Mega Code Archive
Check if IP address match pattern
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/*
* This file is part of aion-emu <aion-emu.com>.
*
* aion-emu is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* aion-emu is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with aion-emu. If not, see <http://www.gnu.org/licenses/>.
*/
//package com.aionemu.commons.utils;
/**
* @author KID, -Nemesiss-
*/
public class NetworkUtils
{
/**
* check if IP address match pattern
*
* @param pattern
* *.*.*.* , 192.168.1.0-255 , *
* @param address
* - 192.168.1.1<BR>
* <code>address = 10.2.88.12 pattern = *.*.*.* result: true<BR>
* address = 10.2.88.12 pattern = * result: true<BR>
* address = 10.2.88.12 pattern = 10.2.88.12-13 result: true<BR>
* address = 10.2.88.12 pattern = 10.2.88.13-125 result: false<BR></code>
* @return true if address match pattern
*/
public static boolean checkIPMatching(String pattern, String address)
{
if (pattern.equals("*.*.*.*") || pattern.equals("*"))
return true;
String[] mask = pattern.split("\\.");
String[] ip_address = address.split("\\.");
for (int i = 0; i < mask.length; i++)
{
if (mask[i].equals("*") || mask[i].equals(ip_address[i]))
continue;
else if (mask[i].contains("-"))
{
byte min = Byte.parseByte(mask[i].split("-")[0]);
byte max = Byte.parseByte(mask[i].split("-")[1]);
byte ip = Byte.parseByte(ip_address[i]);
if (ip < min || ip > max)
return false;
}
else
return false;
}
return true;
}
}
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