/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.commons.compress.archivers.zip;
import static org.apache.commons.compress.AbstractTestCase.getFile;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import static org.junit.Assume.assumeTrue;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.RandomAccessFile;
import java.util.Enumeration;
import java.util.Random;
import java.util.zip.ZipEntry;
import org.apache.commons.compress.AbstractTestCase;
import org.junit.Test;
public class Zip64SupportIT {
private static final long FIVE_BILLION = 5000000000l;
private static final int ONE_MILLION = 1000000;
private static final int ONE_HUNDRED_THOUSAND = 100000;
@Test public void read5GBOfZerosUsingInputStream() throws Throwable {
read5GBOfZerosImpl(get5GBZerosFile(), "5GB_of_Zeros");
}
@Test public void read5GBOfZerosGeneratedBy7ZIPUsingInputStream()
throws Throwable {
read5GBOfZerosImpl(get5GBZerosFileGeneratedBy7ZIP(), "5GB_of_Zeros");
}
@Test public void read5GBOfZerosGeneratedByJava7JarUsingInputStream()
throws Throwable {
read5GBOfZerosImpl(get5GBZerosFileGeneratedByJava7Jar(), "5GB_of_Zeros");
}
@Test public void read5GBOfZerosGeneratedByWinZIPUsingInputStream()
throws Throwable {
read5GBOfZerosImpl(get5GBZerosFileGeneratedByWinZIP(), "5GB_of_Zeros");
}
@Test public void read5GBOfZerosGeneratedByPKZipUsingInputStream()
throws Throwable {
read5GBOfZerosImpl(get5GBZerosFileGeneratedByPKZip(),
"zip6/5GB_of_Zeros");
}
@Test public void read100KFilesUsingInputStream() throws Throwable {
read100KFilesImpl(get100KFileFile());
}
@Test public void read100KFilesGeneratedBy7ZIPUsingInputStream()
throws Throwable {
read100KFilesImpl(get100KFileFileGeneratedBy7ZIP());
}
@Test public void read100KFilesGeneratedByWinCFUsingInputStream()
throws Throwable {
read100KFilesImpl(get100KFileFileGeneratedByWinCF());
}
@Test public void read100KFilesGeneratedByJava7JarUsingInputStream()
throws Throwable {
read100KFilesImpl(get100KFileFileGeneratedByJava7Jar());
}
@Test public void read100KFilesGeneratedByWinZIPUsingInputStream()
throws Throwable {
read100KFilesImpl(get100KFileFileGeneratedByWinZIP());
}
@Test public void read100KFilesGeneratedByPKZipUsingInputStream()
throws Throwable {
read100KFilesImpl(get100KFileFileGeneratedByPKZip());
}
@Test public void read5GBOfZerosUsingZipFile() throws Throwable {
read5GBOfZerosUsingZipFileImpl(get5GBZerosFile(), "5GB_of_Zeros");
}
@Test public void read5GBOfZerosGeneratedBy7ZIPUsingZipFile()
throws Throwable {
read5GBOfZerosUsingZipFileImpl(get5GBZerosFileGeneratedBy7ZIP(),
"5GB_of_Zeros");
}
@Test public void read5GBOfZerosGeneratedByJava7JarUsingZipFile()
throws Throwable {
read5GBOfZerosUsingZipFileImpl(get5GBZerosFileGeneratedByJava7Jar(),
"5GB_of_Zeros");
}
@Test public void read5GBOfZerosGeneratedByWinZIPUsingZipFile()
throws Throwable {
read5GBOfZerosUsingZipFileImpl(get5GBZerosFileGeneratedByWinZIP(),
"5GB_of_Zeros");
}
@Test public void read5GBOfZerosGeneratedByPKZipUsingZipFile()
throws Throwable {
read5GBOfZerosUsingZipFileImpl(get5GBZerosFileGeneratedByPKZip(),
"zip6/5GB_of_Zeros");
}
@Test public void read100KFilesUsingZipFile() throws Throwable {
read100KFilesUsingZipFileImpl(get100KFileFile());
}
@Test public void read100KFilesGeneratedBy7ZIPUsingZipFile()
throws Throwable {
read100KFilesUsingZipFileImpl(get100KFileFileGeneratedBy7ZIP());
}
@Test public void read100KFilesGeneratedByWinCFUsingZipFile()
throws Throwable {
read100KFilesUsingZipFileImpl(get100KFileFileGeneratedByWinCF());
}
@Test public void read100KFilesGeneratedByJava7JarUsingZipFile()
throws Throwable {
read100KFilesUsingZipFileImpl(get100KFileFileGeneratedByJava7Jar());
}
@Test public void read100KFilesGeneratedByWinZIPUsingZipFile()
throws Throwable {
read100KFilesUsingZipFileImpl(get100KFileFileGeneratedByWinZIP());
}
@Test public void read100KFilesGeneratedByPKZipUsingZipFile()
throws Throwable {
read100KFilesUsingZipFileImpl(get100KFileFileGeneratedByPKZip());
}
private static ZipOutputTest write100KFiles() {
return write100KFiles(Zip64Mode.AsNeeded);
}
private static ZipOutputTest write100KFiles(final Zip64Mode mode) {
return new ZipOutputTest() {
public void test(File f, ZipArchiveOutputStream zos)
throws IOException {
if (mode != Zip64Mode.AsNeeded) {
zos.setUseZip64(mode);
}
write100KFilesToStream(zos);
RandomAccessFile a = new RandomAccessFile(f, "r");
try {
final long end = a.length();
// validate "end of central directory" is at
// the end of the file and contains the magic
// value 0xFFFF as "number of entries".
a.seek(end
- 22 /* length of EOCD without file comment */);
byte[] eocd = new byte[12];
a.readFully(eocd);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 5, 6,
// disk numbers
0, 0, 0, 0,
// entries
(byte) 0xff, (byte) 0xff,
(byte) 0xff, (byte) 0xff,
}, eocd);
// validate "Zip64 end of central directory
// locator" is right in front of the EOCD and
// the location of the "Zip64 end of central
// directory record" seems correct
long expectedZ64EocdOffset = end - 22 /* eocd.length */
- 20 /* z64 eocd locator.length */
- 56 /* z64 eocd without extensible data sector */;
byte[] loc =
ZipEightByteInteger.getBytes(expectedZ64EocdOffset);
a.seek(end - 22 - 20);
byte[] z64EocdLoc = new byte[20];
a.readFully(z64EocdLoc);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 6, 7,
// disk numbers
0, 0, 0, 0,
// location of Zip64 EOCD,
loc[0], loc[1], loc[2], loc[3],
loc[4], loc[5], loc[6], loc[7],
// total number of disks
1, 0, 0, 0,
}, z64EocdLoc);
// validate "Zip64 end of central directory
// record" is where it is supposed to be, the
// known values are fine and read the location
// of the central directory from it
a.seek(expectedZ64EocdOffset);
byte[] z64EocdStart = new byte[40];
a.readFully(z64EocdStart);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 6, 6,
// size of z64 EOCD
44, 0, 0, 0,
0, 0, 0, 0,
// version made by
45, 0,
// version needed to extract
45, 0,
// disk numbers
0, 0, 0, 0,
0, 0, 0, 0,
// number of entries 100k = 0x186A0
(byte) 0xA0, (byte) 0x86, 1, 0,
0, 0, 0, 0,
(byte) 0xA0, (byte) 0x86, 1, 0,
0, 0, 0, 0,
}, z64EocdStart);
a.seek(expectedZ64EocdOffset + 48 /* skip size */);
byte[] cdOffset = new byte[8];
a.readFully(cdOffset);
long cdLoc = ZipEightByteInteger.getLongValue(cdOffset);
// finally verify there really is a central
// directory entry where the Zip64 EOCD claims
a.seek(cdLoc);
byte[] sig = new byte[4];
a.readFully(sig);
assertArrayEquals(new byte[] {
(byte) 0x50, (byte) 0x4b, 1, 2,
}, sig);
} finally {
a.close();
}
}
};
}
@Test public void write100KFilesFile() throws Throwable {
withTemporaryArchive("write100KFilesFile", write100KFiles(), true);
}
@Test public void write100KFilesStream() throws Throwable {
withTemporaryArchive("write100KFilesStream", write100KFiles(), false);
}
@Test public void write100KFilesFileModeAlways() throws Throwable {
withTemporaryArchive("write100KFilesFileModeAlways",
write100KFiles(Zip64Mode.Always), true);
}
@Test public void write100KFilesStreamModeAlways() throws Throwable {
withTemporaryArchive("write100KFilesStreamModeAlways",
write100KFiles(Zip64Mode.Always), false);
}
private static final ZipOutputTest write100KFilesModeNever =
new ZipOutputTest() {
public void test(File f, ZipArchiveOutputStream zos)
throws IOException {
zos.setUseZip64(Zip64Mode.Never);
try {
write100KFilesToStream(zos);
fail("expected a Zip64RequiredException");
} catch (Zip64RequiredException ex) {
assertEquals(Zip64RequiredException.TOO_MANY_ENTRIES_MESSAGE,
ex.getMessage());
}
}
};
@Test public void write100KFilesFileModeNever() throws Throwable {
withTemporaryArchive("write100KFilesFileModeNever",
write100KFilesModeNever, true);
}
@Test public void write100KFilesStreamModeNever() throws Throwable {
withTemporaryArchive("write100KFilesStreamModeNever",
write100KFilesModeNever, false);
}
@Test public void readSelfGenerated100KFilesUsingZipFile()
throws Throwable {
withTemporaryArchive("readSelfGenerated100KFilesUsingZipFile()",
new ZipOutputTest() {
public void test(File f,
ZipArchiveOutputStream zos)
throws IOException {
write100KFilesToStream(zos);
read100KFilesUsingZipFileImpl(f);
}
},
true);
}
private static ZipOutputTest write3EntriesCreatingBigArchive() {
return write3EntriesCreatingBigArchive(Zip64Mode.AsNeeded);
}
/*
* Individual sizes don't require ZIP64 but the offset of the
* third entry is bigger than 0xFFFFFFFF so a ZIP64 extended
* information is needed inside the central directory.
