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diff --git a/Emby.Server.Implementations/IO/SharpCifs/Smb/SmbRandomAccessFile.cs b/Emby.Server.Implementations/IO/SharpCifs/Smb/SmbRandomAccessFile.cs
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+++ b/Emby.Server.Implementations/IO/SharpCifs/Smb/SmbRandomAccessFile.cs
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+// This code is derived from jcifs smb client library <jcifs at samba dot org>
+// Ported by J. Arturo <webmaster at komodosoft dot net>
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library 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
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+using System;
+using System.IO;
+using System.Text;
+using SharpCifs.Util;
+using SharpCifs.Util.Sharpen;
+
+namespace SharpCifs.Smb
+{
+ public class SmbRandomAccessFile //: DataOutput, DataInput
+ {
+ private const int WriteOptions = unchecked(0x0842);
+
+ private SmbFile _file;
+
+ private long _fp;
+
+ private int _openFlags;
+
+ private int _access;
+
+ private int _readSize;
+
+ private int _writeSize;
+
+ private int _ch;
+
+ private int _options;
+
+ private byte[] _tmp = new byte[8];
+
+ private SmbComWriteAndXResponse _writeAndxResp;
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ /// <exception cref="System.UriFormatException"></exception>
+ /// <exception cref="UnknownHostException"></exception>
+ public SmbRandomAccessFile(string url, string mode, int shareAccess) : this(new SmbFile
+ (url, string.Empty, null, shareAccess), mode)
+ {
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ /// <exception cref="System.UriFormatException"></exception>
+ /// <exception cref="UnknownHostException"></exception>
+ public SmbRandomAccessFile(SmbFile file, string mode)
+ {
+ this._file = file;
+ if (mode.Equals("r"))
+ {
+ _openFlags = SmbFile.OCreat | SmbFile.ORdonly;
+ }
+ else
+ {
+ if (mode.Equals("rw"))
+ {
+ _openFlags = SmbFile.OCreat | SmbFile.ORdwr | SmbFile.OAppend;
+ _writeAndxResp = new SmbComWriteAndXResponse();
+ _options = WriteOptions;
+ _access = SmbConstants.FileReadData | SmbConstants.FileWriteData;
+ }
+ else
+ {
+ throw new ArgumentException("Invalid mode");
+ }
+ }
+ file.Open(_openFlags, _access, SmbFile.AttrNormal, _options);
+ _readSize = file.Tree.Session.transport.RcvBufSize - 70;
+ _writeSize = file.Tree.Session.transport.SndBufSize - 70;
+ _fp = 0L;
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public virtual int Read()
+ {
+ if (Read(_tmp, 0, 1) == -1)
+ {
+ return -1;
+ }
+ return _tmp[0] & unchecked(0xFF);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public virtual int Read(byte[] b)
+ {
+ return Read(b, 0, b.Length);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public virtual int Read(byte[] b, int off, int len)
+ {
+ if (len <= 0)
+ {
+ return 0;
+ }
+ long start = _fp;
+ // ensure file is open
+ if (_file.IsOpen() == false)
+ {
+ _file.Open(_openFlags, 0, SmbFile.AttrNormal, _options);
+ }
+ int r;
+ int n;
+ SmbComReadAndXResponse response = new SmbComReadAndXResponse(b, off);
+ do
+ {
+ r = len > _readSize ? _readSize : len;
+ _file.Send(new SmbComReadAndX(_file.Fid, _fp, r, null), response);
+ if ((n = response.DataLength) <= 0)
+ {
+ return (int)((_fp - start) > 0L ? _fp - start : -1);
+ }
+ _fp += n;
+ len -= n;
+ response.Off += n;
+ }
+ while (len > 0 && n == r);
+ return (int)(_fp - start);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public void ReadFully(byte[] b)
+ {
