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| author | Hai Shi <shihai1992@gmail.com> | 2020-06-01 16:54:18 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-06-01 16:54:18 (GMT) |
| commit | a97011b9b8c8111f42e1e7594081956136d848da (patch) | |
| tree | c755b7df4d7b1486d323835fb43e4195826a4599 /Modules | |
| parent | e9684fac5a158be9806304a676e619857520a4dc (diff) | |
| download | cpython-a97011b9b8c8111f42e1e7594081956136d848da.zip cpython-a97011b9b8c8111f42e1e7594081956136d848da.tar.gz cpython-a97011b9b8c8111f42e1e7594081956136d848da.tar.bz2 | |
bpo-39593: Add test on ctypes cfield.c s_set() (GH-18424)
Diffstat (limited to 'Modules')
| -rw-r--r-- | Modules/_ctypes/cfield.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Modules/_ctypes/cfield.c b/Modules/_ctypes/cfield.c index 7f85319..32a2bee 100644 --- a/Modules/_ctypes/cfield.c +++ b/Modules/_ctypes/cfield.c @@ -1263,7 +1263,9 @@ s_set(void *ptr, PyObject *value, Py_ssize_t length) } data = PyBytes_AS_STRING(value); - size = strlen(data); /* XXX Why not Py_SIZE(value)? */ + // bpo-39593: Use strlen() to truncate the string at the first null character. + size = strlen(data); + if (size < length) { /* This will copy the terminating NUL character * if there is space for it. |