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windbg_to_c

Translates WinDbg "dt" structure dump to a C structure

Usage:

You can run the application from the command line passing a input file as parameter. Like this:

 windbg_to_c.exe input.txt

Or you can just drag and drop the source file into application executable.

After that, a "result.txt" file will be generated with the C structure.

Currently, there's no error handling so I dont know what happens if you pass an invalid input.

Example:

Input:

kd> dt nt!_PEB
   +0x000 InheritedAddressSpace : UChar
   +0x001 ReadImageFileExecOptions : UChar
   +0x002 BeingDebugged    : UChar
   +0x003 BitField         : UChar
   +0x003 ImageUsesLargePages : Pos 0, 1 Bit
   +0x003 IsProtectedProcess : Pos 1, 1 Bit
   +0x003 IsImageDynamicallyRelocated : Pos 2, 1 Bit
   +0x003 SkipPatchingUser32Forwarders : Pos 3, 1 Bit
   +0x003 IsPackagedProcess : Pos 4, 1 Bit
   +0x003 IsAppContainer   : Pos 5, 1 Bit
   +0x003 IsProtectedProcessLight : Pos 6, 1 Bit
   +0x003 SpareBits        : Pos 7, 1 Bit
   +0x004 Padding0         : [4] UChar
   +0x008 Mutant           : Ptr64 Void
   +0x010 ImageBaseAddress : Ptr64 Void
   +0x018 Ldr              : Ptr64 _PEB_LDR_DATA
   +0x020 ProcessParameters : Ptr64 _RTL_USER_PROCESS_PARAMETERS
   +0x028 SubSystemData    : Ptr64 Void
   +0x030 ProcessHeap      : Ptr64 Void
   +0x038 FastPebLock      : Ptr64 _RTL_CRITICAL_SECTION
   +0x040 AtlThunkSListPtr : Ptr64 Void
   +0x048 IFEOKey          : Ptr64 Void
   +0x050 CrossProcessFlags : Uint4B
   +0x050 ProcessInJob     : Pos 0, 1 Bit
   +0x050 ProcessInitializing : Pos 1, 1 Bit
   +0x050 ProcessUsingVEH  : Pos 2, 1 Bit
   +0x050 ProcessUsingVCH  : Pos 3, 1 Bit
   +0x050 ProcessUsingFTH  : Pos 4, 1 Bit
   +0x050 ReservedBits0    : Pos 5, 27 Bits
   +0x054 Padding1         : [4] UChar
   +0x058 KernelCallbackTable : Ptr64 Void
   +0x058 UserSharedInfoPtr : Ptr64 Void
   +0x060 SystemReserved   : [1] Uint4B
   +0x064 AtlThunkSListPtr32 : Uint4B
   +0x068 ApiSetMap        : Ptr64 Void
   +0x070 TlsExpansionCounter : Uint4B
   +0x074 Padding2         : [4] UChar
   +0x078 TlsBitmap        : Ptr64 Void
   +0x080 TlsBitmapBits    : [2] Uint4B
   +0x088 ReadOnlySharedMemoryBase : Ptr64 Void
   +0x090 SparePvoid0      : Ptr64 Void
   +0x098 ReadOnlyStaticServerData : Ptr64 Ptr64 Void
   +0x0a0 AnsiCodePageData : Ptr64 Void
   +0x0a8 OemCodePageData  : Ptr64 Void
   +0x0b0 UnicodeCaseTableData : Ptr64 Void
   +0x0b8 NumberOfProcessors : Uint4B
   +0x0bc NtGlobalFlag     : Uint4B