+ ReadFully(b, 0, b.Length);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public void ReadFully(byte[] b, int off, int len)
+ {
+ int n = 0;
+ int count;
+ do
+ {
+ count = Read(b, off + n, len - n);
+ if (count < 0)
+ {
+ throw new SmbException("EOF");
+ }
+ n += count;
+ _fp += count;
+ }
+ while (n < len);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public virtual int SkipBytes(int n)
+ {
+ if (n > 0)
+ {
+ _fp += n;
+ return n;
+ }
+ return 0;
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public virtual void Write(int b)
+ {
+ _tmp[0] = unchecked((byte)b);
+ Write(_tmp, 0, 1);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public virtual void Write(byte[] b)
+ {
+ Write(b, 0, b.Length);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public virtual void Write(byte[] b, int off, int len)
+ {
+ if (len <= 0)
+ {
+ return;
+ }
+ // ensure file is open
+ if (_file.IsOpen() == false)
+ {
+ _file.Open(_openFlags, 0, SmbFile.AttrNormal, _options);
+ }
+ int w;
+ do
+ {
+ w = len > _writeSize ? _writeSize : len;
+ _file.Send(new SmbComWriteAndX(_file.Fid, _fp, len - w, b, off, w, null), _writeAndxResp
+ );
+ _fp += _writeAndxResp.Count;
+ len -= (int)_writeAndxResp.Count;
+ off += (int)_writeAndxResp.Count;
+ }
+ while (len > 0);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public virtual long GetFilePointer()
+ {
+ return _fp;
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public virtual void Seek(long pos)
+ {
+ _fp = pos;
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public virtual long Length()
+ {
+ return _file.Length();
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public virtual void SetLength(long newLength)
+ {
+ // ensure file is open
+ if (_file.IsOpen() == false)
+ {
+ _file.Open(_openFlags, 0, SmbFile.AttrNormal, _options);
+ }
+ SmbComWriteResponse rsp = new SmbComWriteResponse();
+ _file.Send(new SmbComWrite(_file.Fid, (int)(newLength & unchecked(0xFFFFFFFFL)), 0, _tmp, 0, 0), rsp);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public virtual void Close()
+ {
+ _file.Close();
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public bool ReadBoolean()
+ {
+ if ((Read(_tmp, 0, 1)) < 0)
+ {
+ throw new SmbException("EOF");
+ }
+ return _tmp[0] != unchecked(unchecked(0x00));
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public byte ReadByte()
+ {
+ if ((Read(_tmp, 0, 1)) < 0)
+ {
+ throw new SmbException("EOF");
+ }
+ return _tmp[0];
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public int ReadUnsignedByte()
+ {
+ if ((Read(_tmp, 0, 1)) < 0)
+ {
+ throw new SmbException("EOF");
+ }
+ return _tmp[0] & unchecked(0xFF);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public short ReadShort()
+ {
+ if ((Read(_tmp, 0, 2)) < 0)
+ {
+ throw new SmbException("EOF");
+ }
+ return Encdec.Dec_uint16be(_tmp, 0);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public int ReadUnsignedShort()
+ {
+ if ((Read(_tmp, 0, 2)) < 0)
+ {
+ throw new SmbException("EOF");
+ }
+ return Encdec.Dec_uint16be(_tmp, 0) & unchecked(0xFFFF);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public char ReadChar()
+ {
+ if ((Read(_tmp, 0, 2)) < 0)
+ {
+ throw new SmbException("EOF");
+ }
+ return (char)Encdec.Dec_uint16be(_tmp, 0);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public int ReadInt()
+ {
+ if ((Read(_tmp, 0, 4)) < 0)
+ {
+ throw new SmbException("EOF");
+ }
+ return Encdec.Dec_uint32be(_tmp, 0);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public long ReadLong()
+ {
+ if ((Read(_tmp, 0, 8)) < 0)
+ {
+ throw new SmbException("EOF");
+ }
