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/>.
+
+// scoped HANDLE for windows
+
+#ifndef OPENVPN_WIN_SCOPED_HANDLE_H
+#define OPENVPN_WIN_SCOPED_HANDLE_H
+
+#include <windows.h>
+
+#include <openvpn/common/size.hpp>
+#include <openvpn/win/handle.hpp>
+
+namespace openvpn {
+  namespace Win {
+    class ScopedHANDLE
+    {
+      ScopedHANDLE(const ScopedHANDLE&) = delete;
+      ScopedHANDLE& operator=(const ScopedHANDLE&) = delete;
+
+    public:
+      typedef HANDLE base_type;
+
+      ScopedHANDLE() : handle(Handle::undefined()) {}
+
+      explicit ScopedHANDLE(HANDLE h)
+	: handle(h) {}
+
+      HANDLE release()
+      {
+	const HANDLE ret = handle;
+	handle = nullptr;
+	return ret;
+      }
+
+      bool defined() const
+      {
+	return Handle::defined(handle);
+      }
+
+      HANDLE operator()() const
+      {
+	return handle;
+      }
+
+      HANDLE* ref()
+      {
+	return &handle;
+      }
+
+      void reset(HANDLE h)
+      {
+	close();
+	handle = h;
+      }
+
+      void reset()
+      {
+	close();
+      }
+
+      // unusual semantics: replace handle without closing it first
+      void replace(HANDLE h)
+      {
+	handle = h;
+      }
+
+      bool close()
+      {
+	if (defined())
+	  {
+	    __try
+	      {
+		const BOOL ret = ::CloseHandle(handle);
+		//OPENVPN_LOG("**** SH CLOSE hand=" << handle << " ret=" << ret);
+		handle = nullptr;
+		return ret != 0;
+	      }
+	    __except (EXCEPTION_EXECUTE_HANDLER)
+	      {
+		return false;
+	      }
+	  }
+	else
+	  return true;
+      }
+
+      ~ScopedHANDLE()
+      {
+	close();
+      }
+
+      ScopedHANDLE(ScopedHANDLE&& other) noexcept
+      {
+	handle = other.handle;
+	other.handle = nullptr;
+      }
+
+      ScopedHANDLE& operator=(ScopedHANDLE&& other) noexcept
+      {
+	close();
+	handle = other.handle;
+	other.handle = nullptr;
+	return *this;
+      }
+
+    private:
+      HANDLE handle;
+    };
+
+  }
+}
+
+#endif