ceph/src/jaegertracing/opentelemetry-cpp/third_party/nlohmann-json/test/thirdparty/Fuzzer/test/StrncmpOOBTest.cpp

   1 // This file is distributed under the University of Illinois Open Source
   2 // License. See LICENSE.TXT for details.
   3
   4 // Test that libFuzzer itself does not read out of bounds.
   5 #include <assert.h>
   6 #include <cstdint>
   7 #include <cstring>
   8 #include <cstdlib>
   9 #include <cstddef>
  10 #include <iostream>
  11
  12 static volatile int Sink;
  13
  14 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  15   if (Size < 5) return 0;
  16   const char *Ch = reinterpret_cast<const char *>(Data);
  17   if (Ch[Size - 3] == 'a')
  18     Sink = strncmp(Ch + Size - 3, "abcdefg", 6);
  19   return 0;
  20 }
  21