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Issue #3239: Checking signal's default action before handling it.

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This commit is contained in:
Aidin Gharibnavaz 2016-09-15 18:34:27 +04:30
parent b1826d657f
commit b7853f2031
1 changed files with 8 additions and 3 deletions
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11
certbot/error_handler.py
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@ -15,9 +15,14 @@ logger = logging.getLogger(__name__)
# potentially occur from inside Python. Signals such as SIGILL were not
# included as they could be a sign of something devious and we should terminate
# immediately.
_SIGNALS = ([signal.SIGTERM] if os.name == "nt" else
[signal.SIGTERM, signal.SIGHUP, signal.SIGQUIT,
signal.SIGXCPU, signal.SIGXFSZ])
_SIGNALS = [signal.SIGTERM]
if os.name != "nt":
for signal_code in [signal.SIGTERM, signal.SIGHUP, signal.SIGQUIT,
signal.SIGXCPU, signal.SIGXFSZ]:
# Adding only those signals that their default action is not Ignore.
# This is platform-dependent, so we check it dynamically.
if signal.getsignal(signal_code) != signal.SIG_IGN:
_SIGNALS.append(signal_code)
class ErrorHandler(object):