/*

 * Copyright (c) 2015, 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.

 */

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <unistd.h>

#include <jni.h>

#ifdef __cplusplus

extern "C" {

#endif

JNIEXPORT jstring JNICALL Java_SEGVOverflow_nativesegv(JNIEnv *env, jobject obj) {

  char *buffer1;

  char *buffer2;

  char *buffer3;

  char ch;

  jstring ret = NULL;

  // sleep for a bit to let the libadimalloc library initialize

  sleep(5);

  // allocate three buffers

  buffer1 = (char *)malloc(64);

  buffer2 = (char *)malloc(64);

  buffer3 = (char *)malloc(64);

  if ((buffer1 == NULL) || (buffer2 == NULL) || (buffer3 == NULL)) {

    // this return will result in a test failure

    return ret;

  }

  // Read past the end of each buffer multiple times to increase the probability

  // that an ADI version mismatch occurs so an ADI fault is triggered.

  ch = buffer1[70];

  ch = buffer2[70];

  ch = buffer3[70];

  ch = buffer1[140];

  ch = buffer2[140];

  ch = buffer3[140];

  // create a failed test return value because this test should have cored

  buffer1 = "TEST FAILED, a read past the end of a buffer succeeded.";

  ret = (*env)->NewStringUTF(env, buffer1);

  return ret;

}

#ifdef __cplusplus

}

#endif