CVSROOT: /cvs
Module name: src
Changes by: matt...@cvs.openbsd.org 2012/06/24 12:25:12
Modified files:
sys/dev : rnd.c
lib/libc/crypt : arc4random.c
Log message:
Change arc4random_uniform() to calculate ``2**32 % upper_bound'' as
``-upper_bound % upper_bound''. Simplifies the code and makes it the
same on both ILP32 and LP64 architectures, and also slightly faster on
LP64 architectures by using a 32-bit remainder instead of a 64-bit
remainder.
Pointed out by Jorden Verwer on tech@
ok deraadt; no objections from djm or otto
