llvm-project/llvm/lib/Fuzzer/test/SignedIntOverflowTest.cpp

29 lines
626 B
C++

// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Test for signed-integer-overflow.
#include <assert.h>
#include <cstdint>
#include <cstdlib>
#include <cstddef>
#include <iostream>
#include <climits>
static volatile int Sink;
static int Large = INT_MAX;
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
assert(Data);
if (Size > 0 && Data[0] == 'H') {
Sink = 1;
if (Size > 1 && Data[1] == 'i') {
Sink = 2;
if (Size > 2 && Data[2] == '!') {
Large++; // int overflow.
}
}
}
return 0;
}