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 r318964 through r319164.

hostent_test_getaddrinfo_eq(..): call freeaddrinfo on `ai` when done

This plugs a leak of memory allocated via getaddrinfo.

MFC after: 1 week
Reported by: Coverity
CID: 1346866
Sponsored by: Dell

hostent_test_getaddrinfo_eq(..): call freeaddrinfo on `ai` when done

This plugs a leak of memory allocated via getaddrinfo.

MFC after: 1 week
Reported by: Coverity
CID: 1346866
Sponsored by: Dell EMC Isilon

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hostent_test_getnameinfo_eq(..): initialize found_a_host to false

MFC after: 1 week
Reported by: Coverity
CID: 1368943
Sponsored by: Dell EMC Isilon

Push `snapshot_file` copying down into run_tests function, and mark snapshot_file
const char *.

This fixes a bogus set of errors from gcc about strdup not being allowed a NULL
argument.

MFC after:

Push `snapshot_file` copying down into run_tests function, and mark snapshot_file
const char *.

This fixes a bogus set of errors from gcc about strdup not being allowed a NULL
argument.

MFC after: 1 week
Sponsored by: Dell EMC Isilon

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Fix -Wunused and -Wshadow warnings

MFC after: 3 days
Sponsored by: Dell EMC Isilon

gethostby_test: fix multiple warning types

- Fix -Wmissing-declaration warning by staticizing run_tests.
- Fix -Wsign-compare warnings by casting size_t types to int
for comparisons.

Reindent som

gethostby_test: fix multiple warning types

- Fix -Wmissing-declaration warning by staticizing run_tests.
- Fix -Wsign-compare warnings by casting size_t types to int
for comparisons.

Reindent some of the code in sdump_hostent(..) to accomodate the
overall changes.

MFC after: 3 days
Sponsored by: Dell EMC Isilon

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lib/libc/tests/nss: use calloc appropriately

The pattern used prior to this commit was `calloc(1, n * sizeof(type))`;
the pattern that should be used however is `calloc(n, sizeof(type))`.

MFC after

lib/libc/tests/nss: use calloc appropriately

The pattern used prior to this commit was `calloc(1, n * sizeof(type))`;
the pattern that should be used however is `calloc(n, sizeof(type))`.

MFC after: 3 days
Sponsored by: Dell EMC Isilon

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nss/gethostby_test: fix broken vector iteration of gethostbyaddr h_aliases

h_aliases is a NULL-terminated rather than fixed-length array. nitems() is not
a valid way to determine its end; instead,

nss/gethostby_test: fix broken vector iteration of gethostbyaddr h_aliases

h_aliases is a NULL-terminated rather than fixed-length array. nitems() is not
a valid way to determine its end; instead, check for NULL.

Reported by: Coverity
CID: 1346578
Sponsored by: EMC / Isilon Storage Division

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MFH r289384-r293170

Sponsored by: The FreeBSD Foundation

MFH @r292599

This includes the pluggable TCP framework and other chnages to the
netstack to track for VNET stability.

Security: The FreeBSD Foundation

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

- Convert the testcases to ATF
- Do some style(9) cleanups:
-- Sort headers
-- Apply indentation fixes
-- Re

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

- Convert the testcases to ATF
- Do some style(9) cleanups:
-- Sort headers
-- Apply indentation fixes
-- Remove superfluous parentheses
- Explicitly print out debug printfs for use with `kyua {debug,report}`; for
items that were overly noisy, they've been put behind #ifdef DEBUG
conditionals
- Fix some format strings

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

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