*
* Creates a temporary archive of approx 5GB in size
*/
private static ZipOutputTest
write3EntriesCreatingBigArchive(final Zip64Mode mode) {
return new ZipOutputTest() {
public void test(File f, ZipArchiveOutputStream zos)
throws IOException {
if (mode != Zip64Mode.AsNeeded) {
zos.setUseZip64(mode);
}
write3EntriesCreatingBigArchiveToStream(zos);
RandomAccessFile a = new RandomAccessFile(f, "r");
try {
getLengthAndPositionAtCentralDirectory(a);
// skip first two entries
a.skipBytes(2 * 47 /* CD entry of file with
file name length 1 and no
extra data */
+ 2 * (mode == Zip64Mode.Always ? 4 : 0)
/* empty ZIP64 extra fields if mode is Always */
);
// grab third entry, verify offset is
// 0xFFFFFFFF and it has a ZIP64 extended
// information extra field
byte[] header = new byte[12];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 1, 2,
// version made by
45, 0,
// version needed to extract
45, 0,
// GPB (EFS bit)
0, 8,
// method
0, 0
}, header);
// ignore timestamp, CRC, compressed size
a.skipBytes(12);
byte[] rest = new byte[23];
a.readFully(rest);
assertArrayEquals(new byte[] {
// Original Size
1, 0, 0, 0,
// file name length
1, 0,
// extra field length
12, 0,
// comment length
0, 0,
// disk number
0, 0,
// attributes
0, 0,
0, 0, 0, 0,
// offset
(byte) 0xFF, (byte) 0xFF,
(byte) 0xFF, (byte) 0xFF,
// file name
(byte) '2'
}, rest);
byte[] extra = new byte[4];
a.readFully(extra);
assertArrayEquals(new byte[] {
// Header-ID
1, 0,
// size
8, 0
}, extra);
// read offset of LFH
byte[] offset = new byte[8];
a.readFully(offset);
// verify there is a LFH where the CD claims it
a.seek(ZipEightByteInteger.getLongValue(offset));
byte[] sig = new byte[4];
a.readFully(sig);
assertArrayEquals(new byte[] {
(byte) 0x50, (byte) 0x4b, 3, 4,
}, sig);
} finally {
a.close();
}
}
};
}
@Test public void write3EntriesCreatingBigArchiveFile() throws Throwable {
withTemporaryArchive("write3EntriesCreatingBigArchiveFile",
write3EntriesCreatingBigArchive(),
true);
}
@Test public void write3EntriesCreatingBigArchiveStream() throws Throwable {
withTemporaryArchive("write3EntriesCreatingBigArchiveStream",
write3EntriesCreatingBigArchive(),
false);
}
@Test public void write3EntriesCreatingBigArchiveFileModeAlways()
throws Throwable {
withTemporaryArchive("write3EntriesCreatingBigArchiveFileModeAlways",
write3EntriesCreatingBigArchive(Zip64Mode.Always),
true);
}
@Test public void write3EntriesCreatingBigArchiveStreamModeAlways()
throws Throwable {
withTemporaryArchive("write3EntriesCreatingBigArchiveStreamModeAlways",
write3EntriesCreatingBigArchive(Zip64Mode.Always),
false);
}
private static final ZipOutputTest write3EntriesCreatingBigArchiveModeNever =
new ZipOutputTest() {
public void test(File f, ZipArchiveOutputStream zos)
throws IOException {
zos.setUseZip64(Zip64Mode.Never);
try {
write3EntriesCreatingBigArchiveToStream(zos);
fail("expected a Zip64RequiredException");
} catch (Zip64RequiredException ex) {
assertEquals(Zip64RequiredException.ARCHIVE_TOO_BIG_MESSAGE,
ex.getMessage());
}
}
};
@Test public void write3EntriesCreatingBigArchiveFileModeNever()
throws Throwable {
withTemporaryArchive("write3EntriesCreatingBigArchiveFileModeNever",
write3EntriesCreatingBigArchiveModeNever,
true);
}
@Test public void write3EntriesCreatingBigArchiveStreamModeNever()
throws Throwable {
withTemporaryArchive("write3EntriesCreatingBigArchiveStreamModeNever",
write3EntriesCreatingBigArchiveModeNever,
false);
}
@Test public void read3EntriesCreatingBigArchiveFileUsingZipFile()
throws Throwable {
withTemporaryArchive("read3EntriesCreatingBigArchiveFileUsingZipFile",
new ZipOutputTest() {
public void test(File f,
ZipArchiveOutputStream zos)
throws IOException {
write3EntriesCreatingBigArchiveToStream(zos);
ZipFile zf = null;
try {
zf = new ZipFile(f);
int idx = 0;
for (Enumeration<ZipArchiveEntry> e =
zf.getEntriesInPhysicalOrder();
e.hasMoreElements(); ) {
ZipArchiveEntry zae = e.nextElement();
assertEquals(String.valueOf(idx),
zae.getName());
if (idx++ < 2) {
assertEquals(FIVE_BILLION / 2,
zae.getSize());
} else {
assertEquals(1,
zae.getSize());
InputStream i =
zf.getInputStream(zae);
try {
assertNotNull(i);
assertEquals(42, i.read());
} finally {
i.close();
}
}
}
} finally {
ZipFile.closeQuietly(zf);
}
}
},
true);
}
private static ZipOutputTest writeBigStoredEntry(final boolean knownSize) {
return writeBigStoredEntry(knownSize, Zip64Mode.AsNeeded);
}
/*
* One entry of length 5 billion bytes, written without
* compression.
*
* No Compression => sizes are stored directly inside the LFH. No
* Data Descriptor at all.
*
* Creates a temporary archive of approx 5GB in size
*/
private static ZipOutputTest writeBigStoredEntry(final boolean knownSize,
final Zip64Mode mode) {
return new ZipOutputTest() {
public void test(File f, ZipArchiveOutputStream zos)
throws IOException {
if (mode != Zip64Mode.AsNeeded) {
zos.setUseZip64(mode);
}
byte[] buf = new byte[ONE_MILLION];
ZipArchiveEntry zae = new ZipArchiveEntry("0");
if (knownSize) {
zae.setSize(FIVE_BILLION);
zae.setCrc(0x5c316f50L);
}
zae.setMethod(ZipEntry.STORED);
zos.putArchiveEntry(zae);
for (int j = 0; j < FIVE_BILLION / 1000 / 1000; j++) {
zos.write(buf);
}
zos.closeArchiveEntry();
zos.close();
RandomAccessFile a = new RandomAccessFile(f, "r");
try {
getLengthAndPositionAtCentralDirectory(a);
// grab first entry, verify sizes are 0xFFFFFFFF
// and it has a ZIP64 extended information extra
// field
byte[] header = new byte[12];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 1, 2,
// version made by
45, 0,
// version needed to extract
45, 0,
// GPB (EFS bit)
0, 8,
// method
0, 0
}, header);
// ignore timestamp
a.skipBytes(4);
byte[] rest = new byte[31];
a.readFully(rest);
assertArrayEquals(new byte[] {
// CRC
(byte) 0x50, (byte) 0x6F, (byte) 0x31, (byte) 0x5c,
// Compressed Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// Original Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// file name length
1, 0,
// extra field length
20, 0,
// comment length
0, 0,
// disk number
0, 0,
// attributes
0, 0,
0, 0, 0, 0,
// offset
0, 0, 0, 0,
// file name
(byte) '0'
}, rest);
byte[] extra = new byte[20];
a.readFully(extra);
// 5e9 == 0x12A05F200
assertArrayEquals(new byte[] {
// Header-ID
1, 0,
// size of extra
16, 0,
// original size
0, (byte) 0xF2, 5, (byte) 0x2A,
1, 0, 0, 0,
// compressed size
0, (byte) 0xF2, 5, (byte) 0x2A,
1, 0, 0, 0,
}, extra);
// and now validate local file header
a.seek(0);
header = new byte[10];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 3, 4,
// version needed to extract
45, 0,
// GPB (EFS bit)
0, 8,
// method
0, 0
}, header);
// ignore timestamp
a.skipBytes(4);
rest = new byte[17];
a.readFully(rest);
assertArrayEquals(new byte[] {
// CRC
(byte) 0x50, (byte) 0x6F, (byte) 0x31, (byte) 0x5c,
// Compressed Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// Original Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// file name length
1, 0,
// extra field length
20, 0,
// file name
(byte) '0'
}, rest);
a.readFully(extra);
// 5e9 == 0x12A05F200
assertArrayEquals(new byte[] {
// Header-ID
1, 0,
// size of extra
16, 0,
// original size
0, (byte) 0xF2, 5, (byte) 0x2A,
1, 0, 0, 0,
// compressed size
0, (byte) 0xF2, 5, (byte) 0x2A,
1, 0, 0, 0,
}, extra);
} finally {
a.close();
}
}
};
}
/*
* No Compression + Stream => sizes must be known before data is
* written.
