tools: nfdc face show command

refs #3864

Change-Id: Ibee7b082681edc35e8c272b2363436dbc7eaf9c0
diff --git a/tools/nfdc/execute-command.cpp b/tools/nfdc/execute-command.cpp
new file mode 100644
index 0000000..639fd19
--- /dev/null
+++ b/tools/nfdc/execute-command.cpp
@@ -0,0 +1,43 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2017,  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 NFD (Named Data Networking Forwarding Daemon).
+ * See AUTHORS.md for complete list of NFD authors and contributors.
+ *
+ * NFD 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.
+ *
+ * NFD 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
+ * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "execute-command.hpp"
+
+namespace nfd {
+namespace tools {
+namespace nfdc {
+
+Controller::DatasetFailCallback
+ExecuteContext::makeDatasetFailureHandler(const std::string& datasetName)
+{
+  return [=] (uint32_t code, const std::string& reason) {
+    this->exitCode = 1;
+    this->err << "Error " << code << " when fetching " << datasetName << ": " << reason << '\n';
+  };
+}
+
+} // namespace nfdc
+} // namespace tools
+} // namespace nfd