1 files changed, 108 insertions, 0 deletions
diff --git a/OpenSim/Region/Environment/Modules/World/Archiver/TarArchiveReader.cs b/OpenSim/Region/Environment/Modules/World/Archiver/TarArchiveReader.cs
new file mode 100644
index 0000000..e785c6c
--- /dev/null
+++ b/OpenSim/Region/Environment/Modules/World/Archiver/TarArchiveReader.cs
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSim Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+using System;
+using System.IO;
+//using System.Reflection;
+//using log4net;
+namespace OpenSim.Region.Environment.Modules.World.Archiver
+{
+    /// <summary>
+    /// Temporary code to do the bare minimum required to read a tar archive for our purposes
+    /// </summary>
+    public class TarArchiveReader
+    {
+//        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+        
+        protected static System.Text.ASCIIEncoding m_asciiEncoding = new System.Text.ASCIIEncoding();
+        
+        /// <summary>
+        /// Binary reader for the underlying stream
+        /// </summary>
+        protected BinaryReader m_br;
+        
+        public TarArchiveReader(string archivePath)
+        {
+            m_br = new BinaryReader(new FileStream(archivePath, FileMode.Open));
+        }
+        
+        public byte[] Read(out string filePath)
+        {
+            TarHeader header = ReadHeader();
+            filePath = header.FilePath;
+            return m_br.ReadBytes(header.FileSize);
+        }
+        /// <summary>
+        /// Read the next 512 byte chunk of data as a tar header.
+        /// </summary>
+        /// <returns>A tar header struct</returns>
+        protected TarHeader ReadHeader()
+        {
+            TarHeader tarHeader = new TarHeader();
+            
+            byte[] header = m_br.ReadBytes(512);
+            
+            tarHeader.FilePath = m_asciiEncoding.GetString(header, 0, 100);
+            tarHeader.FileSize = ConvertOctalBytesToDecimal(header, 124, 11);
+            
+            return tarHeader;
+        }
+        
+        public void Close()
+        {
+            m_br.Close();
+        }
+        
+        /// <summary>
+        /// Convert octal bytes to a decimal representation
+        /// </summary>
+        /// <param name="bytes"></param>
+        /// <returns></returns>
+        public static int ConvertOctalBytesToDecimal(byte[] bytes, int startIndex, int count)
+        {           
+            string oString = m_asciiEncoding.GetString(bytes, startIndex, count);            
+            
+            int d = 0;
+                        
+            foreach (char c in oString)
+            {
+                d <<= 3;                
+                d |= c - '0';               
+            }
+            return d;
+        }        
+    }
+    
+    public struct TarHeader
+    {
+        public string FilePath;
+        public int FileSize;
+    }
+}

diff --git a/OpenSim/Region/Environment/Modules/World/Archiver/TarArchiveReader.cs b/OpenSim/Region/Environment/Modules/World/Archiver/TarArchiveReader.cs new file mode 100644 index 0000000..e785c6c --- /dev/null +++ b/OpenSim/Region/Environment/Modules/World/Archiver/TarArchiveReader.cs
@@ -0,0 +1,108 @@
	1	/*
	2	* Copyright (c) Contributors, http://opensimulator.org/
	3	* See CONTRIBUTORS.TXT for a full list of copyright holders.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions are met:
	7	* * Redistributions of source code must retain the above copyright
	8	* notice, this list of conditions and the following disclaimer.
	9	* * Redistributions in binary form must reproduce the above copyright
	10	* notice, this list of conditions and the following disclaimer in the
	11	* documentation and/or other materials provided with the distribution.
	12	* * Neither the name of the OpenSim Project nor the
	13	* names of its contributors may be used to endorse or promote products
	14	* derived from this software without specific prior written permission.
	15	*
	16	* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
	17	* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	18	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	19	* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
	20	* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	21	* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	22	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
	23	* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	24	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
	25	* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	26	*/
	27
	28	using System;
	29	using System.IO;
	30	//using System.Reflection;
	31	//using log4net;
	32
	33	namespace OpenSim.Region.Environment.Modules.World.Archiver
	34	{
	35	/// <summary>
	36	/// Temporary code to do the bare minimum required to read a tar archive for our purposes
	37	/// </summary>
	38	public class TarArchiveReader
	39	{
	40	// private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
	41
	42	protected static System.Text.ASCIIEncoding m_asciiEncoding = new System.Text.ASCIIEncoding();
	43
	44	/// <summary>
	45	/// Binary reader for the underlying stream
	46	/// </summary>
	47	protected BinaryReader m_br;
	48
	49	public TarArchiveReader(string archivePath)
	50	{
	51	m_br = new BinaryReader(new FileStream(archivePath, FileMode.Open));
	52	}
	53
	54	public byte[] Read(out string filePath)
	55	{
	56	TarHeader header = ReadHeader();
	57	filePath = header.FilePath;
	58	return m_br.ReadBytes(header.FileSize);
	59	}
	60
	61	/// <summary>
	62	/// Read the next 512 byte chunk of data as a tar header.
	63	/// </summary>
	64	/// <returns>A tar header struct</returns>
	65	protected TarHeader ReadHeader()
	66	{
	67	TarHeader tarHeader = new TarHeader();
	68
	69	byte[] header = m_br.ReadBytes(512);
	70
	71	tarHeader.FilePath = m_asciiEncoding.GetString(header, 0, 100);
	72	tarHeader.FileSize = ConvertOctalBytesToDecimal(header, 124, 11);
	73
	74	return tarHeader;
	75	}
	76
	77	public void Close()
	78	{
	79	m_br.Close();
	80	}
	81
	82	/// <summary>
	83	/// Convert octal bytes to a decimal representation
	84	/// </summary>
	85	/// <param name="bytes"></param>
	86	/// <returns></returns>
	87	public static int ConvertOctalBytesToDecimal(byte[] bytes, int startIndex, int count)
	88	{
	89	string oString = m_asciiEncoding.GetString(bytes, startIndex, count);
	90
	91	int d = 0;
	92
	93	foreach (char c in oString)
	94	{
	95	d <<= 3;
	96	d \|= c - '0';
	97	}
	98
	99	return d;
	100	}
	101	}
	102
	103	public struct TarHeader
	104	{
	105	public string FilePath;
	106	public int FileSize;
	107	}
	108	}