git: Add proper const keywords to sysctl(3) parameters.

[Sascha Wildner]

commit 00f0918d338a0f863b786ed4565f12971eaecdc8
Author: Alexandre Perrin <alex at kaworu.ch>
Date:   Fri Nov 22 19:48:23 2013 +0100

    Add proper const keywords to sysctl(3) parameters.
    
      Import some sysctl(3) patches from FreeBSD.
    
      - r204170 change the sysctl(3) and sysctlbyname(3) interfaces so they
        are in sync with FreeBSD and NetBSD.
      - r240176 Avoid a potential segfault in libc when the `name' argument
        is invalid.
      - r204172 & r244153 are cosmetics changes.
    
      Here follow the commit message from r204170 and r240176:
    
      - r204170: Add proper const keywords to sysctl(3) parameters.
    
      The `name' and `newp' arguments can be marked const, because the
      buffers
      they refer to are never changed. While there, perform some other
      cleanups:
    
      * Implement sysctlbyname() using sysctlnametomib() to prevent
        duplication of an undocumented kernel interface.
      * Fix some whitespace nits.
    
      - r240176: Avoid segfault if name is invalid.
    
      Basically, only check for CTL_USER if the sysctl fails with ENOENT.

Summary of changes:
 lib/libc/gen/sysctl.3          |  7 +++----
 lib/libc/gen/sysctl.c          | 18 ++++++++++--------
 lib/libc/gen/sysctlbyname.c    | 26 +++++++-------------------
 lib/libc/gen/sysctlnametomib.c |  9 ++++-----
 sys/sys/sysctl.h               |  6 +++---
 5 files changed, 27 insertions(+), 39 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/00f0918d338a0f863b786ed4565f12971eaecdc8


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