Change Details

Previously, syslogd would listen on every socket and call shutdown() if secure mode was enabled. These sockets had their sl_recv actions set to NULL, so they could not be read. If they had pending data, their EVFILT_READ kevent filters would infinitely trigger, thrashing the kevent() loop. To fix this, listen() should not be called if syslogd is in secure mode.

If syslogd is in secure mode, all INET sockets are shutdown. Do not add these to the kqueue because we can't read from them. Also, remove the listen() call when setting up sockets. Syslogd exclusively uses SOCK_DGRAM sockets, so calling listen() is useless.

Previously,If syslogd is in secure mode, all INET sockets are shutdown. syslogd would listen on every socket and call shutdown() ifDo not secure mode was enabledadd these to the kqueue because we can't read from them. These sockets had their sl_recv actions set to NULL,Also, remove the listen() call when setting up sockets. so they could notSyslogd be read. If they had pending data, their EVFILT_READ kevent filters would infinitely trigger, thrashing the kevent() loop. To fix thiexclusively uses SOCK_DGRAM sockets, listen() should not beso called if syslogding listen() is in secure modeuseless.