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--- python/libxml.c.orig 2023-08-11 20:30:35 UTC
+++ python/libxml.c
@@ -1606,12 +1606,19 @@ libxml_xmlErrorFuncHandler(ATTRIBUTE_UNUSED void *ctx,
PyObject *message;
PyObject *result;
char str[1000];
+ unsigned char *ptr = (unsigned char *)str;
#ifdef DEBUG_ERROR
printf("libxml_xmlErrorFuncHandler(%p, %s, ...) called\n", ctx, msg);
#endif
+#if PY_MAJOR_VERSION >= 3
+ /* Ensure the error string doesn't start at UTF8 continuation. */
+ while (*ptr && (*ptr & 0xc0) == 0x80)
+ ptr++;
+#endif
+
if (libxml_xmlPythonErrorFuncHandler == NULL) {
va_start(ap, msg);
vfprintf(stderr, msg, ap);
@@ -1625,9 +1632,11 @@ libxml_xmlErrorFuncHandler(ATTRIBUTE_UNUSED void *ctx,
list = PyTuple_New(2);
PyTuple_SetItem(list, 0, libxml_xmlPythonErrorFuncCtxt);
Py_XINCREF(libxml_xmlPythonErrorFuncCtxt);
- message = libxml_charPtrConstWrap(str);
+ message = libxml_charPtrConstWrap(ptr);
PyTuple_SetItem(list, 1, message);
result = PyObject_CallObject(libxml_xmlPythonErrorFuncHandler, list);
+ /* Forget any errors caused in the error handler. */
+ PyErr_Clear();
Py_XDECREF(list);
Py_XDECREF(result);
}
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