Mercurial > cpython-lru_cache-weakref
diff Python/traceback.c @ 84757:8fdb83492a58 3.3
Check return value of lseek() in _Py_DisplaySourceLine().
Also use portable SEEK_SET instead of 0.
CID 1040639
| author | Christian Heimes <christian@cheimes.de> |
|---|---|
| date | Sun, 21 Jul 2013 02:12:35 +0200 |
| parents | 82e9a9f8be3c |
| children | 34ca4dd47c54 228180598aab |
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--- a/Python/traceback.c Sun Jul 21 02:04:35 2013 +0200 +++ b/Python/traceback.c Sun Jul 21 02:12:35 2013 +0200 @@ -262,7 +262,13 @@ } found_encoding = PyTokenizer_FindEncodingFilename(fd, filename); encoding = (found_encoding != NULL) ? found_encoding : "utf-8"; - lseek(fd, 0, 0); /* Reset position */ + /* Reset position */ + if (lseek(fd, 0, SEEK_SET) == (off_t)-1) { + Py_DECREF(io); + Py_DECREF(binary); + PyMem_FREE(found_encoding); + return PyErr_SetFromErrnoWithFilenameObject(PyExc_IOError, filename); + } fob = _PyObject_CallMethodId(io, &PyId_TextIOWrapper, "Os", binary, encoding); Py_DECREF(io); Py_DECREF(binary);