1 files changed, 157 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/javax/net/ssl/provider/Signature.java b/libjava/classpath/gnu/javax/net/ssl/provider/Signature.java
new file mode 100644
index 000000000..160dd805f
--- /dev/null
+++ b/libjava/classpath/gnu/javax/net/ssl/provider/Signature.java
@@ -0,0 +1,157 @@
+/* Signature.java -- SSL Signature structure.
+   Copyright (C) 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.net.ssl.provider;
+
+import java.io.PrintWriter;
+import java.io.StringWriter;
+
+import java.nio.ByteBuffer;
+
+/**
+ * The signature structure.
+ *
+ * <pre>
+select (SignatureAlgorithm)
+{
+case anonymous:
+  struct { };
+case rsa:
+  digitally-signed struct
+  {
+    opaque md5_hash[16];
+    opaque sha_hash[20];
+  };
+case dsa:
+  digitally-signed struct
+  {
+    opaque sha_hash[20];
+  };
+} Signature;</pre>
+ */
+public class Signature implements Builder, Constructed
+{
+
+  // Fields.
+  // -------------------------------------------------------------------------
+
+  private final ByteBuffer buffer;
+  private final SignatureAlgorithm alg;
+
+  // Constructor.
+  // -------------------------------------------------------------------------
+
+  public Signature (final ByteBuffer buffer, final SignatureAlgorithm alg)
+  {
+    this.buffer = buffer;
+    this.alg = alg;
+  }
+
+  public Signature (final byte[] sigValue, final SignatureAlgorithm alg)
+  {
+    buffer = ByteBuffer.allocate(sigValue.length + 2);
+    buffer.putShort((short) sigValue.length);
+    buffer.put(sigValue);
+    buffer.position(0);
+    this.alg = alg;
+  }
+
+  // Instance methods.
+  // -------------------------------------------------------------------------
+
+  public int length ()
+  {
+    if (alg.equals (SignatureAlgorithm.ANONYMOUS))
+      return 0;
+    return (buffer.getShort (0) & 0xFFFF) + 2;
+  }
+
+  public ByteBuffer buffer()
+  {
+    return (ByteBuffer) buffer.duplicate().limit(length());
+  }
+
+  public byte[] signature ()
+  {
+    if (alg.equals (SignatureAlgorithm.ANONYMOUS))
+      return new byte[0];
+    int length = buffer.getShort (0) & 0xFFFF;
+    byte[] buf = new byte[length];
+    ((ByteBuffer) buffer.duplicate().position(2)).get(buf);
+    return buf;
+  }
+
+  public void setSignature (final byte[] signature)
+  {
+    setSignature (signature, 0, signature.length);
+  }
+
+  public void setSignature (final byte[] signature, final int offset, final int length)
+  {
+    if (alg.equals (SignatureAlgorithm.ANONYMOUS))
+      return;
+    buffer.putShort (0, (short) length);
+    buffer.position (2);
+    buffer.put (signature, offset, length);
+  }
+
+  public String toString ()
+  {
+    return toString (null);
+  }
+
+  public String toString (final String prefix)
+  {
+    StringWriter str = new StringWriter();
+    PrintWriter out = new PrintWriter(str);
+    if (prefix != null)
+      out.print (prefix);
+    out.println("struct {");
+    if (!alg.equals (SignatureAlgorithm.ANONYMOUS))
+      {
+        String subprefix = "  ";
+        if (prefix != null)
+          subprefix = prefix + subprefix;
+        out.print (Util.hexDump (signature (), subprefix));
+      }
+    if (prefix != null)
+      out.print (prefix);
+    out.print ("} Signature;");
+    return str.toString();
+  }
+}