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// untar.cpp: a simple tar extracting program (Unicode version) |
// untar.cpp: a simple tar extracting program (Unicode version) |
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// Copyright Takeshi Mouri 2008. |
// Copyright Takeshi Mouri 2008-2018. |
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// Distributed under the Boost Software License, Version 1.0. |
// Distributed under the Boost Software License, Version 1.0. |
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// (See accompanying file LICENSE_1_0.txt or copy at |
// (See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
// http://www.boost.org/LICENSE_1_0.txt) |
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#endif |
#endif |
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} |
} |
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template<class Path> |
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bool is_valid_path(const Path& ph) |
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{ |
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#if !defined(HAMIGAKI_ALLOW_DIRECTORY_TRAVERSAL) |
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if (ph.has_root_name() || ph.has_root_directory()) |
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return false; |
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for (typename Path::iterator it = ph.begin(); it != ph.end(); ++it) |
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{ |
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if (*it == L"..") |
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return false; |
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} |
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#endif |
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return true; |
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} |
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int main(int argc, char* argv[]) |
int main(int argc, char* argv[]) |
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{ |
{ |
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try |
try |
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const ar::tar::wheader& head = tar.header(); |
const ar::tar::wheader& head = tar.header(); |
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std::wcout << head.path << std::endl; |
std::wcout << head.path << std::endl; |
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if (!is_valid_path(head.path)) |
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{ |
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std::cerr << "Warning: invalid path" << '\n'; |
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continue; |
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} |
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if (head.type_flag == ar::tar::type_flag::link) |
if (head.type_flag == ar::tar::type_flag::link) |
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{ |
{ |
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