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/*
* Copyright (c) 1998, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 4008296 4008293 4190090 4193729 4358774
* @summary Check for correct handling of parameters to
* XXXXInputStream.read(b, off, len).
*
*/
import java.io.*;
import java.util.zip.ZipInputStream;
import java.util.zip.InflaterInputStream;
import java.util.zip.DeflaterOutputStream;
public class ReadParams {
/* check for correct handling of different values of off and len */
public static void doTest(InputStream in) throws Exception {
int off[] = {-1, -1, 0, 0, 33, 33, 0, 32, 32, 4, 1, 0, -1,
Integer.MAX_VALUE, 1, Integer.MIN_VALUE,
Integer.MIN_VALUE, 1};
int len[] = {-1, 0, -1, 33, 0, 4, 32, 0, 4, 16, 31, 0,
Integer.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE,
1, -1, Integer.MIN_VALUE};
boolean results[] = { false, false, false, false, false, false,
true, true, false, true, true, true, false,
false, false, false, false, false};
int numCases = off.length;
byte b[] = new byte[32];
int numBad = 0;
for(int i = 0; i < numCases; i++) {
try {
in.read(b , off[i] , len[i]);
} catch (IndexOutOfBoundsException aiobe) {
if (results[i]) {
System.err.println("Error:IndexOutOfBoundsException thrown"+
" for read(b, " + off[i] + " " + len[i] +
" ) on " + in + "\nb.length = 32");
numBad++;
} else {
/* System.err.println("PassE: " + off[i] + " " + len[i]); */
}
continue;
} catch (OutOfMemoryError ome) {
System.err.println("Error: OutOfMemoryError in read(b, " +
off[i] + " " + len[i] + " ) on " + in +
"\nb.length = 32");
numBad++;
continue;
}
if (!results[i]) {
System.err.println("Error:No IndexOutOfBoundsException thrown"+
" for read(b, " + off[i] + " " + len[i] +
" ) on " + in + "\nb.length = 32");
numBad++;
} else {
/* System.err.println("Pass: " + off[i] + " " + len[i]); */
}
}
if (numBad > 0) {
throw new RuntimeException(in + " Failed " + numBad + " cases");
} else {
System.err.println("Successfully completed bounds tests on " + in);
}
}
/* check for correct handling of null b */
public static void doTest1(InputStream in) throws Exception {
byte b[] = null;
try {
in.read(b, 0, 32);
} catch (NullPointerException npe) {
System.err.println("SuccessFully completed null b test on " + in);
return;
}
throw new RuntimeException(in + " Failed null b test");
}
public static void main(String args[]) throws Exception{
/* initialise stuff */
File fn = new File("x.ReadBounds");
FileOutputStream fout = new FileOutputStream(fn);
for (int i = 0; i < 32; i++) {
fout.write(i);
}
fout.close();
byte b[] = new byte[64];
for(int i = 0; i < 64; i++) {
b[i] = 1;
}
/* test all input streams */
FileInputStream fis = new FileInputStream(fn);
doTest(fis);
doTest1(fis);
fis.close();
BufferedInputStream bis =
new BufferedInputStream(new MyInputStream(1024));
doTest(bis);
doTest1(bis);
bis.close();
ByteArrayInputStream bais = new ByteArrayInputStream(b);
doTest(bais);
doTest1(bais);
bais.close();
FileOutputStream fos = new FileOutputStream(fn);
ObjectOutputStream oos = new ObjectOutputStream(fos);
oos.writeInt(12345);
oos.writeObject("Today");
oos.writeObject(new Integer(32));
oos.close();
ObjectInputStream ois = new ObjectInputStream(new FileInputStream(fn));
doTest(ois);
doTest1(ois);
ois.close();
DataInputStream dis = new DataInputStream(new MyInputStream(1024));
doTest(dis);
doTest1(dis);
dis.close();
LineNumberInputStream lis =
new LineNumberInputStream(new MyInputStream(1024));
doTest(lis);
doTest1(lis);
lis.close();
PipedOutputStream pos = new PipedOutputStream();
PipedInputStream pis = new PipedInputStream();
pos.connect(pis);
pos.write(b, 0, 64);
doTest(pis);
doTest1(pis);
pis.close();
PushbackInputStream pbis =
new PushbackInputStream(new MyInputStream(1024));
doTest(pbis);
doTest1(pbis);
pbis.close();
StringBufferInputStream sbis =
new StringBufferInputStream(new String(b));
doTest(sbis);
doTest1(sbis);
sbis.close();
SequenceInputStream sis =
new SequenceInputStream(new MyInputStream(1024),
new MyInputStream(1024));
doTest(sis);
doTest1(sis);
sis.close();
ZipInputStream zis = new ZipInputStream(new FileInputStream(fn));
doTest(zis);
doTest1(zis);
zis.close();
byte[] data = new byte[256];
ByteArrayOutputStream bos = new ByteArrayOutputStream();
DeflaterOutputStream dos = new DeflaterOutputStream(bos);
dos.write(data, 0, data.length);
dos.close();
InflaterInputStream ifs = new InflaterInputStream
(new ByteArrayInputStream(bos.toByteArray()));
doTest(ifs);
doTest1(ifs);
ifs.close();
InputStream nis = InputStream.nullInputStream();
doTest(nis);
doTest1(nis);
nis.close();
/* cleanup */
fn.delete();
}
}
/* An InputStream class used in the above tests */
class MyInputStream extends InputStream {
private int readctr = 0;
private long endoffile;
public MyInputStream(long endoffile) {
this.endoffile = endoffile;
}
public int read() {
if (readctr == endoffile) {
return -1;
}
else {
readctr++;
return 0;
}
}
public int available() { return 0; }
}
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