compiler-rt/test/fuzzer/SimpleDictionaryTest.cpp

   1 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   2 // See https://llvm.org/LICENSE.txt for license information.
   3 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   4
   5 // Simple test for a fuzzer.
   6 // The fuzzer must find a string based on dictionary words:
   7 //   "Elvis"
   8 //   "Presley"
   9 #include <cstddef>
  10 #include <cstdint>
  11 #include <cstdlib>
  12 #include <cstring>
  13 #include <iostream>
  14 #include <ostream>
  15
  16 static volatile int Zero = 0;
  17
  18 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  19   const char *Expected = "ElvisPresley";
  20   if (Size < strlen(Expected)) return 0;
  21   size_t Match = 0;
  22   for (size_t i = 0; Expected[i]; i++)
  23     if (Expected[i] + Zero == Data[i])
  24       Match++;
  25   if (Match == strlen(Expected)) {
  26     std::cout << "BINGO; Found the target, exiting\n" << std::flush;
  27     exit(1);
  28   }
  29   return 0;
  30 }
  31