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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;
namespace SharpCifs.Smb
{
internal class SmbComWriteAndX : AndXServerMessageBlock
{
private static readonly int ReadAndxBatchLimit = Config.GetInt("jcifs.smb.client.WriteAndX.ReadAndX"
, 1);
private static readonly int CloseBatchLimit = Config.GetInt("jcifs.smb.client.WriteAndX.Close"
, 1);
private int _fid;
private int _remaining;
private int _dataLength;
private int _dataOffset;
private int _off;
private byte[] _b;
private long _offset;
private int _pad;
internal int WriteMode;
public SmbComWriteAndX() : base(null)
{
Command = SmbComWriteAndx;
}
internal SmbComWriteAndX(int fid, long offset, int remaining, byte[] b, int off,
int len, ServerMessageBlock andx) : base(andx)
{
this._fid = fid;
this._offset = offset;
this._remaining = remaining;
this._b = b;
this._off = off;
_dataLength = len;
Command = SmbComWriteAndx;
}
internal virtual void SetParam(int fid, long offset, int remaining, byte[] b, int
off, int len)
{
this._fid = fid;
this._offset = offset;
this._remaining = remaining;
this._b = b;
this._off = off;
_dataLength = len;
Digest = null;
}
internal override int GetBatchLimit(byte command)
{
if (command == SmbComReadAndx)
{
return ReadAndxBatchLimit;
}
if (command == SmbComClose)
{
return CloseBatchLimit;
}
return 0;
}
internal override int WriteParameterWordsWireFormat(byte[] dst, int dstIndex)
{
int start = dstIndex;
_dataOffset = (dstIndex - HeaderStart) + 26;
// 26 = off from here to pad
_pad = (_dataOffset - HeaderStart) % 4;
_pad = _pad == 0 ? 0 : 4 - _pad;
_dataOffset += _pad;
WriteInt2(_fid, dst, dstIndex);
dstIndex += 2;
WriteInt4(_offset, dst, dstIndex);
dstIndex += 4;
for (int i = 0; i < 4; i++)
{
dst[dstIndex++] = 0xFF;
}
WriteInt2(WriteMode, dst, dstIndex);
dstIndex += 2;
WriteInt2(_remaining, dst, dstIndex);
dstIndex += 2;
dst[dstIndex++] = 0x00;
dst[dstIndex++] =0x00;
WriteInt2(_dataLength, dst, dstIndex);
dstIndex += 2;
WriteInt2(_dataOffset, dst, dstIndex);
dstIndex += 2;
WriteInt4(_offset >> 32, dst, dstIndex);
dstIndex += 4;
return dstIndex - start;
}
internal override int WriteBytesWireFormat(byte[] dst, int dstIndex)
{
int start = dstIndex;
while (_pad-- > 0)
{
dst[dstIndex++] = 0xEE;
}
Array.Copy(_b, _off, dst, dstIndex, _dataLength);
dstIndex += _dataLength;
return dstIndex - start;
}
internal override int ReadParameterWordsWireFormat(byte[] buffer, int bufferIndex
)
{
return 0;
}
internal override int ReadBytesWireFormat(byte[] buffer, int bufferIndex)
{
return 0;
}
public override string ToString()
{
return "SmbComWriteAndX[" + base.ToString() + ",fid=" + _fid + ",offset="
+ _offset + ",writeMode=" + WriteMode + ",remaining=" + _remaining + ",dataLength="
+ _dataLength + ",dataOffset=" + _dataOffset + "]";
}
}
}
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