+ static const regex regex_ip("\\d{1,3}.\\d{1,3}.\\d{1,3}.\\d{1,3}");
+ static const regex regex_user("[a-zA-Z]+");
+
+
+ if (argc != 5) {
+ std::cerr << "Usage: " << argv[0] << " <username> <password> <domain> <IP address>" << std::endl;
+ return 1;
+ }
+
+ /* Obtain and validate inpit */
+ std::string user = argv[1];
+ std::string password = argv[2];
+ std::string domain = argv[3];
+ std::string ip = argv[4];
+
+ if (!regex_match(ip, regex_ip)) {
+ std::cerr << "Invalid IP address " << ip << "." << std::endl;
+ return 1;
+ }
+ if (!regex_match(user, regex_user)) {
+ std::cerr << "Invalid username " << user << "." << std::endl;
+ return 1;
+ }
+
+ /* read configuration */
+ property_tree::ptree config;
+ property_tree::ini_parser::read_ini(CONFIG_FILE, config);
+ std::string keyfile = config.get<std::string>("key");
+
+ /* Check username, password, domain */
+ optional<std::string> correct_password = config.get_optional<std::string>(user+".password");
+ if (!correct_password || *correct_password != password) {
+ std::cerr << "Username or password incorrect." << std::endl;
+ return 1;
+ }
+ if (config.get<std::string>(user+".domain") != domain) {
+ std::cerr << "Domain incorrect." << std::endl;
+ return 1;
+ }
+
+ std::cout << "It's all right, using key " << keyfile << std::endl;
+