Add 'json4cpp/' from commit '9a737481aed085fd289f82dff1fa8c3c66627a7e'

git-subtree-dir: json4cpp
git-subtree-mainline: 292baed7ac0cf84263263966ed32ed113cae857f
git-subtree-split: 9a737481aed085fd289f82dff1fa8c3c66627a7e

1 files changed, 34 insertions, 0 deletions

diff --git a/json4cpp/tests/thirdparty/Fuzzer/test/SwapCmpTest.cpp b/json4cpp/tests/thirdparty/Fuzzer/test/SwapCmpTest.cpp
new file mode 100644
index 0000000000..f79db4ccf7
--- /dev/null
+++ b/json4cpp/tests/thirdparty/Fuzzer/test/SwapCmpTest.cpp
@@ -0,0 +1,34 @@
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+
+// The fuzzer must find several constants with swapped bytes.
+#include <cstdint>
+#include <cstdlib>
+#include <cstring>
+#include <cstdio>
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+  if (Size < 14) return 0;
+  uint64_t x = 0;
+  uint32_t y = 0;
+  uint16_t z = 0;
+  memcpy(&x, Data, sizeof(x));
+  memcpy(&y, Data + Size / 2, sizeof(y));
+  memcpy(&z, Data + Size - sizeof(z), sizeof(z));
+
+  x = __builtin_bswap64(x);
+  y = __builtin_bswap32(y);
+  z = __builtin_bswap16(z);
+
+  if (x == 0x46555A5A5A5A5546ULL &&
+      z == 0x4F4B &&
+      y == 0x66757A7A &&
+      true
+      ) {
+    if (Data[Size - 3] == 'z') {
+      fprintf(stderr, "BINGO; Found the target\n");
+      exit(1);
+    }
+  }
+  return 0;
+}