json/tests/thirdparty/Fuzzer/test/StrncmpOOBTest.cpp

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2016-12-22 16:08:50 +08:00
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Test that libFuzzer itself does not read out of bounds.
#include <assert.h>
#include <cstdint>
#include <cstring>
#include <cstdlib>
#include <cstddef>
#include <iostream>
static volatile int Sink;
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
if (Size < 5) return 0;
const char *Ch = reinterpret_cast<const char *>(Data);
if (Ch[Size - 3] == 'a')
Sink = strncmp(Ch + Size - 3, "abcdefg", 6);
return 0;
}