Merge commit '86cc97e55fe346502462284d2e636a2b3708163e' as 'Sources/OpenVPN3'

2026-04-24 00:00:05 +08:00 · 2020-02-24 14:43:11 +03:00
parent 133b3756e6 86cc97e55f
commit 32f1555929
655 changed files with 146468 additions and 0 deletions
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+//    OpenVPN -- An application to securely tunnel IP networks
+//               over a single port, with support for SSL/TLS-based
+//               session authentication and key exchange,
+//               packet encryption, packet authentication, and
+//               packet compression.
+//
+//    Copyright (C) 2012-2017 OpenVPN Inc.
+//
+//    This program is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Affero General Public License Version 3
+//    as published by the Free Software Foundation.
+//
+//    This program 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 Affero General Public License for more details.
+//
+//    You should have received a copy of the GNU Affero General Public License
+//    along with this program in the COPYING file.
+//    If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef OPENVPN_COMMON_ENUMDIR_H
+#define OPENVPN_COMMON_ENUMDIR_H
+
+#include <sys/types.h>
+#include <dirent.h>
+
+#include <string>
+#include <vector>
+#include <utility>
+#include <memory>
+#include <algorithm>
+
+#include <openvpn/common/size.hpp>
+#include <openvpn/common/exception.hpp>
+#include <openvpn/common/uniqueptr.hpp>
+
+namespace openvpn {
+  OPENVPN_EXCEPTION(enum_dir_error);
+
+  template <typename F>
+  inline bool enum_dir(const std::string& dirname,
+		       F func)
+  {
+    unique_ptr_del<DIR> dir(::opendir(dirname.c_str()), [](DIR* d) { ::closedir(d); });
+    if (!dir)
+      return false;
+
+    struct dirent *e;
+    while ((e = ::readdir(dir.get())) != nullptr)
+      {
+	std::string fn(e->d_name);
+	if (fn != "." && fn != "..")
+	  func(std::move(fn));
+      }
+    return true;
+  }
+
+  inline std::vector<std::string> enum_dir(const std::string& dirname,
+					   const size_t size_hint=0,
+					   const bool sort=false)
+  {
+    std::vector<std::string> ret;
+    if (size_hint)
+      ret.reserve(size_hint);
+
+    if (!enum_dir(dirname, [&ret](std::string fn) {
+	  ret.push_back(std::move(fn));
+	}))
+      throw enum_dir_error(dirname + ": cannot open directory");
+
+    if (sort)
+      std::sort(ret.begin(), ret.end());
+
+    return ret;
+  }
+
+}
+
+#endif