/**
* The actual data to put into local file data - without Header-ID
* or length specifier.
* @return get the data
*/
public byte[] getLocalFileDataData()
{
// CRC will be added later
byte[] data = new byte[getLocalFileDataLength().getValue() - WORD];
java.lang.SystemJ.arraycopy(ZipShort.getBytes(getMode()), 0, data, 0, 2);
byte[] linkArray = getLinkedFile().getBytes(); // Uses default charset - see class Javadoc
// CheckStyle:MagicNumber OFF
java.lang.SystemJ.arraycopy(ZipLong.getBytes(linkArray.Length),
0, data, 2, WORD);
java.lang.SystemJ.arraycopy(ZipShort.getBytes(getUserId()),
0, data, 6, 2);
java.lang.SystemJ.arraycopy(ZipShort.getBytes(getGroupId()),
0, data, 8, 2);
java.lang.SystemJ.arraycopy(linkArray, 0, data, 10, linkArray.Length);
// CheckStyle:MagicNumber ON
crc.reset();
crc.update(data);
long checksum = crc.getValue();
byte[] result = new byte[data.Length + WORD];
java.lang.SystemJ.arraycopy(ZipLong.getBytes(checksum), 0, result, 0, WORD);
java.lang.SystemJ.arraycopy(data, 0, result, WORD, data.Length);
return(result);
}
String getUnicodeStringIfOriginalMatches(AbstractUnicodeExtraField f,
byte[] orig)
{
if (f != null)
{
java.util.zip.CRC32 crc32 = new java.util.zip.CRC32();
crc32.update(orig);
long origCRC32 = crc32.getValue();
if (origCRC32 == f.getNameCRC32())
{
try {
return(ZipEncodingHelper
.UTF8_ZIP_ENCODING.decode(f.getUnicodeName()));
} catch (java.io.IOException) {
// UTF-8 unsupported? should be impossible the
// Unicode*ExtraField must contain some bad bytes
// TODO log this anywhere?
return(default(String));
}
}
}
return(default(String));
}
static void Main()
{
java.util.zip.CRC32 crc = new java.util.zip.CRC32();
java.util.zip.Adler32 a32 = new java.util.zip.Adler32();
java.lang.SystemJ.outJ.println(crc.getValue() + "\t" + a32.getValue());
crc.update("Bastie".getBytes());
a32.update("Bastie".getBytes());
java.lang.SystemJ.outJ.println(crc.getValue() + "\t" + a32.getValue());
crc = new java.util.zip.CRC32();
a32 = new java.util.zip.Adler32();
java.lang.SystemJ.outJ.println(crc.getValue() + "\t" + a32.getValue());
crc.update("Bas".getBytes());
a32.update("Bas".getBytes());
java.lang.SystemJ.outJ.println(crc.getValue() + "\t" + a32.getValue());
crc.update("tie".getBytes());
a32.update("tie".getBytes());
java.lang.SystemJ.outJ.println(crc.getValue() + "\t" + a32.getValue());
}
static void Main()
{
java.util.zip.CRC32 crc = new java.util.zip.CRC32();
java.util.zip.Adler32 a32 = new java.util.zip.Adler32();
java.lang.SystemJ.outJ.println(crc.getValue()+"\t"+a32.getValue());
crc.update("Bastie".getBytes());
a32.update("Bastie".getBytes());
java.lang.SystemJ.outJ.println(crc.getValue()+"\t"+a32.getValue());
crc = new java.util.zip.CRC32();
a32 = new java.util.zip.Adler32();
java.lang.SystemJ.outJ.println(crc.getValue()+"\t"+a32.getValue());
crc.update("Bas".getBytes());
a32.update("Bas".getBytes());
java.lang.SystemJ.outJ.println(crc.getValue()+"\t"+a32.getValue());
crc.update("tie".getBytes());
a32.update("tie".getBytes());
java.lang.SystemJ.outJ.println(crc.getValue()+"\t"+a32.getValue());
}
protected void init(String text, byte[] bytes, int off, int len)
{
java.util.zip.CRC32 crc32 = new java.util.zip.CRC32();
crc32.update(bytes, off, len);
nameCRC32 = crc32.getValue();
try
{
unicodeName = text.getBytes("UTF-8");
}
catch (java.io.UnsupportedEncodingException e)
{
throw new java.lang.RuntimeException("FATAL: UTF-8 encoding not supported.", e);
}
}
/**
* Writes bytes to ZIP entry.
