internal virtual bool Read(NfsPacket packet)
{
root = packet.GetUInt(); // the first long in the packet is the handle of the root
handle = packet.GetUInt(); // the next long is the handle of the file
@readonly = packet.GetUInt(); // the next is a read only flag
// The rest is nothing. There are 32 bytes in a FileHandle and this has read in 3 words, or 12 bytes.
packet.Advance(32 - 3 * 4);
return(true);
}
public NfsPacket Write(uint xid, NfsPacket packet)
{
string fileName = null;
try {
// read info out of packet
FileHandle fh = new FileHandle(packet);
uint beginoffset = packet.GetUInt();
uint offset = packet.GetUInt();
uint totalcount = packet.GetUInt();
// next comes the data which is a uint of size and the bytes.
uint datalen = packet.GetUInt();
uint packetOffset = (uint)packet.Position;
packet.Advance(datalen);
// carry out the write operation
fileName = HandleManager.Current.GetName(fh.Handle);
if (fileName == null)
{
throw new NFSException(xid, (uint)NfsReply.ERR_STALE);
}
// XXX comment out print lines to improve performance
// System.out.print("Write(" + fileName + ", " + offset + ", " +
// datalen + ")\n");
using (StreamWriter sw = new StreamWriter(fileName)) {
sw.BaseStream.Seek(offset, SeekOrigin.Begin);
sw.BaseStream.Write(packet.Data, (int)packetOffset, (int)datalen);
}
// load in new file attributes
NfsFileAttributes fa = new NfsFileAttributes();
fa.Load(fileName);
// create the reply packet
NfsPacket result = new NfsPacket(128);
result.Reset();
result.AddReplyHeader(xid);
result.SetUInt((uint)NfsReply.OK);
fa.Emit(ref result);
return(result);
}
catch (IOException) {
throw new NFSException(xid, (uint)NfsReply.ERR_IO);
}
catch (System.Security.SecurityException) {
throw new NFSException(xid, (uint)NfsReply.ERR_PERM);
}
}
public NfsPacket Write(uint xid, NfsPacket packet)
{
string fileName = null;
try {
// read info out of packet
FileHandle fh = new FileHandle(packet);
uint beginoffset = packet.GetUInt();
uint offset = packet.GetUInt();
uint totalcount = packet.GetUInt();
// next comes the data which is a uint of size and the bytes.
uint datalen = packet.GetUInt();
uint packetOffset = (uint)packet.Position;
packet.Advance(datalen);
// carry out the write operation
fileName = HandleManager.Current.GetName(fh.Handle);
if (fileName == null) {
throw new NFSException(xid, (uint)NfsReply.ERR_STALE);
}
// XXX comment out print lines to improve performance
// System.out.print("Write(" + fileName + ", " + offset + ", " +
// datalen + ")\n");
using (StreamWriter sw = new StreamWriter(fileName)) {
sw.BaseStream.Seek(offset, SeekOrigin.Begin);
sw.BaseStream.Write(packet.Data, (int)packetOffset, (int)datalen);
}
// load in new file attributes
NfsFileAttributes fa = new NfsFileAttributes();
fa.Load(fileName);
// create the reply packet
NfsPacket result = new NfsPacket(128);
result.Reset();
result.AddReplyHeader(xid);
result.SetUInt((uint)NfsReply.OK);
fa.Emit(ref result);
return result;
}
catch (IOException) {
throw new NFSException(xid, (uint)NfsReply.ERR_IO);
}
catch (System.Security.SecurityException) {
throw new NFSException(xid, (uint)NfsReply.ERR_PERM);
}
}
internal virtual bool Read(NfsPacket packet)
{
root = packet.GetUInt(); // the first long in the packet is the handle of the root
handle = packet.GetUInt(); // the next long is the handle of the file
@readonly = packet.GetUInt(); // the next is a read only flag
// The rest is nothing. There are 32 bytes in a FileHandle and this has read in 3 words, or 12 bytes.
packet.Advance(32 - 3 * 4);
return true;
}
