520 lines
16 KiB
C#
520 lines
16 KiB
C#
// 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);
|
|
}
|
|
}
|
|
}
|