Disk ARchive 2.3.11
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00001 /*********************************************************************/ 00002 // dar - disk archive - a backup/restoration program 00003 // Copyright (C) 2002-2052 Denis Corbin 00004 // 00005 // This program is free software; you can redistribute it and/or 00006 // modify it under the terms of the GNU General Public License 00007 // as published by the Free Software Foundation; either version 2 00008 // of the License, or (at your option) any later version. 00009 // 00010 // This program is distributed in the hope that it will be useful, 00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 // GNU General Public License for more details. 00014 // 00015 // You should have received a copy of the GNU General Public License 00016 // along with this program; if not, write to the Free Software 00017 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00018 // 00019 // to contact the author : dar.linux@free.fr 00020 /*********************************************************************/ 00021 // $Id: header_version.hpp,v 1.12 2005/05/08 12:12:01 edrusb Rel $ 00022 // 00023 /*********************************************************************/ 00024 00028 00029 #ifndef HEADER_VERSION_HPP 00030 #define HEADER_VERSION_HPP 00031 00032 #include "../my_config.h" 00033 #include "infinint.hpp" 00034 #include "generic_file.hpp" 00035 #include "tools.hpp" 00036 00037 namespace libdar 00038 { 00039 const int VERSION_FLAG_SAVED_EA_ROOT = 0x80; // no more used since version "05" 00040 const int VERSION_FLAG_SAVED_EA_USER = 0x40; // no more used since version "05" 00041 const int VERSION_FLAG_SCRAMBLED = 0x20; // scrambled or strong encryption used 00042 const int VERSION_SIZE = 3; 00043 typedef char dar_version[VERSION_SIZE]; 00044 extern void version_copy(dar_version & dst, const dar_version & src); 00045 extern bool version_greater(const dar_version & left, const dar_version & right); 00046 // operation left > right 00047 00048 struct header_version 00049 { 00050 dar_version edition; 00051 char algo_zip; 00052 std::string cmd_line; 00053 unsigned char flag; // added at edition 02 00054 00055 void read(generic_file &f) 00056 { 00057 f.read(edition, sizeof(edition)); 00058 f.read(&algo_zip, sizeof(algo_zip)); 00059 tools_read_string(f, cmd_line); 00060 if(version_greater(edition, "01")) 00061 f.read((char *)&flag, (size_t)1); 00062 else 00063 flag = 0; 00064 }; 00065 void write(generic_file &f) 00066 { 00067 f.write(edition, sizeof(edition)); 00068 f.write(&algo_zip, sizeof(algo_zip)); 00069 tools_write_string(f, cmd_line); 00070 f.write((char *)&flag, (size_t)1); 00071 }; 00072 }; 00073 00074 } // end of namespace 00075 00076 #endif