Merge from head

Merge r278538 through r279514.

Merging ^/head r278916 through r279022.

MFH: r278593-r278966

Sponsored by: The FreeBSD Foundation

libc: clean some set-but-not-used errors.

These were found by gcc 5.0 on Dragonfly BSD, however I
made no attempt to silence the false positives.

Obtained from: DragonFly (cf515c3a6f3a8964ad592e524

libc: clean some set-but-not-used errors.

These were found by gcc 5.0 on Dragonfly BSD, however I
made no attempt to silence the false positives.

Obtained from: DragonFly (cf515c3a6f3a8964ad592e524442bc628f8ed63b)

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Merge head

IFC @264767

Merge head up to r262222 (last merge was incomplete).

MFC @ r259205 in preparation for some SVM updates. (for real this time)

Replace Sun RPC license in TI-RPC library with a 3-clause BSD license,
with the explicit permission of Sun Microsystems in 2009.

Update to current version of head.

MFC 204950,205020:
Use thr_once() with once_t controls to initialize various thread_key_t
objects used to provide per-thread storage in the RPC code. Almost all
of these used double-checking with a

MFC 204950,205020:
Use thr_once() with once_t controls to initialize various thread_key_t
objects used to provide per-thread storage in the RPC code. Almost all
of these used double-checking with a dedicated mutex (tsd_lock) to do this
before. However, that is not always safe with more relaxed memory orders.
There were also other bugs, such as one in __rpc_createrr() that caused a
new key to be allocated each time __rpc_createrr() was invoked.

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Use thr_once() with once_t controls to initialize various thread_key_t
objects used to provide per-thread storage in the RPC code. Almost all
of these used double-checking with a dedicated mutex (ts

Use thr_once() with once_t controls to initialize various thread_key_t
objects used to provide per-thread storage in the RPC code. Almost all
of these used double-checking with a dedicated mutex (tsd_lock) to do this
before. However, that is not always safe with more relaxed memory orders.
There were also other bugs, such as one in __rpc_createrr() that caused a
new key to be allocated each time __rpc_createrr() was invoked.

PR: threads/144558
Reported by: Sam Robb samrobb of averesystems com (key leak)
MFC after: 1 week

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Staticize a couple of functions.

Remove a few unused locks.

Remove locks from application namespace.

Try to bring some sanity to the SCM ID's.
+ spell LIBC_SCCS consistently
+ enable builds with LIBC_SCCS defined to not syntax error
+ minor SCM reformatting to try to have some consistency

Back out the `hiding' of strlcpy and strlcat. Several people
vocally objected to this safety belt.

`Hide' strlcpy and strlcat (using the namespace.h / __weak_reference
technique) so that we don't wind up calling into an application's
version if the application defines them.

Inspired by: qpopper's

`Hide' strlcpy and strlcat (using the namespace.h / __weak_reference
technique) so that we don't wind up calling into an application's
version if the application defines them.

Inspired by: qpopper's interfering and buggy version of strlcpy

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Spell void * as void * rather than caddr_t. This is complicated by the
fact that caddr_t is often misspelled as char *.

Sponsored by: DARPA, NAI Labs

Fix the style of the SCM ID's.
I believe have made all of libc .c's as consistent as possible.

Constify the first arg to callrpc(3).

Remove multi-line __P() usage.

Remove __P() usage.

Remove 'register' keyword.

Fix cc -Wall, fix rcsid warnings, add missing prototypes,
change prototypes to be the same as in the original sun tirpc code.
Remove ()P macro in a file where the mayority had ()P already removed.
Ad

Fix cc -Wall, fix rcsid warnings, add missing prototypes,
change prototypes to be the same as in the original sun tirpc code.
Remove ()P macro in a file where the mayority had ()P already removed.
Add them if the mayority use ()P macros.

Submitted by: mbr
Requested by: bde

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Add compatibility functions for the AF_LOCAL RPC transport stuff
that used to live in RPC 4.0. This is needed for yppasswd and
rpc.yppasswdd to work correctly. Patch supplied by Martin Blapp.