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#include <stddef.h>
5#include <stdint.h>
6#include <stdio.h>
7
8// Test for libFuzzer's "equivalence" fuzzing, part B.
9extern "C" void LLVMFuzzerAnnounceOutput(const uint8_t *Data, size_t Size);
10extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
11 // fprintf(stderr, "B %zd\n", Size);
12 uint8_t Result[50];
13 if (Size > 50) Size = 50;
14 for (size_t i = 0; i < Size; i++)
15 Result[Size - i - 1] = Data[i];
16
17 // Be a bit different from EquivalenceATest
18 if (Size > 10 && Data[5] == 'B' && Data[6] == 'C' && Data[7] == 'D') {
19 static int c;
20 if (!c)
21 fprintf(stderr, "ZZZZZZZ\n");
22 c = 1;
23 Result[2]++;
24 }
25
26 LLVMFuzzerAnnounceOutput(Result, Size);
27 return 0;
28}
29