Issue #18408: Fix PyCStructUnionType_update_stgdict(), handle
_ctypes_alloc_format_string() failure
diff --git a/Modules/_ctypes/stgdict.c b/Modules/_ctypes/stgdict.c
index 25d9996..b95b0a4 100644
--- a/Modules/_ctypes/stgdict.c
+++ b/Modules/_ctypes/stgdict.c
@@ -417,6 +417,8 @@
that). Use 'B' for bytes. */
stgdict->format = _ctypes_alloc_format_string(NULL, "B");
}
+ if (stgdict->format == NULL)
+ return -1;
#define realdict ((PyObject *)&stgdict->dict)
for (i = 0; i < len; ++i) {
@@ -483,7 +485,7 @@
char *fieldfmt = dict->format ? dict->format : "B";
char *fieldname = _PyUnicode_AsString(name);
char *ptr;
- Py_ssize_t len;
+ Py_ssize_t len;
char *buf;
if (fieldname == NULL)