Method getHostAddress

catvod/src/main/java/com/github/catvod/utils/Util.java:132–144

(String keyword)

    }

    private static String getHostAddress(String keyword) throws SocketException {
        for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements(); ) {
            NetworkInterface nif = en.nextElement();
            if (!keyword.isEmpty() && !nif.getName().startsWith(keyword)) continue;
            for (Enumeration<InetAddress> addresses = nif.getInetAddresses(); addresses.hasMoreElements(); ) {
                InetAddress addr = addresses.nextElement();
                if (!addr.isLoopbackAddress() && addr instanceof Inet4Address) {
                    return addr.getHostAddress();
                }
            }
        }
        return "";
    }
}