compiler-rt/test/fuzzer/Switch3Test.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. The fuzzer must find the interesting switch value.
   6 #include <cstddef>
   7 #include <cstdint>
   8 #include <cstdio>
   9 #include <cstdlib>
  10 #include <cstring>
  11
  12 static volatile int Sink;
  13
  14 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  15   uint32_t v;
  16   if (Size < 100) return 0;
  17   memcpy(&v, Data + Size / 2, sizeof(v));
  18   switch(v) {
  19     case 0x47524159: abort();
  20     case 0x52474220: abort();
  21     default:;
  22   }
  23   return 0;
  24 }
  25