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| org.apache.commons.net.tftp.TFTPReadRequestPacket |
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| 1 | /* |
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| 2 | * Copyright 2001-2005 The Apache Software Foundation |
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| 3 | * |
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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| 5 | * you may not use this file except in compliance with the License. |
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| 6 | * You may obtain a copy of the License at |
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| 7 | * |
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 9 | * |
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| 10 | * Unless required by applicable law or agreed to in writing, software |
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 13 | * See the License for the specific language governing permissions and |
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| 14 | * limitations under the License. |
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| 15 | */ |
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| 16 | package org.apache.commons.net.tftp; |
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| 17 | ||
| 18 | import java.net.DatagramPacket; |
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| 19 | import java.net.InetAddress; |
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| 20 | ||
| 21 | /*** |
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| 22 | * A class derived from TFTPRequestPacket definiing a TFTP read request |
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| 23 | * packet type. |
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| 24 | * <p> |
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| 25 | * Details regarding the TFTP protocol and the format of TFTP packets can |
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| 26 | * be found in RFC 783. But the point of these classes is to keep you |
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| 27 | * from having to worry about the internals. Additionally, only very |
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| 28 | * few people should have to care about any of the TFTPPacket classes |
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| 29 | * or derived classes. Almost all users should only be concerned with the |
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| 30 | * {@link org.apache.commons.net.tftp.TFTPClient} class |
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| 31 | * {@link org.apache.commons.net.tftp.TFTPClient#receiveFile receiveFile()} |
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| 32 | * and |
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| 33 | * {@link org.apache.commons.net.tftp.TFTPClient#sendFile sendFile()} |
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| 34 | * methods. |
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| 35 | * <p> |
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| 36 | * <p> |
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| 37 | * @author Daniel F. Savarese |
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| 38 | * @see TFTPPacket |
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| 39 | * @see TFTPRequestPacket |
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| 40 | * @see TFTPPacketException |
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| 41 | * @see TFTP |
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| 42 | ***/ |
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| 43 | ||
| 44 | public final class TFTPReadRequestPacket extends TFTPRequestPacket |
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| 45 | { |
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| 46 | ||
| 47 | /*** |
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| 48 | * Creates a read request packet to be sent to a host at a |
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| 49 | * given port with a filename and transfer mode request. |
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| 50 | * <p> |
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| 51 | * @param destination The host to which the packet is going to be sent. |
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| 52 | * @param port The port to which the packet is going to be sent. |
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| 53 | * @param filename The requested filename. |
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| 54 | * @param mode The requested transfer mode. This should be on of the TFTP |
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| 55 | * class MODE constants (e.g., TFTP.NETASCII_MODE). |
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| 56 | ***/ |
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| 57 | public TFTPReadRequestPacket(InetAddress destination, int port, |
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| 58 | String filename, int mode) |
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| 59 | { |
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| 60 | 0 | super(destination, port, TFTPPacket.READ_REQUEST, filename, mode); |
| 61 | 0 | } |
| 62 | ||
| 63 | /*** |
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| 64 | * Creates a read request packet of based on a received |
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| 65 | * datagram and assumes the datagram has already been identified as a |
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| 66 | * read request. Assumes the datagram is at least length 4, else an |
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| 67 | * ArrayIndexOutOfBoundsException may be thrown. |
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| 68 | * <p> |
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| 69 | * @param datagram The datagram containing the received request. |
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| 70 | * @throws TFTPPacketException If the datagram isn't a valid TFTP |
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| 71 | * request packet. |
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| 72 | ***/ |
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| 73 | TFTPReadRequestPacket(DatagramPacket datagram) throws TFTPPacketException |
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| 74 | { |
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| 75 | 0 | super(TFTPPacket.READ_REQUEST, datagram); |
| 76 | 0 | } |
| 77 | ||
| 78 | } |
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