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diff --git a/gcc-4.4.3/libjava/classpath/gnu/java/net/protocol/ftp/CompressedInputStream.java b/gcc-4.4.3/libjava/classpath/gnu/java/net/protocol/ftp/CompressedInputStream.java
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+/* CompressedInputStream.java --
+ Copyright (C) 2003, 2004 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., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 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 gnu.java.net.protocol.ftp;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.ProtocolException;
+
+/**
+ * A DTP input stream that implements the FTP compressed transfer mode.
+ *
+ * @author Chris Burdess (dog@gnu.org)
+ */
+class CompressedInputStream
+ extends DTPInputStream
+{
+
+ static final int EOF = 64;
+
+ static final int RAW = 0x00;
+ static final int COMPRESSED = 0x80;
+ static final int FILLER = 0xc0;
+
+ int descriptor;
+ int max = -1;
+ int count = -1;
+
+ int state = RAW; // RAW | STATE | FILLER
+ int rep; // the compressed byte
+ int n = 0; // the number of compressed or raw bytes
+
+ CompressedInputStream(DTP dtp, InputStream in)
+ {
+ super(dtp, in);
+ }
+
+ public int read()
+ throws IOException
+ {
+ if (transferComplete)
+ {
+ return -1;
+ }
+ if (count == -1)
+ {
+ readHeader();
+ }
+ if (max < 1)
+ {
+ close();
+ return -1;
+ }
+ if (n > 0 && (state == COMPRESSED || state == FILLER))
+ {
+ n--;
+ return rep;
+ }
+ int c = in.read();
+ if (c == -1)
+ {
+ close();
+ }
+ count++;
+ if (count >= max)
+ {
+ count = -1;
+ if (descriptor == EOF)
+ {
+ close();
+ }
+ }
+ if (c == -1)
+ {
+ return c;
+ }
+ while (n == 0) // read code header
+ {
+ state = (c & 0xc0);
+ n = (c & 0x3f);
+ c = in.read();
+ if (c == -1)
+ {
+ return -1;
+ }
+ }
+ switch (state)
+ {
+ case RAW:
+ break;
+ case COMPRESSED:
+ case FILLER:
+ rep = c;
+ break;
+ default:
+ throw new ProtocolException("Illegal state: " + state);
+ }
+ n--;
+ return c;
+ }
+
+ public int read(byte[] buf)
+ throws IOException
+ {
+ return read(buf, 0, buf.length);
+ }
+
+ public int read(byte[] buf, int off, int len)
+ throws IOException
+ {
+ if (transferComplete)
+ {
+ return -1;
+ }
+ if (count == -1)
+ {
+ readHeader();
+ }
+ if (max < 1)
+ {
+ close();
+ return -1;
+ }
+ // TODO improve performance
+ for (int i = off; i < len; i++)
+ {
+ int c = read();
+ if (c == -1)
+ {
+ close();
+ return i;
+ }
+ buf[i] = (byte) c;
+ }
+ return len;
+ /*
+ int l = in.read (buf, off, len);
+ if (l==-1)
+ {
+ close ();
+ }
+ count += l;
+ if (count>=max)
+ {
+ count = -1;
+ if (descriptor==EOF)
+ {
+ close ();
+ }
+ }
+ return l;
+ */
+ }
+
+ /**
+ * Reads the block header.
+ */
+ void readHeader()
+ throws IOException
+ {
+ descriptor = in.read();
+ int max_hi = in.read();
+ int max_lo = in.read();
+ max = (max_hi << 8) | max_lo;
+ count = 0;
+ }
+
+ /**
+ * Reads the code header.
+ */
+ void readCodeHeader()
+ throws IOException
+ {
+ int code = in.read();
+ state = (code & 0xc0);
+ n = (code & 0x3f);
+ }
+
+}
+