*/
@Test public void writeBigStoredEntryToStream() throws Throwable {
withTemporaryArchive("writeBigStoredEntryToStream",
writeBigStoredEntry(true),
false);
}
@Test public void writeBigStoredEntryKnownSizeToFile() throws Throwable {
withTemporaryArchive("writeBigStoredEntryKnownSizeToFile",
writeBigStoredEntry(true),
true);
}
@Test public void writeBigStoredEntryUnnownSizeToFile() throws Throwable {
withTemporaryArchive("writeBigStoredEntryUnknownSizeToFile",
writeBigStoredEntry(false),
true);
}
@Test public void writeBigStoredEntryToStreamModeAlways() throws Throwable {
withTemporaryArchive("writeBigStoredEntryToStreamModeAlways",
writeBigStoredEntry(true, Zip64Mode.Always),
false);
}
@Test public void writeBigStoredEntryKnownSizeToFileModeAlways()
throws Throwable {
withTemporaryArchive("writeBigStoredEntryKnownSizeToFileModeAlways",
writeBigStoredEntry(true, Zip64Mode.Always),
true);
}
@Test public void writeBigStoredEntryUnnownSizeToFileModeAlways()
throws Throwable {
withTemporaryArchive("writeBigStoredEntryUnknownSizeToFileModeAlways",
writeBigStoredEntry(false, Zip64Mode.Always),
true);
}
private static ZipOutputTest
writeBigStoredEntryModeNever(final boolean knownSize) {
return new ZipOutputTest() {
public void test(File f, ZipArchiveOutputStream zos)
throws IOException {
zos.setUseZip64(Zip64Mode.Never);
try {
byte[] buf = new byte[ONE_MILLION];
ZipArchiveEntry zae = new ZipArchiveEntry("0");
if (knownSize) {
zae.setSize(FIVE_BILLION);
zae.setCrc(0x5c316f50L);
}
zae.setMethod(ZipEntry.STORED);
zos.putArchiveEntry(zae);
for (int j = 0; j < FIVE_BILLION / 1000 / 1000; j++) {
zos.write(buf);
}
zos.closeArchiveEntry();
fail("expected a Zip64RequiredException");
} catch (Zip64RequiredException ex) {
assertTrue(ex.getMessage().startsWith("0's size"));
}
}
};
}
@Test public void writeBigStoredEntryToStreamModeNever() throws Throwable {
withTemporaryArchive("writeBigStoredEntryToStreamModeNever",
writeBigStoredEntryModeNever(true),
false);
}
@Test public void writeBigStoredEntryKnownSizeToFileModeNever()
throws Throwable {
withTemporaryArchive("writeBigStoredEntryKnownSizeToFileModeNever",
writeBigStoredEntryModeNever(true),
true);
}
@Test public void writeBigStoredEntryUnnownSizeToFileModeNever()
throws Throwable {
withTemporaryArchive("writeBigStoredEntryUnknownSizeToFileModeNever",
writeBigStoredEntryModeNever(false),
true);
}
/*
* One entry of length 5 billion bytes, written with
* compression to a stream.
*
* Compression + Stream => sizes are set to 0 in LFH and ZIP64
* entry, real values are inside the data descriptor.
*
* Creates a temporary archive of approx 4MB in size
*/
private static ZipOutputTest
writeBigDeflatedEntryToStream(final boolean knownSize,
final Zip64Mode mode) {
return new ZipOutputTest() {
public void test(File f,
ZipArchiveOutputStream zos)
throws IOException {
if (mode != Zip64Mode.AsNeeded) {
zos.setUseZip64(mode);
}
byte[] buf = new byte[ONE_MILLION];
ZipArchiveEntry zae = new ZipArchiveEntry("0");
if (knownSize) {
zae.setSize(FIVE_BILLION);
}
zae.setMethod(ZipEntry.DEFLATED);
zos.putArchiveEntry(zae);
for (int j = 0; j < FIVE_BILLION / 1000 / 1000; j++) {
zos.write(buf);
}
zos.closeArchiveEntry();
zos.close();
RandomAccessFile a =
new RandomAccessFile(f, "r");
try {
getLengthAndPositionAtCentralDirectory(a);
long cfhPos = a.getFilePointer();
// grab first entry, verify
// sizes are 0xFFFFFFFF and
// it has a ZIP64 extended
// information extra field
byte[] header = new byte[12];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 1, 2,
// version made by
45, 0,
// version needed to extract
45, 0,
// GPB (EFS + Data Descriptor)
8, 8,
// method
8, 0,
}, header);
// ignore timestamp
a.skipBytes(4);
byte[] rest = new byte[31];
a.readFully(rest);
assertArrayEquals(new byte[] {
// CRC
(byte) 0x50, (byte) 0x6F, (byte) 0x31, (byte) 0x5c,
// Compressed Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// Original Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// file name length
1, 0,
// extra field length
20, 0,
// comment length
0, 0,
// disk number
0, 0,
// attributes
0, 0,
0, 0, 0, 0,
// offset
0, 0, 0, 0,
// file name
(byte) '0'
}, rest);
byte[] extra = new byte[20];
a.readFully(extra);
// 5e9 == 0x12A05F200
assertArrayEquals(new byte[] {
// Header-ID
1, 0,
// size of extra
16, 0,
// original size
0, (byte) 0xF2, 5, (byte) 0x2A,
1, 0, 0, 0,
// compressed size
(byte) 0x68, (byte) 0x27, (byte) 0x4A, 0,
0, 0, 0, 0,
}, extra);
// validate data descriptor
a.seek(cfhPos - 24);
byte[] dd = new byte[8];
a.readFully(dd);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 7, 8,
// CRC
(byte) 0x50, (byte) 0x6F, (byte) 0x31, (byte) 0x5c,
}, dd);
dd = new byte[16];
a.readFully(dd);
assertArrayEquals(new byte[] {
// compressed size
(byte) 0x68, (byte) 0x27, (byte) 0x4A, 0,
0, 0, 0, 0,
// original size
0, (byte) 0xF2, 5, (byte) 0x2A,
1, 0, 0, 0,
}, dd);
// and now validate local file header
a.seek(0);
header = new byte[10];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 3, 4,
// version needed to extract
45, 0,
// GPB (EFS + Data Descriptor)
8, 8,
// method
8, 0,
}, header);
// ignore timestamp
a.skipBytes(4);
rest = new byte[17];
a.readFully(rest);
assertArrayEquals(new byte[] {
// CRC
0, 0, 0, 0,
// Compressed Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// Original Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// file name length
1, 0,
// extra field length
20, 0,
// file name
(byte) '0'
}, rest);
a.readFully(extra);
assertArrayEquals(new byte[] {
// Header-ID
1, 0,
// size of extra
16, 0,
// original size
0, 0, 0, 0,
0, 0, 0, 0,
// compressed size
0, 0, 0, 0,
0, 0, 0, 0,
}, extra);
} finally {
a.close();
}
}
};
}
@Test public void writeBigDeflatedEntryKnownSizeToStream()
throws Throwable {
withTemporaryArchive("writeBigDeflatedEntryKnownSizeToStream",
writeBigDeflatedEntryToStream(true,
Zip64Mode.AsNeeded),
false);
}
@Test public void writeBigDeflatedEntryKnownSizeToStreamModeAlways()
throws Throwable {
withTemporaryArchive("writeBigDeflatedEntryKnownSizeToStreamModeAlways",
writeBigDeflatedEntryToStream(true,
Zip64Mode.Always),
false);
}
@Test public void writeBigDeflatedEntryUnknownSizeToStreamModeAlways()
throws Throwable {
withTemporaryArchive("writeBigDeflatedEntryUnknownSizeToStreamModeAlways",
writeBigDeflatedEntryToStream(false,
Zip64Mode.Always),
false);
}
private static ZipOutputTest
writeBigDeflatedEntryUnknownSizeToStream(final Zip64Mode mode) {
return new ZipOutputTest() {
public void test(File f, ZipArchiveOutputStream zos)
throws IOException {
try {
if (mode != Zip64Mode.AsNeeded) {
zos.setUseZip64(mode);
}
byte[] buf = new byte[ONE_MILLION];
ZipArchiveEntry zae = new ZipArchiveEntry("0");
zae.setMethod(ZipEntry.DEFLATED);
zos.putArchiveEntry(zae);
for (int j = 0; j < FIVE_BILLION / 1000 / 1000; j++) {
zos.write(buf);
}
zos.closeArchiveEntry();
fail("expected a Zip64RequiredException");
} catch (Zip64RequiredException ex) {
assertTrue(ex.getMessage().startsWith("0's size"));
}
}
};
}
@Test public void writeBigDeflatedEntryUnknownSizeToStream()
throws Throwable {
withTemporaryArchive("writeBigDeflatedEntryUnknownSizeToStream",
writeBigDeflatedEntryUnknownSizeToStream(Zip64Mode
.AsNeeded),
false);
}
@Test public void writeBigDeflatedEntryUnknownSizeToStreamModeNever()
throws Throwable {
withTemporaryArchive("writeBigDeflatedEntryUnknownSizeToStreamModeNever",
writeBigDeflatedEntryUnknownSizeToStream(Zip64Mode
.Never),
false);
}
private static ZipOutputTest
writeBigDeflatedEntryToFile(final boolean knownSize) {
return writeBigDeflatedEntryToFile(knownSize, Zip64Mode.AsNeeded);
}
/*
* One entry of length 5 billion bytes, written with
* compression to a file.
