def _check_listening_on_services_ports(services, test=False):
"""Check that the unit is actually listening (has the port open) on the
ports that the service specifies are open. If test is True then the
function returns the services with ports that are open rather than
closed.
Returns an OrderedDict of service: ports and a list of booleans
@param services: OrderedDict(service: [port, ...], ...)
@param test: default=False, if False, test for closed, otherwise open.
@returns OrderedDict(service: [port-not-open, ...]...), [boolean]
"""
test = not(not(test)) # ensure test is True or False
all_ports = list(itertools.chain(*services.values()))
ports_states = [port_has_listener('0.0.0.0', p) for p in all_ports]
map_ports = OrderedDict()
matched_ports = [p for p, opened in zip(all_ports, ports_states)
if opened == test] # essentially opened xor test
for service, ports in services.items():
set_ports = set(ports).intersection(matched_ports)
if set_ports:
map_ports[service] = set_ports
return map_ports, ports_states
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