[Heimdal-source-changes] [heimdal/heimdal] 4cf66a: roken: use Win32 rand_s() for rk_random() when ava...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/heimdal/heimdal
  Commit: 4cf66ae8e4341b02d45ddba9cf860c79e731b3fb
      https://github.com/heimdal/heimdal/commit/4cf66ae8e4341b02d45ddba9cf860c79e731b3fb
  Author: Jeffrey Altman <jaltman at secure-endpoints.com>
  Date:   2015-04-11 (Sat, 11 Apr 2015)

  Changed paths:
    M lib/roken/rand.c
    M lib/roken/roken.h.in

  Log Message:
  -----------
  roken: use Win32 rand_s() for rk_random() when available

On Windows if the compiler and C RTL is >= 1400 then the rand_s()
function is available.  rand_s() unlike rand() makes use of the
RtlGenRandom() API to produce a random number between 0 and UINT_MAX.
If rand_s() is not available or fails, fallback to rand().

One of the benefits of rand_s() is that no initialization is required
so it will provide random output even if rk_random_init() is not called.

Change-Id: I2768155de744bd49604fc8237728bb205d637f2a