*
* Writing to a file => sizes are stored directly inside the LFH.
* No Data Descriptor at all.
*
* Creates a temporary archive of approx 4MB in size
*/
private static ZipOutputTest
writeBigDeflatedEntryToFile(final boolean knownSize,
final Zip64Mode mode) {
return new ZipOutputTest() {
public void test(File f, ZipArchiveOutputStream zos)
throws IOException {
if (mode != Zip64Mode.AsNeeded) {
zos.setUseZip64(mode);
}
byte[] buf = new byte[ONE_MILLION];
ZipArchiveEntry zae = new ZipArchiveEntry("0");
if (knownSize) {
zae.setSize(FIVE_BILLION);
}
zae.setMethod(ZipEntry.DEFLATED);
zos.putArchiveEntry(zae);
for (int j = 0;
j < FIVE_BILLION / 1000 / 1000;
j++) {
zos.write(buf);
}
zos.closeArchiveEntry();
zos.close();
RandomAccessFile a = new RandomAccessFile(f, "r");
try {
getLengthAndPositionAtCentralDirectory(a);
// grab first entry, verify
// sizes are 0xFFFFFFFF and
// it has a ZIP64 extended
// information extra field
byte[] header = new byte[12];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 1, 2,
// version made by
45, 0,
// version needed to extract
45, 0,
// GPB (EFS + *no* Data Descriptor)
0, 8,
// method
8, 0,
}, header);
// ignore timestamp
a.skipBytes(4);
byte[] rest = new byte[31];
a.readFully(rest);
assertArrayEquals(new byte[] {
// CRC
(byte) 0x50, (byte) 0x6F, (byte) 0x31, (byte) 0x5c,
// Compressed Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// Original Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// file name length
1, 0,
// extra field length
20, 0,
// comment length
0, 0,
// disk number
0, 0,
// attributes
0, 0,
0, 0, 0, 0,
// offset
0, 0, 0, 0,
// file name
(byte) '0'
}, rest);
byte[] extra = new byte[20];
a.readFully(extra);
// 5e9 == 0x12A05F200
assertArrayEquals(new byte[] {
// Header-ID
1, 0,
// size of extra
16, 0,
// original size
0, (byte) 0xF2, 5, (byte) 0x2A,
1, 0, 0, 0,
// compressed size
(byte) 0x68, (byte) 0x27, (byte) 0x4A, 0,
0, 0, 0, 0,
}, extra);
// and now validate local file header
a.seek(0);
header = new byte[10];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 3, 4,
// version needed to extract
45, 0,
// GPB (EFS bit, no DD)
0, 8,
// method
8, 0,
}, header);
// ignore timestamp
a.skipBytes(4);
rest = new byte[17];
a.readFully(rest);
assertArrayEquals(new byte[] {
// CRC
(byte) 0x50, (byte) 0x6F, (byte) 0x31, (byte) 0x5c,
// Compressed Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// Original Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// file name length
1, 0,
// extra field length
20, 0,
// file name
(byte) '0'
}, rest);
extra = new byte[20];
a.readFully(extra);
assertArrayEquals(new byte[] {
// Header-ID
1, 0,
// size of extra
16, 0,
// original size
0, (byte) 0xF2, 5, (byte) 0x2A,
1, 0, 0, 0,
// compressed size
(byte) 0x68, (byte) 0x27, (byte) 0x4A, 0,
0, 0, 0, 0,
}, extra);
} finally {
a.close();
}
}
};
}
@Test public void writeBigDeflatedEntryKnownSizeToFile()
throws Throwable {
withTemporaryArchive("writeBigDeflatedEntryKnownSizeToFile",
writeBigDeflatedEntryToFile(true),
true);
}
@Test public void writeBigDeflatedEntryUnknownSizeToFile()
throws Throwable {
withTemporaryArchive("writeBigDeflatedEntryUnknownSizeToFile",
writeBigDeflatedEntryToFile(false),
true);
}
@Test public void writeBigDeflatedEntryKnownSizeToFileModeAlways()
throws Throwable {
withTemporaryArchive("writeBigDeflatedEntryKnownSizeToFileModeAlways",
writeBigDeflatedEntryToFile(true, Zip64Mode.Always),
true);
}
@Test public void writeBigDeflatedEntryUnknownSizeToFileModeAlways()
throws Throwable {
withTemporaryArchive("writeBigDeflatedEntryUnknownSizeToFileModeAlways",
writeBigDeflatedEntryToFile(false,
Zip64Mode.Always),
true);
}
@Test public void writeBigDeflatedEntryKnownSizeToStreamModeNever()
throws Throwable {
withTemporaryArchive("writeBigDeflatedEntryKnownSizeToStreamModeNever",
new ZipOutputTest() {
public void test(File f,
ZipArchiveOutputStream zos)
throws IOException {
zos.setUseZip64(Zip64Mode.Never);
try {
ZipArchiveEntry zae =
new ZipArchiveEntry("0");
zae.setSize(FIVE_BILLION);
zae.setMethod(ZipEntry.DEFLATED);
zos.putArchiveEntry(zae);
fail("expected a"
+ " Zip64RequiredException");
} catch (Zip64RequiredException ex) {
assertTrue(ex.getMessage()
.startsWith("0's size"));
}
}
},
false);
}
/*
* One entry of length 5 billion bytes, written with
* compression to a file.
*
* Writing to a file => sizes are stored directly inside the LFH.
* No Data Descriptor at all.
*
* Creates a temporary archive of approx 4MB in size
*/
private static ZipOutputTest
writeBigDeflatedEntryToFileModeNever(final boolean knownSize) {
return new ZipOutputTest() {
public void test(File f, ZipArchiveOutputStream zos)
throws IOException {
zos.setUseZip64(Zip64Mode.Never);
try {
byte[] buf = new byte[ONE_MILLION];
ZipArchiveEntry zae = new ZipArchiveEntry("0");
if (knownSize) {
zae.setSize(FIVE_BILLION);
}
zae.setMethod(ZipEntry.DEFLATED);
zos.putArchiveEntry(zae);
for (int j = 0;
j < FIVE_BILLION / 1000 / 1000;
j++) {
zos.write(buf);
}
zos.closeArchiveEntry();
fail("expected a Zip64RequiredException");
} catch (Zip64RequiredException ex) {
assertTrue(ex.getMessage().startsWith("0's size"));
}
}
};
}
@Test public void writeBigDeflatedEntryKnownSizeToFileModeNever()
throws Throwable {
withTemporaryArchive("writeBigDeflatedEntryKnownSizeToFileModeNever",
writeBigDeflatedEntryToFileModeNever(true),
true);
}
@Test public void writeBigDeflatedEntryUnknownSizeToFileModeNever()
throws Throwable {
withTemporaryArchive("writeBigDeflatedEntryUnknownSizeToFileModeNever",
writeBigDeflatedEntryToFileModeNever(false),
true);
}
private static ZipOutputTest writeSmallStoredEntry(final boolean knownSize) {
return writeSmallStoredEntry(knownSize, Zip64Mode.AsNeeded);
}
/*
* One entry of length 1 million bytes, written without compression.
