--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/contrib/fuzz/dirs.cc Wed Oct 09 20:48:12 2019 -0700
@@ -0,0 +1,56 @@
+#include <Python.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "pyutil.h"
+
+#include <string>
+
+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 dirs
+try:
+ files = mdata.split('\n')
+ d = dirs(files)
+ list(d)
+ 'a' in d
+ if files:
+ files[0] in d
+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)
+{
+ // Don't allow fuzzer inputs larger than 100k, since we'll just bog
+ // down and not accomplish much.
+ if (Size > 100000) {
+ return 0;
+ }
+ PyObject *mtext =
+ PyBytes_FromStringAndSize((const char *)Data, (Py_ssize_t)Size);
+ PyObject *locals = PyDict_New();
+ PyDict_SetItemString(locals, "mdata", mtext);
+ PyObject *res = PyEval_EvalCode(code, contrib::pyglobals(), locals);
+ if (!res) {
+ PyErr_Print();
+ }
+ Py_XDECREF(res);
+ Py_DECREF(locals);
+ Py_DECREF(mtext);
+ return 0; // Non-zero return values are reserved for future use.
+}
+}