1 /*
   2  * Copyright (c) 1998, 1999, 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 }