public NfsPacket Read(NfsPacket packet)
{
try {
FileHandle fh = new FileHandle(packet);
uint offset = packet.GetUInt();
uint count = packet.GetUInt();
uint totalCount = packet.GetUInt(); // not used
uint xId = packet.XID;
int numberRead;
byte[] readbuf;
String filePath = HandleManager.Current.GetName(fh.Handle);
if (filePath == null)
{
throw new NFSException(xId, (uint)NfsReply.ERR_STALE);
}
if (count <= 0)
{
Console.Error.WriteLine("\tNfsIO.Read: invalid value for count " + count);
throw new NFSException(xId, (uint)NfsReply.ERR_IO);
}
using (StreamReader sr = new StreamReader(filePath)) {
sr.BaseStream.Seek(offset, SeekOrigin.Begin);
readbuf = new byte[(int)count];
numberRead = sr.BaseStream.Read(readbuf, 0, (int)count);
}
if (numberRead < 0)
{
Console.Error.WriteLine("\tNfsIO.Read: number read is " + numberRead);
numberRead = 0;
}
NfsFileAttributes attributes = new NfsFileAttributes(filePath);
NfsPacket reply = new NfsPacket(128 + numberRead);
reply.AddReplyHeader(xId);
reply.SetUInt((uint)NfsReply.OK);
attributes.Emit(ref reply);
reply.SetData(numberRead, readbuf);
return(reply);
}
catch (FileNotFoundException) {
throw new NFSException(packet.XID, (uint)NfsReply.ERR_NOENT);
}
catch (IOException) {
throw new NFSException(packet.XID, (uint)NfsReply.ERR_IO);
}
}
public NfsPacket Read(NfsPacket packet)
{
try {
FileHandle fh = new FileHandle(packet);
uint offset = packet.GetUInt();
uint count = packet.GetUInt();
uint totalCount = packet.GetUInt(); // not used
uint xId = packet.XID;
int numberRead;
byte[] readbuf;
String filePath = HandleManager.Current.GetName(fh.Handle);
if (filePath == null) {
throw new NFSException(xId, (uint)NfsReply.ERR_STALE);
}
if (count <= 0) {
Console.Error.WriteLine("\tNfsIO.Read: invalid value for count " + count);
throw new NFSException(xId, (uint)NfsReply.ERR_IO);
}
using (StreamReader sr = new StreamReader(filePath)) {
sr.BaseStream.Seek(offset, SeekOrigin.Begin);
readbuf = new byte[(int)count];
numberRead = sr.BaseStream.Read(readbuf, 0, (int)count);
}
if (numberRead < 0) {
Console.Error.WriteLine("\tNfsIO.Read: number read is " + numberRead);
numberRead = 0;
}
NfsFileAttributes attributes = new NfsFileAttributes(filePath);
NfsPacket reply = new NfsPacket(128 + numberRead);
reply.AddReplyHeader(xId);
reply.SetUInt((uint)NfsReply.OK);
attributes.Emit(ref reply);
reply.SetData(numberRead, readbuf);
return reply;
}
catch (FileNotFoundException) {
throw new NFSException(packet.XID, (uint)NfsReply.ERR_NOENT);
}
catch (IOException) {
throw new NFSException(packet.XID, (uint)NfsReply.ERR_IO);
}
}
