added wuntar.cpp
hamigaki/trunk/libs/archivers/example/Jamfile.v2 (diff)
hamigaki/trunk/libs/archivers/example/wuntar.cpp (diff)| @@ -0,0 +1,106 @@ | ||
| 1 | +// untar.cpp: a simple tar extracting program (Unicode version) | |
| 2 | + | |
| 3 | +// Copyright Takeshi Mouri 2008. | |
| 4 | +// Distributed under the Boost Software License, Version 1.0. | |
| 5 | +// (See accompanying file LICENSE_1_0.txt or copy at | |
| 6 | +// http://www.boost.org/LICENSE_1_0.txt) | |
| 7 | + | |
| 8 | +// See http://hamigaki.sourceforge.jp/libs/archivers for library home page. | |
| 9 | + | |
| 10 | + | |
| 11 | +// Security warning: | |
| 12 | +// This program never check the validity of paths in the archive. | |
| 13 | +// See http://www.forest.impress.co.jp/article/2004/07/30/arcsecurity.html . | |
| 14 | +// (The above link is Japanese site) | |
| 15 | + | |
| 16 | + | |
| 17 | +#include <hamigaki/archivers/tar_file.hpp> | |
| 18 | +#include <hamigaki/filesystem/operations.hpp> | |
| 19 | +#include <boost/filesystem/convenience.hpp> | |
| 20 | +#include <boost/filesystem/fstream.hpp> | |
| 21 | +#include <boost/iostreams/copy.hpp> | |
| 22 | +#include <clocale> | |
| 23 | +#include <exception> | |
| 24 | +#include <iostream> | |
| 25 | + | |
| 26 | +namespace ar = hamigaki::archivers; | |
| 27 | +namespace fs_ex = hamigaki::filesystem; | |
| 28 | +namespace io_ex = hamigaki::iostreams; | |
| 29 | +namespace fs = boost::filesystem; | |
| 30 | +namespace io = boost::iostreams; | |
| 31 | + | |
| 32 | +int main(int argc, char* argv[]) | |
| 33 | +{ | |
| 34 | + try | |
| 35 | + { | |
| 36 | + if (argc != 2) | |
| 37 | + { | |
| 38 | + std::cerr << "Usage: untar (archive)" << std::endl; | |
| 39 | + return 1; | |
| 40 | + } | |
| 41 | + | |
| 42 | + std::setlocale(LC_ALL, ""); | |
| 43 | + | |
| 44 | + ar::wtar_file_source tar(argv[1]); | |
| 45 | + | |
| 46 | + while (tar.next_entry()) | |
| 47 | + { | |
| 48 | + const ar::tar::wheader& head = tar.header(); | |
| 49 | + | |
| 50 | + std::wcout << head.path << std::endl; | |
| 51 | + | |
| 52 | + if (head.type_flag == ar::tar::type_flag::link) | |
| 53 | + { | |
| 54 | + if (head.path.has_branch_path()) | |
| 55 | + fs::create_directories(head.path.branch_path()); | |
| 56 | + | |
| 57 | + fs_ex::create_hard_link(head.link_path, head.path); | |
| 58 | + } | |
| 59 | + else if (head.type_flag == ar::tar::type_flag::symlink) | |
| 60 | + { | |
| 61 | + if (head.path.has_branch_path()) | |
| 62 | + fs::create_directories(head.path.branch_path()); | |
| 63 | + | |
| 64 | + fs_ex::create_symlink(head.link_path, head.path); | |
| 65 | + } | |
| 66 | + else if (head.type_flag == ar::tar::type_flag::directory) | |
| 67 | + fs::create_directories(head.path); | |
| 68 | + else if (head.type_flag == ar::tar::type_flag::char_device) | |
| 69 | + std::cerr << "Warning: skip character device\n"; | |
| 70 | + else if (head.type_flag == ar::tar::type_flag::block_device) | |
| 71 | + std::cerr << "Warning: skip block device\n"; | |
| 72 | + else if (head.type_flag == ar::tar::type_flag::fifo) | |
| 73 | + std::cerr << "Warning: skip FIFO file\n"; | |
| 74 | + // Note: All unknown types are treated as a regular file. | |
| 75 | + else | |
| 76 | + { | |
| 77 | + if (head.path.has_branch_path()) | |
| 78 | + fs::create_directories(head.path.branch_path()); | |
| 79 | + | |
| 80 | + fs::ofstream os(head.path, std::ios_base::binary); | |
| 81 | + io::copy(tar, os); | |
| 82 | + } | |
| 83 | + | |
| 84 | + // Note: | |
| 85 | + // The POSIX chown() clears S_ISUID/S_ISGID bits. | |
| 86 | + // So, we must call change_symlink_owner() | |
| 87 | + // before calling change_permissions(). | |
| 88 | + fs_ex::error_code ec; | |
| 89 | + fs_ex::change_symlink_owner(head.path, head.uid, head.gid, ec); | |
| 90 | + | |
| 91 | + fs_ex::change_permissions(head.path, head.permissions, ec); | |
| 92 | + | |
| 93 | + if (head.modified_time) | |
| 94 | + fs_ex::last_write_time(head.path, *head.modified_time); | |
| 95 | + if (head.access_time) | |
| 96 | + fs_ex::last_access_time(head.path, *head.access_time); | |
| 97 | + } | |
| 98 | + | |
| 99 | + return 0; | |
| 100 | + } | |
| 101 | + catch (const std::exception& e) | |
| 102 | + { | |
| 103 | + std::cerr << "Error: " << e.what() << std::endl; | |
| 104 | + } | |
| 105 | + return 1; | |
| 106 | +} |
