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Kyle Evans af74661403 ifconfig(8): Attempt to render non-printable sequences w/ UTF-8 Environment
Currently ifconfig(8) only prints the hex representation of ssid names
with non-ASCII characters. Many modern terminals are able to properly render
non-ASCII characters. This change checks if the terminal charmap is UTF-8,
and if so, will render the characters, rather than the hex value.

This behavior is circumvented by running ifconfig(8) in a non-UTF8 locale;
e.g. C or POSIX.

It was pointed out by kp@ during the review that APs have the option to
broadcast whether their SSIDs may be interpreted as UTF-8. Ideally, we would
honor this and only attempt this behavior if it's so-broadcasted by the AP.

However, a sample survey showed that hostapd will advertise this if
indicated in config but it doesn't seem to be so common in the AP market, so
this would be effectively useless as we'll rarely know if the SSID should be
renderable as UTF-8.

Despite this, it was decided to be OK with this anyways- there's a
straightforward path to doing it the right way based on advertisement by AP
if we need to go that route, and one can revert to old behavior easily
enough at runtime if we get it wrong.

Submitted by:	Farhan Khan <khanzf@gmail.com>
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D15922
2018-06-28 03:37:15 +00:00
bin Stop building intermediate .o files. 2018-06-27 21:36:49 +00:00
cddl The IP, TCP, and UDP provider report IP addresses as strings. 2018-06-18 18:35:29 +00:00
contrib Fix GCC 4.2.1 to honor --sysroot for includes. 2018-06-27 18:14:33 +00:00
crypto Merge upstream patch to unbreak tunnel forwarding. 2018-05-16 14:04:39 +00:00
etc geli attach multiple providers 2018-06-26 18:07:16 +00:00
gnu Don't use CCACHE for linking. 2018-06-27 19:29:15 +00:00
include Add time2posix and posix2time to time.h 2018-05-25 13:40:05 +00:00
kerberos5 various: general adoption of SPDX licensing ID tags. 2017-11-27 15:37:16 +00:00
lib Don't use CCACHE for linking. 2018-06-27 19:29:15 +00:00
libexec Make rtld use libc_nossp_pic.a. Remove SSP shims. 2018-05-09 10:30:56 +00:00
release Chase the pwd_mkdb endian changes. 2018-06-27 19:10:32 +00:00
rescue Avoid referencing private lib names directly. 2017-11-10 07:53:02 +00:00
sbin ifconfig(8): Attempt to render non-printable sequences w/ UTF-8 Environment 2018-06-28 03:37:15 +00:00
secure Upgrade to OpenSSH 7.7p1. 2018-05-11 13:22:43 +00:00
share LLVM_TARGET_ALL: Default LLVM_TARGET_ARM on for aarch64. 2018-06-27 21:36:57 +00:00
stand Don't use CCACHE for linking. 2018-06-27 19:29:15 +00:00
sys Check the inp_flags under inp lock. Looks like the race was hidden 2018-06-27 22:01:59 +00:00
targets Normalize the g(eom,cache,part,...) build. 2018-06-25 19:55:15 +00:00
tests audit(4): fix Coverity issues 2018-06-27 15:28:09 +00:00
tools Push users towards LLVM_TARGET_ALL. 2018-06-27 17:13:36 +00:00
usr.bin Don't use CCACHE for linking. 2018-06-27 19:29:15 +00:00
usr.sbin powerd: correct ifdef check for ppc 2018-06-27 01:28:09 +00:00
.arcconfig callsign isn't required anymore 2016-09-29 06:19:45 +00:00
.arclint arc lint: ignore /tests/ in chmod 2017-12-19 03:38:06 +00:00
.gitattributes .git*: add gitattributes and gitignore 2017-12-25 21:07:54 +00:00
.gitignore .git*: add gitattributes and gitignore 2017-12-25 21:07:54 +00:00
COPYRIGHT Remove 'All Rights Reserved' from the collection copyright and templates. 2018-05-09 02:02:49 +00:00
LOCKS LOCKS: update current locks 2018-06-09 03:08:04 +00:00
MAINTAINERS Pass on bhyve kernel module maintenance to 2018-06-10 04:25:19 +00:00
Makefile Fix typo in top-level Makefile 2018-06-27 22:15:50 +00:00
Makefile.inc1 Chase the pwd_mkdb endian changes. 2018-06-27 19:10:32 +00:00
Makefile.libcompat Reduce exec and fstat overhead for non-build targets. 2018-06-20 17:20:39 +00:00
Makefile.sys.inc AUTO_OBJ: For all top-level targets enforce using an OBJDIR. 2017-12-05 21:29:47 +00:00
ObsoleteFiles.inc Correct path to removed asf(8) binary. 2018-06-20 19:22:33 +00:00
README README: add generic notes about GENERIC and NOTES 2018-06-17 19:44:24 +00:00
README.md README: add generic notes about GENERIC and NOTES 2018-06-17 19:44:24 +00:00
UPDATING Use the 'Updating from Source' Handbook section in UPDATING. 2018-06-26 14:30:33 +00:00

FreeBSD Source:

This is the top level of the FreeBSD source directory. This file was last revised on: FreeBSD

FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.

For copyright information, please see the file COPYRIGHT in this directory. Additional copyright information also exists for some sources in this tree - please see the specific source directories for more information.

The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7), config(8), https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html, and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information, including setting make(1) variables.

Source Roadmap:

bin		System/user commands.

cddl		Various commands and libraries under the Common Development
		and Distribution License.

contrib		Packages contributed by 3rd parties.

crypto		Cryptography stuff (see crypto/README).

etc		Template files for /etc.

gnu		Various commands and libraries under the GNU Public License.
		Please see gnu/COPYING* for more information.

include		System include files.

kerberos5	Kerberos5 (Heimdal) package.

lib		System libraries.

libexec		System daemons.

release		Release building Makefile & associated tools.

rescue		Build system for statically linked /rescue utilities.

sbin		System commands.

secure		Cryptographic libraries and commands.

share		Shared resources.

stand		Boot loader sources.

sys		Kernel sources.

sys/<arch>/conf Kernel configuration files. GENERIC is the configuration
		used in release builds. NOTES contains documentation of
		all possible entries.

tests		Regression tests which can be run by Kyua.  See tests/README
		for additional information.

tools		Utilities for regression testing and miscellaneous tasks.

usr.bin		User commands.

usr.sbin	System administration commands.

For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see:

https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/current-stable.html