bpo-28261: fix err msgs where PyArg_ParseTuple is used to parse normal tuples (leftovers) (#3198)
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@ -531,7 +531,15 @@ _io_IncrementalNewlineDecoder_getstate_impl(nldecoder_object *self)
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_PyIO_str_getstate, NULL);
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if (state == NULL)
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return NULL;
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if (!PyArg_ParseTuple(state, "OK", &buffer, &flag)) {
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if (!PyTuple_Check(state)) {
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PyErr_SetString(PyExc_TypeError,
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"illegal decoder state");
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Py_DECREF(state);
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return NULL;
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}
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if (!PyArg_ParseTuple(state, "OK;illegal decoder state",
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&buffer, &flag))
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{
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Py_DECREF(state);
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return NULL;
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}
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@ -669,7 +677,7 @@ typedef struct
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written, or NULL */
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Py_ssize_t pending_bytes_count;
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/* snapshot is either None, or a tuple (dec_flags, next_input) where
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/* snapshot is either NULL, or a tuple (dec_flags, next_input) where
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* dec_flags is the second (integer) item of the decoder state and
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* next_input is the chunk of input bytes that comes next after the
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* snapshot point. We use this to reconstruct decoder states in tell().
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@ -2351,6 +2359,7 @@ _io_TextIOWrapper_tell_impl(textio *self)
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goto fail;
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/* Skip backward to the snapshot point (see _read_chunk). */
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assert(PyTuple_Check(self->snapshot));
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if (!PyArg_ParseTuple(self->snapshot, "iO", &cookie.dec_flags, &next_input))
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goto fail;
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@ -2378,7 +2387,15 @@ _io_TextIOWrapper_tell_impl(textio *self)
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_PyIO_str_getstate, NULL); \
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if (_state == NULL) \
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goto fail; \
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if (!PyArg_ParseTuple(_state, "Oi", &dec_buffer, &dec_flags)) { \
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if (!PyTuple_Check(_state)) { \
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PyErr_SetString(PyExc_TypeError, \
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"illegal decoder state"); \
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Py_DECREF(_state); \
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goto fail; \
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} \
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if (!PyArg_ParseTuple(_state, "Oi;illegal decoder state", \
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&dec_buffer, &dec_flags)) \
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{ \
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Py_DECREF(_state); \
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goto fail; \
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} \
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