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 a particular string.
5 #include <cstdint>
6 #include <cstdio>
7 #include <cstdlib>
8 #include <cstring>
9 
10 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
11   const char *S = (const char*)Data;
12   volatile auto Strncmp = &(strncmp);   // Make sure strncmp is not inlined.
13   if (Size >= 6 && !Strncmp(S, "qwerty", 6)) {
14     fprintf(stderr, "BINGO\n");
15     exit(1);
16   }
17   return 0;
18 }
19