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https://github.com/alsa-project/alsa-python/issues/9
https://github.com/alsa-project/alsa-python/pull/10
https://github.com/alsa-project/alsa-python/commit/cb75f5cdba0a29bdfa43eb56285da4917d2941a9
From cb75f5cdba0a29bdfa43eb56285da4917d2941a9 Mon Sep 17 00:00:00 2001
From: Francesco Ceruti <ceppofrancy@gmail.com>
Date: Sat, 4 May 2024 22:16:16 +0200
Subject: [PATCH] alsaseq: fix seg. fault when accessing `ConstantObject` extra
Closes: https://github.com/alsa-project/alsa-python/pull/10
Signed-off-by: Francesco Ceruti <ceppofrancy@gmail.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
--- a/pyalsa/alsaseq.c
+++ b/pyalsa/alsaseq.c
@@ -353,18 +353,11 @@ typedef struct {
} ConstantObject;
#if PY_MAJOR_VERSION < 3
-/* PyInt is fixed size in Python 2 */
# define CONST_VALUE(x) PyInt_AsLong((PyObject *)x)
-# define CONST_EXTRA(x) (&(x->extra))
#else
-/* PyLong is variable size in Python 3 */
# define CONST_VALUE(x) PyLong_AsLong((PyObject *)x)
-# define CONST_EXTRA(x) \
- ((ConstantExtraFields *)( \
- ((intptr_t)(&x->extra)) \
- + abs(Py_SIZE(&x->base)) * Py_TYPE(x)->tp_itemsize \
- ))
#endif
+# define CONST_EXTRA(x) (&(x->extra))
/** alsaseq.Constant type (initialized later...) */
static PyTypeObject ConstantType;
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