CI: improvements in test reliability and performance

- CI default: raise parallelism to 20
- CI valgind: set parallelism to 6
- CI non-native: adapt parallelism for OS builds
- C

CI: improvements in test reliability and performance

- CI default: raise parallelism to 20
- CI valgind: set parallelism to 6
- CI non-native: adapt parallelism for OS builds
- CI Windows: no longer ignore FTP, TFTP, MQTT and SMTP
- CI Windows: restrict test timeout to 10 minutes
- CI Windows: do not run tests for msh3 build
- tests, various: restrict curl invocation to ipv4 to avoid talking to
any ipv6 test server running in parallel
- tests: requiring http/2 server no longer needs to mention http server
- test 190: use a fixed timeout of 10 seconds instead of %FTPTIME2, as
that value rises under parallel load beyond what the server is waiting
and then produces different results
- test 1540: add debug logging
- testrunner: add verify checks for http/2 and http/3 server

Closes #15040

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lib: fix disabled-verbose-strings + enable-debug build warnings

WebSockets: make support official (non-experimental)

Inverts the configure/cmake options to instead provide options that
disable WebSockets and have them (ws + wss) enabled by default.

WebSockets: make support official (non-experimental)

Inverts the configure/cmake options to instead provide options that
disable WebSockets and have them (ws + wss) enabled by default.

Closes #14936

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codespell: extend checks to more subdirs

- fix issues found.
- fix a few more found locally.

Closes #15072

GHA/torture: prefer pip `--break-system-packages` for speed

Follow-up to c5e3d8ba94791dbc51f98a56ce07b3ba6b0aa446 #14972

Closes #15071

singleuse: make `git grep` faster, add Apple `nm` support

- avoid regexp in grep to make it run faster.
- add support for parsing Apple `nm` output:
- skip leading underscore from

singleuse: make `git grep` faster, add Apple `nm` support

- avoid regexp in grep to make it run faster.
- add support for parsing Apple `nm` output:
- skip leading underscore from function names.
- pick object name from output.

Closes #15070

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GHA/http3-linux: add name to align with other Linux workflows

Closes #15069

RELEASE-NOTES: synced

GHA/linux: improve cmake use, switch to Ninja

- cmake: allow easy switching of generator (= make tool).
- merge autotools/cmake job steps.
- cmake: switch to Ninja.
(build was

GHA/linux: improve cmake use, switch to Ninja

- cmake: allow easy switching of generator (= make tool).
- merge autotools/cmake job steps.
- cmake: switch to Ninja.
(build was already fast, Ninja doesn't make it noticeably faster)

Closes #15023

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multi: avoid reading whole struct pointer from pointer

The proper alignment is not guaranteed. This function now instead uses
only the first and last byte of the key since they are the o

multi: avoid reading whole struct pointer from pointer

The proper alignment is not guaranteed. This function now instead uses
only the first and last byte of the key since they are the ones likely
to change most (one of them, depending on CPU endian) and the hash is
tiny anyway.

Closes #15063

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tests: use '-4' where needed

Our test servers run either on ipv4 *or* on ipv6, as requested.
A test case using 'localhost' or '*.local' in the url needs to
run with the specific vers

tests: use '-4' where needed

Our test servers run either on ipv4 *or* on ipv6, as requested.
A test case using 'localhost' or '*.local' in the url needs to
run with the specific version of the server started.

Otherwise, curl's "happy eyeball"ing will connect to another
server that may be running due to parallel testing or for some
other reasons.

Note that port reuse here depends on the OS strategy and it
seems netbsd is especially likely to hit this.

Closes #15060

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tests: improve mqtt server handling

Check that the mqtt server process actually is running.
Handle its port number similar to other servers.

Closes #15059

tests: check http/2 and http/3 server responsiveness

Check responsiveness of http/3 server when running.

Also, a test case with http/2 or http/3 server requirement
now implicitl

tests: check http/2 and http/3 server responsiveness

Check responsiveness of http/3 server when running.

Also, a test case with http/2 or http/3 server requirement
now implicitly drags in a 'http' server and we need no longer
mention that in testdata.

Closes #15058

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test190: replace %FTPTIME2 with a fixed value

The variable FTPTIME2 may, on a loaded test server, become so
large that the timeout does not happen before the fixed 60 seconds
the ser

test190: replace %FTPTIME2 with a fixed value

The variable FTPTIME2 may, on a loaded test server, become so
large that the timeout does not happen before the fixed 60 seconds
the server waits.

Closes #15056

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tests: remove the %FTPTIME3 variable

Nothing uses it.

Ref: #15056
Closes #15064

socks_gssapi: switch to dynbuf from buffer with strcpy

Closes #15057

tests: add file: tests with existing files

Windows sometimes has issues when opening the same file twice, so these
test two situations where that could potentially occur.

Report

tests: add file: tests with existing files

Windows sometimes has issues when opening the same file twice, so these
test two situations where that could potentially occur.

Reported-by: ralfjunker on github
Ref: #15043
Closes #15045

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test518: restore valgrind disable

Follow-up to c91c37b6e87c

The test does not work well when run with valgrind

Closes #15062

openssl: convert a memcpy to dynbuf use

and avoid an alloc for CN handling unless necessary

Closes #15049

test1540: add debug logging

Closes #15055

test504: fix handling on pending connect

Test expected a connect to a port no one is listening to immediately
fail. But Windows has its internal retry logic that may fail this.

test504: fix handling on pending connect

Test expected a connect to a port no one is listening to immediately
fail. But Windows has its internal retry logic that may fail this.

As fix, multi_perform()/multi_wait() until transfer is done.

Closes #15054

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test2502: add libtest debug tracing

Closes #15053

testrun: explicitly set proper IP address for stunnel listen/connect

Closes #15051

lib/cw-out: initialize 'flush_all' directly

Closes #15044

test1035: convert host name back to utf8 as should be

Follow-up to 0b70b23ef4d00

Closes #15050