Provide a way to differentiate preferred networks with and without passwords

[keithrbennett]

For those of us with many (hundreds of) preferred networks, the WiFi GUI may be being slowed down because of this.

It's nice to have preferred networks with passwords saved, because that eliminates the need to find again the password on revisiting that site. However, saving networks without passwords is not as valuable.

It would be nice to provide a way to provide a way to fetch 2 additional lists of preferred networks; one with, and one without passwords.

This is easy to do, as the following command produces a list of network names. The command below is a start:

security dump "/Library/Keychains/System.keychain" -D "AirPort network password" | grep acct | sort -u

It produces lines like the following:

"acct"<blob>="PLDTHOMEFIBR_SHOTEL"

Producing the list of networks without a password would then simply be subtracting the ones with passwords from the entire list.

We would also need to decide how to fit it into the UI; possibly as options to the pref_nets command.