Commit graph

62 commits

Author SHA1 Message Date
Viktor Szakats
5df6c95d1b
or higher -> or greater 11 docs 2026-06-13 00:09:22 +02:00
Viktor Szakats
1d5dc6d2f9
or later -> higher 2026-06-13 00:09:04 +02:00
Viktor Szakats
952b04474c
tidy-up: miscellaneous
- badwords: replace stray synonyms with 'null-terminator'.
- tests/FILEFORMAT.md: tidy up feature descriptions.
- printf: replace stray `%i` masks with `%d` for consistency.
- pytest: add comments for empty excepts to try silencing GitHub CodeQL
  warnings.
- tool1394, unit1675: merge nested `if`s.
- dnscache: fix typo in comment.
- fix whitespace, indent and newlines.

Closes #21921
2026-06-09 11:07:55 +02:00
Viktor Szakats
cdce2460b3
runtests: allow skipping tests on torture, use for test 357
Some tests may take a long time in torture mode. Make it possible
to skip individual tests when runtests in running in torture mode.

Also:
- skip test 357 for the reason above.
  Saved 1-3 minutes for the Linux CI torture job, 1-1.5m on Windows.
  No savings on macOS.

Reported-by: Stefan Eissing
Fixes #21873

Closes #21906
2026-06-08 13:26:31 +02:00
Viktor Szakats
f1a6f190a6
badwords: prefer 'workaround' (without hyphen)
Closes #21807
2026-05-31 22:05:54 +02:00
Aritra Basu
e78b1b3ecc
HTTP/3: add proxy CONNECT and MASQUE CONNECT-UDP support (ngtcp2 QUIC)
This patch adds two major proxy capabilities to curl (ngtcp2 QUIC):
- HTTP/3 Proxy CONNECT: Tunnel HTTP/1.1 or HTTP/2 traffic through an
  HTTPS proxy that speaks HTTP/3 (QUIC) using the standard CONNECT
  method over an HTTP/3 connection.
- MASQUE CONNECT-UDP: Tunnel HTTP/3 (QUIC) traffic through an HTTP
  proxy (speaking HTTP/1.1, HTTP/2, or HTTP/3) using the extended
  CONNECT method with the CONNECT-UDP protocol (RFC9297 & RFC9298).

Public API additions:
- `CURLPROXY_HTTPS3`: new proxy type constant for HTTP/3 proxy
- `--proxy-http3`: new CLI flag to negotiate HTTP/3 with HTTPS proxy

The implementation adds two new filters:
- `H3-PROXY` - enables negotiating HTTP/3 (QUIC) to the proxy and
  running CONNECT/CONNECT-UDP through that proxy transport.
- `CAPSULE` - dedicated filter inserted between QUIC transport and
  HTTP-PROXY to handle datagram capsule encapsulation/decapsulation.

Here is how the curl filter chaining looks in different scenarios:
- HTTP/3 Proxy CONNECT (tunneling TCP protocols over QUIC proxy):
  conn -> HTTP/1.1 or HTTP/2  -> SSL -> HTTP-PROXY ->
                                 H3-PROXY -> HAPPY-EYEBALLS -> UDP
- MASQUE CONNECT-UDP (tunneling QUIC over any proxy):
  conn -> HTTP/3 -> CAPSULE -> HTTP-PROXY -> H3-PROXY ->
                               HAPPY-EYEBALLS -> UDP
  conn -> HTTP/3 -> CAPSULE -> HTTP-PROXY -> H1-PROXY or H2-PROXY ->
                               SSL -> HAPPY-EYEBALLS -> TCP

- Both features currently require the ngtcp2 QUIC backend.
- Both features are experimental (disabled by default). Enable with
  `--enable-proxy-http3`(autotools) or `-DUSE_PROXY_HTTP3=ON`(CMake).

Tests:
- tests/unit/unit3400.c: Unit tests for capsule protocol encode/decode
- tests/http/test_60_h3_proxy.py: Comprehensive pytest integration suite
- tests/http/testenv/h2o.py: Managing h2o instances with HTTP/1.1, HTTP/2,
  and HTTP/3 (QUIC) listeners, proxy.connect and proxy.connect-udp enabled.

