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1: /* 2: * SaslOutputStream.java 3: * Copyright (C) 2002 The Free Software Foundation 4: * 5: * This file is part of GNU inetlib, a library. 6: * 7: * GNU inetlib is free software; you can redistribute it and/or modify 8: * it under the terms of the GNU General Public License as published by 9: * the Free Software Foundation; either version 2 of the License, or 10: * (at your option) any later version. 11: * 12: * GNU inetlib is distributed in the hope that it will be useful, 13: * but WITHOUT ANY WARRANTY; without even the implied warranty of 14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15: * GNU General Public License for more details. 16: * 17: * You should have received a copy of the GNU General Public License 18: * along with this library; if not, write to the Free Software 19: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20: * 21: * Linking this library statically or dynamically with other modules is 22: * making a combined work based on this library. Thus, the terms and 23: * conditions of the GNU General Public License cover the whole 24: * combination. 25: * 26: * As a special exception, the copyright holders of this library give you 27: * permission to link this library with independent modules to produce an 28: * executable, regardless of the license terms of these independent 29: * modules, and to copy and distribute the resulting executable under 30: * terms of your choice, provided that you also meet, for each linked 31: * independent module, the terms and conditions of the license of that 32: * module. An independent module is a module which is not derived from 33: * or based on this library. If you modify this library, you may extend 34: * this exception to your version of the library, but you are not 35: * obliged to do so. If you do not wish to do so, delete this 36: * exception statement from your version. 37: */ 38: 39: package gnu.inet.util; 40: 41: import java.io.FilterOutputStream; 42: import java.io.IOException; 43: import java.io.OutputStream; 44: 45: import javax.security.sasl.SaslClient; 46: 47: /** 48: * A filter output stream that encodes data written to it using a SASL 49: * client. 50: * 51: * @author <a href="mailto:dog@gnu.org">Chris Burdess</a> 52: */ 53: public class SaslOutputStream 54: extends FilterOutputStream 55: { 56: 57: /* 58: * The SASL client used for encoding data. 59: */ 60: private final SaslClient sasl; 61: 62: /** 63: * Constructor. 64: * @param sasl the SASL client 65: * @param out the target output stream 66: */ 67: public SaslOutputStream(SaslClient sasl, OutputStream out) 68: { 69: super(out); 70: this.sasl = sasl; 71: } 72: 73: /** 74: * Character write. 75: */ 76: public void write(int c) 77: throws IOException 78: { 79: byte[] bytes = new byte[1]; 80: bytes[0] = (byte) c; 81: write(bytes, 0, 1); 82: } 83: 84: public void write(byte[] bytes) 85: throws IOException 86: { 87: write(bytes, 0, bytes.length); 88: } 89: 90: /** 91: * Block write. 92: */ 93: public void write(byte[] bytes, int off, int len) 94: throws IOException 95: { 96: byte[] wrapped = sasl.wrap(bytes, off, len); 97: super.write(wrapped, 0, wrapped.length); 98: } 99: 100: }