << DriveInfo.Mbr;
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break;
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case PARTITION_STYLE_GPT:
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os << DriveInfo.Gpt;
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break;
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default:
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break;
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}
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os << std::endl << std::endl;
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for (ULONG Index = 0; Index < DriveInfo.PartitionCount; Index++) {
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if (DriveInfo.PartitionEntry[Index].PartitionNumber) {
|
|
os << DriveInfo.PartitionEntry[Index];
|
|
os << std::endl;
|
|
}
|
|
}
|
|
|
|
os << std::endl;
|
|
|
|
return os;
|
|
}
|
|
|
|
std::ostream&
|
|
operator<<(std::ostream &os, const DISK_GEOMETRY &DiskInfo) {
|
|
os << "Heads : " << std::dec << DiskInfo.TracksPerCylinder;
|
|
os << ", Cylinders : " << DiskInfo.Cylinders;
|
|
os << ", Sectors/Track : " << std::dec << DiskInfo.SectorsPerTrack;
|
|
os << ", Bytes/Sector : " << std::dec << DiskInfo.BytesPerSector;
|
|
|
|
return os;
|
|
}
|
|
|
|
|
|
void
|
|
DumpDiskCharacteristics(
|
|
IN ProgramArguments &Args
|
|
)
|
|
{
|
|
DWORD LastError = NO_ERROR;
|
|
|
|
if (Args.DumpDiskInfo){
|
|
W32BlockDevice Device(Args.DeviceName, 512);
|
|
HANDLE DeviceHandle = (HANDLE)Device.GetHandle();
|
|
ULONG BufferLength = 16 * 1024;
|
|
PBYTE Buffer = new BYTE[BufferLength];
|
|
|
|
if (Buffer) {
|
|
DWORD BytesReturned = 0;
|
|
PDISK_GEOMETRY DiskInfo = (PDISK_GEOMETRY)Buffer;
|
|
|
|
Device.Dump(std::cout);
|
|
|
|
if (DeviceIoControl(DeviceHandle,
|
|
IOCTL_DISK_GET_DRIVE_GEOMETRY,
|
|
NULL,
|
|
0,
|
|
Buffer,
|
|
BufferLength,
|
|
&BytesReturned,
|
|
NULL)) {
|
|
std::cout << (*DiskInfo) << std::endl;
|
|
|
|
PDRIVE_LAYOUT_INFORMATION_EX DriveLayout = (PDRIVE_LAYOUT_INFORMATION_EX)Buffer;
|
|
|
|
if (DeviceIoControl(DeviceHandle,
|
|
IOCTL_DISK_GET_DRIVE_LAYOUT_EX,
|
|
NULL,
|
|
0,
|
|
Buffer,
|
|
BufferLength,
|
|
&BytesReturned,
|
|
NULL)) {
|
|
|
|
//
|
|
// dump the disk information
|
|
//
|
|
std::cout << (*DriveLayout);
|
|
}
|
|
}
|
|
|
|
LastError = GetLastError();
|
|
|
|
delete []Buffer;
|
|
}
|
|
} else {
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
}
|
|
|
|
if (LastError == NO_ERROR) {
|
|
LastError = GetLastError();
|
|
}
|
|
|
|
if (LastError != NO_ERROR) {
|
|
throw new W32Error(LastError);
|
|
}
|
|
}
|
|
|
|
|
|
//
|
|
// Given the Disk this function makes it a raw disk.
|
|
//
|
|
void
|
|
MakeDiskRaw(
|
|
IN ProgramArguments &Args
|
|
)
|
|
{
|
|
DWORD ReturnValue = ERROR_INVALID_PARAMETER;
|
|
|
|
if (Args.MakeDiskRaw){
|
|
W32BlockDevice Device(Args.DeviceName, 512);
|
|
const ULONG SectorsToZap = 3;
|
|
ULONG BufferLength = Device.GetSectorSize() * SectorsToZap;
|
|
PBYTE Buffer = new BYTE[BufferLength];
|
|
|
|
if (Buffer){
|
|
memset(Buffer, 0, BufferLength);
|
|
ReturnValue = Device.WriteSectors(0, Buffer, BufferLength);
|
|
|
|
delete []Buffer;
|
|
}
|
|
}
|
|
|
|
if (ReturnValue != NO_ERROR){
|
|
throw new W32Error(ReturnValue);
|
|
}
|
|
}
|
|
|
|
//
|
|
// main() entry point
|
|
//
|
|
int
|
|
__cdecl
|
|
wmain(
|
|
int Argc,
|
|
wchar_t *Argv[]
|
|
)
|
|
{
|
|
int Result = 0;
|
|
|
|
try {
|
|
ProgramArguments Args(Argc, Argv);
|
|
|
|
if (Args.DumpSectors) {
|
|
DumpSectors(Args);
|
|
} else if (Args.DumpDiskInfo) {
|
|
DumpDiskCharacteristics(Args);
|
|
} else if (Args.MakeDiskRaw){
|
|
MakeDiskRaw(Args);
|
|
} else{
|
|
throw new ProgramUsage(Usage);
|
|
}
|
|
}
|
|
catch(W32Error *W32Err) {
|
|
Result = 1;
|
|
|
|
if (W32Err) {
|
|
W32Err->Dump(std::cout);
|
|
delete W32Err;
|
|
}
|
|
}
|
|
catch(ProgramException *PrgExp) {
|
|
Result = 1;
|
|
|
|
if (PrgExp) {
|
|
PrgExp->Dump(std::cout);
|
|
delete PrgExp;
|
|
}
|
|
} catch (exception *Exp) {
|
|
Result = 1;
|
|
|
|
if (Exp) {
|
|
std::cout << Exp->what() << std::endl;
|
|
}
|
|
}
|
|
|
|
return Result;
|
|
}
|
|
|