[Heimdal-source-changes] [heimdal/heimdal] 848525: roken: Add memset_s implementation

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/heimdal/heimdal
  Commit: 84852509896abba2a98a35d1dff6deaf514a2d95
      https://github.com/heimdal/heimdal/commit/84852509896abba2a98a35d1dff6deaf514a2d95
  Author: Simon Wilkinson <sxw at your-file-system.com>
  Date:   2015-03-05 (Thu, 05 Mar 2015)

  Changed paths:
    M cf/roken-frag.m4
    M lib/roken/NTMakefile
    A lib/roken/memset_s.c
    M lib/roken/roken.h.in
    M lib/roken/version-script.map

  Log Message:
  -----------
  roken: Add memset_s implementation

Add an implementation of memset_s to roken.

Some optimising compilers may remove the memset() instruction when it
is used immediately before a free, which defeats its purpose if the
intention is to zero memory before returning it to the heap or stack.

C11 added memset_s, provide a fallback in roken so that memset_s can
be used on all platforms.