27 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 deep recursion.6// To generate a crashy input:7// for((i=0;i<110;i++)); do echo -n ABCDEFGHIJ >> INPUT; done8#include <cstddef>9#include <cstdint>10#include <cstdlib>11 12static volatile int Sink;13 14void Recursive(const uint8_t *Data, size_t Size, int Depth) {15 if (Depth > 1000) abort();16 if (!Size) return;17 if (*Data == ('A' + Depth % 10))18 Recursive(Data + 1, Size - 1, Depth + 1);19 Sink++;20}21 22extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {23 Recursive(Data, Size, 0);24 return 0;25}26 27