forked from KNEMC/KLALB
71 lines
1.7 KiB
Java
71 lines
1.7 KiB
Java
package org.kne.cloud.network.klalb;
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import static org.kne.cloud.network.klalb.KLALBPacket.*;
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import java.io.DataInputStream;
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import java.io.EOFException;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.StreamCorruptedException;
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import java.net.Inet6Address;
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public class KLALBInputStream extends DataInputStream {
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public KLALBInputStream(InputStream in) throws IOException {
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super(in);
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byte[]b=new byte[5];
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readFully(b);
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String s=new String(b,"ascii");
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if(!s.equals("KLALB")) {
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throw new StreamCorruptedException("no KLALB format");
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}
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int bv=readInt();
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int sv=readInt();
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if(bv!=2)
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throw new StreamCorruptedException("remote version is V"+bv+"."+sv+",not V2.0");
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}
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public synchronized KLALBPacket readPacket() throws IOException {
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int type=read();
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if(type==-1) {
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throw new EOFException();
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}
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KLALBPacket klp;
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switch(type) {
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case PING:klp=new PINGPacket();
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klp.readFromStream(this);
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return klp;
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case PONG:
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klp=new PONGPacket();
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klp.readFromStream(this);
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return klp;
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case SYNT:
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klp=new SYNTPacket();
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klp.readFromStream(this);
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return klp;
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case SACKT:
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klp=new SACKTPacket();
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klp.readFromStream(this);
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return klp;
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case RST:
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klp=new RSTPacket();
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klp.readFromStream(this);
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return klp;
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case DATAT:
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klp=new DATATPacket();
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klp.readFromStream(this);
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return klp;
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case ACKT:
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klp=new ACKTPacket();
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klp.readFromStream(this);
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return klp;
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case VADDR:
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klp=new VADDRPacket();
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klp.readFromStream(this);
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return klp;
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case LINES:
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klp=new LINESPacket();
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klp.readFromStream(this);
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return klp;
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}
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throw new StreamCorruptedException("unknown package type:"+type);
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}
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}
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