On Sep 18, 2009, at 4:46 PM, Scott Haneda wrote:
Where does adduser/addgroup get the uid and gid to start with so it
does not have collisions?
The best way to answer a question like this, is to look at the source:
http://trac.macports.org/browser/trunk/base/src/port1.0/portutil.tcl
proc adduser sets the uid by calling nextuid
nextuid is from Pextlib.c:
http://trac.macports.org/browser/trunk/base/src/pextlib1.0/Pextlib.c
There you can see that nextuid is implemented by NextuidCmd, which
starts at MIN_USABLE_UID (which is set to 500) and increments until it
finds an unused uid. (It uses the same algorithm to find an unused gid).
--
Daniel J. Luke
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