*
* No Compression => sizes are stored directly inside the LFH. No
* Data Descriptor at all. Shouldn't contain any ZIP64 extra
* field if size was known.
*
* Creates a temporary archive of approx 1MB in size
*/
private static ZipOutputTest writeSmallStoredEntry(final boolean knownSize,
final Zip64Mode mode) {
return new ZipOutputTest() {
public void test(File f, ZipArchiveOutputStream zos)
throws IOException {
if (mode != Zip64Mode.AsNeeded) {
zos.setUseZip64(mode);
}
byte[] buf = new byte[ONE_MILLION];
ZipArchiveEntry zae = new ZipArchiveEntry("0");
if (knownSize) {
zae.setSize(ONE_MILLION);
zae.setCrc(0x1279CB9EL);
}
zae.setMethod(ZipEntry.STORED);
zos.putArchiveEntry(zae);
zos.write(buf);
zos.closeArchiveEntry();
zos.close();
RandomAccessFile a = new RandomAccessFile(f, "r");
try {
getLengthAndPositionAtCentralDirectory(a);
// grab first CF entry, verify sizes are 1e6 and it
// has no ZIP64 extended information extra field
// at all
byte[] header = new byte[12];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 1, 2,
// version made by
20, 0,
// version needed to extract
10, 0,
// GPB (EFS bit)
0, 8,
// method
0, 0
}, header);
// ignore timestamp
a.skipBytes(4);
byte[] rest = new byte[31];
a.readFully(rest);
// 1e6 == 0xF4240
assertArrayEquals(new byte[] {
// CRC
(byte) 0x9E, (byte) 0xCB, (byte) 0x79, (byte) 0x12,
// Compressed Size
(byte) 0x40, (byte) 0x42, (byte) 0x0F, 0,
// Original Size
(byte) 0x40, (byte) 0x42, (byte) 0x0F, 0,
// file name length
1, 0,
// extra field length
0, 0,
// comment length
0, 0,
// disk number
0, 0,
// attributes
0, 0,
0, 0, 0, 0,
// offset
0, 0, 0, 0,
// file name
(byte) '0'
}, rest);
// and now validate local file header: this one
// has a ZIP64 extra field if and only if size was
// unknown and mode was not Never or the mode was
// Always (regardless of size)
boolean hasExtra = mode == Zip64Mode.Always
|| (mode == Zip64Mode.AsNeeded && !knownSize);
a.seek(0);
header = new byte[10];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 3, 4,
// version needed to extract
10, 0,
// GPB (EFS bit)
0, 8,
// method
0, 0
}, header);
// ignore timestamp
a.skipBytes(4);
rest = new byte[17];
a.readFully(rest);
// 1e6 == 0xF4240
assertArrayEquals(new byte[] {
// CRC
(byte) 0x9E, (byte) 0xCB, (byte) 0x79, (byte) 0x12,
// Compressed Size
(byte) 0x40, (byte) 0x42, (byte) 0x0F, 0,
// Original Size
(byte) 0x40, (byte) 0x42, (byte) 0x0F, 0,
// file name length
1, 0,
// extra field length
(byte) (!hasExtra ? 0 : 20), 0,
// file name
(byte) '0'
}, rest);
if (hasExtra) {
byte[] extra = new byte[20];
a.readFully(extra);
assertArrayEquals(new byte[] {
// Header-ID
1, 0,
// size of extra
16, 0,
// original size
(byte) 0x40, (byte) 0x42, (byte) 0x0F, 0,
0, 0, 0, 0,
// compressed size
(byte) 0x40, (byte) 0x42, (byte) 0x0F, 0,
0, 0, 0, 0,
}, extra);
}
} finally {
a.close();
}
}
};
}
@Test public void writeSmallStoredEntryToStream() throws Throwable {
withTemporaryArchive("writeSmallStoredEntryToStream",
writeSmallStoredEntry(true),
false);
}
@Test public void writeSmallStoredEntryKnownSizeToFile() throws Throwable {
withTemporaryArchive("writeSmallStoredEntryKnownSizeToFile",
writeSmallStoredEntry(true),
true);
}
@Test public void writeSmallStoredEntryUnnownSizeToFile() throws Throwable {
withTemporaryArchive("writeSmallStoredEntryUnknownSizeToFile",
writeSmallStoredEntry(false),
true);
}
@Test public void writeSmallStoredEntryToStreamModeNever() throws Throwable {
withTemporaryArchive("writeSmallStoredEntryToStreamModeNever",
writeSmallStoredEntry(true, Zip64Mode.Never),
false);
}
@Test public void writeSmallStoredEntryKnownSizeToFileModeNever()
throws Throwable {
withTemporaryArchive("writeSmallStoredEntryKnownSizeToFileModeNever",
writeSmallStoredEntry(true, Zip64Mode.Never),
true);
}
@Test public void writeSmallStoredEntryUnnownSizeToFileModeNever()
throws Throwable {
withTemporaryArchive("writeSmallStoredEntryUnknownSizeToFileModeNever",
writeSmallStoredEntry(false, Zip64Mode.Never),
true);
}
/*
* One entry of length 1 million bytes, written without compression.
*
* No Compression => sizes are stored directly inside the LFH. No
* Data Descriptor at all. Contains ZIP64 extra fields because
* mode is Always
*
* Creates a temporary archive of approx 1MB in size
*/
private static ZipOutputTest
writeSmallStoredEntryModeAlways(final boolean knownSize) {
return new ZipOutputTest() {
public void test(File f, ZipArchiveOutputStream zos)
throws IOException {
zos.setUseZip64(Zip64Mode.Always);
byte[] buf = new byte[ONE_MILLION];
ZipArchiveEntry zae = new ZipArchiveEntry("0");
if (knownSize) {
zae.setSize(ONE_MILLION);
zae.setCrc(0x1279CB9EL);
}
zae.setMethod(ZipEntry.STORED);
zos.putArchiveEntry(zae);
zos.write(buf);
zos.closeArchiveEntry();
zos.close();
RandomAccessFile a = new RandomAccessFile(f, "r");
try {
getLengthAndPositionAtCentralDirectory(a);
// grab first CF entry, verify sizes are 1e6 and it
// has an empty ZIP64 extended information extra field
byte[] header = new byte[12];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 1, 2,
// version made by
45, 0,
// version needed to extract
45, 0,
// GPB (EFS bit)
0, 8,
// method
0, 0
}, header);
// ignore timestamp
a.skipBytes(4);
byte[] rest = new byte[31];
a.readFully(rest);
// 1e6 == 0xF4240
assertArrayEquals(new byte[] {
// CRC
(byte) 0x9E, (byte) 0xCB, (byte) 0x79, (byte) 0x12,
// Compressed Size
(byte) 0x40, (byte) 0x42, (byte) 0x0F, 0,
// Original Size
(byte) 0x40, (byte) 0x42, (byte) 0x0F, 0,
// file name length
1, 0,
// extra field length
4, 0,
// comment length
0, 0,
// disk number
0, 0,
// attributes
0, 0,
0, 0, 0, 0,
// offset
0, 0, 0, 0,
// file name
(byte) '0'
}, rest);
byte[] extra = new byte[4];
a.readFully(extra);
assertArrayEquals(new byte[] {
// Header-ID
1, 0,
// size of extra
0, 0,
}, extra);
// and now validate local file header: this one
// has a ZIP64 extra field as the mode was
// Always
a.seek(0);
header = new byte[10];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 3, 4,
// version needed to extract
45, 0,
// GPB (EFS bit)
0, 8,
// method
0, 0
}, header);
// ignore timestamp
a.skipBytes(4);
rest = new byte[17];
a.readFully(rest);
// 1e6 == 0xF4240
assertArrayEquals(new byte[] {
// CRC
(byte) 0x9E, (byte) 0xCB, (byte) 0x79, (byte) 0x12,
// Compressed Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// Original Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// file name length
1, 0,
// extra field length
20, 0,
// file name
(byte) '0'
}, rest);
extra = new byte[20];
a.readFully(extra);
assertArrayEquals(new byte[] {
// Header-ID
1, 0,
// size of extra
16, 0,
// original size
(byte) 0x40, (byte) 0x42, (byte) 0x0F, 0,
0, 0, 0, 0,
// compressed size
(byte) 0x40, (byte) 0x42, (byte) 0x0F, 0,
0, 0, 0, 0,
}, extra);
} finally {
a.close();
}
}
};
}
@Test public void writeSmallStoredEntryToStreamModeAlways()
throws Throwable {
withTemporaryArchive("writeSmallStoredEntryToStreamModeAlways",
writeSmallStoredEntryModeAlways(true),
false);
}
@Test public void writeSmallStoredEntryKnownSizeToFileModeAlways()
throws Throwable {
withTemporaryArchive("writeSmallStoredEntryKnownSizeToFileModeAlways",
writeSmallStoredEntryModeAlways(true),
true);
}
@Test public void writeSmallStoredEntryUnnownSizeToFileModeAlways()
throws Throwable {
withTemporaryArchive("writeSmallStoredEntryUnknownSizeToFileModeAlways",
writeSmallStoredEntryModeAlways(false),
true);
}
/*
* One entry of length 1 million bytes, written with compression
* to a stream.
