>> those things combined mean that you get 15 bits of randomness >> from query id and 15 from source port, giving 30 bits, >> so ndb/dns is okay (for now). > > why only 15 in the query id? that's an artifact of rand() > which returns 0 ≤ n ≤ 0x7fff. why not return numbers > between 0 and 0xffff?
one might change rand or dns to get 16 bits, and that'd be fine. i doubt many programs depend on rand not returning numbers bigger than 32767. or you could use fastrand()&0xffff in dns, which would be even better. it's just one bit though. getting the other 15 was more important. russ
