stdio: add test for 86a16ada1ea608408cec370: fflush() handling of errors

PR: 76398

(cherry picked from commit 72d5dedfa69fa74801d19dd17c49867882d73d97)

Add new gets_s(3) stdio function.

This implements the gets_s(3) function as documented at
http://en.cppreference.com/w/c/io/gets. It facilitates the
optional removal of gets(3).

Reviewed by: ed
MFC

Add new gets_s(3) stdio function.

This implements the gets_s(3) function as documented at
http://en.cppreference.com/w/c/io/gets. It facilitates the
optional removal of gets(3).

Reviewed by: ed
MFC after: 2 weeks
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D12785

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Merge ^/user/ngie/release-pkg-fix-tests to unbreak how test files are installed
after r298107

Summary of changes:

- Replace all instances of FILES/TESTS with ${PACKAGE}FILES. This ensures that
na

Merge ^/user/ngie/release-pkg-fix-tests to unbreak how test files are installed
after r298107

Summary of changes:

- Replace all instances of FILES/TESTS with ${PACKAGE}FILES. This ensures that
namespacing is kept with FILES appropriately, and that this shouldn't need
to be repeated if the namespace changes -- only the definition of PACKAGE
needs to be changed
- Allow PACKAGE to be overridden by callers instead of forcing it to always be
`tests`. In the event we get to the point where things can be split up
enough in the base system, it would make more sense to group the tests
with the blocks they're a part of, e.g. byacc with byacc-tests, etc
- Remove PACKAGE definitions where possible, i.e. where FILES wasn't used
previously.
- Remove unnecessary TESTSPACKAGE definitions; this has been elided into
bsd.tests.mk
- Remove unnecessary BINDIRs used previously with ${PACKAGE}FILES;
${PACKAGE}FILESDIR is now automatically defined in bsd.test.mk.
- Fix installation of files under data/ subdirectories in lib/libc/tests/hash
and lib/libc/tests/net/getaddrinfo
- Remove unnecessary .include <bsd.own.mk>s (some opportunistic cleanup)

Document the proposed changes in share/examples/tests/tests/... via examples
so it's clear that ${PACKAGES}FILES is the suggested way forward in terms of
replacing FILES. share/mk/bsd.README didn't seem like the appropriate method
of communicating that info.

MFC after: never probably
X-MFC with: r298107
PR: 209114
Relnotes: yes
Tested with: buildworld, installworld, checkworld; buildworld, packageworld
Sponsored by: EMC / Isilon Storage Division

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First pass to fix the 'tests' packages.

Sponsored by: The FreeBSD Foundation

Fix LDADD/DPADD that should be LIBADD.

Sponsored by: EMC / Isilon Storage Division

Disable -Wformat with scanfloat_test when compiling with gcc to avoid a
"use of assignment suppression and length modifier together in scanf format"
warning on line 90 (it's intentional)

MFC after:

Disable -Wformat with scanfloat_test when compiling with gcc to avoid a
"use of assignment suppression and length modifier together in scanf format"
warning on line 90 (it's intentional)

MFC after: 1 week
X-MFC with: r290537, r290856, r290860
Sponsored by: EMC / Isilon Storage Division

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printfloat_test and scanfloat_test need symbols from msun; these are automatically
provided on amd64, but not i386. Add libm to DPADD/LDADD to unbreak the i386
tinderbox

Pointyhat to: ngie
MFC after

printfloat_test and scanfloat_test need symbols from msun; these are automatically
provided on amd64, but not i386. Add libm to DPADD/LDADD to unbreak the i386
tinderbox

Pointyhat to: ngie
MFC after: 1 week
X-MFC with: r290538
Sponsored by: EMC / Isilon Storage Division

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Integrate tools/regression/lib/libc/stdio into the FreeBSD test suite
as lib/libc/tests/stdio

- Fix some whitespace
- Convert the testcases to ATF
- Convert "/dev/null" to _PATH_DEVNULL

MFC after:

Integrate tools/regression/lib/libc/stdio into the FreeBSD test suite
as lib/libc/tests/stdio

- Fix some whitespace
- Convert the testcases to ATF
- Convert "/dev/null" to _PATH_DEVNULL

MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division

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Refactor the test/ Makefiles after recent changes to bsd.test.mk (r289158) and
netbsd-tests.test.mk (r289151)

- Eliminate explicit OBJTOP/SRCTOP setting
- Convert all ad hoc NetBSD test integration

Refactor the test/ Makefiles after recent changes to bsd.test.mk (r289158) and
netbsd-tests.test.mk (r289151)

- Eliminate explicit OBJTOP/SRCTOP setting
- Convert all ad hoc NetBSD test integration over to netbsd-tests.test.mk
- Remove unnecessary TESTSDIR setting
- Use SRCTOP where possible for clarity

MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Divison

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Convert tools/regression/lib/libc/stdio/test-fmemopen into an ATF testcase and
rename as lib/libc/stdio/fmemopen2_test

Sponsored by: EMC / Isilon Storage Division

Add reachover Makefiles for contrib/netbsd-tests/lib/libc; this adds approximately
500 new testcases

Various TODOs have been sprinkled around the Makefiles for items that even need
to be ported (mis

Add reachover Makefiles for contrib/netbsd-tests/lib/libc; this adds approximately
500 new testcases

Various TODOs have been sprinkled around the Makefiles for items that even need
to be ported (missing features), testcases have issues with building/linking, or
issues at runtime.

A variant of this code has been tested extensively on amd64 and i386
10-STABLE/11-CURRENT for several months without issue. It builds on other
architectures, but the code will remain off until I have prove it works on
virtual hardware or real hardware on other architectures

In collaboration with: pho, Casey Peel <[email protected]>
Sponsored by: EMC / Isilon Storage Division

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