obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
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1 files changed, 183 insertions, 0 deletions

diff --git a/libjava/classpath/gnu/javax/crypto/jce/cipher/ARCFourSpi.java b/libjava/classpath/gnu/javax/crypto/jce/cipher/ARCFourSpi.java
new file mode 100644
index 000000000..2e1422e6b
--- /dev/null
+++ b/libjava/classpath/gnu/javax/crypto/jce/cipher/ARCFourSpi.java
@@ -0,0 +1,183 @@
+/* ARCFourSpi.java --
+   Copyright (C) 2002, 2006  Free Software Foundation, Inc.
+
+This file is a 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 of the License, 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; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, 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.javax.crypto.jce.cipher;
+
+import gnu.java.security.Registry;
+import gnu.javax.crypto.prng.ARCFour;
+import gnu.java.security.prng.IRandom;
+import gnu.java.security.prng.LimitReachedException;
+import gnu.javax.crypto.prng.PRNGFactory;
+
+import java.security.AlgorithmParameters;
+import java.security.InvalidAlgorithmParameterException;
+import java.security.InvalidKeyException;
+import java.security.Key;
+import java.security.NoSuchAlgorithmException;
+import java.security.SecureRandom;
+import java.security.spec.AlgorithmParameterSpec;
+
+import java.util.HashMap;
+
+import javax.crypto.BadPaddingException;
+import javax.crypto.Cipher;
+import javax.crypto.CipherSpi;
+import javax.crypto.IllegalBlockSizeException;
+import javax.crypto.NoSuchPaddingException;
+import javax.crypto.ShortBufferException;
+
+/**
+ * The <i>Service Provider Interface</i> (<b>SPI</b>) for the ARCFOUR stream
+ * cipher.
+ */
+public class ARCFourSpi
+    extends CipherSpi
+{
+  private IRandom keystream;
+
+  public ARCFourSpi()
+  {
+    super();
+    keystream = PRNGFactory.getInstance(Registry.ARCFOUR_PRNG);
+  }
+
+  protected int engineGetBlockSize()
+  {
+    return 0; // stream cipher.
+  }
+
+  protected void engineSetMode(String s) throws NoSuchAlgorithmException
+  {
+    // ignored.
+  }
+
+  protected void engineSetPadding(String s) throws NoSuchPaddingException
+  {
+    // ignored.
+  }
+
+  protected byte[] engineGetIV()
+  {
+    return null;
+  }
+
+  protected int engineGetOutputSize(int in)
+  {
+    return in;
+  }
+
+  protected AlgorithmParameters engineGetParameters()
+  {
+    return null;
+  }
+
+  protected void engineInit(int mode, Key key, SecureRandom r)
+      throws InvalidKeyException
+  {
+    if (mode != Cipher.ENCRYPT_MODE && mode != Cipher.DECRYPT_MODE)
+      throw new IllegalArgumentException(
+          "arcfour is for encryption or decryption only");
+    if (key == null || ! key.getFormat().equalsIgnoreCase("RAW"))
+      throw new InvalidKeyException("key must be non-null raw bytes");
+    HashMap attrib = new HashMap();
+    attrib.put(ARCFour.ARCFOUR_KEY_MATERIAL, key.getEncoded());
+    keystream.init(attrib);
+  }
+
+  protected void engineInit(int mode, Key key, AlgorithmParameterSpec p,
+                            SecureRandom r) throws InvalidKeyException,
+      InvalidAlgorithmParameterException
+  {
+    engineInit(mode, key, r);
+  }
+
+  protected void engineInit(int mode, Key key, AlgorithmParameters p,
+                            SecureRandom r) throws InvalidKeyException,
+      InvalidAlgorithmParameterException
+  {
+    engineInit(mode, key, r);
+  }
+
+  protected byte[] engineUpdate(byte[] in, int offset, int length)
+  {
+    if (length < 0 || offset < 0 || length + offset > in.length)
+      throw new ArrayIndexOutOfBoundsException();
+    byte[] result = new byte[length];
+    try
+      {
+        for (int i = 0; i < length; i++)
+          result[i] = (byte)(in[i + offset] ^ keystream.nextByte());
+      }
+    catch (LimitReachedException wontHappen)
+      {
+      }
+    return result;
+  }
+
+  protected int engineUpdate(byte[] in, int inOffset, int length, byte[] out,
+                             int outOffset) throws ShortBufferException
+  {
+    if (length < 0 || inOffset < 0 || length + inOffset > in.length
+        || outOffset < 0)
+      throw new ArrayIndexOutOfBoundsException();
+    if (outOffset + length > out.length)
+      throw new ShortBufferException();
+    try
+      {
+        for (int i = 0; i < length; i++)
+          out[i + outOffset] = (byte)(in[i + inOffset] ^ keystream.nextByte());
+      }
+    catch (LimitReachedException wontHappen)
+      {
+      }
+    return length;
+  }
+
+  protected byte[] engineDoFinal(byte[] in, int offset, int length)
+      throws IllegalBlockSizeException, BadPaddingException
+  {
+    return engineUpdate(in, offset, length);
+  }
+
+  protected int engineDoFinal(byte[] in, int inOffset, int length, byte[] out,
+                              int outOffset) throws ShortBufferException,
+      IllegalBlockSizeException, BadPaddingException
+  {
+    return engineUpdate(in, inOffset, length, out, outOffset);
+  }
+}