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| author | Antoine Pitrou <solipsis@pitrou.net> | 2013-05-04 21:16:59 (GMT) |
|---|---|---|
| committer | Antoine Pitrou <solipsis@pitrou.net> | 2013-05-04 21:16:59 (GMT) |
| commit | c8c952ce2a77343b6fe87a9534026b4b34011322 (patch) | |
| tree | 2dda637adc73ae67d24a27e39456e9922be2b333 /Modules/signalmodule.c | |
| parent | 957a23b0883c1d92f4d5c5de2459319615a8ed34 (diff) | |
| download | cpython-c8c952ce2a77343b6fe87a9534026b4b34011322.zip cpython-c8c952ce2a77343b6fe87a9534026b4b34011322.tar.gz cpython-c8c952ce2a77343b6fe87a9534026b4b34011322.tar.bz2 | |
Issue #14173: Avoid crashing when reading a signal handler during interpreter shutdown.
Diffstat (limited to 'Modules/signalmodule.c')
| -rw-r--r-- | Modules/signalmodule.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/Modules/signalmodule.c b/Modules/signalmodule.c index 0cc7237..fbe1bb7 100644 --- a/Modules/signalmodule.c +++ b/Modules/signalmodule.c @@ -344,7 +344,10 @@ signal_signal(PyObject *self, PyObject *args) Handlers[sig_num].tripped = 0; Py_INCREF(obj); Handlers[sig_num].func = obj; - return old_handler; + if (old_handler != NULL) + return old_handler; + else + Py_RETURN_NONE; } PyDoc_STRVAR(signal_doc, @@ -372,8 +375,13 @@ signal_getsignal(PyObject *self, PyObject *args) return NULL; } old_handler = Handlers[sig_num].func; - Py_INCREF(old_handler); - return old_handler; + if (old_handler != NULL) { + Py_INCREF(old_handler); + return old_handler; + } + else { + Py_RETURN_NONE; + } } PyDoc_STRVAR(getsignal_doc, |