public final class TFTPErrorPacket extends TFTPPacket
Details regarding the TFTP protocol and the format of TFTP packets can
be found in RFC 783. But the point of these classes is to keep you
from having to worry about the internals. Additionally, only very
few people should have to care about any of the TFTPPacket classes
or derived classes. Almost all users should only be concerned with the
TFTPClient
class
receiveFile()
and
sendFile()
methods.
TFTPPacket
,
TFTPPacketException
,
TFTP
Modifier and Type | Field and Description |
---|---|
(package private) int |
_error
The error code of this packet.
|
(package private) java.lang.String |
_message
The error message of this packet.
|
static int |
ACCESS_VIOLATION
The access violation error code according to RFC 783, value 2.
|
static int |
FILE_EXISTS
The file already exists error code according to RFC 783, value 6.
|
static int |
FILE_NOT_FOUND
The file not found error code according to RFC 783, value 1.
|
static int |
ILLEGAL_OPERATION
The illegal TFTP operation error code according to RFC 783, value 4.
|
static int |
NO_SUCH_USER
The no such user error code according to RFC 783, value 7.
|
static int |
OUT_OF_SPACE
The disk full error code according to RFC 783, value 3.
|
static int |
UNDEFINED
The undefined error code according to RFC 783, value 0.
|
static int |
UNKNOWN_TID
The unknown transfer id error code according to RFC 783, value 5.
|
_address, _port, _type, ACKNOWLEDGEMENT, DATA, ERROR, MIN_PACKET_SIZE, READ_REQUEST, SEGMENT_SIZE, WRITE_REQUEST
Constructor and Description |
---|
TFTPErrorPacket(java.net.DatagramPacket datagram)
Creates an error packet based from a received
datagram.
|
TFTPErrorPacket(java.net.InetAddress destination,
int port,
int error,
java.lang.String message)
Creates an error packet to be sent to a host at a given port
with an error code and error message.
|
Modifier and Type | Method and Description |
---|---|
(package private) java.net.DatagramPacket |
_newDatagram(java.net.DatagramPacket datagram,
byte[] data)
This is a method only available within the package for
implementing efficient datagram transport by elminating buffering.
|
int |
getError()
Returns the error code of the packet.
|
java.lang.String |
getMessage()
Returns the error message of the packet.
|
java.net.DatagramPacket |
newDatagram()
Creates a UDP datagram containing all the TFTP
error packet data in the proper format.
|
java.lang.String |
toString()
For debugging
|
getAddress, getPort, getType, newTFTPPacket, setAddress, setPort
public static final int UNDEFINED
public static final int FILE_NOT_FOUND
public static final int ACCESS_VIOLATION
public static final int OUT_OF_SPACE
public static final int ILLEGAL_OPERATION
public static final int UNKNOWN_TID
public static final int FILE_EXISTS
public static final int NO_SUCH_USER
int _error
java.lang.String _message
public TFTPErrorPacket(java.net.InetAddress destination, int port, int error, java.lang.String message)
destination
- The host to which the packet is going to be sent.port
- The port to which the packet is going to be sent.error
- The error code of the packet.message
- The error message of the packet.TFTPErrorPacket(java.net.DatagramPacket datagram) throws TFTPPacketException
datagram
- The datagram containing the received error.TFTPPacketException
- If the datagram isn't a valid TFTP
error packet.java.net.DatagramPacket _newDatagram(java.net.DatagramPacket datagram, byte[] data)
_newDatagram
in class TFTPPacket
datagram
- The datagram to create.data
- The buffer to store the packet and to use in the datagram.public java.net.DatagramPacket newDatagram()
TFTPClient
class.
Under normal circumstances, you should not have a need to call this
method.newDatagram
in class TFTPPacket
public int getError()
public java.lang.String getMessage()
public java.lang.String toString()
toString
in class TFTPPacket