compiler-rt/test/fuzzer/CxxStringEqTest.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. Must find a specific string
   6 // used in std::string operator ==.
   7 #include <cstddef>
   8 #include <cstdint>
   9 #include <cstdlib>
  10 #include <iostream>
  11 #include <string>
  12
  13 static volatile int Sink;
  14
  15 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  16   std::string Str((const char*)Data, Size);
  17   bool Eq = Str == "FooBar";
  18   Sink = Str == "123456";   // Try to confuse the fuzzer
  19   if (Eq) {
  20     std::cout << "BINGO; Found the target, exiting\n";
  21     std::cout.flush();
  22     abort();
  23   }
  24   return 0;
  25 }
  26