References:
  RFC 9297 - HTTP Datagrams and the Capsule Protocol
  RFC 9298 - Proxying UDP in HTTP
  RFC 9000 §16 — Variable-Length Integer Encoding

Signed-off-by: Aritra Basu <aritrbas+gh@cisco.com>

Closes #21153
2026-05-27 08:49:53 +02:00
Viktor Szakats
1fb734bc2d
docs: tidy-up scheme references
After this patch `://` schemes are lowercase and enclosed in backticks.

Also:
- docs/libcurl/libcurl-multi.md: drop a stray C code fence.
- docs/libcurl/libcurl-tutorial.md: replace single/double quotes with
  Markdown markup where applicable.

Ref: #21646

Closes #21674
2026-05-19 16:55:45 +02:00
Viktor Szakats
0f47ddc0a9
build: stop building and installing runtests.1 and testcurl.1
The corresponding tools are never installed, and both are dev tools.
Refer to their `.md` originals instead.

Also markdownify text in lines nearby.

Ref: https://github.com/curl/curl/pull/21460#issuecomment-4328258450

Closes #21461
2026-04-28 09:07:27 +02:00
Daniel Stenberg
2f37943406
tests: drop support for the hex="yes" option in getpart
The remaining datacheck sections using this for MQTT tests were not
actually used anyway!

Closes #21428
2026-04-24 10:42:34 +02:00
Daniel Stenberg
779bba2f3f
runtests: allow %EMPTY in <stdout> to verify no output 2026-04-21 17:22:11 +02:00
Viktor Szakats
acda4eae5e
runtests: allow configuring SSH host/client key algorithm
via env `CURL_TEST_SSH_KEYALGO`, `rsa` (default), `ecdsa`, `ed25519`.

To ease debugging and testing and to make these code paths more
universal.

Closes #21223
2026-04-05 11:19:42 +02:00
Dan Fandrich
bae6237c45 docs: list more dependencies for running Python HTTP tests
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
Reviewed-by: Viktor Szakats <commit@vsz.me>
Closes #21110
2026-03-30 21:54:39 -07:00
Daniel Stenberg
e1fdbdd16f
hsts: when a dupe host adds subdomains, use that
Otherwise a weaker earlier entry is allowed to override a later more
restrictive one.

Add test 1638 to verify.

Closes #21108
2026-03-26 23:27:24 +01:00
Daniel Stenberg
1a4d392046
docs: minor wording tweaks
found when improving the badwords whitelisting logic
2026-03-11 08:46:01 +01:00
Felipe Mesquita
f25124338c
badwords: avoid 'simply'
It's mostly a filler word. I've read through each use of it in the code
base and did minor rephrasings when "simply" carried some meaning. The
overwhelming majority of cases, removing it improved the text
significantly. Inspired by #20793.

Closes #20822
2026-03-10 19:34:06 +01:00
Viktor Szakats
ccba492024
tidy-up: miscellaneous
Closes #20851
2026-03-09 11:35:19 +01:00
Daniel Stenberg
2f8fe96d6d
tests/FILEFORMAT.md: the <server> section is NOT mandatory
It can be left out if no servers are necessary.

Closes #20845
2026-03-07 14:21:46 +01:00
Daniel Stenberg
1495489c41
docs: drop basically
Another filler word

Closes #20835
2026-03-07 10:58:36 +01:00
Daniel Stenberg
b4dba346cd
stop using the word 'just'
Everywhere. In documentation and code comments.

It is almost never a good word and almost always a filler that should be
avoided.

Closes #20793
2026-03-03 15:30:22 +01:00
Florian Imdahl
006f561f6e
docs: some nitpicks
- replaced double spaces with single space where applicable
- replaced "favourite" with "favorite"
- added language identifiers to code blocks in markdown files
- added extra line after code blocks and after headings in markdown
  files

Cloes #20748
2026-02-27 23:05:37 +01:00
Daniel Stenberg
8e3a2a64d1
tool: improve config error messaging
- make sure that errors for specific options in config files identify
  the file, line number and shows the error about the correct option

- improve some error message wording

- add warning for leading single quote of arguments in config files
  (verified in test 1712)

- adjust test error outputs accordingly

test1712 introduces mode=warn

Use the mode="warn" attribute if the output curl warning output, as it
then makes the check without newlines and the prefix to better handle
that the lines may wrap at different points depending on the lengths of
the lines and terminal width.

