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dupenv apparently returns the size fo the buffer not the string

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Kovid Goyal 2018-02-14 07:13:34 +05:30
parent ac181d2198
commit 8f82de9406
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1 changed files with 2 additions and 2 deletions
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src/calibre/utils/windows/winutil.c
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@ -237,8 +237,8 @@ winutil_getenv(PyObject *self, PyObject *args) {
wchar_t *buf = NULL;
size_t sz = 0;
PyObject *ans = NULL;
if (_wdupenv_s(&buf, &sz, q) != 0 || buf == NULL) { ans = Py_None; Py_INCREF(ans); }
else ans = PyUnicode_FromWideChar(buf, sz);
if (_wdupenv_s(&buf, &sz, q) != 0 || buf == NULL || sz == 0) { ans = Py_None; Py_INCREF(ans); }
else ans = PyUnicode_FromWideChar(buf, sz - 1);
if (buf) free(buf);
return ans;
}