ceph/src/jaegertracing/opentelemetry-cpp/third_party/nlohmann-json/test/thirdparty/Fuzzer/test/ShrinkControlFlowTest.cpp

   1 // This file is distributed under the University of Illinois Open Source
   2 // License. See LICENSE.TXT for details.
   3
   4 // Test that we can find the minimal item in the corpus (3 bytes: "FUZ").
   5 #include <cstdint>
   6 #include <cstdlib>
   7 #include <cstddef>
   8 #include <cstring>
   9 #include <cstdio>
  10
  11 static volatile int Sink;
  12
  13 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  14   int8_t Ids[256];
  15   memset(Ids, -1, sizeof(Ids));
  16   for (size_t i = 0; i < Size; i++)
  17     if (Ids[Data[i]] == -1)
  18       Ids[Data[i]] = i;
  19   int F = Ids[(unsigned char)'F'];
  20   int U = Ids[(unsigned char)'U'];
  21   int Z = Ids[(unsigned char)'Z'];
  22   if (F >= 0 && U > F && Z > U) {
  23     Sink++;
  24     //fprintf(stderr, "IDS: %d %d %d\n", F, U, Z);
  25   }
  26   return 0;
  27 }
  28