From 7b4cfbbb67d628f95bf4d82ffc0bff2338476617 Mon Sep 17 00:00:00 2001
From: vxunderground <57078196+vxunderground@users.noreply.github.com>
Date: Sun, 17 Jul 2022 22:41:22 -0500
Subject: [PATCH] Create RecursiveFindFile.cpp

---
 Windows API/RecursiveFindFile.cpp | 224 ++++++++++++++++++++++++++++++
 1 file changed, 224 insertions(+)
 create mode 100644 Windows API/RecursiveFindFile.cpp

diff --git a/Windows API/RecursiveFindFile.cpp b/Windows API/RecursiveFindFile.cpp
new file mode 100644
index 0000000..7dc6ac6
--- /dev/null
+++ b/Windows API/RecursiveFindFile.cpp	
@@ -0,0 +1,224 @@
+PVOID UserDefinedCallbackRoutineA(LPCSTR Path)
+{
+	return 0;
+}
+
+BOOL UnusedSubroutineRecursiveFindFileMainA(LPCSTR Path, LPCSTR Pattern, PVOID pfnPathCombineW)
+{
+	typedef LPWSTR(WINAPI* PATHCOMBINEA)(LPCSTR, LPCSTR, LPCSTR);
+	PATHCOMBINEA PathCombineA = (PATHCOMBINEA)pfnPathCombineW;
+
+	HANDLE HeapHandle = RfGetProcessHeap();
+	CHAR szFullPattern[MAX_PATH] = { 0 };
+	WIN32_FIND_DATAA FindData = { 0 };
+	HANDLE FindHandle = INVALID_HANDLE_VALUE;
+
+
+	if (PathCombineA(szFullPattern, Path, "*") == NULL)
+		goto EXIT_ROUTINE;
+
+	FindHandle = FindFirstFileA(szFullPattern, &FindData);
+	if (FindHandle == INVALID_HANDLE_VALUE)
+		goto EXIT_ROUTINE;
+
+	do
+	{
+		if (FindData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
+		{
+			if (FindData.cFileName[0] == '.')
+				continue;
+
+			if (FindData.cFileName[0] == '$')
+				continue;
+
+			RfZeroMemory(szFullPattern, MAX_PATH);
+			if (PathCombineA(szFullPattern, Path, FindData.cFileName) == NULL)
+				goto EXIT_ROUTINE;
+
+			UnusedSubroutineRecursiveFindFileMainA(szFullPattern, Pattern, PathCombineA);
+		}
+
+	} while (FindNextFileA(FindHandle, &FindData));
+
+	if (FindHandle)
+		FindClose(FindHandle);
+
+	if (PathCombineA(szFullPattern, Path, Pattern) == NULL)
+		goto EXIT_ROUTINE;
+
+	FindHandle = FindFirstFileA(szFullPattern, &FindData);
+	if (FindHandle == INVALID_HANDLE_VALUE)
+		goto EXIT_ROUTINE;
+
+	do
+	{
+		RfZeroMemory(szFullPattern, MAX_PATH);
+		if (!(FindData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
+		{
+			if (PathCombineA(szFullPattern, Path, FindData.cFileName) == NULL)
+				goto EXIT_ROUTINE;
+
+			if (IsPathValidA(szFullPattern))
+			{
+				UserDefinedCallbackRoutineA(szFullPattern);
+			}
+		}
+
+	} while (FindNextFileA(FindHandle, &FindData));
+
+
+	if (FindHandle)
+		FindClose(FindHandle);
+
+	return TRUE;
+
+EXIT_ROUTINE:
+
+	if (FindHandle)
+		FindClose(FindHandle);
+
+	return FALSE;
+}
+
+BOOL RecursiveFindFileA(LPCSTR Path, LPCSTR Pattern)
+{
+	typedef LPWSTR(WINAPI* PATHCOMBINEA)(LPCSTR, LPCSTR, LPCSTR);
+	PATHCOMBINEA PathCombineA = NULL;
+	HMODULE hShlwapi = NULL;
+	BOOL bIsNewlyLoaded = FALSE;
+	BOOL bFlag = FALSE;
+
+	hShlwapi = RfGetModuleHandleW(L"Shlwapi.dll");
+	if (hShlwapi == NULL)
+	{
+		bIsNewlyLoaded = TRUE;
+		hShlwapi = LoadLibraryW(L"Shlwapi.dll");
+		if (hShlwapi == NULL)
+			goto EXIT_ROUTINE;
+	}
+