*
* Compression + Stream => sizes are set to 0 in LFH, real values
* are inside the data descriptor. No ZIP64 extra field at all.
*/
private static ZipOutputTest
writeSmallDeflatedEntryToStream(final boolean knownSize,
final Zip64Mode mode) {
return new ZipOutputTest() {
public void test(File f, ZipArchiveOutputStream zos)
throws IOException {
if (mode != Zip64Mode.AsNeeded) {
zos.setUseZip64(mode);
}
byte[] buf = new byte[ONE_MILLION];
ZipArchiveEntry zae = new ZipArchiveEntry("0");
if (knownSize) {
zae.setSize(ONE_MILLION);
}
zae.setMethod(ZipEntry.DEFLATED);
zos.putArchiveEntry(zae);
zos.write(buf);
zos.closeArchiveEntry();
zos.close();
RandomAccessFile a = new RandomAccessFile(f, "r");
try {
getLengthAndPositionAtCentralDirectory(a);
long cfhPos = a.getFilePointer();
// grab first entry, verify sizes are not
// 0xFFFFFFF and it has no ZIP64 extended
// information extra field
byte[] header = new byte[12];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 1, 2,
// version made by
20, 0,
// version needed to extract
20, 0,
// GPB (EFS + Data Descriptor)
8, 8,
// method
8, 0,
}, header);
// ignore timestamp
a.skipBytes(4);
byte[] crc = new byte[4];
a.readFully(crc);
assertArrayEquals(new byte[] {
(byte) 0x9E, (byte) 0xCB,
(byte) 0x79, (byte) 0x12,
}, crc);
// skip compressed size
a.skipBytes(4);
byte[] rest = new byte[23];
a.readFully(rest);
assertArrayEquals(new byte[] {
// Original Size
(byte) 0x40, (byte) 0x42,
(byte) 0x0F, 0,
// file name length
1, 0,
// extra field length
0, 0,
// comment length
0, 0,
// disk number
0, 0,
// attributes
0, 0,
0, 0, 0, 0,
// offset
0, 0, 0, 0,
// file name
(byte) '0'
}, rest);
// validate data descriptor
a.seek(cfhPos - 16);
byte[] dd = new byte[8];
a.readFully(dd);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 7, 8,
// CRC
(byte) 0x9E, (byte) 0xCB, (byte) 0x79, (byte) 0x12,
}, dd);
// skip uncompressed size
a.skipBytes(4);
dd = new byte[4];
a.readFully(dd);
assertArrayEquals(new byte[] {
// original size
(byte) 0x40, (byte) 0x42, (byte) 0x0F, 0,
}, dd);
// and now validate local file header
a.seek(0);
header = new byte[10];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 3, 4,
// version needed to extract
20, 0,
// GPB (EFS + Data Descriptor)
8, 8,
// method
8, 0,
}, header);
// ignore timestamp
a.skipBytes(4);
rest = new byte[17];
a.readFully(rest);
assertArrayEquals(new byte[] {
// CRC
0, 0, 0, 0,
// Compressed Size
0, 0, 0, 0,
// Original Size
0, 0, 0, 0,
// file name length
1, 0,
// extra field length
0, 0,
// file name
(byte) '0'
}, rest);
} finally {
a.close();
}
}
};
}
@Test public void writeSmallDeflatedEntryKnownSizeToStream()
throws Throwable {
withTemporaryArchive("writeSmallDeflatedEntryKnownSizeToStream",
writeSmallDeflatedEntryToStream(true,
Zip64Mode.AsNeeded),
false);
}
@Test public void writeSmallDeflatedEntryKnownSizeToStreamModeNever()
throws Throwable {
withTemporaryArchive("writeSmallDeflatedEntryKnownSizeToStreamModeNever",
writeSmallDeflatedEntryToStream(true,
Zip64Mode.Never),
false);
}
@Test public void writeSmallDeflatedEntryUnknownSizeToStream()
throws Throwable {
withTemporaryArchive("writeSmallDeflatedEntryUnknownSizeToStream",
writeSmallDeflatedEntryToStream(false,
Zip64Mode.AsNeeded),
false);
}
@Test public void writeSmallDeflatedEntryUnknownSizeToStreamModeNever()
throws Throwable {
withTemporaryArchive("writeSmallDeflatedEntryUnknownSizeToStreamModeNever",
writeSmallDeflatedEntryToStream(false,
Zip64Mode.Never),
false);
}
/*
* One entry of length 1 million bytes, written with compression
* to a stream.
*
* Compression + Stream => sizes are set to 0 in LFH, real values
* are inside the data descriptor. ZIP64 extra field as mode is Always.
*/
private static ZipOutputTest
writeSmallDeflatedEntryToStreamModeAlways(final boolean knownSize) {
return new ZipOutputTest() {
public void test(File f, ZipArchiveOutputStream zos)
throws IOException {
zos.setUseZip64(Zip64Mode.Always);
byte[] buf = new byte[ONE_MILLION];
ZipArchiveEntry zae = new ZipArchiveEntry("0");
if (knownSize) {
zae.setSize(ONE_MILLION);
}
zae.setMethod(ZipEntry.DEFLATED);
zos.putArchiveEntry(zae);
zos.write(buf);
zos.closeArchiveEntry();
zos.close();
RandomAccessFile a = new RandomAccessFile(f, "r");
try {
getLengthAndPositionAtCentralDirectory(a);
long cfhPos = a.getFilePointer();
// grab first entry, verify sizes are not
// 0xFFFFFFF and it has an empty ZIP64 extended
// information extra field
byte[] header = new byte[12];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 1, 2,
// version made by
45, 0,
// version needed to extract
45, 0,
// GPB (EFS + Data Descriptor)
8, 8,
// method
8, 0,
}, header);
// ignore timestamp
a.skipBytes(4);
byte[] crc = new byte[4];
a.readFully(crc);
assertArrayEquals(new byte[] {
(byte) 0x9E, (byte) 0xCB,
(byte) 0x79, (byte) 0x12,
}, crc);
// skip compressed size
a.skipBytes(4);
byte[] rest = new byte[23];
a.readFully(rest);
assertArrayEquals(new byte[] {
// Original Size
(byte) 0x40, (byte) 0x42,
(byte) 0x0F, 0,
// file name length
1, 0,
// extra field length
4, 0,
// comment length
0, 0,
// disk number
0, 0,
// attributes
0, 0,
0, 0, 0, 0,
// offset
0, 0, 0, 0,
// file name
(byte) '0'
}, rest);
byte[] extra = new byte[4];
a.readFully(extra);
assertArrayEquals(new byte[] {
// Header-ID
1, 0,
// size of extra
0, 0,
}, extra);
// validate data descriptor
a.seek(cfhPos - 24);
byte[] dd = new byte[8];
a.readFully(dd);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 7, 8,
// CRC
(byte) 0x9E, (byte) 0xCB, (byte) 0x79, (byte) 0x12,
}, dd);
// skip compressed size
a.skipBytes(8);
dd = new byte[8];
a.readFully(dd);
assertArrayEquals(new byte[] {
// original size
(byte) 0x40, (byte) 0x42, (byte) 0x0F, 0,
0, 0, 0, 0
}, dd);
// and now validate local file header
a.seek(0);
header = new byte[10];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 3, 4,
// version needed to extract
45, 0,
// GPB (EFS + Data Descriptor)
8, 8,
// method
8, 0,
}, header);
// ignore timestamp
a.skipBytes(4);
rest = new byte[17];
a.readFully(rest);
assertArrayEquals(new byte[] {
// CRC
0, 0, 0, 0,
// Compressed Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// Original Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// file name length
1, 0,
// extra field length
20, 0,
// file name
(byte) '0'
}, rest);
extra = new byte[20];
a.readFully(extra);
assertArrayEquals(new byte[] {
// Header-ID
1, 0,
// size of extra
16, 0,
// original size
0, 0, 0, 0,
0, 0, 0, 0,
// compressed size
0, 0, 0, 0,
0, 0, 0, 0,
}, extra);
} finally {
a.close();
}
}
};
}
@Test public void writeSmallDeflatedEntryKnownSizeToStreamModeAlways()
throws Throwable {
withTemporaryArchive("writeSmallDeflatedEntryKnownSizeToStreamModeAlways",
writeSmallDeflatedEntryToStreamModeAlways(true),
false);
}
@Test public void writeSmallDeflatedEntryUnknownSizeToStreamModeAlways()
throws Throwable {
withTemporaryArchive("writeSmallDeflatedEntryUnknownSizeToStreamModeAlways",
writeSmallDeflatedEntryToStreamModeAlways(false),
false);
}
private static ZipOutputTest writeSmallDeflatedEntryToFile(final boolean knownSize) {
return writeSmallDeflatedEntryToFile(knownSize, Zip64Mode.AsNeeded);
}
/*
* One entry of length 1 million bytes, written with compression
* to a file.
