bin: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remov

bin: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by: Netflix

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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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Integrate from Head into ZFSD feature branch as of revision r224141.

IFC @ r223696 to pick up dfr's userboot

MFC

Make ``realpath'' behave like ``realpath .''.

Enhance realpath(1) in a number of ways:

- Allow realpath to accept multiple paths on the command line.
- Add -q to suppress warnings if some paths can't be processed, and use
getopt(3) to process

Enhance realpath(1) in a number of ways:

- Allow realpath to accept multiple paths on the command line.
- Add -q to suppress warnings if some paths can't be processed, and use
getopt(3) to process flags.
- Print the path being requested rather than a possibly partially
processed path when a failure occurs so that you can tell which of
several passed paths did fail.

MFC after: 1 week
PR: 112920
Submitted by: Ighighi <ighighi@gmail.com>

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Remove clause 3 from the UCB licenses.

OK'ed by: imp, core

realpath(3) should use PATH_MAX instead of MAXPATHLEN according to POSIX.

This also reverts the PATH_MAX -> MAXPATHLEN part of
rev 1.3 of src/bin/realpath/realpath.c

Requested by: imp
Reviewed by:

realpath(3) should use PATH_MAX instead of MAXPATHLEN according to POSIX.

This also reverts the PATH_MAX -> MAXPATHLEN part of
rev 1.3 of src/bin/realpath/realpath.c

Requested by: imp
Reviewed by: imp, bde

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Remove undocumented behavior (return current work dir if no path
is given as argument) that is not present in 4-Stable.
It was introduced when realpath(1) was split out of pwd(1).
The removed behavio

Remove undocumented behavior (return current work dir if no path
is given as argument) that is not present in 4-Stable.
It was introduced when realpath(1) was split out of pwd(1).
The removed behavior is provided by pwd(1).

Reviewed by: mike

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- use MAXPATHLEN per realpath(3)
- use the problematic part of the path, instead of the argument,
when reporting an error.

Reviewed by: mike

Check the return value of getcwd() to avoid printf()ing a NULL. Mark
usage() as __dead2 to avoid a GCC warning.

Spotted by: keramida

Move the realpath(1) source into its own directory. Previously, it
shared sources with pwd(1).

Enhance realpath(1) in a number of ways:

- Allow realpath to accept multiple paths on the command line.
- Add -q to suppress warnings if some paths can't be processed, and use
getopt(3) to process

Enhance realpath(1) in a number of ways:

- Allow realpath to accept multiple paths on the command line.
- Add -q to suppress warnings if some paths can't be processed, and use
getopt(3) to process flags.
- Print the path being requested rather than a possibly partially
processed path when a failure occurs so that you can tell which of
several passed paths did fail.

MFC after: 1 week
PR: 112920
Submitted by: Ighighi <ighighi@gmail.com>

show more ...

Remove clause 3 from the UCB licenses.

OK'ed by: imp, core

realpath(3) should use PATH_MAX instead of MAXPATHLEN according to POSIX.

This also reverts the PATH_MAX -> MAXPATHLEN part of
rev 1.3 of src/bin/realpath/realpath.c

Requested by: imp
Reviewed by:

realpath(3) should use PATH_MAX instead of MAXPATHLEN according to POSIX.

This also reverts the PATH_MAX -> MAXPATHLEN part of
rev 1.3 of src/bin/realpath/realpath.c

Requested by: imp
Reviewed by: imp, bde

show more ...

Remove undocumented behavior (return current work dir if no path
is given as argument) that is not present in 4-Stable.
It was introduced when realpath(1) was split out of pwd(1).
The removed behavio

Remove undocumented behavior (return current work dir if no path
is given as argument) that is not present in 4-Stable.
It was introduced when realpath(1) was split out of pwd(1).
The removed behavior is provided by pwd(1).

Reviewed by: mike

show more ...

- use MAXPATHLEN per realpath(3)
- use the problematic part of the path, instead of the argument,
when reporting an error.

Reviewed by: mike

Check the return value of getcwd() to avoid printf()ing a NULL. Mark
usage() as __dead2 to avoid a GCC warning.

Spotted by: keramida

Move the realpath(1) source into its own directory. Previously, it
shared sources with pwd(1).