1 /** 2 * Copyright © 2018 IBM Corporation 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #include "argument.hpp" 17 18 #include <cstdlib> 19 #include <iostream> 20 #include <utility> 21 22 namespace phosphor::certs::util 23 { 24 25 ArgumentParser::ArgumentParser(int argc, char** argv) 26 { 27 auto option = 0; 28 while (-1 != 29 (option = getopt_long(argc, argv, optionstr, options, nullptr))) 30 { 31 if ((option == '?') || (option == 'h')) 32 { 33 usage(argv); 34 exit(-1); 35 } 36 37 auto i = &options[0]; 38 while ((i->val != option) && (i->val != 0)) 39 { 40 ++i; 41 } 42 43 if (i->val) 44 { 45 arguments[i->name] = (i->has_arg ? optarg : true_string); 46 } 47 } 48 } 49 50 const std::string& ArgumentParser::operator[](const std::string& opt) 51 { 52 auto i = arguments.find(opt); 53 if (i == arguments.end()) 54 { 55 return empty_string; 56 } 57 else 58 { 59 return i->second; 60 } 61 } 62 63 void ArgumentParser::usage(char** argv) 64 { 65 std::cerr << "Usage: " << argv[0] << " [options]\n"; 66 std::cerr << "Options:\n"; 67 std::cerr << " --help Print this menu\n"; 68 std::cerr << " --type certificate type\n"; 69 std::cerr << " Valid types: client,server,authority\n"; 70 std::cerr << " --endpoint d-bus endpoint\n"; 71 std::cerr << " --path certificate file path\n"; 72 std::cerr << " --unit=<name> Optional systemd unit need to reload\n"; 73 std::cerr << std::flush; 74 } 75 76 const option ArgumentParser::options[] = { 77 {"type", required_argument, nullptr, 't'}, 78 {"endpoint", required_argument, nullptr, 'e'}, 79 {"path", required_argument, nullptr, 'p'}, 80 {"unit", optional_argument, nullptr, 'u'}, 81 {"help", no_argument, nullptr, 'h'}, 82 {0, 0, 0, 0}, 83 }; 84 85 const char* ArgumentParser::optionstr = "tepuh?"; 86 87 const std::string ArgumentParser::true_string = "true"; 88 const std::string ArgumentParser::empty_string = ""; 89 90 } // namespace phosphor::certs::util 91