+ return Encdec.Dec_uint64be(_tmp, 0);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public float ReadFloat()
+ {
+ if ((Read(_tmp, 0, 4)) < 0)
+ {
+ throw new SmbException("EOF");
+ }
+ return Encdec.Dec_floatbe(_tmp, 0);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public double ReadDouble()
+ {
+ if ((Read(_tmp, 0, 8)) < 0)
+ {
+ throw new SmbException("EOF");
+ }
+ return Encdec.Dec_doublebe(_tmp, 0);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public string ReadLine()
+ {
+ StringBuilder input = new StringBuilder();
+ int c = -1;
+ bool eol = false;
+ while (!eol)
+ {
+ switch (c = Read())
+ {
+ case -1:
+ case '\n':
+ {
+ eol = true;
+ break;
+ }
+
+ case '\r':
+ {
+ eol = true;
+ long cur = _fp;
+ if (Read() != '\n')
+ {
+ _fp = cur;
+ }
+ break;
+ }
+
+ default:
+ {
+ input.Append((char)c);
+ break;
+ }
+ }
+ }
+ if ((c == -1) && (input.Length == 0))
+ {
+ return null;
+ }
+ return input.ToString();
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public string ReadUtf()
+ {
+ int size = ReadUnsignedShort();
+ byte[] b = new byte[size];
+ Read(b, 0, size);
+ try
+ {
+ return Encdec.Dec_utf8(b, 0, size);
+ }
+ catch (IOException ioe)
+ {
+ throw new SmbException(string.Empty, ioe);
+ }
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public void WriteBoolean(bool v)
+ {
+ _tmp[0] = unchecked((byte)(v ? 1 : 0));
+ Write(_tmp, 0, 1);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public void WriteByte(int v)
+ {
+ _tmp[0] = unchecked((byte)v);
+ Write(_tmp, 0, 1);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public void WriteShort(int v)
+ {
+ Encdec.Enc_uint16be((short)v, _tmp, 0);
+ Write(_tmp, 0, 2);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public void WriteChar(int v)
+ {
+ Encdec.Enc_uint16be((short)v, _tmp, 0);
+ Write(_tmp, 0, 2);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public void WriteInt(int v)
+ {
+ Encdec.Enc_uint32be(v, _tmp, 0);
+ Write(_tmp, 0, 4);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public void WriteLong(long v)
+ {
+ Encdec.Enc_uint64be(v, _tmp, 0);
+ Write(_tmp, 0, 8);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public void WriteFloat(float v)
+ {
+ Encdec.Enc_floatbe(v, _tmp, 0);
+ Write(_tmp, 0, 4);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public void WriteDouble(double v)
+ {
+ Encdec.Enc_doublebe(v, _tmp, 0);
+ Write(_tmp, 0, 8);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public void WriteBytes(string s)
+ {
+ byte[] b = Runtime.GetBytesForString(s);
+ Write(b, 0, b.Length);
+ }
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ /* public void WriteChars(string s)
+ {
+ int clen = s.Length;
+ int blen = 2 * clen;
+ byte[] b = new byte[blen];
+ char[] c = new char[clen];
+ Sharpen.Runtime.GetCharsForString(s, 0, clen, c, 0);
+ for (int i = 0, j = 0; i < clen; i++)
+ {
+ b[j++] = unchecked((byte)((char)(((uchar)c[i]) >> 8)));
+ b[j++] = unchecked((byte)((char)(((uchar)c[i]) >> 0)));
+ }
+ Write(b, 0, blen);
+ }*/
+
+ /// <exception cref="SharpCifs.Smb.SmbException"></exception>
+ public void WriteUtf(string str)
+ {
+ int len = str.Length;
+ int ch;
+ int size = 0;
+ byte[] dst;
+ for (int i = 0; i < len; i++)
+ {
+ ch = str[i];
+ size += ch > unchecked(0x07F) ? (ch > unchecked(0x7FF) ? 3 : 2) : 1;
+ }
+ dst = new byte[size];
+ WriteShort(size);
+ try
+ {
+ Encdec.Enc_utf8(str, dst, 0, size);
+ }
+ catch (IOException ioe)
+ {
+ throw new SmbException(string.Empty, ioe);
+ }
+ Write(dst, 0, size);
+ }
+ }
+}
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