   +0x0c0 CriticalSectionTimeout : _LARGE_INTEGER
   +0x0c8 HeapSegmentReserve : Uint8B
   +0x0d0 HeapSegmentCommit : Uint8B
   +0x0d8 HeapDeCommitTotalFreeThreshold : Uint8B
   +0x0e0 HeapDeCommitFreeBlockThreshold : Uint8B
   +0x0e8 NumberOfHeaps    : Uint4B
   +0x0ec MaximumNumberOfHeaps : Uint4B
   +0x0f0 ProcessHeaps     : Ptr64 Ptr64 Void
   +0x0f8 GdiSharedHandleTable : Ptr64 Void
   +0x100 ProcessStarterHelper : Ptr64 Void
   +0x108 GdiDCAttributeList : Uint4B
   +0x10c Padding3         : [4] UChar
   +0x110 LoaderLock       : Ptr64 _RTL_CRITICAL_SECTION
   +0x118 OSMajorVersion   : Uint4B
   +0x11c OSMinorVersion   : Uint4B
   +0x120 OSBuildNumber    : Uint2B
   +0x122 OSCSDVersion     : Uint2B
   +0x124 OSPlatformId     : Uint4B
   +0x128 ImageSubsystem   : Uint4B
   +0x12c ImageSubsystemMajorVersion : Uint4B
   +0x130 ImageSubsystemMinorVersion : Uint4B
   +0x134 Padding4         : [4] UChar
   +0x138 ActiveProcessAffinityMask : Uint8B
   +0x140 GdiHandleBuffer  : [60] Uint4B
   +0x230 PostProcessInitRoutine : Ptr64     void 
   +0x238 TlsExpansionBitmap : Ptr64 Void
   +0x240 TlsExpansionBitmapBits : [32] Uint4B
   +0x2c0 SessionId        : Uint4B
   +0x2c4 Padding5         : [4] UChar
   +0x2c8 AppCompatFlags   : _ULARGE_INTEGER
   +0x2d0 AppCompatFlagsUser : _ULARGE_INTEGER
   +0x2d8 pShimData        : Ptr64 Void
   +0x2e0 AppCompatInfo    : Ptr64 Void
   +0x2e8 CSDVersion       : _UNICODE_STRING
   +0x2f8 ActivationContextData : Ptr64 _ACTIVATION_CONTEXT_DATA
   +0x300 ProcessAssemblyStorageMap : Ptr64 _ASSEMBLY_STORAGE_MAP
   +0x308 SystemDefaultActivationContextData : Ptr64 _ACTIVATION_CONTEXT_DATA
   +0x310 SystemAssemblyStorageMap : Ptr64 _ASSEMBLY_STORAGE_MAP
   +0x318 MinimumStackCommit : Uint8B
   +0x320 FlsCallback      : Ptr64 _FLS_CALLBACK_INFO
   +0x328 FlsListHead      : _LIST_ENTRY
   +0x338 FlsBitmap        : Ptr64 Void
   +0x340 FlsBitmapBits    : [4] Uint4B
   +0x350 FlsHighIndex     : Uint4B
   +0x358 WerRegistrationData : Ptr64 Void
   +0x360 WerShipAssertPtr : Ptr64 Void
   +0x368 pUnused          : Ptr64 Void
   +0x370 pImageHeaderHash : Ptr64 Void
   +0x378 TracingFlags     : Uint4B
   +0x378 HeapTracingEnabled : Pos 0, 1 Bit
   +0x378 CritSecTracingEnabled : Pos 1, 1 Bit
   +0x378 LibLoaderTracingEnabled : Pos 2, 1 Bit
   +0x378 SpareTracingBits : Pos 3, 29 Bits
   +0x37c Padding6         : [4] UChar
   +0x380 CsrServerReadOnlySharedMemoryBase : Uint8B
   +0x388 TppWorkerpListLock : Uint8B
   +0x390 TppWorkerpList   : _LIST_ENTRY
   +0x3a0 WaitOnAddressHashTable : [128] Ptr64 Void

