undefect. CWE-407 — 63 sites patched across 27 ecosystems

Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.

test/jdk/java/io/RandomAccessFile/WriteBytesChars.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/* @test
+   @bug 4074388
+   @summary Check for correct implementation of RandomAccessFile.writeBytes
+   and writeChars.
+   */
+
+import java.io.*;
+
+public class WriteBytesChars {
+
+    public static void main(String args[]) throws Exception {
+        String towrite;
+        char[] buf = new char[80];
+        byte[] b = new byte[80];
+        File fn = new File("x.WriteBytesChars");
+
+        RandomAccessFile raf = new RandomAccessFile(fn , "rw");
+        try {
+            for (int i = 0; i < 80; i++) {
+                buf[i] = 'a';
+            }
+            towrite = new String(buf);
+
+            raf.writeBytes(towrite);
+            raf.seek(0);
+            raf.read(b);
+
+            System.out.println("RandomAccessFile.writeBytes");
+            if (towrite.equals(new String(b))) {
+                System.err.println("Test succeeded.");
+            } else {
+                throw new
+                    RuntimeException("RandomAccessFile.writeBytes, wrong result");
+            }
+
+            raf.seek(0);
+            raf.writeChars(towrite);
+            raf.seek(0);
+            for (int i = 0; i < 80; i++) {
+                buf[i] = raf.readChar();
+            }
+
+            System.out.println("RandomAccessFile.writeChars");
+            if (towrite.equals(new String(buf))) {
+                System.err.println("Test succeeded.");
+            } else {
+                throw new
+                    RuntimeException("RandomAccessFile.writeChars, wrong result");
+            }
+        } finally {
+            raf.close();
+            fn.delete();
+        }
+    }
+}