Fix lib/libc/nss/getgr_test with large numbers of groups

These tests create a linked list with one entry for every group on the
running system. On a system with about 30,000 groups, the test took 6

Fix lib/libc/nss/getgr_test with large numbers of groups

These tests create a linked list with one entry for every group on the
running system. On a system with about 30,000 groups, the test took 69
seconds to run, and crashed Kyua with the below error:

kyua: E: string or blob too big (sqlite op: sqlite3_bind_blob) (sqlite db: /root/.kyua/store/results.usr_tests.20241231-203317-570235.db).

Fix the test by limiting it to operating on the first 1024 groups.
Apply the same change to getpw_test and getserv_test too, which are
vulnerable to the same problem.

MFC after: 2 weeks
Sponsored by: ConnectWise
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D48275

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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 r353316 through r353350.

Fix various -Wpointer-compare warnings

This warning (comparing a pointer against a zero character literal
rather than NULL) has existed since GCC 7.1.0, and was recently added to
Clang trunk.

Almos

Fix various -Wpointer-compare warnings

This warning (comparing a pointer against a zero character literal
rather than NULL) has existed since GCC 7.1.0, and was recently added to
Clang trunk.

Almost all of these are harmless, except for fwcontrol's str2node, which
needs to both guard against dereferencing a NULL pointer (though in
practice it appears none of the callers will ever pass one in), as well
as ensure it doesn't parse the empty string as node 0 due to strtol's
awkward interface.

Submitted by: James Clarke <jtrc27@jrtc27.com>
Obtained from: CheriBSD
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D21914

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Merge ^/head r318964 through r319164.

getserv_test: mark unused parameters __unused to fix corresponding
warnings

MFC after: 3 days
Sponsored by: Dell EMC Isilon

getserv_test: fix -Wsign-compare and -Wmissing-prototypes warnings

MFC after: 3 days
Sponsored by: Dell EMC Isilon

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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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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