There is a limitation of libreadline where no context/userdata
can be passed to completion functions. Thi affects iwctl since
the entity value isn't known to completion functions.
Workarounds such as getting the default device are employed but
its not a great solution.
Instead hack around this limitation by parsing the prompt to
extract the entity (second arg). Then use a generic match function
given to readline which can call the actual match function and
include the entity.
Previously, on service disappeared event the list of the known
proxy objects was cleared, but pointers to the default entity
per command family wasn’t reset. Reset default entities for
the command families to remove the dead pointers to the deleted
proxy objects.
==1325== Invalid read of size 8
==1325== at 0x4055D4: proxy_interface_is_same (dbus-proxy.c:439)
==1325== by 0x407C28: match_by_partial_name (network.c:220)
==1325== by 0x40547C: proxy_interface_find_all (dbus-proxy.c:424)
==1325== by 0x405592: proxy_property_str_completion (dbus-proxy.c:153)
==1325== by 0x407DA9: network_name_completion (network.c:241)
==1325== by 0x4E596D5: rl_completion_matches (in /usr/lib64/libreadline.so.7.0)
Station, WSC, Ad-Hoc and AP family_arg_completion functions were
identical except for which commands they were referencing and the
interface type they were interested in. Combine all these into a single
function.
This function now takes an extra argument 'extra_interface'. When
non-NULL, the property match is furthered filtered by checking whether
the proxy_interface on the given path also contains an interface of type
'extra_interface'
Change connection logic form using a list of the previously
obtained ordered networks to use network proxy objects.
This excludes the need to run get-networks command before
the connect command.
