dump: import code from ndndump repository

Code is copied from ndndump:commit:c266031924d723b9a73be29ebb66fd6db26aade5,
with minor changes for removing trailing whitespaces.
Build script is rewritten.

refs #2692

Change-Id: I07eec2f87542f1328b851cc2c4e5c9b6279db7da
diff --git a/tools/dump/main.cpp b/tools/dump/main.cpp
new file mode 100644
index 0000000..c8cff68
--- /dev/null
+++ b/tools/dump/main.cpp
@@ -0,0 +1,132 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2011-2014, Regents of the University of California,
+ *
+ * This file is part of ndndump, the packet capture and analysis tool for Named Data
+ * Networking (NDN).
+ *
+ * ndndump 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.
+ *
+ * ndndump 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
+ * ndndump, e.g., in COPYING file.  If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+#include "ndndump.hpp"
+
+#include <boost/program_options/options_description.hpp>
+#include <boost/program_options/variables_map.hpp>
+#include <boost/program_options/parsers.hpp>
+
+namespace po = boost::program_options;
+
+namespace boost {
+
+void
+validate(boost::any& v,
+         const std::vector<std::string>& values,
+         boost::regex*, int)
+{
+  po::validators::check_first_occurrence(v);
+  const std::string& str = po::validators::get_single_string(values);
+  v = boost::any(boost::regex(str));
+}
+
+} // namespace boost
+
+void
+usage(std::ostream& os, const std::string& appName, const po::options_description& options)
+{
+  os << "Usage:\n"
+     << "  " << appName << " [-i interface] [-f name-filter] [tcpdump-expression] \n"
+     << "\n"
+     << "Default tcpdump-expression:\n"
+     << "  '(ether proto 0x8624) || (tcp port 6363) || (udp port 6363)'\n"
+     << "\n";
+  os << options;
+}
+
+int
+main(int argc, char* argv[])
+{
+  ndn::tools::Ndndump instance;
+
+  po::options_description visibleOptions;
+  visibleOptions.add_options()
+    ("help,h", "Produce this help message")
+    ("interface,i", po::value<std::string>(&instance.interface),
+     "Interface from which to dump packets")
+    ("read,r", po::value<std::string>(&instance.inputFile),
+     "Read  packets  from file")
+    ("verbose,v",
+     "When  parsing  and  printing, produce verbose output")
+    // ("write,w", po::value<std::string>(&instance.outputFile),
+    //  "Write the raw packets to file rather than parsing and printing them out")
+    ("filter,f", po::value<boost::regex>(&instance.nameFilter),
+     "Regular expression to filter out Interest and Data packets")
+    ;
+
+  po::options_description hiddenOptions;
+  hiddenOptions.add_options()
+    ("pcap-program", po::value<std::vector<std::string> >());
+  ;
+
+  po::positional_options_description positionalArguments;
+  positionalArguments
+    .add("pcap-program", -1);
+
+  po::options_description allOptions;
+  allOptions
+    .add(visibleOptions)
+    .add(hiddenOptions)
+    ;
+
+  po::variables_map vm;
+
+  try {
+    po::store(po::command_line_parser(argc, argv)
+                .options(allOptions)
+                .positional(positionalArguments)
+                .run(),
+              vm);
+    po::notify(vm);
+  }
+  catch (std::exception& e) {
+    std::cerr << "ERROR: " << e.what() << std::endl << std::endl;
+    usage(std::cerr, argv[0], visibleOptions);
+    return 1;
+  }
+
+  if (vm.count("help") > 0) {
+    usage(std::cout, argv[0], visibleOptions);
+    return 0;
+  }
+
+  if (vm.count("verbose") > 0) {
+    instance.isVerbose = true;
+  }
+
+  if (vm.count("pcap-program") > 0) {
+    typedef std::vector<std::string> Strings;
+    const Strings& items = vm["pcap-program"].as<Strings>();
+
+    std::ostringstream os;
+    std::copy(items.begin(), items.end(), std::ostream_iterator<std::string>(os, " "));
+    instance.pcapProgram = os.str();
+  }
+
+  if (vm.count("read") > 0 && vm.count("interface") > 0) {
+    std::cerr << "ERROR: Conflicting -r and -i options" << std::endl;
+    usage(std::cerr, argv[0], visibleOptions);
+    return 2;
+  }
+
+  instance.run();
+
+  return 0;
+}