src/libcompiler_builtins/compiler-rt/test/fuzzer/AbsNegAndConstantTest.cpp

   1 // This file is distributed under the University of Illinois Open Source
   2 // License. See LICENSE.TXT for details.
   3
   4 // abs(x) < 0 and y == Const puzzle.
   5 #include <cstddef>
   6 #include <cstdint>
   7 #include <cstdio>
   8 #include <cstdlib>
   9 #include <cstring>
  10
  11 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  12   if (Size < 8) return 0;
  13   int x;
  14   unsigned y;
  15   memcpy(&x, Data, sizeof(x));
  16   memcpy(&y, Data + sizeof(x), sizeof(y));
  17   if (abs(x) < 0 && y == 0xbaddcafe) {
  18     printf("BINGO; Found the target, exiting; x = 0x%x y 0x%x\n", x, y);
  19     fflush(stdout);
  20     exit(1);
  21   }
  22   return 0;
  23 }
  24