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
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 123 insertions, 0 deletions

diff --git a/libjava/classpath/gnu/javax/crypto/assembly/CascadeTransformer.java b/libjava/classpath/gnu/javax/crypto/assembly/CascadeTransformer.java
new file mode 100644
index 000000000..8e3a9a5a1
--- /dev/null
+++ b/libjava/classpath/gnu/javax/crypto/assembly/CascadeTransformer.java
@@ -0,0 +1,123 @@
+/* CascadeTransformer.java --
+   Copyright (C) 2003, 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.assembly;
+
+import java.security.InvalidKeyException;
+import java.util.Map;
+
+/**
+ * An Adapter to use any {@link Cascade} as a {@link Transformer} in an
+ * {@link Assembly}.
+ */
+class CascadeTransformer
+    extends Transformer
+{
+  private Cascade delegate;
+
+  private int blockSize;
+
+  CascadeTransformer(Cascade delegate)
+  {
+    super();
+
+    this.delegate = delegate;
+  }
+
+  void initDelegate(Map attributes) throws TransformerException
+  {
+    attributes.put(Cascade.DIRECTION, wired);
+    try
+      {
+        delegate.init(attributes);
+      }
+    catch (InvalidKeyException x)
+      {
+        throw new TransformerException("initDelegate()", x);
+      }
+    blockSize = delegate.currentBlockSize();
+  }
+
+  int delegateBlockSize()
+  {
+    return blockSize;
+  }
+
+  void resetDelegate()
+  {
+    delegate.reset();
+    blockSize = 0;
+  }
+
+  byte[] updateDelegate(byte[] in, int offset, int length)
+      throws TransformerException
+  {
+    byte[] result = updateInternal(in, offset, length);
+    return result;
+  }
+
+  byte[] lastUpdateDelegate() throws TransformerException
+  {
+    if (inBuffer.size() != 0)
+      {
+        IllegalStateException cause = new IllegalStateException(
+            "Cascade transformer, after last update, must be empty but isn't");
+        throw new TransformerException("lastUpdateDelegate()", cause);
+      }
+    return new byte[0];
+  }
+
+  private byte[] updateInternal(byte[] in, int offset, int length)
+  {
+    byte[] result;
+    for (int i = 0; i < length; i++)
+      {
+        inBuffer.write(in[offset++] & 0xFF);
+        if (inBuffer.size() >= blockSize)
+          {
+            result = inBuffer.toByteArray();
+            inBuffer.reset();
+            delegate.update(result, 0, result, 0);
+            outBuffer.write(result, 0, blockSize);
+          }
+      }
+    result = outBuffer.toByteArray();
+    outBuffer.reset();
+    return result;
+  }
+}