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

Sources/OpenVPN3/openvpn/addr/macaddr.hpp

@@ -0,0 +1,67 @@
+//    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_ADDR_MACADDR_H
+#define OPENVPN_ADDR_MACADDR_H
+
+#include <ostream>
+#include <cstring>
+#include <string>
+
+#include <openvpn/common/exception.hpp>
+#include <openvpn/common/ostream.hpp>
+#include <openvpn/common/hexstr.hpp>
+
+namespace openvpn {
+
+  // Fundamental class for representing an ethernet MAC address.
+
+  class MACAddr {
+  public:
+    MACAddr()
+    {
+      std::memset(addr_, 0, sizeof(addr_));
+    }
+
+    MACAddr(const unsigned char *addr)
+    {
+      reset(addr);
+    }
+
+    void reset(const unsigned char *addr)
+    {
+      std::memcpy(addr_, addr, sizeof(addr_));
+    }
+
+    std::string to_string() const
+    {
+      return render_hex_sep(addr_, sizeof(addr_), ':');
+    }
+
+  private:
+    unsigned char addr_[6];
+  };
+
+  OPENVPN_OSTREAM(MACAddr, to_string)
+
+} // namespace openvpn
+
+#endif // OPENVPN_ADDR_MACADDR_H