* @param b the byte array to write
* @param offset the start position to write from
* @param length the number of bytes to write
* @throws IOException on error
*/
public override void write(byte[] b, int offset, int length) //throws IOException
{
ZipUtil.checkRequestedFeatures(entry);
if (entry.getMethod() == DEFLATED)
{
if (length > 0)
{
if (!def.finished())
{
if (length <= DEFLATER_BLOCK_SIZE)
{
def.setInput(b, offset, length);
deflateUntilInputIsNeeded();
}
else
{
int fullblocks = length / DEFLATER_BLOCK_SIZE;
for (int i = 0; i < fullblocks; i++)
{
def.setInput(b, offset + i * DEFLATER_BLOCK_SIZE,
DEFLATER_BLOCK_SIZE);
deflateUntilInputIsNeeded();
}
int done = fullblocks * DEFLATER_BLOCK_SIZE;
if (done < length)
{
def.setInput(b, offset + done, length - done);
deflateUntilInputIsNeeded();
}
}
}
}
}
else
{
writeOut(b, offset, length);
written += length;
}
crc.update(b, offset, length);
count(length);
}
public override int read(byte[] buffer, int start, int length) //throws IOException
{
if (closed)
{
throw new java.io.IOException("The stream is closed");
}
if (inf.finished() || current == null)
{
return(-1);
}
// avoid int overflow, check null buffer
if (start <= buffer.Length && length >= 0 && start >= 0 &&
buffer.Length - start >= length)
{
ZipUtil.checkRequestedFeatures(current);
if (!supportsDataDescriptorFor(current))
{
throw new UnsupportedZipFeatureException(Feature.DATA_DESCRIPTOR, current);
}
if (current.getMethod() == ZipArchiveOutputStream.STORED)
{
if (hasDataDescriptor)
{
if (lastStoredEntry == null)
{
readStoredEntry();
}
return(lastStoredEntry.read(buffer, start, length));
}
int csize = (int)current.getSize();
if (readBytesOfEntry >= csize)
{
return(-1);
}
if (offsetInBuffer >= lengthOfLastRead)
{
offsetInBuffer = 0;
if ((lengthOfLastRead = inJ.read(buf)) == -1)
{
return(-1);
}
count(lengthOfLastRead);
bytesReadFromStream += lengthOfLastRead;
}
int toRead = length > lengthOfLastRead
? lengthOfLastRead - offsetInBuffer
: length;
if ((csize - readBytesOfEntry) < toRead)
{
toRead = csize - readBytesOfEntry;
}
java.lang.SystemJ.arraycopy(buf, offsetInBuffer, buffer, start, toRead);
offsetInBuffer += toRead;
readBytesOfEntry += toRead;
crc.update(buffer, start, toRead);
return(toRead);
}
if (inf.needsInput())
{
fill();
if (lengthOfLastRead > 0)
{
bytesReadFromStream += lengthOfLastRead;
}
}
int read = 0;
try {
read = inf.inflate(buffer, start, length);
} catch (java.util.zip.DataFormatException e) {
throw new java.util.zip.ZipException(e.getMessage());
}
if (read == 0)
{
if (inf.finished())
{
return(-1);
}
else if (lengthOfLastRead == -1)
{
throw new java.io.IOException("Truncated ZIP file");
}
}
crc.update(buffer, start, read);
return(read);
}
throw new java.lang.ArrayIndexOutOfBoundsException();
}
