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bpo-15954: Check return code of wcsxfrm(). (#508)

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This commit is contained in:
Serhiy Storchaka 2017-03-06 21:21:41 +02:00 committed by GitHub
parent d908fd9ee1
commit be487a65f1
1 changed files with 12 additions and 4 deletions
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12
Modules/_localemodule.c
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@ -260,7 +260,12 @@ PyLocale_strxfrm(PyObject* self, PyObject* args)
PyErr_NoMemory();
goto exit;
}
errno = 0;
n2 = wcsxfrm(buf, s, n1);
if (errno) {
PyErr_SetFromErrno(PyExc_OSError);
goto exit;
}
if (n2 >= (size_t)n1) {
/* more space needed */
wchar_t * new_buf = PyMem_Realloc(buf, (n2+1)*sizeof(wchar_t));
@ -269,13 +274,16 @@ PyLocale_strxfrm(PyObject* self, PyObject* args)
goto exit;
}
buf = new_buf;
errno = 0;
n2 = wcsxfrm(buf, s, n2+1);
if (errno) {
PyErr_SetFromErrno(PyExc_OSError);
goto exit;
}
}
result = PyUnicode_FromWideChar(buf, n2);
exit:
if (buf)
PyMem_Free(buf);
if (s)
PyMem_Free(s);
return result;
}