compiler-rt/test/fuzzer/BadStrcmpTest.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 // Test that we don't creash in case of bad strcmp params.
   6 #include <cstddef>
   7 #include <cstdint>
   8 #include <cstring>
   9
  10 static volatile int Sink;
  11
  12 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  13   if (Size != 10) return 0;
  14   // Data is not zero-terminated, so this call is bad.
  15   // Still, there are cases when such calles appear, see e.g.
  16   // https://bugs.llvm.org/show_bug.cgi?id=32357
  17   Sink = strcmp(reinterpret_cast<const char*>(Data), "123456789");
  18   return 0;
  19 }
  20