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1 package com.trilead.ssh2.packets;
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2
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3 import java.io.IOException;
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4
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5 /**
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6 * PacketChannelWindowAdjust.
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7 *
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8 * @author Christian Plattner, plattner@trilead.com
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9 * @version $Id: PacketChannelWindowAdjust.java,v 1.1 2007/10/15 12:49:55 cplattne Exp $
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10 */
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11 public class PacketChannelWindowAdjust {
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12 byte[] payload;
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13
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14 public int recipientChannelID;
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15 public int windowChange;
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16
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17 public PacketChannelWindowAdjust(int recipientChannelID, int windowChange) {
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18 this.recipientChannelID = recipientChannelID;
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19 this.windowChange = windowChange;
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20 }
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21
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22 public PacketChannelWindowAdjust(byte payload[], int off, int len) throws IOException {
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23 this.payload = new byte[len];
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24 System.arraycopy(payload, off, this.payload, 0, len);
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25 TypesReader tr = new TypesReader(payload, off, len);
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26 int packet_type = tr.readByte();
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27
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28 if (packet_type != Packets.SSH_MSG_CHANNEL_WINDOW_ADJUST)
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29 throw new IOException(
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30 "This is not a SSH_MSG_CHANNEL_WINDOW_ADJUST! ("
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31 + packet_type + ")");
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32
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33 recipientChannelID = tr.readUINT32();
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34 windowChange = tr.readUINT32();
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35
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36 if (tr.remain() != 0)
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37 throw new IOException("Padding in SSH_MSG_CHANNEL_WINDOW_ADJUST packet!");
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38 }
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39
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40 public byte[] getPayload() {
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41 if (payload == null) {
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42 TypesWriter tw = new TypesWriter();
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43 tw.writeByte(Packets.SSH_MSG_CHANNEL_WINDOW_ADJUST);
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44 tw.writeUINT32(recipientChannelID);
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45 tw.writeUINT32(windowChange);
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46 payload = tw.getBytes();
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47 }
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48
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49 return payload;
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50 }
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51 }
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