Fixes #20598
Closes #20666
2026-02-22 14:56:07 +01:00
Viktor Szakats
b81341e8f5
tidy-up: Markdown, clang-format nits
- drop leading indent from Markdown.
- switch to Markdown section markers where missing.
- move `&&` and `||` to the end of the line (C, Perl).
- openssl: add parenthesis to an if sub-expression.
- misc clang-format nits.
- unfold Markdown links.
- SSL-PROBLEMS.md: drop stray half code-fence.

Closes #20402
2026-01-22 23:44:47 +01:00
Viktor Szakats
2d5a063121
build: merge TrackMemory (CURLDEBUG) into debug-enabled option
Drop separate `TrackMemory` (aka `CURLDEBUG`) debug feature.

After recent changes (thread-safety,
193cb00ce9, and updates leading up to
it), `TrackMemory` is unlikely to cause build or runtime issues.

To simplify builds and debug options, enable `TrackMemory`
unconditionally for debug-enabled (aka `DEBUGBUILD`) builds. Before
this patch, this was already the default, with an option to disable
it, or enable it in non-debug-enabled builds.

Note, in practice these two debug options already went hand in hand. It
was not possible to toggle them separately for a long time due to bugs,
before 59dc9f7e69 (2024-05-28) fixed it.

This patch also removes/deprecates separate knobs and feature flags for
`TrackMemory`:
- autotools: `--enable-curldebug`/`--disable-curldebug`
- cmake: `-DENABLE_CURLDEBUG=ON`/`OFF`
- C macro: `CURLDEBUG`
- libcurl: `CURL_VERSION_CURLDEBUG` symbol deprecated in favor
  of `CURL_VERSION_DEBUG`. They always return the same value after this
  patch.

Also:
- drop `TrackMemory` from `curl -V` output.
- rename internal `CURLDEBUG` macro to `CURL_MEMDEBUG` internally.
  To avoid confusion with `DEBUGBUILD`, but to keep guarding
  `TrackMemory`-related internals for readability.
- runtests: bind `TrackMemory` to debug feature. Keep it a separate
  test feature requirement, for clarity.
- CI: drop test builds for combinations of the two options.
- GHA/linux: no longer disable TrackMemory in the TSAN job.

Ref: https://github.com/curl/curl/pull/20328#issuecomment-3754528407

Closes #20331
2026-01-19 18:43:17 +01:00
Daniel Stenberg
6c31df453b
mqtt: initial support for MQTTS
Closes #19418
2026-01-17 22:43:36 +01:00
Viktor Szakats
ac6264366f
tidy-up: miscellaneous
- tool_bname: scope an include.
- `endif` comments.
- Markdown fixes.
- comment tidy-ups.
- whitespace, newlines, indent.

Closes #20309
2026-01-15 13:06:13 +01:00
Viktor Szakats
46429d6f44
GHA/checkdocs: re-enable proselint, update setup, fix issues found
- update configuration and invocation.
- install via pip.
- drop a file exception.
- alpha sort proselint settings.
- FILEFORMAT: update text about XML compliance.
- CI job takes 22 seconds total.

Ref: https://github.com/amperser/proselint/releases/tag/v0.16.0

Follow-up to 38bfe1c2aa #15314

Closes #19931
2025-12-11 11:42:28 +01:00
Viktor Szakats
8ff5222b4e
docs: fold long lines
Also:
- replace a 'will' found by badwords.
- drop duplicate empty lines.

Closes #19930
2025-12-11 11:42:28 +01:00
Viktor Szakats
bfe6eb1c06
runtests: drop notxml keyword, verify all test data files as XML
Follow-up to 7f3731ce14 #19595

Closes #19927
2025-12-11 00:50:18 +01:00
Viktor Szakats
d9d2e339ce
tidy-up: URLs (cont.) and mdlinkcheck
- add missing ending slashes.
  To avoid duplicates and to use canonical URLs.
- reapply lost updates.
  Follow-up to 2ae983bf4e #19879
- mdlinkcheck: include the `include` directory.
- mdlinkcheck: show unused whitelist items.
- mdlinkcheck: improve debug output.
- mdlinkcheck: delete redundant whitelist items.
- examples/simplessl: lowercase the protocol part.
- BINDINGS: replace one remaining HTTP URL with HTTPS.
  Issue: https://github.com/pycurl/pycurl/issues/892
- BINDINGS: fix a broken link.
- BINDINGS: follow a refresh content redirect.
- KNOWN_BUGS: whitespace.

