From f95b6081cba084d1b067acea99c0effa2b3bf42c Mon Sep 17 00:00:00 2001
From: MW
Date: Thu, 24 May 2007 12:35:32 +0000
Subject: Renamed the new Directories. (removed the "-Source" from the end of
 them)

---
 Common/OpenSim.Framework/Util.cs | 151 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 151 insertions(+)
 create mode 100644 Common/OpenSim.Framework/Util.cs

(limited to 'Common/OpenSim.Framework/Util.cs')

diff --git a/Common/OpenSim.Framework/Util.cs b/Common/OpenSim.Framework/Util.cs
new file mode 100644
index 0000000..400f415
--- /dev/null
+++ b/Common/OpenSim.Framework/Util.cs
@@ -0,0 +1,151 @@
+using System;
+using System.Security.Cryptography;
+using System.Collections.Generic;
+using System.Text;
+using libsecondlife;
+using libsecondlife.Packets;
+
+namespace OpenSim.Framework.Utilities
+{
+    public class Util
+    {
+        private static Random randomClass = new Random();
+        private static uint nextXferID = 5000;
+        private static object XferLock = new object();
+
+        public static ulong UIntsToLong(uint X, uint Y)
+        {
+            return Helpers.UIntsToLong(X, Y);
+        }
+
+        public static Random RandomClass
+        {
+            get
+            {
+                return randomClass;
+            }
+        }
+
+        public static uint GetNextXferID()
+        {
+            uint id = 0;
+            lock(XferLock)
+            {
+                id = nextXferID;
+                nextXferID++;
+            }
+            return id;
+        }
+
+        public static int UnixTimeSinceEpoch()
+        {
+            TimeSpan t = (DateTime.UtcNow - new DateTime(1970, 1, 1));
+            int timestamp = (int)t.TotalSeconds;
+            return timestamp;
+        }
+
+        public static string Md5Hash(string pass)
+        {
+            MD5 md5 = MD5CryptoServiceProvider.Create();
+            byte[] dataMd5 = md5.ComputeHash(Encoding.Default.GetBytes(pass));
+            StringBuilder sb = new StringBuilder();
+            for (int i = 0; i < dataMd5.Length; i++)
+                sb.AppendFormat("{0:x2}", dataMd5[i]);
+            return sb.ToString();
+        }
+
+        //public static int fast_distance2d(int x, int y)
+        //{
+        //    x = System.Math.Abs(x);
+        //    y = System.Math.Abs(y);
+
+        //    int min = System.Math.Min(x, y);
+
+        //    return (x + y - (min >> 1) - (min >> 2) + (min >> 4));
+        //}
+
+        public static string FieldToString(byte[] bytes)
+        {
+            return FieldToString(bytes, String.Empty);
+        }
+
+        /// <summary>
+        /// Convert a variable length field (byte array) to a string, with a
+        /// field name prepended to each line of the output
+        /// </summary>
+        /// <remarks>If the byte array has unprintable characters in it, a 
+        /// hex dump will be put in the string instead</remarks>
+        /// <param name="bytes">The byte array to convert to a string</param>
+        /// <param name="fieldName">A field name to prepend to each line of output</param>
+        /// <returns>An ASCII string or a string containing a hex dump, minus 
+        /// the null terminator</returns>
+        public static string FieldToString(byte[] bytes, string fieldName)
+        {
+            // Check for a common case
+            if (bytes.Length == 0) return String.Empty;
+
+            StringBuilder output = new StringBuilder();
+            bool printable = true;
+
+            for (int i = 0; i < bytes.Length; ++i)
+            {
+                // Check if there are any unprintable characters in the array
+                if ((bytes[i] < 0x20 || bytes[i] > 0x7E) && bytes[i] != 0x09
+                    && bytes[i] != 0x0D && bytes[i] != 0x0A && bytes[i] != 0x00)
+                {
+                    printable = false;
+                    break;
+                }
+            }
+
+            if (printable)
+            {
+                if (fieldName.Length > 0)
+                {
+                    output.Append(fieldName);
+                    output.Append(": ");
+                }
+
+                if (bytes[bytes.Length - 1] == 0x00)
+                    output.Append(UTF8Encoding.UTF8.GetString(bytes, 0, bytes.Length - 1));
+                else
+                    output.Append(UTF8Encoding.UTF8.GetString(bytes));
+            }
+            else
+            {
+                for (int i = 0; i < bytes.Length; i += 16)
+                {
+                    if (i != 0)
+                        output.Append(Environment.NewLine);
+                    if (fieldName.Length > 0)
+                    {
+                        output.Append(fieldName);
+                        output.Append(": ");
+                    }
+
+                    for (int j = 0; j < 16; j++)
+                    {
+                        if ((i + j) < bytes.Length)
+                            output.Append(String.Format("{0:X2} ", bytes[i + j]));
+                        else
+                            output.Append("   ");
+                    }
+
+                    for (int j = 0; j < 16 && (i + j) < bytes.Length; j++)
+                    {
+                        if (bytes[i + j] >= 0x20 && bytes[i + j] < 0x7E)
+                            output.Append((char)bytes[i + j]);
+                        else
+                            output.Append(".");
+                    }
+                }
+            }
+
+            return output.ToString();
+        }
+        public Util()
+        {
+
+        }
+    }
+}
-- 
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