*
* Writing to a file => sizes are stored directly inside the LFH.
* No Data Descriptor at all. Shouldn't contain any ZIP64 extra
* field if size was known.
*/
private static ZipOutputTest
writeSmallDeflatedEntryToFile(final boolean knownSize,
final Zip64Mode mode) {
return new ZipOutputTest() {
public void test(File f, ZipArchiveOutputStream zos)
throws IOException {
if (mode != Zip64Mode.AsNeeded) {
zos.setUseZip64(mode);
}
byte[] buf = new byte[ONE_MILLION];
ZipArchiveEntry zae = new ZipArchiveEntry("0");
if (knownSize) {
zae.setSize(ONE_MILLION);
}
zae.setMethod(ZipEntry.DEFLATED);
zos.putArchiveEntry(zae);
zos.write(buf);
zos.closeArchiveEntry();
zos.close();
RandomAccessFile a = new RandomAccessFile(f, "r");
try {
getLengthAndPositionAtCentralDirectory(a);
// grab first CD entry, verify sizes are not
// 0xFFFFFFFF and it has a no ZIP64 extended
// information extra field
byte[] header = new byte[12];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 1, 2,
// version made by
20, 0,
// version needed to extract
10, 0,
// GPB (EFS + *no* Data Descriptor)
0, 8,
// method
8, 0,
}, header);
// ignore timestamp
a.skipBytes(4);
byte[] crc = new byte[4];
a.readFully(crc);
assertArrayEquals(new byte[] {
(byte) 0x9E, (byte) 0xCB,
(byte) 0x79, (byte) 0x12,
}, crc);
// skip compressed size
a.skipBytes(4);
byte[] rest = new byte[23];
a.readFully(rest);
assertArrayEquals(new byte[] {
// Original Size
(byte) 0x40, (byte) 0x42, (byte) 0x0F, 0,
// file name length
1, 0,
// extra field length
0, 0,
// comment length
0, 0,
// disk number
0, 0,
// attributes
0, 0,
0, 0, 0, 0,
// offset
0, 0, 0, 0,
// file name
(byte) '0'
}, rest);
// and now validate local file header
a.seek(0);
header = new byte[10];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 3, 4,
// version needed to extract
10, 0,
// GPB (EFS bit, no DD)
0, 8,
// method
8, 0,
}, header);
// ignore timestamp
a.skipBytes(4);
crc = new byte[4];
a.readFully(crc);
assertArrayEquals(new byte[] {
(byte) 0x9E, (byte) 0xCB,
(byte) 0x79, (byte) 0x12,
}, crc);
// skip compressed size
a.skipBytes(4);
rest = new byte[9];
a.readFully(rest);
boolean hasExtra =
mode == Zip64Mode.AsNeeded && !knownSize;
assertArrayEquals(new byte[] {
// Original Size
(byte) 0x40, (byte) 0x42, (byte) 0x0F, 0,
// file name length
1, 0,
// extra field length
(byte) (!hasExtra ? 0 : 20), 0,
// file name
(byte) '0'
}, rest);
if (hasExtra) {
byte[] extra = new byte[12];
a.readFully(extra);
assertArrayEquals(new byte[] {
// Header-ID
1, 0,
// size of extra
16, 0,
// original size
(byte) 0x40, (byte) 0x42, (byte) 0x0F, 0,
0, 0, 0, 0,
// don't know the
// compressed size,
// don't want to
// hard-code it
}, extra);
}
} finally {
a.close();
}
}
};
}
@Test public void writeSmallDeflatedEntryKnownSizeToFile()
throws Throwable {
withTemporaryArchive("writeSmallDeflatedEntryKnownSizeToFile",
writeSmallDeflatedEntryToFile(true),
true);
}
@Test public void writeSmallDeflatedEntryUnknownSizeToFile()
throws Throwable {
withTemporaryArchive("writeSmallDeflatedEntryUnknownSizeToFile",
writeSmallDeflatedEntryToFile(false),
true);
}
@Test public void writeSmallDeflatedEntryKnownSizeToFileModeNever()
throws Throwable {
withTemporaryArchive("writeSmallDeflatedEntryKnownSizeToFileModeNever",
writeSmallDeflatedEntryToFile(true,
Zip64Mode.Never),
true);
}
@Test public void writeSmallDeflatedEntryUnknownSizeToFileModeNever()
throws Throwable {
withTemporaryArchive("writeSmallDeflatedEntryUnknownSizeToFileModeNever",
writeSmallDeflatedEntryToFile(false,
Zip64Mode.Never),
true);
}
/*
* One entry of length 1 million bytes, written with compression
* to a file.
*
* Writing to a file => sizes are stored directly inside the LFH.
* No Data Descriptor at all. Must contain ZIP64 extra field as
* mode is Always.
*/
private static ZipOutputTest
writeSmallDeflatedEntryToFileModeAlways(final boolean knownSize) {
return new ZipOutputTest() {
public void test(File f, ZipArchiveOutputStream zos)
throws IOException {
zos.setUseZip64(Zip64Mode.Always);
byte[] buf = new byte[ONE_MILLION];
ZipArchiveEntry zae = new ZipArchiveEntry("0");
if (knownSize) {
zae.setSize(ONE_MILLION);
}
zae.setMethod(ZipEntry.DEFLATED);
zos.putArchiveEntry(zae);
zos.write(buf);
zos.closeArchiveEntry();
zos.close();
RandomAccessFile a = new RandomAccessFile(f, "r");
try {
getLengthAndPositionAtCentralDirectory(a);
// grab first CD entry, verify sizes are not
// 0xFFFFFFFF and it has a an empty ZIP64 extended
// information extra field
byte[] header = new byte[12];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 1, 2,
// version made by
45, 0,
// version needed to extract
45, 0,
// GPB (EFS + *no* Data Descriptor)
0, 8,
// method
8, 0,
}, header);
// ignore timestamp
a.skipBytes(4);
byte[] crc = new byte[4];
a.readFully(crc);
assertArrayEquals(new byte[] {
(byte) 0x9E, (byte) 0xCB, (byte) 0x79, (byte) 0x12,
}, crc);
// skip compressed size
a.skipBytes(4);
byte[] rest = new byte[23];
a.readFully(rest);
assertArrayEquals(new byte[] {
// Original Size
(byte) 0x40, (byte) 0x42, (byte) 0x0F, 0,
// file name length
1, 0,
// extra field length
4, 0,
// comment length
0, 0,
// disk number
0, 0,
// attributes
0, 0,
0, 0, 0, 0,
// offset
0, 0, 0, 0,
// file name
(byte) '0'
}, rest);
byte[] extra = new byte[4];
a.readFully(extra);
assertArrayEquals(new byte[] {
// Header-ID
1, 0,
// size of extra
0, 0,
}, extra);
// and now validate local file header
a.seek(0);
header = new byte[10];
a.readFully(header);
assertArrayEquals(new byte[] {
// sig
(byte) 0x50, (byte) 0x4b, 3, 4,
// version needed to extract
45, 0,
// GPB (EFS bit, no DD)
0, 8,
// method
8, 0,
}, header);
// ignore timestamp
a.skipBytes(4);
crc = new byte[4];
a.readFully(crc);
assertArrayEquals(new byte[] {
(byte) 0x9E, (byte) 0xCB,
(byte) 0x79, (byte) 0x12,
}, crc);
rest = new byte[13];
a.readFully(rest);
assertArrayEquals(new byte[] {
// Compressed Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// Original Size
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
// file name length
1, 0,
// extra field length
20, 0,
// file name
(byte) '0'
}, rest);
extra = new byte[12];
a.readFully(extra);
assertArrayEquals(new byte[] {
// Header-ID
1, 0,
// size of extra
16, 0,
// original size
(byte) 0x40, (byte) 0x42, (byte) 0x0F, 0,
0, 0, 0, 0,
// don't know the
// compressed size,
// don't want to
// hard-code it
}, extra);
} finally {
a.close();
}
}
};
}
@Test public void writeSmallDeflatedEntryKnownSizeToFileModeAlways()
throws Throwable {
withTemporaryArchive("writeSmallDeflatedEntryKnownSizeToFileModeAlways",
writeSmallDeflatedEntryToFileModeAlways(true),
true);
}
@Test public void writeSmallDeflatedEntryUnknownSizeToFileModeAlways()
throws Throwable {
withTemporaryArchive("writeSmallDeflatedEntryUnknownSizeToFileModeAlways",
writeSmallDeflatedEntryToFileModeAlways(false),
true);
}