Closes #19911
2025-12-10 01:21:07 +01:00
Viktor Szakats
d75716e4e5
tests/data: move --libcurl output to external data files
To make the test files XML-compliant, and the expected results
possibly easier to manage by keeping them in `.c` files.

Non-XML-compliant files are down to 36 after this patch.

Also:
- make all macro expansions apply to `%includetext` contents.

Closes #19799
2025-12-09 00:19:10 +01:00
Viktor Szakats
004f41c186
tests: add %AMP macro, use it in two tests
To allow replacing `&` characters in `tests/data/test*` files for
XML-compliance.

Also:
- document `%GT`, `%LT`
  Follow-up to de49cc89ab #19470

Closes #19824
2025-12-03 20:50:19 +01:00
Daniel Stenberg
02aa75a8c2
runtests: allow a test to switch off memdebug
Test 3207 now uses this as its multi-threading is not fully memdebug
compliant.

Closes #19752
2025-11-28 22:39:19 +01:00
Viktor Szakats
7f3731ce14
tests/data: mark non-XML-compliant files as such, xmllint the rest in CI
There are 58 non-compliant files. Mark them with the `notxml` keyword.
Also include the compliant ones in the GHA/checksrc xmllint CI job.

Also:
- delete XML prolog from the 3 test data files that had them.
- FILEFORMAT.md: document the `notxml` keyword.
- FILEFORMAT.md: fix a typo.

Follow-up to de49cc89ab #19470
Follow-up to f3095f0dbd #19528
Follow-up to 87ba80a6df

Closes #19595
2025-11-19 00:02:45 +01:00
Daniel Stenberg
1cbe510d8b
TEST-SUITE.md: correct the man page's path
Closes #19586
2025-11-18 11:02:17 +01:00
Viktor Szakats
c07a7f6bf8
runtests: detect bad libssh differently for test 1459 (fixing CircleCI libssh job)
test 1459 "SFTP with corrupted known_hosts" was seen failing in the past.
To fix it, the test was automatically disabled when detecting libssh
0.9.3 or older, as in the curl CircleCI job, running on Ubuntu 20.04.
This work for a long time, until bumping the CircleCI runner to Ubuntu
22.04 (to have OpenSSL 3), where the test was running again, and failing
with the isssue seen in the past.

- Test skipped with Ubuntu 20.04 (libssh 0.9.3):
  https://app.circleci.com/pipelines/github/curl/curl/16445/workflows/7f198763-e0b0-4037-9245-4c4b40ab8726/jobs/155164
- Failure seen with Ubuntu 22.04 (libssh 0.9.6):
  https://app.circleci.com/pipelines/github/curl/curl/16452/workflows/b817a808-0fd4-40b0-8eb0-d064926efe12/jobs/155206?invite=true#step-107-211709_45
- Failure seen with Ubuntu 24.04 (libssh 0.10.6):
  https://app.circleci.com/pipelines/github/curl/curl/16455/workflows/86c631f1-3c5f-4438-b398-3df2bdab5d20/jobs/155218

Turns out the issue issue isn't libssh 0.9.3 itself, but
a CircleCI-specific default configuration in `/etc/ssh/ssh_config`:
```
# BEGIN ANSIBLE MANAGED BLOCK
Host *
StrictHostKeyChecking no     <------ this particular line
HashKnownHosts no
SendEnv LANG LC_*
# END ANSIBLE MANAGED BLOCK
```

libssh will consult configuration files on hard-coded default system
locations and alter its behavior based on settings found in them.

This libssh behavior is present in all supported versions:
5a2abd34ce
https://gitlab.com/libssh/libssh-mirror/-/tags/libssh-0.9.0

It means the existing disable logic based on libssh version worked by
coincidence, and what needs to be checked is these configurations
to decide if it's safe to run the test. Another, simpler option is
to also accept the result code 67, though in that case the test
wouldn't actually test what we want, but would pass anyway.

With the old `oldlibssh` workaround deleted, and the problematic setting
manually overridden (`StrictHostKeyChecking yes`):
- CircleCI Ubuntu 20.04 passes with 1459 enabled:
  https://app.circleci.com/pipelines/github/curl/curl/16483/workflows/87a9f389-76a2-4a32-acde-c0b411a4c842/jobs/155302
- CircleCI Ubuntu 22.04 does too:
  https://app.circleci.com/pipelines/github/curl/curl/16483/workflows/87a9f389-76a2-4a32-acde-c0b411a4c842/jobs/155303

To fix, replace the `runtests` `oldlibssh` detection logic to parse
libssh config files (instead of checking for libssh version) and disable
test 1459 based on that. Notice the detection is making a light attempt
to parse these files, and does not implement most config file features
(such as includes, quoted values and `=` operator.)

