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-rw-r--r--Misc/NEWS3
-rw-r--r--Modules/_ctypes/callproc.c2
2 files changed, 4 insertions, 1 deletions
diff --git a/Misc/NEWS b/Misc/NEWS
index bff99b9b2d..f34cb916c0 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -88,6 +88,9 @@ Core and Builtins
Library
-------
+- Issue #4867: Fixed a crash in ctypes when passing a string to a
+ function without defining argtypes.
+
- Issue #4272: Add an optional argument to the GzipFile constructor to override
the timestamp in the gzip stream. The default value remains the current time.
The information can be used by e.g. gunzip when decompressing. Patch by
diff --git a/Modules/_ctypes/callproc.c b/Modules/_ctypes/callproc.c
index 0f9f511ef7..bf0de88f79 100644
--- a/Modules/_ctypes/callproc.c
+++ b/Modules/_ctypes/callproc.c
@@ -645,8 +645,8 @@ static int ConvParam(PyObject *obj, Py_ssize_t index, struct argument *pa)
#ifdef CTYPES_UNICODE
if (PyUnicode_Check(obj)) {
-#ifdef HAVE_USABLE_WCHAR_T
pa->ffi_type = &ffi_type_pointer;
+#ifdef HAVE_USABLE_WCHAR_T
pa->value.p = PyUnicode_AS_UNICODE(obj);
Py_INCREF(obj);
pa->keep = obj;