1 files changed, 156 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/java/security/x509/ext/GeneralSubtree.java b/gcc-4.4.3/libjava/classpath/gnu/java/security/x509/ext/GeneralSubtree.java
new file mode 100644
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--- /dev/null
+++ b/gcc-4.4.3/libjava/classpath/gnu/java/security/x509/ext/GeneralSubtree.java
@@ -0,0 +1,156 @@
+/* GeneralSubtree.java -- 
+   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.java.security.x509.ext;
+
+import gnu.java.security.der.DERReader;
+import gnu.java.security.der.DERValue;
+
+import java.io.IOException;
+import java.math.BigInteger;
+
+/**
+ * The GeneralSubtree structure, a part of the {@link NameConstraints}
+ * extension.
+ *
+ * <pre>
+  GeneralSubtree ::= SEQUENCE {
+    base                    GeneralName,
+    minimum         [0]     BaseDistance DEFAULT 0,
+    maximum         [1]     BaseDistance OPTIONAL }
+
+  BaseDistance ::= INTEGER (0..MAX)</pre>
+ *
+ * @author Casey Marshall (csm@gnu.org)
+ */
+public class GeneralSubtree
+{
+  private final GeneralName base;
+  private final int minimum;
+  private final int maximum;
+  
+  public GeneralSubtree(byte[] encoded) throws IOException
+  {
+    DERReader reader = new DERReader(encoded);
+    DERValue generalSubtree = reader.read();
+    
+    if (!generalSubtree.isConstructed())
+      throw new IOException("malformed GeneralSubtree");
+    
+    DERValue generalName = reader.read();
+    base = new GeneralName(generalName.getEncoded());
+    if (generalName.isConstructed())
+      reader.skip(generalName.getLength());
+    
+    int len = generalName.getEncodedLength();
+    if (len < generalSubtree.getLength())
+      {
+        DERValue distance = reader.read();
+        if (distance.getTag() == 0)
+          {
+            minimum = ((BigInteger) distance.getValue()).intValue();
+            len += distance.getEncodedLength();
+            if (len < generalSubtree.getLength())
+              {
+                distance = reader.read();
+                if (distance.getTag() != 1)
+                  throw new IOException("unexpected tag "
+                                        + distance.getTag() +
+                                        " (expected 1 for GeneralSubtree maximum distance)");
+                maximum = ((BigInteger) distance.getValue()).intValue();
+              }
+            else
+              {
+                maximum = -1;
+              }
+          }
+        else if (distance.getTag() == 1)
+          {
+            minimum = 1;
+            maximum = ((BigInteger) distance.getValue()).intValue();
+          }
+        else
+          {
+            throw new IOException("unexpected tag " + distance.getTag()
+                                  + " (expected 0 or 1 for GeneralSubtree distance)");
+          }
+      }
+    else
+      {
+        minimum = 0;
+        maximum = -1;
+      }
+  }
+  
+  /**
+   * Returns the base name.
+   *
+   * @return The base name.
+   */
+  public GeneralName base()
+  {
+    return base;
+  }
+  
+  /**
+   * Returns the minimum base distance, possibly zero.
+   *
+   * @return The minimum base distance.
+   */
+  public int minimum()
+  {
+    return minimum;
+  }
+  
+  /**
+   * Returns the maximum base distance, or -1 if this value was not specified.
+   *
+   * @return The maximum base distance.
+   */
+  public int maximum()
+  {
+    return maximum;
+  }
+  
+  public String toString()
+  {
+    return (GeneralSubtree.class.getName() + " [ base=" + base
+            + "; minimum=" + minimum + "; maximim=" + maximum
+            + " ]");
+  }
+}