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 // Test for signed-integer-overflow. 6 #include <assert.h> 7 #include <climits> 8 #include <cstddef> 9 #include <cstdint> 10 #include <cstdlib> 11 #include <iostream> 12 13 static volatile int32_t Sink; 14 static uint8_t Large = UINT8_MAX; 15 LLVMFuzzerTestOneInput(const uint8_t * Data,size_t Size)16extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { 17 assert(Data); 18 if (Size > 0 && Data[0] == 'H') { 19 Sink = 1; 20 if (Size > 1 && Data[1] == 'i') { 21 Sink = 2; 22 if (Size > 2 && Data[2] == '!') { 23 Large = Large + 1; // 'char overflow'. 24 } 25 } 26 } 27 return 0; 28 } 29