Я с открытым исходным кодом проект на Github, который специально проверяет распространяемые библиотеки VC ++ , и есть фрагмент кода, который я создал на основе функции из ответа Шэя, что успешно находит, загружает и проверяет DLL для совместимости с x86 / x64 .
Полный фрагмент кода ниже:
/******************************************************************
Function Name: CheckProductUsingCurrentDirectory
Description: Queries the current working directory for a given binary.
Inputs: pszProductFolderToCheck - the product name to look up.
pBinaryArchitecture - the desired processor architecture
of the binary (x86, x64, etc..).
Results: true if the requested product is installed
false otherwise
******************************************************************/
bool CheckProductUsingCurrentDirectory(const LPCTSTR pszProductBinaryToCheck, Architecture pBinaryArchitecture){
bool bFoundRequestedProduct = false;
//Get the length of the buffer first
TCHAR currentDirectory[MAX_PATH];
DWORD currentDirectoryChars = GetCurrentDirectory(MAX_PATH, currentDirectory);
//exit if couldn't get current directory
if (currentDirectoryChars <= 0) return bFoundRequestedProduct;
TCHAR searchPath[MAX_PATH];
//exit if we couldn't combine the path to the requested binary
if (PathCombine(searchPath, currentDirectory, pszProductBinaryToCheck) == NULL) return bFoundRequestedProduct;
WIN32_FIND_DATA FindFileData;
HANDLE hFind= FindFirstFile(searchPath, &FindFileData);
//exit if the binary was not found
if (hFind == INVALID_HANDLE_VALUE) return bFoundRequestedProduct;
HANDLE hFile = CreateFile(searchPath, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_READONLY, NULL);
if (hFile == INVALID_HANDLE_VALUE) goto cleanup;
HANDLE hMapping = CreateFileMapping(hFile, NULL, PAGE_READONLY | SEC_IMAGE, 0, 0, pszProductBinaryToCheck);
if (hMapping == INVALID_HANDLE_VALUE) goto cleanup;
LPVOID addrHeader = MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0);
if (addrHeader == NULL) goto cleanup; //couldn't memory map the file
PIMAGE_NT_HEADERS peHdr = ImageNtHeader(addrHeader);
if (peHdr == NULL) goto cleanup; //couldn't read the header
//Found the binary, AND its architecture matches. Success!
if (peHdr->FileHeader.Machine == pBinaryArchitecture){
bFoundRequestedProduct = true;
}
cleanup: //release all of our handles
FindClose(hFind);
if (hFile != INVALID_HANDLE_VALUE)
CloseHandle(hFile);
if (hMapping != INVALID_HANDLE_VALUE)
CloseHandle(hMapping);
return bFoundRequestedProduct;
}
Этот вопрос и ответ Шэя были полезны для меня, когда я создавал это, поэтому я решил опубликовать проект здесь.