link_addr: be more strict about address formats

instead of accepting any character as a delimiter, only accept ':', '.'
and '-', and only permit a single delimiter in an address.

this prevents acce

link_addr: be more strict about address formats

instead of accepting any character as a delimiter, only accept ':', '.'
and '-', and only permit a single delimiter in an address.

this prevents accepting bizarre addresses like:

ifconfig epair2a link 10.1.2.200/28

... which is particularly problematic on an INET6-only system, in which
case ifconfig defaults to the 'link' family, meaning that:

ifconfig epair2a 10.1.2.200/28

... changes the Ethernet address of the interface.

bump __FreeBSD_version so link_addr() consumers can detect the change.

Reviewed by: kp, des
Approved by: des (mentor)
Differential Revision: https://reviews.freebsd.org/D49936

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libc: add link_ntoa_r()

this is a re-entrant version of link_ntoa. use an in-out parameter for
the buffer size, so the user requires at most two calls to determine the
needed size.

reimplement lin

libc: add link_ntoa_r()

this is a re-entrant version of link_ntoa. use an in-out parameter for
the buffer size, so the user requires at most two calls to determine the
needed size.

reimplement link_ntoa using link_ntoa_r with a static buffer.

Reviewed by: des
Approved by: des (mentor)
Differential Revision: https://reviews.freebsd.org/D50202

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lib: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl s

lib: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

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libc: Purge unneeded cdefs.h

These sys/cdefs.h are not needed. Purge them. They are mostly left-over
from the $FreeBSD$ removal. A few in libc are still required for macros
that cdefs.h defines. Kee

libc: Purge unneeded cdefs.h

These sys/cdefs.h are not needed. Purge them. They are mostly left-over
from the $FreeBSD$ removal. A few in libc are still required for macros
that cdefs.h defines. Keep those.

Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D42385

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Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

Merge ^/head r325999 through r326131.

General further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier f

General further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

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Merge ^/head r314420 through r314481.

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by: Jan Schaumann <jschauma@stevens.edu>
Pull Request: https://github.com/freebsd/freebsd/pull/96

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Merge ^/head r309519 through r309757.

Address regressions in SA-16:37.libc.

PR: 215105
Submitted by: <jtd2004a sbcglobal.net>

Fix possible buffer overflow(s) in link_ntoa(3).

A specially crafted sockaddr_dl argument can trigger a static buffer overflow
in the libc library, with possibility to rewrite with arbitrary data fo

Fix possible buffer overflow(s) in link_ntoa(3).

A specially crafted sockaddr_dl argument can trigger a static buffer overflow
in the libc library, with possibility to rewrite with arbitrary data following
static buffers that belong to other library functions.

Reviewed by: kib
Security: FreeBSD-SA-16:37.libc

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Merge from head

Sponsored by: Gandi.net

Merge from head

Merge from head

Sync up with head (up to r288341).

Merge ^/head r288035 through r288099.

Use ANSI C prototypes. Eliminates -Wold-style-definition warnings.

Merge from head@274682

IFC @r269962

Submitted by: Anish Gupta (akgupt3@gmail.com)

Sync to HEAD@r269943.

Const-ify character string

Obtained from: Apple Inc. (Libc 997.90.3)
MFC after: 3 days

Per Regents of the University of Calfornia letter, remove advertising
clause.

# If I've done so improperly on a file, please let me know.

Remove 'register' keyword.

Remove trailing whitespace.