41 lines · cpp
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-exception4 5// Simple test for a fuzzer. The fuzzer must find the string "Hi!".6#include <cstddef>7#include <cstdint>8#include <cstdlib>9#include <iostream>10 11extern "C" {12__attribute__((noinline))13void FunctionC(const uint8_t *Data, size_t Size) {14 if (Size > 3 && Data[3] == 'Z') {15 static bool PrintedOnce = false;16 if (!PrintedOnce) {17 std::cout << "BINGO\n";18 PrintedOnce = true;19 }20 }21}22 23__attribute__((noinline))24void FunctionB(const uint8_t *Data, size_t Size) {25 if (Size > 2 && Data[2] == 'Z')26 FunctionC(Data, Size);27}28__attribute__((noinline))29void FunctionA(const uint8_t *Data, size_t Size) {30 if (Size > 1 && Data[1] == 'U')31 FunctionB(Data, Size);32}33}34 35extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {36 if (Size > 0 && Data[0] == 'F')37 FunctionA(Data, Size);38 return 0;39}40 41