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authorAlexey Izbyshev <izbyshev@users.noreply.github.com>2018-02-18 17:57:24 (GMT)
committerSerhiy Storchaka <storchaka@gmail.com>2018-02-18 17:57:24 (GMT)
commitb3b4a9d3001f1fc7df8efcccdce081de54fa5eab (patch)
treef7703c631f9a4f6c17e8a71361a42e8a68a5f0a2 /Python/fileutils.c
parente8eb972514cad6086b752754c1d34d703c04dd82 (diff)
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bpo-32869: Fix incorrect dst buffer size for MultiByteToWideChar (#5739)
This function expects the destination buffer size to be given in wide characters, not bytes.
Diffstat (limited to 'Python/fileutils.c')
-rw-r--r--Python/fileutils.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/Python/fileutils.c b/Python/fileutils.c
index 3cf8b7a..32aeea4 100644
--- a/Python/fileutils.c
+++ b/Python/fileutils.c
@@ -1289,7 +1289,8 @@ _Py_fopen_obj(PyObject *path, const char *mode)
if (wpath == NULL)
return NULL;
- usize = MultiByteToWideChar(CP_ACP, 0, mode, -1, wmode, sizeof(wmode));
+ usize = MultiByteToWideChar(CP_ACP, 0, mode, -1,
+ wmode, Py_ARRAY_LENGTH(wmode));
if (usize == 0) {
PyErr_SetFromWindowsErr(0);
return NULL;