Method isValidIPv4Address

lib/java/net/URI.java:638–666

(String host)

        }

        private boolean isValidIPv4Address(String host) {
            int index;
            int index2;
            try {
                int num;
                index = host.indexOf('.');
                num = Integer.parseInt(host.substring(0, index));
                if (num < 0 || num > 255) {
                    return false;
                }
                index2 = host.indexOf('.', index + 1);
                num = Integer.parseInt(host.substring(index + 1, index2));
                if (num < 0 || num > 255) {
                    return false;
                }
                index = host.indexOf('.', index2 + 1);
                num = Integer.parseInt(host.substring(index2 + 1, index));
                if (num < 0 || num > 255) {
                    return false;
                }
                num = Integer.parseInt(host.substring(index + 1));
                if (num < 0 || num > 255) {
                    return false;
                }
            } catch (Exception e) {
                return false;
            }
            return true;
        }

        private boolean isValidIP6Address(String ipAddress) {
            int length = ipAddress.length();