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 string "Hi!".
6 #include <cstddef>
7 #include <cstdint>
8 #include <cstdlib>
9 #include <cstdio>
10 
11 static volatile int Sink;
12 static volatile int *Null = 0;
13 
LLVMFuzzerTestOneInput(const uint8_t * Data,size_t Size)14 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
15   if (Size > 0 && Data[0] == 'H') {
16     Sink = 1;
17     if (Size > 1 && Data[1] == 'i') {
18       Sink = 2;
19       if (Size > 2 && Data[2] == '!') {
20         printf("Found the target, dereferencing NULL\n");
21         *Null = 1;
22       }
23     }
24   }
25   return 0;
26 }
27 
28