--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/contrib/fuzz/fm1readmarkers.cc Thu Dec 20 01:22:58 2018 -0500
@@ -0,0 +1,60 @@
+#include <Python.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <string>
+
+#include "pyutil.h"
+
+extern "C" {
+
+static PyCodeObject *code;
+
+extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv)
+{
+ contrib::initpy(*argv[0]);
+ code = (PyCodeObject *)Py_CompileString(R"py(
+from parsers import fm1readmarkers
+def maybeint(s, default):
+ try:
+ return int(s)
+ except ValueError:
+ return default
+try:
+ parts = data.split('\0', 2)
+ if len(parts) == 3:
+ offset, stop, data = parts
+ elif len(parts) == 2:
+ stop, data = parts
+ offset = 0
+ else:
+ offset = stop = 0
+ offset, stop = maybeint(offset, 0), maybeint(stop, len(data))
+ fm1readmarkers(data, offset, stop)
+except Exception as e:
+ pass
+ # uncomment this print if you're editing this Python code
+ # to debug failures.
+ # print e
+)py",
+ "fuzzer", Py_file_input);
+ return 0;
+}
+
+int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size)
+{
+ PyObject *text =
+ PyBytes_FromStringAndSize((const char *)Data, (Py_ssize_t)Size);
+ PyObject *locals = PyDict_New();
+ PyDict_SetItemString(locals, "data", text);
+ PyObject *res = PyEval_EvalCode(code, contrib::pyglobals(), locals);
+ if (!res) {
+ PyErr_Print();
+ }
+ Py_XDECREF(res);
+ Py_DECREF(locals);
+ Py_DECREF(text);
+ return 0; // Non-zero return values are reserved for future use.
+}
+}