+	PathCombineA = (PATHCOMBINEA)RfGetProcAddressA((DWORD64)hShlwapi, "PathCombineW");
+	if (PathCombineA == NULL)
+		goto EXIT_ROUTINE;
+
+	bFlag = UnusedSubroutineRecursiveFindFileMainA(Path, Pattern, PathCombineA);
+
+EXIT_ROUTINE:
+
+	if (hShlwapi != NULL)
+		FreeLibrary(hShlwapi);
+
+	return bFlag;
+}
+
+PVOID UserDefinedCallbackRoutineW(LPCWSTR Path)
+{
+	return 0;
+}
+
+BOOL UnusedSubroutineRecursiveFindFileMainW(LPCWSTR Path, LPCWSTR Pattern, PVOID pfnPathCombineW)
+{
+	typedef LPWSTR(WINAPI* PATHCOMBINEW)(LPCWSTR, LPCWSTR, LPCWSTR);
+	PATHCOMBINEW PathCombineW = (PATHCOMBINEW)pfnPathCombineW;
+
+	HANDLE HeapHandle = RfGetProcessHeap();
+	WCHAR szFullPattern[MAX_PATH] = { 0 };
+	WIN32_FIND_DATAW FindData = { 0 };
+	HANDLE FindHandle = INVALID_HANDLE_VALUE;
+
+	if (PathCombineW(szFullPattern, Path, L"*") == NULL)
+		goto EXIT_ROUTINE;
+
+	FindHandle = FindFirstFileW(szFullPattern, &FindData);
+	if (FindHandle == INVALID_HANDLE_VALUE)
+		goto EXIT_ROUTINE;
+
+	do
+	{
+		if (FindData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
+		{
+			if (FindData.cFileName[0] == '.')
+				continue;
+
+			if (FindData.cFileName[0] == '$')
+				continue;
+
+			RfZeroMemory(szFullPattern, MAX_PATH);
+			if (PathCombineW(szFullPattern, Path, FindData.cFileName) == NULL)
+				goto EXIT_ROUTINE;
+
+			UnusedSubroutineRecursiveFindFileMainW(szFullPattern, Pattern, PathCombineW);
+		}
+
+	} while (FindNextFileW(FindHandle, &FindData));
+
+	if (FindHandle)
+		FindClose(FindHandle);
+
+	if (PathCombineW(szFullPattern, Path, Pattern) == NULL)
+		goto EXIT_ROUTINE;
+
+	FindHandle = FindFirstFileW(szFullPattern, &FindData);
+	if (FindHandle == INVALID_HANDLE_VALUE)
+		goto EXIT_ROUTINE;
+
+	do
+	{
+		RfZeroMemory(szFullPattern, MAX_PATH);
+		if (!(FindData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
+		{
+			if (PathCombineW(szFullPattern, Path, FindData.cFileName) == NULL)
+				goto EXIT_ROUTINE;
+
+			if (IsPathValidW(szFullPattern))
+			{
+				UserDefinedCallbackRoutineW(szFullPattern);
+			}
+		}
+
+	} while (FindNextFileW(FindHandle, &FindData));
+
+
+	if (FindHandle)
+		FindClose(FindHandle);
+
+	return TRUE;
+
+EXIT_ROUTINE:
+
+	if (FindHandle)
+		FindClose(FindHandle);
+
+	return FALSE;
+}
+
+BOOL RecursiveFindFileW(LPCWSTR Path, LPCWSTR Pattern)
+{
+	typedef LPWSTR(WINAPI* PATHCOMBINEW)(LPCWSTR, LPCWSTR, LPCWSTR);
+	PATHCOMBINEW PathCombineW = NULL;
+	HMODULE hShlwapi = NULL;
+	BOOL bIsNewlyLoaded = FALSE;
+	BOOL bFlag = FALSE;
+
+	hShlwapi = RfGetModuleHandleW(L"Shlwapi.dll");
+	if (hShlwapi == NULL)
+	{
+		bIsNewlyLoaded = TRUE;
+		hShlwapi = LoadLibraryW(L"Shlwapi.dll");
+		if (hShlwapi == NULL)
+			goto EXIT_ROUTINE;
+	}
+
+	PathCombineW = (PATHCOMBINEW)RfGetProcAddressA((DWORD64)hShlwapi, "PathCombineW");
+	if (PathCombineW == NULL)
+		goto EXIT_ROUTINE;
+
+	bFlag = UnusedSubroutineRecursiveFindFileMainW(Path, Pattern, PathCombineW);
+
+EXIT_ROUTINE:
+
+	if (hShlwapi != NULL)
+		FreeLibrary(hShlwapi);
+
+	return bFlag;
+}