> It is also important that the caller provides enough XXX to actually > have a chance to finish the loop against a motivated concurrent user, > especially when using something like /tmp.
For us that is not really a problem since our mktemp is using 63 possibilities per slot. Stem selection remains important, too. 250047 for XXX 15752961 for XXXX 992436543 for XXXX Personally I would recommend 10 X's.