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 
LLVMFuzzerTestOneInput(const uint8_t * Data,size_t Size)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 
32