CVS log for src/sbin/ifconfig/env.c

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fix proplib deprecation

Update for proplib(3) API changes.

Mostly merge changes from HEAD upto 20200411

 Whitespace fix.

PR/50909: David Binderman: Optimize memset

PR/50909: David Binderman: Optimize memset

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

resync with head

Avoid dereferencing NULL.  Coverity CID 275201.
Also fix a typo in previous: !== should be !=

Don't call prop_distionary_make_immutable on a NULL pointer.
Coverity CID 275179.

Convert from the .ifdef RUMP_ACTION stuff to RUMPPRG.

Sync with HEAD.

Sync with wrstuden-revivesa-base-2.

Let us add/remove features from ifconfig, such as support for
various address families (inet, inet6, iso, atalk) and protocols
(802.11, 802.3ad, CARP), simply by trimming the list of sources in
the Makefile.  This helps one customize ifconfig for an embedded
device or for install media, and it eliminates a lot of grotty
#ifdef'age.  Now, the ifconfig syntax and semantics are finalized
at run-time using the constructor routines in each address-family/protocol
module.

(In principle, ifconfig could load virtually all of its syntax from
shared objects.)

Extract a lot of common code into subroutines, in order to shrink
the ifconfig binary a bit.  Make all of the address families share
code for address addition/replacement/removal, and delete "legacy"
code for manipulating addresses.  That may have broken atalk and
iso, despite my best efforts.

Extract an include file, Makefile.inc, containing the make-fu that
both ifconfig and x_ifconfig share.

Sprinkle static.  Change some int's to bool's.  Constify.

Add RCS Ids to carp.c and env.c.  Move media code to a new file,
media.c.  Delete several unneeded header files.

Set, reset, and display the IEEE 802.11 attribute, 'dot11RTSThreshold'.

Bug fix: do not require both a interface address and a destination
address for point-to-point interfaces, but accept a interface
address by itself.

Sync w/ -current. 34 merge conflicts to follow.

Sync with HEAD.

sync with head.

file env.c was added on branch mjf-devfs2 on 2008-06-02 13:21:22 +0000

file env.c was added on branch yamt-pf42 on 2008-05-18 12:30:53 +0000

Cosmetic: fix copyright whitespace.

Use the correct key.  Spotted by NONAKA Kimihiro.

Use prop_dictionary_util(3).

Add a license.

Overhaul ifconfig.  Use fewer global variables.  Take a leap toward
improved modularity and extensibility.

In the new architecture, a directed graph of argument-matching
objects (match objects) expresses the set of feasible ifconfig
statements.  Match objects are labelled by subroutines that provide
the statement semantics.

Many IPv4, IPv6, 802.11, tunnel, and media configurations have been
tested.

AppleTalk, ISO, carp(4), agr(4), and vlan(4) configuration need
testing.