The new runtests workaround tests OK with the:
- default CircleCI configuration, disabling 1459 automatically.
- a sudoless configuration fix, with 1459 run successfully.
  Also keep setting this option in CircleCI jobs.
- a sudo configuration fix, with 1459 run successfully.
Ref: https://app.circleci.com/pipelines/github/curl/curl/16492/workflows/56f39335-97ba-412c-9a9b-3d662694375a

GHA jobs are not affected and they work fine, with 1459 running successfully
before and after this patch.

It's possible the libssh API offers ways to control config file use
and/or set the strict host checking option programatically. Maybe
to enable in debug mode (albeit CircleCI job are not debug-enabled),
or offer an option for them. It may be something for a future patch.

Follow-up to 23540923e1 #8622
Follow-up to 4b01a57c95 #8548
Follow-up to bdc664a640 #8490
Follow-up to 7c140f6b2d #8444

Ref: 6d9c5c91b9 #19549

Closes #19557
2025-11-16 23:28:44 +01:00
Viktor Szakats
ca27404d27
tests/data: add %includetext, dedupe XML payloads into external file
To reduce duplication and to avoid keeping XML-like markup within XML
markup (`test*`), that was tripping `xmllint`.

Ref: #19470

Closes #19504
2025-11-13 12:24:50 +01:00
Viktor Szakats
e496bcfd0a
FILEFORMAT.md: drop some text from the command section
Special meanings of URLs became outdated, and it's also no longer
necessary to pass the test number via the URL or domain anymore.
Delete the text.

Follow-up to c6f1b0ff49 #19429

Closes #19503
2025-11-13 11:41:11 +01:00
Viktor Szakats
3d42510118
runtests: allow client/command to span multiple lines, and use it
Some curl command-lines are long, often repetitive, and difficult
to read or write:

Before this patch (1 test == 1 line):
- <=78 characters: 1099 tests
- 79-132 characters: 500 tests
- 133+ characters: 217 tests: patch meant to help with some of these.

After this patch:
- <=78 characters: 1288 lines
- 79-132 characters: 526 lines
- 133+ characters: 190 lines

After this patch it's possible to fold long lines into multiple ones.
Folding can reduce greppability, thus this is primarily useful for cases
when the options are repetitive, e.g. a list of form options, headers,
mail parameters and the like.

Closes #19500
2025-11-13 01:05:01 +01:00
Dan Fandrich
f544eb97da docs: Line endings are no longer significant in test files
Since commit f477f3efc, CR/LF characters in test files are no longer
significant, making the files a little more XML-like.

Closes #19469
2025-11-11 10:07:41 -08:00
Viktor Szakats
904e7ecb66
tests: replace remaining CR bytes with the new macro %CR
There is no more mixed-newline file in the repository after this patch.
Except for`.bat` and `.sln` files (4 in total), all files use LF
newlines.

Also:
- `spacecheck.pl`: drop mixed-EOL exception for test data.
- runtests: add option `-w` to check if test data has stray CR bytes in
  them.
- build: enable the option above in test targets, except the CI-specific
  one where `spacecheck.pl` does this job already.
- tested OK (with expected failures) in CI with stray CRs added.
- cmake: enable option `-a` for the `tests` target. To continue testing
  after a failed test.

Follow-up to 63e9721b63 #19313
Follow-up to 6cf3d7b1b1 #19318
Follow-up to 4d2a05d3fe #19284

Closes #19347
2025-11-06 20:45:45 +01:00
Viktor Szakats
403a2c2b06
tests: shorten space and tab macro names
Easier to write and read.

Follow-up to d29f14b9cf #19300

Closes #19349
2025-11-05 15:59:43 +01:00
Viktor Szakats
63e9721b63
tests: avoid hard-coded CRLFs in more sections
- `reply/data*`, `verify/stdout`, `verify/stderr`, `verify/file*`,
  `verify/proxy`:
  - make `crlf="yes"` force CRLF to all lines, instead of just applying
    to HTTP protocol headers.
  - add support for `crlf="headers"` that only converts HTTP protocol
    header lines to CRLF. (previously done via `crlf="yes"`.)
  - use `crlf="headers"` where possible.

