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 // Tests how the fuzzer rejects inputs if the target returns -1. 6 #include <cstddef> 7 #include <cstdint> 8 9 static volatile int Sink; 10 LLVMFuzzerTestOneInput(const uint8_t * Data,size_t Size)11extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { 12 if (Size != 3) 13 return -1; // Reject anyting that's not 3 bytes long. 14 // Reject 'rej'. 15 if (Data[0] == 'r' && Data[1] == 'e' && Data[2] == 'j') 16 return -1; 17 // Accept 'acc'. 18 if (Data[0] == 'a' && Data[1] == 'c' && Data[2] == 'c') { 19 Sink = 1; 20 return 0; 21 } 22 return 0; 23 } 24