C / C++ / MFC

// Relocations.cpp : Defines the entry point for the console application.
//
 
#include "stdafx.h"
#include <iostream>
#include <windows.h>
using namespace std;
 
int main(int argc, char* argv[])
{
	// First get the DOS header.
	char *pBase = (char*)GetModuleHandle("kernel32.dll");
	PIMAGE_DOS_HEADER pDOS = (PIMAGE_DOS_HEADER)pBase;
	assert(pDOS->e_magic == IMAGE_DOS_SIGNATURE);
 
	// Get the NT headers.
	PIMAGE_NT_HEADERS pNT = (PIMAGE_NT_HEADERS)(pBase + pDOS->e_lfanew);
	assert(pNT->Signature == IMAGE_NT_SIGNATURE);
 
	// Now get the "optional" header.
	PIMAGE_OPTIONAL_HEADER pOpt = &(IMAGE_OPTIONAL_HEADER)(pNT->OptionalHeader);
	assert(pOpt->Magic == IMAGE_NT_OPTIONAL_HDR32_MAGIC);
 
	// Get a pointer to the relocation table and its size.
	PIMAGE_DATA_DIRECTORY pRelocDD = &(pOpt->DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC]);
	DWORD SizeOfRelocs = pRelocDD->Size;
	PIMAGE_BASE_RELOCATION pReloc = (PIMAGE_BASE_RELOCATION)(pBase + pRelocDD->VirtualAddress);
 
	for (DWORD ToGo = SizeOfRelocs; ToGo>0; /*Empty*/)
	{
		WORD *pRelocArray = (WORD*)(pReloc + 1);
		DWORD NumRelocs = (pReloc->SizeOfBlock - sizeof(IMAGE_BASE_RELOCATION)) / sizeof(WORD);
 
		for (DWORD i=0; i<NumRelocs; ++i)
		{
			WORD val = pRelocArray[i];
			WORD Type = val >> 12;
			WORD RVA = val & 0x0FFF;
 
			cout << hex << "Type = " << Type << ", Address = " << (DWORD)(pBase + pReloc->VirtualAddress + RVA) << endl;
		}
 
		ToGo -= pReloc->SizeOfBlock;
		pReloc = (PIMAGE_BASE_RELOCATION)((char*)pReloc + pReloc->SizeOfBlock);
	}
 
	return 0;
}

4288 wrote:

and OnPaint fails

4288 wrote:

but if I insert the OnPaint handler with Visual Studio, the control won't even show

Usef Marzbani wrote:

For example I don't know what "MaxBufferSize" means and so on...