Method GetModuleInfo

src/StackWalker.cpp:696–734

  BOOL GetModuleInfo(HANDLE hProcess, DWORD64 baseAddr, IMAGEHLP_MODULE64_V2 *pModuleInfo)
  {
    if(this->pSGMI == NULL)
    {
      SetLastError(ERROR_DLL_INIT_FAILED);
      return FALSE;
    }
    // First try to use the larger ModuleInfo-Structure
//    memset(pModuleInfo, 0, sizeof(IMAGEHLP_MODULE64_V3));
//    pModuleInfo->SizeOfStruct = sizeof(IMAGEHLP_MODULE64_V3);
//    if (this->pSGMI_V3 != NULL)
//    {
//      if (this->pSGMI_V3(hProcess, baseAddr, pModuleInfo) != FALSE)
//        return TRUE;
//      // check if the parameter was wrong (size is bad...)
//      if (GetLastError() != ERROR_INVALID_PARAMETER)
//        return FALSE;
//    }
    // could not retrive the bigger structure, try with the smaller one (as defined in VC7.1)...
    pModuleInfo->SizeOfStruct = sizeof(IMAGEHLP_MODULE64_V2);
    void *pData = malloc(4096); // reserve enough memory, so the bug in v6.3.5.1 does not lead to memory-overwrites...
    if (pData == NULL)
    {
      SetLastError(ERROR_NOT_ENOUGH_MEMORY);
      return FALSE;
    }
    memcpy(pData, pModuleInfo, sizeof(IMAGEHLP_MODULE64_V2));
    if (this->pSGMI(hProcess, baseAddr, (IMAGEHLP_MODULE64_V2*) pData) != FALSE)
    {
      // only copy as much memory as is reserved...
      memcpy(pModuleInfo, pData, sizeof(IMAGEHLP_MODULE64_V2));
      pModuleInfo->SizeOfStruct = sizeof(IMAGEHLP_MODULE64_V2);
      free(pData);
      return TRUE;
    }
    free(pData);
    SetLastError(ERROR_DLL_INIT_FAILED);
    return FALSE;
  }
};

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