diff --git a/tools/peek/ndnpoke/ndnpoke.hpp b/tools/peek/ndnpoke/ndnpoke.hpp
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+++ b/tools/peek/ndnpoke/ndnpoke.hpp
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+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2014-2018,  Regents of the University of California,
+ *                           Arizona Board of Regents,
+ *                           Colorado State University,
+ *                           University Pierre & Marie Curie, Sorbonne University,
+ *                           Washington University in St. Louis,
+ *                           Beijing Institute of Technology,
+ *                           The University of Memphis.
+ *
+ * This file is part of ndn-tools (Named Data Networking Essential Tools).
+ * See AUTHORS.md for complete list of ndn-tools authors and contributors.
+ *
+ * ndn-tools is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-tools 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * ndn-tools, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @author Jerald Paul Abraham <jeraldabraham@email.arizona.edu>
+ */
+
+#ifndef NDN_TOOLS_NDNPOKE_NDNPOKE_HPP
+#define NDN_TOOLS_NDNPOKE_NDNPOKE_HPP
+
+#include "core/common.hpp"
+
+namespace ndn {
+namespace peek {
+
+/**
+ * \brief options for NdnPoke
+ */
+struct PokeOptions
+{
+  Name prefixName;
+  bool wantForceData = false;
+  security::SigningInfo signingInfo;
+  bool wantLastAsFinalBlockId = false;
+  optional<time::milliseconds> freshnessPeriod = {};
+};
+
+class NdnPoke : boost::noncopyable
+{
+public:
+  NdnPoke(Face& face, KeyChain& keyChain, std::istream& inStream, const PokeOptions& options);
+
+  void
+  start();
+
+  bool
+  wasDataSent() const
+  {
+    return m_wasDataSent;
+  }
+
+public:
+  signal::Signal<NdnPoke> afterFinish;
+
+private:
+  shared_ptr<Data>
+  createDataPacket();
+
+  void
+  onInterest(const Name& name, const Interest& interest, const shared_ptr<Data>& data);
+
+  void
+  onRegisterFailed(const Name& prefix, const std::string& reason);
+
+private:
+  Face& m_face;
+  KeyChain& m_keyChain;
+  std::istream& m_inStream;
+  const PokeOptions& m_options;
+
+  bool m_wasDataSent;
+};
+
+} // namespace peek
+} // namespace ndn
+
+#endif // NDN_TOOLS_NDNPOKE_NDNPOKE_HPP