public static void main()

in kerby-tool/client-tool/src/main/java/org/apache/kerby/kerberos/tool/kinit/KinitTool.java [299:359]
53 lines of code
17 McCabe index (conditional complexity)

    public static void main(String[] args) {
        KOptions ktOptions = new KOptions();
        KinitOption kto;
        String principal = null;

        int i = 0;
        String opt, param, error;
        while (i < args.length) {
            error = null;

            opt = args[i++];
            if (opt.startsWith("-")) {
                kto = KinitOption.fromName(opt);
                if (kto == KinitOption.NONE) {
                    error = "Invalid option:" + opt;
                    System.err.println(error);
                    break;
                }
            } else {
                principal = opt;
                kto = KinitOption.NONE;
            }

            if (kto != KinitOption.NONE && kto.getOptionInfo().getType() != KOptionType.NOV) {
                // require a parameter
                param = null;
                if (i < args.length) {
                    param = args[i++];
                }
                if (param != null) {
                    KOptions.parseSetValue(kto.getOptionInfo(), param);
                } else {
                    error = "Option " + opt + " require a parameter";
                }
            }

            if (error != null) {
                printUsage(error);
            }
            if (kto != KinitOption.NONE) {
                ktOptions.add(kto);
            }
        }

        if (!ktOptions.contains(KinitOption.CONF_DIR)) {
            printUsage("No conf dir given.");
        }

        if (principal == null) {
            if (ktOptions.contains(KinitOption.ANONYMOUS)) {
                principal = KrbConstant.ANONYMOUS_PRINCIPAL;
            } else if (!ktOptions.contains(KinitOption.SERVICE) && !ktOptions.contains(KinitOption.KRB5_CACHE)) {
                printUsage("No principal is specified");
            } else if (ktOptions.contains(KinitOption.SERVICE) && !ktOptions.contains(KinitOption.KRB5_CACHE)) {
                printKvnoUsage("No credential cache file given.");
            }
        }

        requestTicket(principal, ktOptions);
        System.exit(0);
    }