static interface ZipOutputTest {
void test(File f, ZipArchiveOutputStream zos) throws IOException;
}
private static void withTemporaryArchive(String testName,
ZipOutputTest test,
boolean useRandomAccessFile)
throws Throwable {
File f = getTempFile(testName);
BufferedOutputStream os = null;
ZipArchiveOutputStream zos = useRandomAccessFile
? new ZipArchiveOutputStream(f)
: new ZipArchiveOutputStream(os = new BufferedOutputStream(new FileOutputStream(f)));
try {
test.test(f, zos);
} catch (IOException ex) {
System.err.println("Failed to write archive because of: "
+ ex.getMessage()
+ " - likely not enough disk space.");
assumeTrue(false);
} finally {
try {
zos.destroy();
} finally {
if (os != null) {
os.close();
}
AbstractTestCase.tryHardToDelete(f);
}
}
}
private static File get5GBZerosFile() throws Throwable {
return getFile("5GB_of_Zeros.zip");
}
private static File get5GBZerosFileGeneratedBy7ZIP() throws Throwable {
return getFile("5GB_of_Zeros_7ZIP.zip");
}
private static File get5GBZerosFileGeneratedByJava7Jar() throws Throwable {
return getFile("5GB_of_Zeros_jar.zip");
}
private static File get5GBZerosFileGeneratedByWinZIP() throws Throwable {
return getFile("5GB_of_Zeros_WinZip.zip");
}
private static File get5GBZerosFileGeneratedByPKZip() throws Throwable {
return getFile("5GB_of_Zeros_PKZip.zip");
}
private static File get100KFileFile() throws Throwable {
return getFile("100k_Files.zip");
}
private static File get100KFileFileGeneratedBy7ZIP() throws Throwable {
return getFile("100k_Files_7ZIP.zip");
}
private static File get100KFileFileGeneratedByWinCF() throws Throwable {
return getFile("100k_Files_WindowsCompressedFolders.zip");
}
private static File get100KFileFileGeneratedByJava7Jar() throws Throwable {
return getFile("100k_Files_jar.zip");
}
private static File get100KFileFileGeneratedByWinZIP() throws Throwable {
return getFile("100k_Files_WinZIP.zip");
}
private static File get100KFileFileGeneratedByPKZip() throws Throwable {
return getFile("100k_Files_PKZip.zip");
}
private static File getTempFile(String testName) throws Throwable {
File f = File.createTempFile("commons-compress-" + testName, ".zip");
f.deleteOnExit();
return f;
}
private static void read5GBOfZerosImpl(File f, String expectedName)
throws IOException {
FileInputStream fin = new FileInputStream(f);
ZipArchiveInputStream zin = null;
try {
zin = new ZipArchiveInputStream(fin);
ZipArchiveEntry zae = zin.getNextZipEntry();
while (zae.isDirectory()) {
zae = zin.getNextZipEntry();
}
assertEquals(expectedName, zae.getName());
byte[] buf = new byte[1024 * 1024];
long read = 0;
Random r = new Random(System.currentTimeMillis());
int readNow;
while ((readNow = zin.read(buf, 0, buf.length)) > 0) {
// testing all bytes for a value of 0 is going to take
// too long, just pick a few ones randomly
for (int i = 0; i < 1024; i++) {
int idx = r.nextInt(readNow);
assertEquals("testing byte " + (read + idx), 0, buf[idx]);
}
read += readNow;
}
assertEquals(FIVE_BILLION, read);
assertNull(zin.getNextZipEntry());
assertEquals(FIVE_BILLION, zae.getSize());
} finally {
if (zin != null) {
zin.close();
}
fin.close(); // fin cannot be null here
}
}
private static void read5GBOfZerosUsingZipFileImpl(File f,
String expectedName)
throws IOException {
ZipFile zf = null;
try {
zf = new ZipFile(f);
Enumeration<ZipArchiveEntry> e = zf.getEntries();
assertTrue(e.hasMoreElements());
ZipArchiveEntry zae = e.nextElement();
while (zae.isDirectory()) {
zae = e.nextElement();
}
assertEquals(expectedName, zae.getName());
assertEquals(FIVE_BILLION, zae.getSize());
byte[] buf = new byte[1024 * 1024];
long read = 0;
Random r = new Random(System.currentTimeMillis());
int readNow;
InputStream zin = zf.getInputStream(zae);
try {
while ((readNow = zin.read(buf, 0, buf.length)) > 0) {
// testing all bytes for a value of 0 is going to take
// too long, just pick a few ones randomly
for (int i = 0; i < 1024; i++) {
int idx = r.nextInt(readNow);
assertEquals("testing byte " + (read + idx), 0, buf[idx]);
}
read += readNow;
}
} finally {
zin.close();
}
assertEquals(FIVE_BILLION, read);
assertFalse(e.hasMoreElements());
} finally {
ZipFile.closeQuietly(zf);
}
}
private static void read100KFilesImpl(File f) throws IOException {
FileInputStream fin = new FileInputStream(f);
ZipArchiveInputStream zin = null;
try {
zin = new ZipArchiveInputStream(fin);
int files = 0;
ZipArchiveEntry zae = null;
while ((zae = zin.getNextZipEntry()) != null) {
if (!zae.isDirectory()) {
files++;
assertEquals(0, zae.getSize());
}
}
assertEquals(ONE_HUNDRED_THOUSAND, files);
} finally {
if (zin != null) {
zin.close();
}
fin.close();
}
}
private static void read100KFilesUsingZipFileImpl(File f)
throws IOException {
ZipFile zf = null;
try {
zf = new ZipFile(f);
int files = 0;
for (Enumeration<ZipArchiveEntry> e = zf.getEntries(); e.hasMoreElements(); ) {
ZipArchiveEntry zae = e.nextElement();
if (!zae.isDirectory()) {
files++;
assertEquals(0, zae.getSize());
}
}
assertEquals(ONE_HUNDRED_THOUSAND, files);
} finally {
ZipFile.closeQuietly(zf);
}
}
private static long getLengthAndPositionAtCentralDirectory(RandomAccessFile a)
throws IOException {
final long end = a.length();
a.seek(end - 22 - 20);
byte[] sig = new byte[4];
a.readFully(sig);
if (sig[0] != (byte) 0x50 || sig[1] != (byte) 0x4b
|| sig[2] != 6 || sig[3] != 7) {
// not a ZIP64 archive
return getLengthAndPositionAtCentralDirectory32(a, end);
}
long cdOffsetLoc = end - 22 - 20 - 56 + 48;
// seek to central directory locator
a.seek(cdOffsetLoc);
byte[] cdOffset = new byte[8];
a.readFully(cdOffset);
a.seek(ZipEightByteInteger.getLongValue(cdOffset));
return end;
}
private static long getLengthAndPositionAtCentralDirectory32(RandomAccessFile a, final long end)
throws IOException {
a.seek(end - 22 + 16);
byte[] cdOffset = new byte[4];
a.readFully(cdOffset);
a.seek(ZipLong.getValue(cdOffset));
return end;
}
private static void write100KFilesToStream(ZipArchiveOutputStream zos)
throws IOException {
for (int i = 0; i < ONE_HUNDRED_THOUSAND; i++) {
ZipArchiveEntry zae = new ZipArchiveEntry(String.valueOf(i));
zae.setSize(0);
zos.putArchiveEntry(zae);
zos.closeArchiveEntry();
}
zos.close();
}
private static void
write3EntriesCreatingBigArchiveToStream(ZipArchiveOutputStream zos)
throws IOException {
byte[] buf = new byte[ONE_MILLION];
ZipArchiveEntry zae = null;
for (int i = 0; i < 2; i++) {
zae = new ZipArchiveEntry(String.valueOf(i));
zae.setSize(FIVE_BILLION / 2);
zae.setMethod(ZipEntry.STORED);
zae.setCrc(0x8a408f16L);
zos.putArchiveEntry(zae);
for (int j = 0; j < FIVE_BILLION / 2 / 1000 / 1000;
j++) {
zos.write(buf);
}
zos.closeArchiveEntry();
}
zae = new ZipArchiveEntry(String.valueOf(2));
zae.setSize(1);
zae.setMethod(ZipEntry.STORED);
zae.setCrc(0x9b9265bL);
zos.putArchiveEntry(zae);
zos.write(new byte[] { 42 });
zos.closeArchiveEntry();
zos.close();
}
}