Imported gcc-4.4.3

[msp430-gcc.git] / libjava / java / util / zip / GZIPInputStream.java

diff --git a/libjava/java/util/zip/GZIPInputStream.java b/libjava/java/util/zip/GZIPInputStream.java
deleted file mode 100644 (file)
index 07e4959..0000000
--- a/libjava/java/util/zip/GZIPInputStream.java
+++ /dev/null
@@ -1,181 +0,0 @@
-/* GZIPInputStream.java - Input filter for reading gzip file
-   Copyright (C) 1999, 2000 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
- 
-GNU Classpath 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 for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING.  If not, write to the
-Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library.  Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module.  An independent module is a module which is not derived from
-or based on this library.  If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so.  If you do not wish to do so, delete this
-exception statement from your version. */
-
-package java.util.zip;
-
-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 GZIPInputStream extends InflaterInputStream
-{
-  public static final int GZIP_MAGIC = 0x8b1f;
-
-  public void close () throws IOException
-  {
-    // Nothing to do here.
-    super.close();
-  }
-
-  public GZIPInputStream (InputStream istream) throws IOException
-  {
-    this (istream, 512);
-  }
-
-  private final int eof_read () throws IOException
-  {
-    int r = in.read();
-    if (r == -1)
-      throw new ZipException ("gzip header corrupted");
-    return r & 0xff;
-  }
-
-  public GZIPInputStream (InputStream istream, int readsize)
-    throws IOException
-  {
-    super (istream, new Inflater (true), readsize);
-
-    // NOTE: header reading code taken from zlib's gzio.c.
-
-    // Read the magic number.
-    int magic = eof_read () | (eof_read () << 8);
-    if (magic != GZIP_MAGIC)
-      throw new ZipException ("gzip header corrupted");
-
-    int method = eof_read ();
-    int flags = eof_read ();
-    // Test from zlib.
-    if (method != Z_DEFLATED || (flags & RESERVED) != 0)
-      throw new ZipException ("gzip header corrupted");
-
-    // Discard time, xflags, OS code.
-    for (int i = 0; i < 6; ++i)
-      eof_read ();
-
-    // Skip the extra field.
-    if ((flags & EXTRA_FIELD) != 0)
-      {
-       int len = eof_read () | (eof_read () << 8);
-       while (len-- != 0)
-         eof_read ();
-      }
-
-    if ((flags & ORIG_NAME) != 0)
-      {
-       while (true)
-         {
-           int c = eof_read ();
-           if (c == 0)
-             break;
-         }
-      }
-
-    if ((flags & COMMENT) != 0)
-      {
-       while (true)
-         {
-           int c = eof_read ();
-           if (c == 0)
-             break;
-         }
-      }
-
-    if ((flags & HEAD_CRC) != 0)
-      {
-       // FIXME: consider checking CRC of the header.
-       eof_read ();
-       eof_read ();
-      }
-
-    crc = new CRC32 ();
-  }
-
-  public int read (byte[] buf, int off, int len) throws IOException
-  {
-    if (eos)
-      return -1;
-    int r = super.read(buf, off, len);
-    if (r == -1)
-      {
-       eos = true;
-       int header_crc = read4 ();
-       if (crc.getValue() != header_crc)
-         throw new ZipException ("corrupted gzip file");
-       // Read final `ISIZE' field.
-       // FIXME: should we check this length?
-       read4 ();
-       return -1;
-      }
-    crc.update(buf, off, r);
-    return r;
-  }
-
-  private final int read4 () throws IOException
-  {
-    int byte0 = in.read();
-    int byte1 = in.read();
-    int byte2 = in.read();
-    int byte3 = in.read();
-    if (byte3 < 0)
-      throw new ZipException (".zip archive ended prematurely");
-    return ((byte3 & 0xFF) << 24) + ((byte2 & 0xFF) << 16)
-      + ((byte1 & 0xFF) << 8) + (byte0 & 0xFF);
-  }
-
-  // Checksum used by this input stream.
-  protected CRC32 crc;
-
-  // Indicates whether end-of-stream has been reached.
-  protected boolean eos;
-
-  // Some constants from zlib.
-  static final int Z_DEFLATED = 8;
-  static final int HEAD_CRC    = 0x02;
-  static final int EXTRA_FIELD = 0x04;
-  static final int ORIG_NAME   = 0x08;
-  static final int COMMENT     = 0x10;
-  static final int RESERVED    = 0xe0;
-}