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+/*
+ Copyright 2012 to 2016 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>
+#include "exclude.hpp"
+#include "progresstracking.hpp"
+#include "partitions.hpp"
+#include "twrp-functions.hpp"
+
+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(pid_t *tar_fork_pid);
+ int extractTarFork();
+ void setfn(string fn);
+ void setdir(string dir);
+ void setsize(unsigned long long backup_size);
+ void setpassword(string pass);
+ unsigned long long get_size();
+ void Set_Archive_Type(Archive_Type archive_type);
+
+public:
+ int use_encryption;
+ int userdata_encryption;
+ int use_compression;
+ int split_archives;
+ string backup_name;
+ int progress_pipe_fd;
+ string partition_name;
+ string backup_folder;
+ PartitionSettings *part_settings;
+ TWExclude *backup_exclusions;
+
+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 removeEOT(string tarFile);
+ int extractTar();
+ string Strip_Root_Dir(string Path);
+ int openTar();
+ 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(std::vector<TarListStruct> *TarList, unsigned thread_id);
+ unsigned long long uncompressedSize(string filename);
+ static void Signal_Kill(int signum);
+
+ enum Archive_Type current_archive_type;
+ unsigned long long Archive_Current_Size;
+ unsigned long long Total_Backup_Size;
+ bool include_root_dir;
+ TAR *t;
+ tartype_t tar_type; // Only used in createTar() but variable must persist while the tar is open
+ int fd;
+ int input_fd; // this stores the fd for libtar to write to
+ pid_t pigz_pid;
+ pid_t oaes_pid;
+ unsigned long long file_count;
+
+ string tardir;
+ string tarfn;
+ string basefn;
+ string password;
+
+ std::vector<TarListStruct> *ItemList;
+ int output_fd; // this stores the output fd that gzip will read from
+ int adb_control_twrp_fd, adb_control_bu_fd; // fds for twrp to twrp bu and bu to twrp control fifos
+ unsigned thread_id;
+};