Output:

typedef struct _PEB
{
    UCHAR InheritedAddressSpace;
    UCHAR ReadImageFileExecOptions;
    UCHAR BeingDebugged;
    union {
        UCHAR BitField;
        struct {
            UCHAR ImageUsesLargePages : 1;
            UCHAR IsProtectedProcess : 1;
            UCHAR IsImageDynamicallyRelocated : 1;
            UCHAR SkipPatchingUser32Forwarders : 1;
            UCHAR IsPackagedProcess : 1;
            UCHAR IsAppContainer : 1;
            UCHAR IsProtectedProcessLight : 1;
            UCHAR SpareBits : 1;
        };
    };
    UCHAR Padding0[4];
    PVOID Mutant;
    PVOID ImageBaseAddress;
    PPEB_LDR_DATA Ldr;
    PRTL_USER_PROCESS_PARAMETERS ProcessParameters;
    PVOID SubSystemData;
    PVOID ProcessHeap;
    PRTL_CRITICAL_SECTION FastPebLock;
    PVOID AtlThunkSListPtr;
    PVOID IFEOKey;
    union {
        ULONG CrossProcessFlags;
        struct {
            UCHAR ProcessInJob : 1;
            UCHAR ProcessInitializing : 1;
            UCHAR ProcessUsingVEH : 1;
            UCHAR ProcessUsingVCH : 1;
            UCHAR ProcessUsingFTH : 1;
            ULONG ReservedBits0 : 27;
        };
    };
    UCHAR Padding1[4];
    union {
        PVOID KernelCallbackTable;
        PVOID UserSharedInfoPtr;
    };
    ULONG SystemReserved[1];
    ULONG AtlThunkSListPtr32;
    PVOID ApiSetMap;
    ULONG TlsExpansionCounter;
    UCHAR Padding2[4];
    PVOID TlsBitmap;
    ULONG TlsBitmapBits[2];
    PVOID ReadOnlySharedMemoryBase;
    PVOID SparePvoid0;
    PVOID* ReadOnlyStaticServerData;
    PVOID AnsiCodePageData;
    PVOID OemCodePageData;
    PVOID UnicodeCaseTableData;
    ULONG NumberOfProcessors;
    ULONG NtGlobalFlag;
    LARGE_INTEGER CriticalSectionTimeout;
    ULONGLONG HeapSegmentReserve;
    ULONGLONG HeapSegmentCommit;
    ULONGLONG HeapDeCommitTotalFreeThreshold;
    ULONGLONG HeapDeCommitFreeBlockThreshold;
    ULONG NumberOfHeaps;
    ULONG MaximumNumberOfHeaps;
    PVOID* ProcessHeaps;
    PVOID GdiSharedHandleTable;
    PVOID ProcessStarterHelper;
    ULONG GdiDCAttributeList;
    UCHAR Padding3[4];
    PRTL_CRITICAL_SECTION LoaderLock;
    ULONG OSMajorVersion;
    ULONG OSMinorVersion;
    USHORT OSBuildNumber;
    USHORT OSCSDVersion;
    ULONG OSPlatformId;
    ULONG ImageSubsystem;
    ULONG ImageSubsystemMajorVersion;
    ULONG ImageSubsystemMinorVersion;
    UCHAR Padding4[4];
    ULONGLONG ActiveProcessAffinityMask;
    ULONG GdiHandleBuffer[60];
    PVOID PostProcessInitRoutine;
    PVOID TlsExpansionBitmap;
    ULONG TlsExpansionBitmapBits[32];
    ULONG SessionId;
    UCHAR Padding5[4];
    ULARGE_INTEGER AppCompatFlags;
    ULARGE_INTEGER AppCompatFlagsUser;
    PVOID pShimData;
    PVOID AppCompatInfo;
    UNICODE_STRING CSDVersion;
    PACTIVATION_CONTEXT_DATA ActivationContextData;
    PASSEMBLY_STORAGE_MAP ProcessAssemblyStorageMap;
    PACTIVATION_CONTEXT_DATA SystemDefaultActivationContextData;
    PASSEMBLY_STORAGE_MAP SystemAssemblyStorageMap;
    ULONGLONG MinimumStackCommit;
    PFLS_CALLBACK_INFO FlsCallback;
    LIST_ENTRY FlsListHead;
    PVOID FlsBitmap;
    ULONG FlsBitmapBits[4];
    ULONG FlsHighIndex;
    PVOID WerRegistrationData;
    PVOID WerShipAssertPtr;
    PVOID pUnused;
    PVOID pImageHeaderHash;
    union {
        ULONG TracingFlags;
        struct {
            UCHAR HeapTracingEnabled : 1;
            UCHAR CritSecTracingEnabled : 1;
            UCHAR LibLoaderTracingEnabled : 1;
            ULONG SpareTracingBits : 29;
        };
    };
    UCHAR Padding6[4];
    ULONGLONG CsrServerReadOnlySharedMemoryBase;
    ULONGLONG TppWorkerpListLock;
    LIST_ENTRY TppWorkerpList;
    PVOID WaitOnAddressHashTable[128];
} PEB, *PPEB;

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Translates WinDbg "dt" structure dump to a C structure

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