1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package org.apache.commons.codec.binary; 19 20 import java.io.IOException; 21 import java.io.InputStream; 22 23 /** 24 * Emits three line-feeds '\n' in a row, one at a time, and then EOF. 25 * 26 * Recreates the bug described in CODEC-105. 27 * 28 * @since 1.5 29 */ 30 public class Codec105ErrorInputStream extends InputStream { 31 private static final int EOF = -1; 32 33 int countdown = 3; 34 35 @Override 36 public int read() throws IOException { 37 if (this.countdown-- > 0) { 38 return '\n'; 39 } 40 return EOF; 41 } 42 43 @Override 44 public int read(final byte b[], final int pos, final int len) throws IOException { 45 if (this.countdown-- > 0) { 46 b[pos] = '\n'; 47 return 1; 48 } 49 return EOF; 50 } 51 }