tools: modularize ndn-autoconfig-server

refs #4158

Change-Id: I90eb570e2ca2ae611d48aeb1e456712c1d148531
diff --git a/tools/ndn-autoconfig-server/main.cpp b/tools/ndn-autoconfig-server/main.cpp
new file mode 100644
index 0000000..3806d9a
--- /dev/null
+++ b/tools/ndn-autoconfig-server/main.cpp
@@ -0,0 +1,101 @@
+/* -*- 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 "program.hpp"
+#include "core/extended-error-message.hpp"
+#include "core/version.hpp"
+#include <unistd.h>
+
+namespace ndn {
+namespace tools {
+namespace autoconfig_server {
+
+static void
+usage(const char* programName)
+{
+  std::cout << "Usage:\n" << programName  << " [-h] [-V] [-p prefix] [-p prefix] ... hub-face\n"
+            << "  -h        - print usage and exit\n"
+            << "  -V        - print version number and exit\n"
+            << "  -p prefix - a local prefix of the HUB\n"
+            << "\n"
+            << "  hub-face  - a FaceUri to reach the HUB\n"
+            << std::endl;
+}
+
+int
+main(int argc, char** argv)
+{
+  Options options;
+
+  int opt = -1;
+  while ((opt = ::getopt(argc, argv, "hVp:")) != -1) {
+    switch (opt) {
+    case 'h':
+      usage(argv[0]);
+      return 0;
+    case 'V':
+      std::cout << NFD_VERSION_BUILD_STRING << std::endl;
+      return 0;
+    case 'p':
+      options.routablePrefixes.emplace_back(::optarg);
+      break;
+    default:
+      usage(argv[0]);
+      return 2;
+    }
+  }
+
+  if (argc != ::optind + 1) {
+    usage(argv[0]);
+    return 2;
+  }
+
+  if (!options.hubFaceUri.parse(argv[::optind])) {
+    std::cerr << "ERROR: cannot parse HUB FaceUri\n";
+    return 2;
+  }
+
+  try {
+    Face face;
+    KeyChain keyChain;
+    Program program(options, face, keyChain);
+    program.run();
+  }
+  catch (const std::exception& e) {
+    std::cerr << ::nfd::getExtendedErrorMessage(e) << std::endl;
+    return 1;
+  }
+  return 0;
+}
+
+} // namespace autoconfig_server
+} // namespace tools
+} // namespace ndn
+
+int
+main(int argc, char** argv)
+{
+  return ndn::tools::autoconfig_server::main(argc, argv);
+}