1 files changed, 63 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/tar/TarArchiveSparseEntry.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/tar/TarArchiveSparseEntry.java
new file mode 100644
index 00000000..2e76fb69
--- /dev/null
+++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/tar/TarArchiveSparseEntry.java
@@ -0,0 +1,63 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tools.tar;
+
+import java.io.IOException;
+
+/**
+ * This class represents a sparse entry in a Tar archive.
+ *
+ * <p>
+ * The C structure for a sparse entry is:
+ * <pre>
+ * struct posix_header {
+ * struct sparse sp[21]; // TarConstants.SPARSELEN_GNU_SPARSE     - offset 0
+ * char isextended;      // TarConstants.ISEXTENDEDLEN_GNU_SPARSE - offset 504
+ * };
+ * </pre>
+ * Whereas, "struct sparse" is:
+ * <pre>
+ * struct sparse {
+ * char offset[12];   // offset 0
+ * char numbytes[12]; // offset 12
+ * };
+ * </pre>
+ */
+
+public class TarArchiveSparseEntry implements TarConstants {
+    /** If an extension sparse header follows. */
+    private boolean isExtended;
+
+    /**
+     * Construct an entry from an archive's header bytes. File is set
+     * to null.
+     *
+     * @param headerBuf The header bytes from a tar archive entry.
+     * @throws IOException on unknown format
+     */
+    public TarArchiveSparseEntry(byte[] headerBuf) throws IOException {
+        int offset = 0;
+        offset += SPARSELEN_GNU_SPARSE;
+        isExtended = TarUtils.parseBoolean(headerBuf, offset);
+    }
+
+    public boolean isExtended() {
+        return isExtended;
+    }
+}