launchctl list launchctl bstree
These show which jobs are active, dormant or inactive, allegedly. I have never seen an inactive job personally. Even ones that I have tried to inactivate show as 'D'
Now, in /var/db/launchd.db there are textfiles that show, per user, which jobs are actually disabled, lamentably, the old -w switch was deprecated, and the Disabled key in the plist is only a default. I don't know why they would do such a thing, there seems to be no way to say definitively
"Service X is off."
It seems that running as root I should be able to ask what is on, and what is off. What am I doing wrong?
EDIT: What I was doing wrong was ignoring
Which is the definitive place apparently for the current state of a daemon.
Handily, this means that the default will be in the plist files in /System/Launch* /Library/Launch* ~/Library/Launch* and one can just blow away ( errrm copy and move ) that directory and reboot to a default set. This worked for me recently.