1// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
2// See https://llvm.org/LICENSE.txt for license information.
3// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
4
5// Simple test for a fuzzer. The fuzzer must find the empty string.
6#include <cstddef>
7#include <cstdint>
8#include <cstdlib>
9#include <iostream>
10
11static volatile int *Null = 0;
12
13extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
14 if (Size == 0) {
15 std::cout << "Found the target, dereferencing NULL\n";
16 *Null = 1;
17 }
18 return 0;
19}
20
21

source code of compiler-rt/test/fuzzer/NullDerefOnEmptyTest.cpp