1 files changed, 47 insertions, 0 deletions
diff --git a/test/ossfuzz/json_load_dump_fuzzer.cc b/test/ossfuzz/json_load_dump_fuzzer.cc
new file mode 100644
index 0000000..09f52d2
--- /dev/null
+++ b/test/ossfuzz/json_load_dump_fuzzer.cc
@@ -0,0 +1,47 @@
+#include <stdint.h>
+#include <sys/types.h>
+
+#include "jansson.h"
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+  json_error_t error;
+
+  if (size < sizeof(size_t) + sizeof(size_t))
+  {
+    return 0;
+  }
+
+  // Use the first sizeof(size_t) bytes as load flags.
+  size_t load_flags = *(const size_t*)data;
+  data += sizeof(size_t);
+  size -= sizeof(size_t);
+
+  // Use the next sizeof(size_t) bytes as dump flags.
+  size_t dump_flags = *(const size_t*)data;
+  data += sizeof(size_t);
+  size -= sizeof(size_t);
+
+  // Attempt to load the remainder of the data with the given load flags.
+  const char* text = reinterpret_cast<const char *>(data);
+  json_t* jobj = json_loadb(text, size, load_flags, &error);
+
+  if (jobj == NULL)
+  {
+    return 0;
+  }
+
+  // Attempt to dump the loaded json object with the given dump flags.
+  char* out = json_dumps(jobj, dump_flags);
+  if (out)
+  {
+    free(out);
+  }
+
+  if (jobj)
+  {
+    json_decref(jobj);
+  }
+
+  return 0;
+}
+\ No newline at end of file