mirror of
https://github.com/deneraraujo/OpenVPNAdapter.git
synced 2026-01-31 00:00:06 +08:00
81 lines
2.2 KiB
C++
81 lines
2.2 KiB
C++
// OpenVPN -- An application to securely tunnel IP networks
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// over a single port, with support for SSL/TLS-based
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// session authentication and key exchange,
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// packet encryption, packet authentication, and
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// packet compression.
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//
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// Copyright (C) 2012-2017 OpenVPN Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License Version 3
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// as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program in the COPYING file.
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// If not, see <http://www.gnu.org/licenses/>.
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#ifndef OPENVPN_COMMON_ENUMDIR_H
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#define OPENVPN_COMMON_ENUMDIR_H
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#include <sys/types.h>
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#include <dirent.h>
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#include <string>
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#include <vector>
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#include <utility>
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#include <memory>
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#include <algorithm>
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#include <openvpn/common/size.hpp>
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#include <openvpn/common/exception.hpp>
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#include <openvpn/common/uniqueptr.hpp>
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namespace openvpn {
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OPENVPN_EXCEPTION(enum_dir_error);
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template <typename F>
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inline bool enum_dir(const std::string& dirname,
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F func)
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{
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unique_ptr_del<DIR> dir(::opendir(dirname.c_str()), [](DIR* d) { ::closedir(d); });
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if (!dir)
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return false;
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struct dirent *e;
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while ((e = ::readdir(dir.get())) != nullptr)
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{
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std::string fn(e->d_name);
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if (fn != "." && fn != "..")
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func(std::move(fn));
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}
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return true;
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}
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inline std::vector<std::string> enum_dir(const std::string& dirname,
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const size_t size_hint=0,
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const bool sort=false)
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{
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std::vector<std::string> ret;
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if (size_hint)
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ret.reserve(size_hint);
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if (!enum_dir(dirname, [&ret](std::string fn) {
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ret.push_back(std::move(fn));
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}))
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throw enum_dir_error(dirname + ": cannot open directory");
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if (sort)
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std::sort(ret.begin(), ret.end());
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return ret;
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}
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}
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#endif
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