1 /*
2 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @bug 4008296 4008293 4190090 4193729
27 * @summary Check for correct handling of parameters to
28 * XXXXInputStream.read(b, off, len).
29 *
30 */
31
32 import java.io.*;
33 import java.util.zip.ZipInputStream;
34 import java.util.zip.InflaterInputStream;
35 import java.util.zip.DeflaterOutputStream;
36
37 public class ReadParams {
38
39 /* check for correct handling of different values of off and len */
40 public static void doTest(InputStream in) throws Exception {
41
42 int off[] = {-1, -1, 0, 0, 33, 33, 0, 32, 32, 4, 1, 0, -1,
43 Integer.MAX_VALUE, 1, Integer.MIN_VALUE,
44 Integer.MIN_VALUE, 1};
45 int len[] = {-1, 0, -1, 33, 0, 4, 32, 0, 4, 16, 31, 0,
46 Integer.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE,
47 1, -1, Integer.MIN_VALUE};
48 boolean results[] = { false, false, false, false, false, false,
49 true, true, false, true, true, true, false,
50 false, false, false, false, false};
51 int numCases = off.length;
52 byte b[] = new byte[32];
53 int numBad = 0;
54
55 for(int i = 0; i < numCases; i++) {
56 try {
57 in.read(b , off[i] , len[i]);
58 } catch (IndexOutOfBoundsException aiobe) {
59 if (results[i]) {
60 System.err.println("Error:IndexOutOfBoundsException thrown"+
61 " for read(b, " + off[i] + " " + len[i] +
62 " ) on " + in + "\nb.length = 32");
63 numBad++;
64 } else {
65 /* System.err.println("PassE: " + off[i] + " " + len[i]); */
66 }
67 continue;
68 } catch (OutOfMemoryError ome) {
69 System.err.println("Error: OutOfMemoryError in read(b, " +
70 off[i] + " " + len[i] + " ) on " + in +
71 "\nb.length = 32");
72 numBad++;
73 continue;
74 }
75 if (!results[i]) {
76 System.err.println("Error:No IndexOutOfBoundsException thrown"+
77 " for read(b, " + off[i] + " " + len[i] +
78 " ) on " + in + "\nb.length = 32");
79 numBad++;
80 } else {
81 /* System.err.println("Pass: " + off[i] + " " + len[i]); */
82 }
83 }
84
85 if (numBad > 0) {
86 throw new RuntimeException(in + " Failed " + numBad + " cases");
87 } else {
88 System.err.println("Successfully completed bounds tests on " + in);
89 }
90 }
91
92 /* check for correct handling of null b */
93 public static void doTest1(InputStream in) throws Exception {
94 byte b[] = null;
95 try {
96 in.read(b, 0, 32);
97 } catch (NullPointerException npe) {
98 System.err.println("SuccessFully completed null b test on " + in);
99 return;
100 }
101 throw new RuntimeException(in + " Failed null b test");
102 }
103
104 public static void main(String args[]) throws Exception{
105 /* initialise stuff */
106 File fn = new File("x.ReadBounds");
107 FileOutputStream fout = new FileOutputStream(fn);
108 for (int i = 0; i < 32; i++) {
109 fout.write(i);
110 }
111 fout.close();
112
113 byte b[] = new byte[64];
114 for(int i = 0; i < 64; i++) {
115 b[i] = 1;
116 }
117
118 /* test all input streams */
119 FileInputStream fis = new FileInputStream(fn);
120 doTest(fis);
121 doTest1(fis);
122 fis.close();
123
124 BufferedInputStream bis =
125 new BufferedInputStream(new MyInputStream(1024));
126 doTest(bis);
127 doTest1(bis);
128 bis.close();
129
130 ByteArrayInputStream bais = new ByteArrayInputStream(b);
131 doTest(bais);
132 doTest1(bais);
133 bais.close();
134
135 FileOutputStream fos = new FileOutputStream(fn);
136 ObjectOutputStream oos = new ObjectOutputStream(fos);
137 oos.writeInt(12345);
138 oos.writeObject("Today");
139 oos.writeObject(new Integer(32));
140 oos.close();
141 ObjectInputStream ois = new ObjectInputStream(new FileInputStream(fn));
142 doTest(ois);
143 doTest1(ois);
144 ois.close();
145
146 DataInputStream dis = new DataInputStream(new MyInputStream(1024));
147 doTest(dis);
148 doTest1(dis);
149 dis.close();
150
151 LineNumberInputStream lis =
152 new LineNumberInputStream(new MyInputStream(1024));
153 doTest(lis);
154 doTest1(lis);
155 lis.close();
156
157 PipedOutputStream pos = new PipedOutputStream();
158 PipedInputStream pis = new PipedInputStream();
159 pos.connect(pis);
160 pos.write(b, 0, 64);
161 doTest(pis);
162 doTest1(pis);
163 pis.close();
164
165 PushbackInputStream pbis =
166 new PushbackInputStream(new MyInputStream(1024));
167 doTest(pbis);
168 doTest1(pbis);
169 pbis.close();
170
171 StringBufferInputStream sbis =
172 new StringBufferInputStream(new String(b));
173 doTest(sbis);
174 doTest1(sbis);
175 sbis.close();
176
177 SequenceInputStream sis =
178 new SequenceInputStream(new MyInputStream(1024),
179 new MyInputStream(1024));
180 doTest(sis);
181 doTest1(sis);
182 sis.close();
183
184 ZipInputStream zis = new ZipInputStream(new FileInputStream(fn));
185 doTest(zis);
186 doTest1(zis);
187 zis.close();
188
189 byte[] data = new byte[256];
190 ByteArrayOutputStream bos = new ByteArrayOutputStream();
191 DeflaterOutputStream dos = new DeflaterOutputStream(bos);
192 dos.write(data, 0, data.length);
193 dos.close();
194 InflaterInputStream ifs = new InflaterInputStream
195 (new ByteArrayInputStream(bos.toByteArray()));
196 doTest(ifs);
197 doTest1(ifs);
198 ifs.close();
199
200 /* cleanup */
201 fn.delete();
202 }
203 }
204
205 /* An InputStream class used in the above tests */
206 class MyInputStream extends InputStream {
207
208 private int readctr = 0;
209 private long endoffile;
210
211 public MyInputStream(long endoffile) {
212 this.endoffile = endoffile;
213 }
214
215 public int read() {
216 if (readctr == endoffile) {
217 return -1;
218 }
219 else {
220 readctr++;
221 return 0;
222 }
223 }
224
225 public int available() { return 0; }
226 }