Davide Pesavento
da85e25e59
Also unify style of argv declaration Change-Id: I1dcb8689b1cd38e042a0b1f05be7f98bd2d487ed
121 lines
3.2 KiB
C++
121 lines
3.2 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2014-2019, Regents of the University of California.
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*
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* This file is part of ndn-tools (Named Data Networking Essential Tools).
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* See AUTHORS.md for complete list of ndn-tools authors and contributors.
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*
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* ndn-tools is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Foundation,
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* either version 3 of the License, or (at your option) any later version.
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*
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* ndn-tools is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* ndn-tools, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "ndn-dissect.hpp"
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#include "core/version.hpp"
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#include <boost/program_options/options_description.hpp>
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#include <boost/program_options/variables_map.hpp>
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#include <boost/program_options/parsers.hpp>
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#include <fstream>
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namespace po = boost::program_options;
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namespace ndn {
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namespace dissect {
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static void
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usage(std::ostream& os, const std::string& appName, const po::options_description& options)
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{
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os << "Usage:\n"
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<< " " << appName << " [input-file] \n"
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<< "\n"
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<< options;
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}
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static int
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main(int argc, char* argv[])
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{
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po::options_description visibleOptions;
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visibleOptions.add_options()
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("help,h", "Print help and exit.")
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("version,V", "Print version and exit.")
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;
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std::string inputFileName;
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po::options_description hiddenOptions;
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hiddenOptions.add_options()
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("input-file", po::value<std::string>(&inputFileName));
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;
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po::positional_options_description positionalArguments;
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positionalArguments
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.add("input-file", -1);
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po::options_description allOptions;
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allOptions
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.add(visibleOptions)
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.add(hiddenOptions)
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;
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po::variables_map vm;
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try {
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po::store(po::command_line_parser(argc, argv)
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.options(allOptions)
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.positional(positionalArguments)
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.run(),
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vm);
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po::notify(vm);
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}
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catch (const po::error& e) {
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std::cerr << "ERROR: " << e.what() << std::endl << std::endl;
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usage(std::cerr, argv[0], visibleOptions);
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return 2;
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}
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if (vm.count("help") > 0) {
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usage(std::cout, argv[0], visibleOptions);
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return 0;
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}
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if (vm.count("version") > 0) {
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std::cout << "ndn-dissect " << tools::VERSION << std::endl;
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return 0;
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}
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std::ifstream inputFile;
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std::istream* inputStream;
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if (vm.count("input-file") > 0 && inputFileName != "-") {
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inputFile.open(inputFileName);
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if (!inputFile.is_open()) {
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std::cerr << argv[0] << ": " << inputFileName << ": File does not exist or is unreadable" << std::endl;
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return 3;
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}
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inputStream = &inputFile;
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}
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else {
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inputStream = &std::cin;
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}
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NdnDissect program;
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program.dissect(std::cout, *inputStream);
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return 0;
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}
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} // namespace dissect
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} // namespace ndn
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int
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main(int argc, char* argv[])
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{
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return ndn::dissect::main(argc, argv);
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}
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