- `reply/connect*`:
  - add support for `crlf="yes"` and `crlf="headers"`.
  - use them where possible.

- `client/file*`, `client/stdin`:
  - add support for `crlf="yes"`.
  - use it where possible.

- `reply/data*`, `verify/protocol`:
  - replace existing uses of `crlf="yes"` with `crlf="headers`" where it
    does not change the result.

Reducing the number of `tests/data/test*`:
- CRLF newlines from 10295 to 1985. (119985 lines total)
- files with mixed newlines from 656 to 113. (1890 files total)

After this patch there remain 141 sections with mixed newlines, where
the mixing is not split between headers/non-headers. There is no obvious
pattern here. Some of the CRLF uses might be accidental, or
non-significant. They will be tackled in a future patch.

Follow-up to 6cf3d7b1b1 #19318
Follow-up to 4d2a05d3fe #19284

Closes #19313
2025-11-03 21:15:12 +01:00
Viktor Szakats
6cf3d7b1b1
tests: avoid more hard-coded CRLFs in protocol sections
- fix regex to not catch CR (from CRLF), in `PORT`, `EPRT`
  commands, allowing to use `crlf="yes"` more.
- add `crlf="headers"` mode for `protocol` sections.
  To call `subnewlines()` without its force option.
  This is the mode used in `data` sections when `crlf="yes"`.
  (This confusion may be subject to a future commit.)
- subnewlines: apply CRLF to `HEAD` and `CONNECT` HTTP requests.
- subnewlines: apply CRLF to RTSP requests.
- delete remaining empty `protocol` sections.

Reducing the number of `tests/data/test*`:
- CRLF newlines from 11325 to 10295. (119984 lines total)
- files with mixed newlines from 707 to 656. (1890 files total)

Follow-up to 4d2a05d3fe #19284

Closes #19318
2025-11-01 23:52:55 +01:00
Viktor Szakats
d29f14b9cf
tests: replace significant invisible spaces with macros
To make them explicit, visible, avoid being accidentally trimmed.
Also prevents Git warnings, e.g. on `git am`.

Also:
- runtests: add support for `%spc%` and `%tab%` macros.
- test59: delete non-significant line-ending space.
- spacecheck.pl: drop line-ending whitespace exception for tests.

Closes #19300
2025-10-31 17:15:33 +01:00
Viktor Szakats
fc9b215fde
CI.md: refresh
Closes #18973
2025-10-10 19:47:08 +02:00
Daniel Stenberg
b011e3fcfb
vssh: drop support for wolfSSH
The implementation was incomplete and lesser than the other backends. No
one ever reported a bug or requested enhancements for this, indicating
that this backend was never used.

Closes #18700
2025-09-24 22:59:33 +02:00
Viktor Szakats
cc50f05370
GHA/codeql: re-enable for C with the default query pack
Earlier we used `security-extended` and tried `security-and-quality`.
Try the default to see how it works.

CodeQL no longer uses the project's Actions cache, also fixing
the previously seen repeat cache entry issue.

- switch to `manual` build. It's 3x faster than the default `autobuild`.
- enable more dependencies to increase coverage.
- docs/tests/CI.md: re-add CodeQL.

Ref: https://docs.github.com/en/code-security/code-scanning/managing-your-code-scanning-configuration/codeql-query-suites
Ref: https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/codeql-code-scanning-for-compiled-languages
Ref: #16263
Ref: 173805b2e7 #15798

Closes #18528
2025-09-12 11:03:44 +02:00
Daniel Stenberg
71c9706959
tests: remove the 'none' server
Only actually needed servers should be listed and none is then implied
if no servers are listed.

Outputs a warning if "none" is still set as a server.

Closes #18466
2025-09-03 14:30:10 +02:00
Viktor Szakats
8fac255fc1
test: add cygwin feature and use it (test 1056, 1517)
To replace custom checks with the same effect.

Closes #18327
2025-08-21 13:11:32 +02:00
Daniel Stenberg
df2b4ccc22
hostip: cache negative name resolves
Hold them for half the normal lifetime. Helps when told to transfer N
URLs in quick succession that all use the same non-resolving hostname.

Done by storing a DNS entry with a NULL pointer for 'addr'.

Previously an attempt was made in #12406 by Björn Stenberg that was
ultimately never merged.

Closes #18157
2025-08-05 08:05:31 +02:00