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 <assert.h>
6 #include <cstddef>
7 #include <cstdint>
8 #include <cstdlib>
9 #include <iostream>
10 #include <ostream>
11 
12 static volatile bool SeedLargeBuffer;
13 
14 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
15   assert(Data);
16   if (Size >= 4)
17     SeedLargeBuffer = true;
18   if (Size == 3 && SeedLargeBuffer && Data[3]) {
19     std::cout << "Woops, reading Data[3] w/o crashing\n" << std::flush;
20     exit(1);
21   }
22   return 0;
23 }
24 
25