pcap_breakloop(3pcap) on macOS
The text 8cdbf728c522, as Mac OS X 10.6.8, Mac OS X 10.6.7, Mac OS X 10.6.6, Mac OS X 10.6.5, Mac OS X 10.6.4, Mac OS X 10.6.3, Mac OS X 10.6.2, Mac OS X 10.6.1, Mac OS X 10.6 shipped it.
force a pcap_dispatch() or pcap_loop() call to return