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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 
     27