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diff --git a/lib/asio/generic/raw_protocol.hpp b/lib/asio/generic/raw_protocol.hpp
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+//
+// generic/raw_protocol.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_GENERIC_RAW_PROTOCOL_HPP
+#define ASIO_GENERIC_RAW_PROTOCOL_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#include <typeinfo>
+#include "asio/basic_raw_socket.hpp"
+#include "asio/detail/socket_types.hpp"
+#include "asio/detail/throw_exception.hpp"
+#include "asio/generic/basic_endpoint.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace generic {
+
+/// Encapsulates the flags needed for a generic raw socket.
+/**
+ * The asio::generic::raw_protocol class contains flags necessary for
+ * raw sockets of any address family and protocol.
+ *
+ * @par Examples
+ * Constructing using a native address family and socket protocol:
+ * @code raw_protocol p(AF_INET, IPPROTO_ICMP); @endcode
+ * Constructing from a specific protocol type:
+ * @code raw_protocol p(asio::ip::icmp::v4()); @endcode
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Safe.
+ *
+ * @par Concepts:
+ * Protocol.
+ */
+class raw_protocol
+{
+public:
+  /// Construct a protocol object for a specific address family and protocol.
+  raw_protocol(int address_family, int socket_protocol)
+    : family_(address_family),
+      protocol_(socket_protocol)
+  {
+  }
+
+  /// Construct a generic protocol object from a specific protocol.
+  /**
+   * @throws @c bad_cast Thrown if the source protocol is not raw-oriented.
+   */
+  template <typename Protocol>
+  raw_protocol(const Protocol& source_protocol)
+    : family_(source_protocol.family()),
+      protocol_(source_protocol.protocol())
+  {
+    if (source_protocol.type() != type())
+    {
+      std::bad_cast ex;
+      asio::detail::throw_exception(ex);
+    }
+  }
+
+  /// Obtain an identifier for the type of the protocol.
+  int type() const
+  {
+    return ASIO_OS_DEF(SOCK_RAW);
+  }
+
+  /// Obtain an identifier for the protocol.
+  int protocol() const
+  {
+    return protocol_;
+  }
+
+  /// Obtain an identifier for the protocol family.
+  int family() const
+  {
+    return family_;
+  }
+
+  /// Compare two protocols for equality.
+  friend bool operator==(const raw_protocol& p1, const raw_protocol& p2)
+  {
+    return p1.family_ == p2.family_ && p1.protocol_ == p2.protocol_;
+  }
+
+  /// Compare two protocols for inequality.
+  friend bool operator!=(const raw_protocol& p1, const raw_protocol& p2)
+  {
+    return !(p1 == p2);
+  }
+
+  /// The type of an endpoint.
+  typedef basic_endpoint<raw_protocol> endpoint;
+
+  /// The generic socket type.
+  typedef basic_raw_socket<raw_protocol> socket;
+
+private:
+  int family_;
+  int protocol_;
+};
+
+} // namespace generic
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_GENERIC_RAW_PROTOCOL_HPP