From 02f0de2a5802105150f4a51eb9a13f4e3ea267f4 Mon Sep 17 00:00:00 2001 From: Hai Shi Date: Sun, 9 Feb 2020 13:17:40 +0800 Subject: [PATCH] Use Py_SIZE() in s_set() of cfield.c --- Modules/_ctypes/cfield.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/Modules/_ctypes/cfield.c b/Modules/_ctypes/cfield.c index f860e6e51b2468..b62d4c436384f1 100644 --- a/Modules/_ctypes/cfield.c +++ b/Modules/_ctypes/cfield.c @@ -1293,8 +1293,7 @@ s_set(void *ptr, PyObject *value, Py_ssize_t length) return NULL; } - data = PyBytes_AS_STRING(value); - size = strlen(data); /* XXX Why not Py_SIZE(value)? */ + size = Py_SIZE(value); if (size < length) { /* This will copy the terminating NUL character * if there is space for it. @@ -1306,6 +1305,8 @@ s_set(void *ptr, PyObject *value, Py_ssize_t length) size, length); return NULL; } + + data = PyBytes_AS_STRING(value); /* Also copy the terminating NUL character if there is space */ memcpy((char *)ptr, data, size); pFad - Phonifier reborn

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