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/*
        Copyright 2012 bigbiff/Dees_Troy 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>

using namespace std;

struct TarListStruct {
	std::string fn;
	unsigned thread_id;
};

struct thread_data_struct {
	std::vector<TarListStruct> *TarList;
	unsigned thread_id;
};

class twrpTar {
	public:
		twrpTar();
		virtual ~twrpTar();
		int createTarFork();
		int extractTarFork();
		int splitArchiveFork();
		void setexcl(string exclude);
		void setfn(string fn);
		void setdir(string dir);
		unsigned long long uncompressedSize();
		
	public:
		int use_encryption;
		int userdata_encryption;
		int use_compression;
		int split_archives;
		int has_data_media;
		string backup_name;

	private:
		int extract();
		int addFilesToExistingTar(vector <string> files, string tarFile);
		int createTar();
		int addFile(string fn, bool include_root);
		int entryExists(string entry);
		int closeTar();
		int create();
		int Split_Archive();
		int removeEOT(string tarFile);
		int extractTar();
		int tarDirs(bool include_root);
		int Generate_Multiple_Archives(string Path);
		string Strip_Root_Dir(string Path);
		int openTar();
		int Archive_File_Count;
		int Archive_Current_Type;
		unsigned long long Archive_Current_Size;
		TAR *t;
		int fd;
		pid_t pigz_pid;
		pid_t oaes_pid;

		string tardir;
		string tarfn;
		string basefn;
		string tarexclude;

		vector<string> split;

		int Generate_TarList(string Path, std::vector<TarListStruct> *TarList, unsigned long long *Target_Size, unsigned *thread_id);
		static void* createList(void *cookie);
		static void* extractMulti(void *cookie);
		int tarList(bool include_root, std::vector<TarListStruct> *TarList, unsigned thread_id);
		std::vector<TarListStruct> *ItemList;
		int thread_id;
};