usr.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.

R

usr.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/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

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various: general adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error

various: general adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

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.

No functional change intended.

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Merge ^/head r317808 through r317970.

csplit(1): Fix extraneous output in edge case

When the input to csplit contains fewer lines than the number of matches
specified, extra output was mistakenly included in some output files.

Fix the

csplit(1): Fix extraneous output in edge case

When the input to csplit contains fewer lines than the number of matches
specified, extra output was mistakenly included in some output files.

Fix the bug and add a simple ATF regression test.

PR: 219024
Submitted by: J.R. Oldroyd <fbsd at opal.com>

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Merge ^/head r317503 through r317807.

csplit: Fix check of fputs() return value, making csplit work again.

As of r295638, fputs() returns the number of bytes written (if not more than
INT_MAX). This broke csplit completely, since csplit

csplit: Fix check of fputs() return value, making csplit work again.

As of r295638, fputs() returns the number of bytes written (if not more than
INT_MAX). This broke csplit completely, since csplit assumed only success
only for the return value 0.

PR: 213510
Submitted by: J.R. Oldroyd
MFC after: 1 week
Relnotes: yes

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Rename getline with get_line to avoid collision with getline(3)

When getline(3) in 2009 was added a _WITH_GETLINE guard has also been added.
This rename is made in preparation for the removal of thi

Rename getline with get_line to avoid collision with getline(3)

When getline(3) in 2009 was added a _WITH_GETLINE guard has also been added.
This rename is made in preparation for the removal of this guard

Obtained from: NetBSD

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IFC @230489 (pending review).

IFC @ r227804

Pull in the virtio drivers from head.

Add missing static keywords to csplit(1)

Use fseeko() to properly support large files.

Use errc().

The return value of snprintf should be always nonnegative, so it should
be safe to cast it to a size_t before comparing it to a sizeof().

Use sigaction(2) instead of signal(3) to avoid the signal handler being
re-entered.

Avoid truncating filenames with snprintf().

Respect LC_CTYPE and LC_COLLATE environment variables, mainly for their
effects on regular expressions. The libc regex code does not handle
equivalence classes well (for example), but we do our best.

Handle the case where a negative offset in a regular expression match
is larger than the number of lines in the overflow file.

Correct synopsis and usage(): pattern arguments are not optional.

Add the csplit(1) utility, which splits files based on context, as specified
by SUSv3.

PR: 36191
Reviewed by: mike

Use fseeko() to properly support large files.

Use errc().

The return value of snprintf should be always nonnegative, so it should
be safe to cast it to a size_t before comparing it to a sizeof().

Use sigaction(2) instead of signal(3) to avoid the signal handler being
re-entered.