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 <assert.h>
7 #include <cstddef>
8 #include <cstdint>
9 #include <cstdlib>
10 #include <iostream>
11 #include <ostream>
12 
13 static volatile bool SeedLargeBuffer;
14 
LLVMFuzzerTestOneInput(const uint8_t * Data,size_t Size)15 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
16   assert(Data);
17   if (Size >= 4)
18     SeedLargeBuffer = true;
19   if (Size == 3 && SeedLargeBuffer && Data[3]) {
20     std::cout << "Woops, reading Data[3] w/o crashing\n" << std::flush;
21     exit(1);
22   }
23   return 0;
24 }
25 
26