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1
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2 package com.trilead.ssh2.packets;
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3
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4 import java.io.IOException;
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5
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6 /**
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7 * PacketServiceAccept.
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8 *
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9 * @author Christian Plattner, plattner@trilead.com
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10 * @version $Id: PacketServiceAccept.java,v 1.2 2008/04/01 12:38:09 cplattne Exp $
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11 */
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12 public class PacketServiceAccept {
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13 byte[] payload;
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14
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15 String serviceName;
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16
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17 public PacketServiceAccept(String serviceName) {
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18 this.serviceName = serviceName;
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19 }
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20
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21 public PacketServiceAccept(byte payload[], int off, int len) throws IOException {
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22 this.payload = new byte[len];
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23 System.arraycopy(payload, off, this.payload, 0, len);
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24 TypesReader tr = new TypesReader(payload, off, len);
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25 int packet_type = tr.readByte();
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26
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27 if (packet_type != Packets.SSH_MSG_SERVICE_ACCEPT)
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28 throw new IOException("This is not a SSH_MSG_SERVICE_ACCEPT! (" + packet_type + ")");
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29
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30 /* Be clever in case the server is not. Some servers seem to violate RFC4253 */
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31
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32 if (tr.remain() > 0) {
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33 serviceName = tr.readString();
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34 }
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35 else {
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36 serviceName = "";
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37 }
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38
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39 if (tr.remain() != 0)
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40 throw new IOException("Padding in SSH_MSG_SERVICE_ACCEPT packet!");
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41 }
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42
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43 public byte[] getPayload() {
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44 if (payload == null) {
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45 TypesWriter tw = new TypesWriter();
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46 tw.writeByte(Packets.SSH_MSG_SERVICE_ACCEPT);
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47 tw.writeString(serviceName);
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48 payload = tw.getBytes();
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49 }
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50
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51 return payload;
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52 }
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53 }
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