diff --git a/twrpDU.cpp b/twrpDU.cpp
new file mode 100644
index 0000000..66c8031
--- /dev/null
+++ b/twrpDU.cpp
@@ -0,0 +1,107 @@
+/*
+		Copyright 2013 TeamWin
+		This file is part of TWRP/TeamWin Recovery Project.
+
+		TWRP is free software: you can redistribute it and/or modify
+		it under the terms of the GNU General Public License as published by
+		the Free Software Foundation, either version 3 of the License, or
+		(at your option) any later version.
+
+		TWRP is distributed in the hope that it will be useful,
+		but WITHOUT ANY WARRANTY; without even the implied warranty of
+		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+		GNU General Public License for more details.
+
+		You should have received a copy of the GNU General Public License
+		along with TWRP.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+extern "C" {
+	#include "libtar/libtar.h"
+}
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <fstream>
+#include <string>
+#include <vector>
+#include "twrpDU.hpp"
+
+using namespace std;
+
+twrpDU::twrpDU() {
+		add_relative_dir(".");
+		add_relative_dir("..");
+		add_relative_dir("lost_found");
+		add_absolute_dir("/data/data/com.google.android.music/files");
+		parent = "";
+}
+
+void twrpDU::add_relative_dir(string dir) {
+	relativedir.push_back(dir);
+}
+
+void twrpDU::add_absolute_dir(string dir) {
+	absolutedir.push_back(dir);
+}
+
+vector<string> twrpDU::get_absolute_dirs(void) {
+	return absolutedir;
+}
+
+uint64_t twrpDU::Get_Folder_Size(const string& Path) {
+	DIR* d;
+	struct dirent* de;
+	struct stat st;
+	unsigned long long dusize = 0;
+	unsigned long long dutemp = 0;
+
+	parent = Path.substr(0, Path.find_last_of('/'));
+
+	d = opendir(Path.c_str());
+	if (d == NULL) {
+		LOGERR("error opening '%s'\n", Path.c_str());
+		LOGERR("error: %s\n", strerror(errno));
+		return 0;
+	}
+
+	while ((de = readdir(d)) != NULL)
+	{
+		bool skip_dir = false;
+		if (de->d_type == DT_DIR) {
+			string dir = de->d_name;
+			skip_dir = check_skip_dirs(dir);
+		}
+		if (de->d_type == DT_DIR && !skip_dir) {
+			dutemp = Get_Folder_Size((Path + "/" + de->d_name));
+			dusize += dutemp;
+			dutemp = 0;
+		}
+		else if (de->d_type == DT_REG) {
+			stat((Path + "/" + de->d_name).c_str(), &st);
+			dusize += (uint64_t)(st.st_size);
+		}
+	}
+	closedir(d);
+	return dusize;
+}
+
+bool twrpDU::check_skip_dirs(string& dir) {
+	bool result = false;
+	for (int i = 0; i < relativedir.size(); ++i) {
+		if (dir == relativedir.at(i)) {
+			result = true;
+			break;
+		}
+	}
+	for (int i = 0; i < absolutedir.size(); ++i) {
+		//string absdir = parent + dir;
+		if (dir == absolutedir.at(i)) {
+			result = true;
+			break;
+		}
+	}
+	return result;
+}