1 files changed, 54 insertions, 0 deletions
diff --git a/libjava/java/util/zip/CheckedOutputStream.java b/libjava/java/util/zip/CheckedOutputStream.java
new file mode 100644
index 00000000000..30dbc734f8a
--- /dev/null
+++ b/libjava/java/util/zip/CheckedOutputStream.java
@@ -0,0 +1,54 @@
+// CheckedOutputStream.java - Compute checksum of data being written.
+
+/* Copyright (C) 1999  Cygnus Solutions
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+package java.util.zip;
+
+import java.io.FilterOutputStream;
+import java.io.OutputStream;
+import java.io.IOException;
+
+/**
+ * @author Tom Tromey
+ * @date May 17, 1999
+ */
+
+/* Written using on-line Java Platform 1.2 API Specification
+ * and JCL book.
+ * Believed complete and correct.
+ */
+
+public class CheckedOutputStream extends FilterOutputStream
+{
+  public CheckedOutputStream (OutputStream out, Checksum cksum)
+  {
+    super (out);
+    this.sum = cksum;
+  }
+
+  public Checksum getChecksum ()
+  {
+    return sum;
+  }
+
+  public void write (int bval) throws IOException
+  {
+    out.write(bval);
+    sum.update(bval);
+  }
+
+  public void write (byte[] buf, int off, int len) throws IOException
+  {
+    out.write(buf, off, len);
+    sum.update(buf, off, len);
+  }
+
+  // The checksum object.
+  private Checksum sum;
+}