52 lines
1.3 KiB
Java
52 lines
1.3 KiB
Java
/*
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* ZeroTier One - Network Virtualization Everywhere
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* Copyright (C) 2011-2023 ZeroTier, Inc. https://www.zerotier.com/
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*/
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package com.zerotier.sdk.util;
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public class StringUtils {
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/**
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* Convert mac address to string.
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*
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* @param mac MAC address
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* @return string in XX:XX:XX:XX:XX:XX format
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*/
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public static String macAddressToString(long mac) {
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int[] macChars = new int[6];
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for (int i = 0; i < 6; i++) {
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macChars[i] = (int) (mac % 256);
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mac >>= 8;
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}
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return String.format("%02x:%02x:%02x:%02x:%02x:%02x", macChars[5], macChars[4], macChars[3], macChars[2], macChars[1], macChars[0]);
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}
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/**
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* Convert long to hex string.
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*
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* @param networkId long
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* @return string with 0 padding
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*/
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public static String networkIdToString(long networkId) {
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return String.format("%016x", networkId);
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}
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/**
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* Convert node address to string.
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*
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* Node addresses are 40 bits, so print 10 hex characters.
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*
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* @param address Node address
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* @return formatted string
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*/
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public static String addressToString(long address) {
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return String.format("%010x", address);
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}
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public static String etherTypeToString(long etherType) {
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return String.format("%04x", etherType);
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}
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}
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