1*2946cd70SChandler Carruth // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 2*2946cd70SChandler Carruth // See https://llvm.org/LICENSE.txt for license information. 3*2946cd70SChandler Carruth // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 410ab2aceSGeorge Karpenkov 510ab2aceSGeorge Karpenkov // Simple test for a fuzzer. The fuzzer must find the string "FUZZER". 610ab2aceSGeorge Karpenkov #include <cstddef> 710ab2aceSGeorge Karpenkov #include <cstdint> 810ab2aceSGeorge Karpenkov #include <cstdlib> 910ab2aceSGeorge Karpenkov #include <iostream> 1010ab2aceSGeorge Karpenkov LLVMFuzzerTestOneInput(const uint8_t * Data,size_t Size)1110ab2aceSGeorge Karpenkovextern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { 1210ab2aceSGeorge Karpenkov int bits = 0; 1310ab2aceSGeorge Karpenkov if (Size > 0 && Data[0] == 'F') bits |= 1; 1410ab2aceSGeorge Karpenkov if (Size > 1 && Data[1] == 'U') bits |= 2; 1510ab2aceSGeorge Karpenkov if (Size > 2 && Data[2] == 'Z') bits |= 4; 1610ab2aceSGeorge Karpenkov if (Size > 3 && Data[3] == 'Z') bits |= 8; 1710ab2aceSGeorge Karpenkov if (Size > 4 && Data[4] == 'E') bits |= 16; 1810ab2aceSGeorge Karpenkov if (Size > 5 && Data[5] == 'R') bits |= 32; 1910ab2aceSGeorge Karpenkov if (bits == 63) { 2010ab2aceSGeorge Karpenkov std::cerr << "BINGO!\n"; 2110ab2aceSGeorge Karpenkov exit(1); 2210ab2aceSGeorge Karpenkov } 2310ab2aceSGeorge Karpenkov return 0; 2410ab2aceSGeorge Karpenkov } 2510ab2aceSGeorge Karpenkov 26