actual freya branch

2026-09-12 15:41:31 +00:00
parent 8049e0a882
commit 68c1cd27d4
3510 changed files with 336689 additions and 302906 deletions
@@ -0,0 +1,160 @@
+/*
+ * $Header: Util.java, 14-Jul-2005 03:27:51 luisantonioa Exp $
+ * 
+ * $Author: luisantonioa $ $Date: 14-Jul-2005 03:27:51 $ $Revision: 1 $ $Log:
+ * Util.java,v $ Revision 1 14-Jul-2005 03:27:51 luisantonioa Added copyright
+ * notice
+ * 
+ * 
+ * This program 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.
+ * 
+ * This program 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
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.l2jserver.util;
+
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.net.UnknownHostException;
+import java.nio.ByteBuffer;
+
+/**
+ * This class ...
+ * @version $Revision: 1.2 $ $Date: 2004/06/27 08:12:59 $
+ */
+
+public class Util
+{
+	public static boolean isInternalIP(String ipAddress)
+	{
+		java.net.InetAddress addr = null;
+		try
+		{
+			addr = java.net.InetAddress.getByName(ipAddress);
+			return addr.isSiteLocalAddress() || addr.isLoopbackAddress();
+		}
+		catch (UnknownHostException e)
+		{
+			e.printStackTrace();
+		}
+		return false;
+	}
+	
+	public static String printData(byte[] data, int len)
+	{
+		final StringBuilder result = new StringBuilder(len * 4);
+		
+		int counter = 0;
+		
+		for (int i = 0; i < len; i++)
+		{
+			if ((counter % 16) == 0)
+			{
+				result.append(fillHex(i, 4) + ": ");
+			}
+			
+			result.append(fillHex(data[i] & 0xff, 2) + " ");
+			counter++;
+			if (counter == 16)
+			{
+				result.append("   ");
+				
+				int charpoint = i - 15;
+				for (int a = 0; a < 16; a++)
+				{
+					int t1 = 0xFF & data[charpoint++];
+					if ((t1 > 0x1f) && (t1 < 0x80))
+					{
+						result.append((char) t1);
+					}
+					else
+					{
+						result.append('.');
+					}
+				}
+				
+				result.append("\n");
+				counter = 0;
+			}
+		}
+		
+		int rest = data.length % 16;
+		if (rest > 0)
+		{
+			for (int i = 0; i < (17 - rest); i++)
+			{
+				result.append("   ");
+			}
+			
+			int charpoint = data.length - rest;
+			for (int a = 0; a < rest; a++)
+			{
+				int t1 = 0xFF & data[charpoint++];
+				if ((t1 > 0x1f) && (t1 < 0x80))
+				{
+					result.append((char) t1);
+				}
+				else
+				{
+					result.append('.');
+				}
+			}
+			
+			result.append("\n");
+		}
+		
+		return result.toString();
+	}
+	
+	public static String fillHex(int data, int digits)
+	{
+		String number = Integer.toHexString(data);
+		
+		for (int i = number.length(); i < digits; i++)
+		{
+			number = "0" + number;
+		}
+		
+		return number;
+	}
+	
+	/**
+	 * @param raw
+	 * @return
+	 */
+	public static String printData(byte[] raw)
+	{
+		return printData(raw, raw.length);
+	}
+	
+	public static String printData(ByteBuffer buf)
+	{
+		byte[] data = new byte[buf.remaining()];
+		buf.get(data);
+		String hex = Util.printData(data, data.length);
+		buf.position(buf.position() - data.length);
+		return hex;
+	}
+	
+	public static byte[] generateHex(int size)
+	{
+		byte[] array = new byte[size];
+		Rnd.nextBytes(array);
+		return array;
+	}
+	
+	public static String getStackTrace(Throwable t)
+	{
+		StringWriter sw = new StringWriter();
+		t.printStackTrace(new PrintWriter(sw));
+		return sw.toString();
+	}
+}