gcc/libjava/java/util/zip/CheckedInputStream.java

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ZipOutputStream.java (level): Initial value is Deflater.DEFAULT_COMPRESSION. * java/util/zip/ZipOutputStream.java (level): Initial value is Deflater.DEFAULT_COMPRESSION. (close): New method. (closeEntry): Likewise. (finish): Likewise. (put_version): Likewise. (write_entry): Likewise. (put2, put4): Now return `int'. (comment): Default to empty string. (bytes_written): New instance variable. (chain): Likewise. * java/util/zip/ZipEntry.java (setComment): Limit length of comment string. (setCrc): Check CRC validity. (setExtra): Check argument validity. (setMethod): Likewise. (setSize): Likewise. (ZipEntry): Likewise. * include/javaprims.h: Updated namespace declarations. * Makefile.in: Rebuilt. * Makefile.am (ordinary_java_source_files): Mention new files. (nat_source_files): Likewise. * java/util/zip/ZipFile.java (readu2): Throw ZipException, not EOFException. (read4): Likewise. (getInputStream): Handle compressed entries. * java/util/zip/GZIPOutputStream.java: New file. * java/util/zip/GZIPInputStream.java: New file. * java/util/zip/DataFormatException.java: New file. * java/util/zip/CheckedInputStream.java: New file. * java/util/zip/CheckedOutputStream.java: New file. * java/util/zip/InflaterInputStream.java: Implemented. * java/util/zip/natInflater.cc: New file. * java/util/zip/Deflater.java: Implemented. * java/util/zip/natDeflater.cc: New file. * java/util/zip/DeflaterOutputStream.java: Implemented. * java/util/zip/ZipInputStream.java (closeZipEntry): Throw ZipException, not IOException. * java/util/zip/ZipFile.java (readDirectory): Throw ZipException, not IOException. From-SVN: r26996
1999-05-18 23:33:03 +08:00
// CheckedInputStream.java - Compute checksum of data being read.
/* Copyright (C) 1999 Free Software Foundation
ZipOutputStream.java (level): Initial value is Deflater.DEFAULT_COMPRESSION. * java/util/zip/ZipOutputStream.java (level): Initial value is Deflater.DEFAULT_COMPRESSION. (close): New method. (closeEntry): Likewise. (finish): Likewise. (put_version): Likewise. (write_entry): Likewise. (put2, put4): Now return `int'. (comment): Default to empty string. (bytes_written): New instance variable. (chain): Likewise. * java/util/zip/ZipEntry.java (setComment): Limit length of comment string. (setCrc): Check CRC validity. (setExtra): Check argument validity. (setMethod): Likewise. (setSize): Likewise. (ZipEntry): Likewise. * include/javaprims.h: Updated namespace declarations. * Makefile.in: Rebuilt. * Makefile.am (ordinary_java_source_files): Mention new files. (nat_source_files): Likewise. * java/util/zip/ZipFile.java (readu2): Throw ZipException, not EOFException. (read4): Likewise. (getInputStream): Handle compressed entries. * java/util/zip/GZIPOutputStream.java: New file. * java/util/zip/GZIPInputStream.java: New file. * java/util/zip/DataFormatException.java: New file. * java/util/zip/CheckedInputStream.java: New file. * java/util/zip/CheckedOutputStream.java: New file. * java/util/zip/InflaterInputStream.java: Implemented. * java/util/zip/natInflater.cc: New file. * java/util/zip/Deflater.java: Implemented. * java/util/zip/natDeflater.cc: New file. * java/util/zip/DeflaterOutputStream.java: Implemented. * java/util/zip/ZipInputStream.java (closeZipEntry): Throw ZipException, not IOException. * java/util/zip/ZipFile.java (readDirectory): Throw ZipException, not IOException. From-SVN: r26996
1999-05-18 23:33:03 +08:00
This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
package java.util.zip;
import java.io.FilterInputStream;
import java.io.InputStream;
import java.io.IOException;
/**
* @author Tom Tromey
* @date May 17, 1999
*/
/* Written using on-line Java Platform 1.2 API Specification
* and JCL book.
* Believed complete and correct.
*/
public class CheckedInputStream extends FilterInputStream
{
public CheckedInputStream (InputStream in, Checksum sum)
{
super (in);
this.sum = sum;
}
public Checksum getChecksum ()
{
return sum;
}
public int read () throws IOException
{
int x = in.read();
if (x != -1)
sum.update(x);
return x;
}
public int read (byte[] buf, int off, int len) throws IOException
{
int r = in.read(buf, off, len);
if (r != -1)
sum.update(buf, off, r);
return r;
}
public long skip (long n) throws IOException
{
if (n == 0)
return 0;
int min = (int) Math.min(n, 1024);
byte[] buf = new byte[min];
long s = 0;
while (n > 0)
{
int r = in.read(buf, 0, min);
if (r == -1)
break;
n -= r;
s += r;
min = (int) Math.min(n, 1024);
ZipOutputStream.java (level): Initial value is Deflater.DEFAULT_COMPRESSION. * java/util/zip/ZipOutputStream.java (level): Initial value is Deflater.DEFAULT_COMPRESSION. (close): New method. (closeEntry): Likewise. (finish): Likewise. (put_version): Likewise. (write_entry): Likewise. (put2, put4): Now return `int'. (comment): Default to empty string. (bytes_written): New instance variable. (chain): Likewise. * java/util/zip/ZipEntry.java (setComment): Limit length of comment string. (setCrc): Check CRC validity. (setExtra): Check argument validity. (setMethod): Likewise. (setSize): Likewise. (ZipEntry): Likewise. * include/javaprims.h: Updated namespace declarations. * Makefile.in: Rebuilt. * Makefile.am (ordinary_java_source_files): Mention new files. (nat_source_files): Likewise. * java/util/zip/ZipFile.java (readu2): Throw ZipException, not EOFException. (read4): Likewise. (getInputStream): Handle compressed entries. * java/util/zip/GZIPOutputStream.java: New file. * java/util/zip/GZIPInputStream.java: New file. * java/util/zip/DataFormatException.java: New file. * java/util/zip/CheckedInputStream.java: New file. * java/util/zip/CheckedOutputStream.java: New file. * java/util/zip/InflaterInputStream.java: Implemented. * java/util/zip/natInflater.cc: New file. * java/util/zip/Deflater.java: Implemented. * java/util/zip/natDeflater.cc: New file. * java/util/zip/DeflaterOutputStream.java: Implemented. * java/util/zip/ZipInputStream.java (closeZipEntry): Throw ZipException, not IOException. * java/util/zip/ZipFile.java (readDirectory): Throw ZipException, not IOException. From-SVN: r26996
1999-05-18 23:33:03 +08:00
sum.update(buf, 0, r);
}
return s;
}
// The checksum object.
private Checksum sum;
}