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 }