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 // Test that we can find the minimal item in the corpus (3 bytes: "FUZ"). 610ab2aceSGeorge Karpenkov #include <cstddef> 710ab2aceSGeorge Karpenkov #include <cstdint> 810ab2aceSGeorge Karpenkov #include <cstdio> 910ab2aceSGeorge Karpenkov #include <cstdlib> 1010ab2aceSGeorge Karpenkov #include <cstring> 1110ab2aceSGeorge Karpenkov 1210ab2aceSGeorge Karpenkov static volatile int Sink; 1310ab2aceSGeorge Karpenkov Foo()1410ab2aceSGeorge Karpenkovvoid Foo() { 1510ab2aceSGeorge Karpenkov Sink++; 1610ab2aceSGeorge Karpenkov } 1710ab2aceSGeorge Karpenkov LLVMFuzzerTestOneInput(const uint8_t * Data,size_t Size)1810ab2aceSGeorge Karpenkovextern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { 1910ab2aceSGeorge Karpenkov int8_t Ids[256]; 2010ab2aceSGeorge Karpenkov memset(Ids, -1, sizeof(Ids)); 2110ab2aceSGeorge Karpenkov for (size_t i = 0; i < Size; i++) 2210ab2aceSGeorge Karpenkov if (Ids[Data[i]] == -1) 2310ab2aceSGeorge Karpenkov Ids[Data[i]] = i; 2410ab2aceSGeorge Karpenkov int F = Ids[(unsigned char)'F']; 2510ab2aceSGeorge Karpenkov int U = Ids[(unsigned char)'U']; 2610ab2aceSGeorge Karpenkov int Z = Ids[(unsigned char)'Z']; 2710ab2aceSGeorge Karpenkov if (F >= 0 && U > F && Z > U) { 2810ab2aceSGeorge Karpenkov Foo(); 2910ab2aceSGeorge Karpenkov } 3010ab2aceSGeorge Karpenkov return 0; 3110ab2aceSGeorge Karpenkov } 3210ab2aceSGeorge Karpenkov 33