LLVM  4.0.0
NullDerefTest.cpp
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1 // This file is distributed under the University of Illinois Open Source
2 // License. See LICENSE.TXT for details.
3 
4 // Simple test for a fuzzer. The fuzzer must find the string "Hi!".
5 #include <cstdint>
6 #include <cstdlib>
7 #include <cstddef>
8 #include <iostream>
9 
10 static volatile int Sink;
11 static volatile int *Null = 0;
12 
13 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
14  if (Size > 0 && Data[0] == 'H') {
15  Sink = 1;
16  if (Size > 1 && Data[1] == 'i') {
17  Sink = 2;
18  if (Size > 2 && Data[2] == '!') {
19  std::cout << "Found the target, dereferencing NULL\n";
20  *Null = 1;
21  }
22  }
23  }
24  return 0;
25 }
26 
static volatile int * Null
int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size)
static volatile int Sink