xref: /third_party/json/tests/thirdparty/Fuzzer/test/SignedIntOverflowTest.cpp (revision c5f01b2f)
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1c5f01b2fSopenharmony_ci// This file is distributed under the University of Illinois Open Source
2c5f01b2fSopenharmony_ci// License. See LICENSE.TXT for details.
3c5f01b2fSopenharmony_ci
4c5f01b2fSopenharmony_ci// Test for signed-integer-overflow.
5c5f01b2fSopenharmony_ci#include <assert.h>
6c5f01b2fSopenharmony_ci#include <cstdint>
7c5f01b2fSopenharmony_ci#include <cstdlib>
8c5f01b2fSopenharmony_ci#include <cstddef>
9c5f01b2fSopenharmony_ci#include <iostream>
10c5f01b2fSopenharmony_ci#include <climits>
11c5f01b2fSopenharmony_ci
12c5f01b2fSopenharmony_cistatic volatile int Sink;
13c5f01b2fSopenharmony_cistatic int Large = INT_MAX;
14c5f01b2fSopenharmony_ci
15c5f01b2fSopenharmony_ciextern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
16c5f01b2fSopenharmony_ci  assert(Data);
17c5f01b2fSopenharmony_ci  if (Size > 0 && Data[0] == 'H') {
18c5f01b2fSopenharmony_ci    Sink = 1;
19c5f01b2fSopenharmony_ci    if (Size > 1 && Data[1] == 'i') {
20c5f01b2fSopenharmony_ci      Sink = 2;
21c5f01b2fSopenharmony_ci      if (Size > 2 && Data[2] == '!') {
22c5f01b2fSopenharmony_ci        Large++;  // int overflow.
23c5f01b2fSopenharmony_ci      }
24c5f01b2fSopenharmony_ci    }
25c5f01b2fSopenharmony_ci  }
26c5f01b2fSopenharmony_ci  return 0;
27c5f01b2fSopenharmony_ci}
28c5f01b2fSopenharmony_ci
29

Indexes created Thu Nov 07 10:32:03 CST 2024