Environment/permissions on NSTask-launched app

FROM : Brad Peterson
DATE : Wed Jul 19 03:35:20 2006

Hi all,

I'm experiencing some very odd behavior with NSTask.

It seems that some portions of the main app's
environment are inherited by the NSTask-launched
"sub-task".

My main app runs as root, and occasionally relies on a
sub task to do specialized functions, such as writing
data to the Address Book.

When this sub-task is launched on its own, outside of
the main app, everything writes to Address Book just
fine. However, when it's run as a sub-task through
NSTask, the writes fail every time.

I've confirmed that the sub-task isn't running as root
(though I don't know why that would make a difference)
by logging the results of a getgid() call. (501 was
the result.)

My question is this: Are there any known issues with
NSTask along these lines? Or, does NSTask change the
operating environment of the sub-task in some way?

Also, does anyone have any suggestions on how I can
debug this further? Possibly a good sample that logs
all kinds of crazy information about the environment?
;)

Many thanks,

B

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