1berry/cpython
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

gh-111178: fix UBSan failures for gdbmobject (GH-128178)

Browse Source 
* fix UBSan failures for `gdbmobject`
* suppress unused return values
This commit is contained in:
Bénédikt Tran 2025-01-10 11:52:36 +01:00 committed by GitHub
parent 28ffdc5702
commit baf65715fc
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 20 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
Modules/_gdbmmodule.c
View File

@ -76,6 +76,8 @@ typedef struct {
GDBM_FILE di_dbm;
} gdbmobject;
#define _gdbmobject_CAST(op) ((gdbmobject *)(op))
#include "clinic/_gdbmmodule.c.h"
#define check_gdbmobject_open(v, err) \
@ -120,27 +122,29 @@ newgdbmobject(_gdbm_state *state, const char *file, int flags, int mode)
/* Methods */
static int
gdbm_traverse(gdbmobject *dp, visitproc visit, void *arg)
gdbm_traverse(PyObject *op, visitproc visit, void *arg)
{
Py_VISIT(Py_TYPE(dp));
Py_VISIT(Py_TYPE(op));
return 0;
}
static void
gdbm_dealloc(gdbmobject *dp)
gdbm_dealloc(PyObject *op)
{
gdbmobject *dp = _gdbmobject_CAST(op);
PyTypeObject *tp = Py_TYPE(dp);
PyObject_GC_UnTrack(dp);
if (dp->di_dbm) {
gdbm_close(dp->di_dbm);
}
PyTypeObject *tp = Py_TYPE(dp);
tp->tp_free(dp);
Py_DECREF(tp);
}
static Py_ssize_t
gdbm_length(gdbmobject *dp)
gdbm_length(PyObject *op)
{
gdbmobject *dp = _gdbmobject_CAST(op);
_gdbm_state *state = PyType_GetModuleState(Py_TYPE(dp));
if (dp->di_dbm == NULL) {
PyErr_SetString(state->gdbm_error, "GDBM object has already been closed");
@ -185,8 +189,9 @@ gdbm_length(gdbmobject *dp)
}
static int
gdbm_bool(gdbmobject *dp)
gdbm_bool(PyObject *op)
{
gdbmobject *dp = _gdbmobject_CAST(op);
_gdbm_state *state = PyType_GetModuleState(Py_TYPE(dp));
if (dp->di_dbm == NULL) {
PyErr_SetString(state->gdbm_error, "GDBM object has already been closed");
@ -235,10 +240,11 @@ parse_datum(PyObject *o, datum *d, const char *failmsg)
}
static PyObject *
gdbm_subscript(gdbmobject *dp, PyObject *key)
gdbm_subscript(PyObject *op, PyObject *key)
{
PyObject *v;
datum drec, krec;
gdbmobject *dp = _gdbmobject_CAST(op);
_gdbm_state *state = PyType_GetModuleState(Py_TYPE(dp));
if (!parse_datum(key, &krec, NULL)) {
@ -275,7 +281,7 @@ _gdbm_gdbm_get_impl(gdbmobject *self, PyObject *key, PyObject *default_value)
{
PyObject *res;
res = gdbm_subscript(self, key);
res = gdbm_subscript((PyObject *)self, key);
if (res == NULL && PyErr_ExceptionMatches(PyExc_KeyError)) {
PyErr_Clear();
return Py_NewRef(default_value);
@ -284,10 +290,11 @@ _gdbm_gdbm_get_impl(gdbmobject *self, PyObject *key, PyObject *default_value)
}
static int
gdbm_ass_sub(gdbmobject *dp, PyObject *v, PyObject *w)
gdbm_ass_sub(PyObject *op, PyObject *v, PyObject *w)
{
datum krec, drec;
const char *failmsg = "gdbm mappings have bytes or string indices only";
gdbmobject *dp = _gdbmobject_CAST(op);
_gdbm_state *state = PyType_GetModuleState(Py_TYPE(dp));
if (!parse_datum(v, &krec, failmsg)) {
@ -345,12 +352,12 @@ _gdbm_gdbm_setdefault_impl(gdbmobject *self, PyObject *key,
{
PyObject *res;
res = gdbm_subscript(self, key);
res = gdbm_subscript((PyObject *)self, key);
if (res == NULL && PyErr_ExceptionMatches(PyExc_KeyError)) {
PyErr_Clear();
if (gdbm_ass_sub(self, key, default_value) < 0)
if (gdbm_ass_sub((PyObject *)self, key, default_value) < 0)
return NULL;
return gdbm_subscript(self, key);
return gdbm_subscript((PyObject *)self, key);
}
return res;
}
@ -841,7 +848,7 @@ _gdbm_module_clear(PyObject *module)
static void
_gdbm_module_free(void *module)
{
_gdbm_module_clear((PyObject *)module);
(void)_gdbm_module_clear((PyObject *)module);
}
static PyModuleDef_Slot _gdbm_module_slots[] = {