/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is free software; you can redistribute it and/or modify it
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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/*
 *
 *  (C) Copyright IBM Corp. 1999 All Rights Reserved.
 *  Copyright 1997 The Open Group Research Institute.  All rights reserved.
 */

package sun.security.krb5.internal.ktab;

import sun.security.krb5.internal.*;
import sun.security.krb5.internal.util.KrbDataOutputStream;
import java.io.IOException;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;

This class implements a buffered input stream. It is used for parsing key table data to memory.
Author:Yanni Zhang
/** * This class implements a buffered input stream. It is used for parsing key table * data to memory. * * @author Yanni Zhang * */
public class KeyTabOutputStream extends KrbDataOutputStream implements KeyTabConstants { private KeyTabEntry entry; private int keyType; private byte[] keyValue; public int version; public KeyTabOutputStream(OutputStream os) { super(os); } public void writeVersion(int num) throws IOException { version = num; write16(num); //we use the standard version. } public void writeEntry(KeyTabEntry entry) throws IOException { write32(entry.entryLength()); String[] serviceNames = entry.service.getNameStrings(); int comp_num = serviceNames.length; if (version == KRB5_KT_VNO_1) { write16(comp_num + 1); } else write16(comp_num); byte[] realm = null; try { realm = entry.service.getRealmString().getBytes("8859_1"); } catch (UnsupportedEncodingException exc) { } write16(realm.length); write(realm); for (int i = 0; i < comp_num; i++) { try { write16(serviceNames[i].getBytes("8859_1").length); write(serviceNames[i].getBytes("8859_1")); } catch (UnsupportedEncodingException exc) { } } write32(entry.service.getNameType()); //time is long, but we only use 4 bytes to store the data. write32((int)(entry.timestamp.getTime()/1000)); // the key version might be a 32 bit extended number. write8(entry.keyVersion % 256 ); write16(entry.keyType); write16(entry.keyblock.length); write(entry.keyblock); // if the key version isn't smaller than 256, it could be saved as // extension key version number in 4 bytes. The nonzero extension // key version number will be trusted. However, it isn't standardized // yet, we won't support it. // if (entry.keyVersion >= 256) { // write32(entry.keyVersion); //} } }