curl_url_set.md: extended

Closes #13404

urlapi: add CURLU_GET_EMPTY for empty queries and fragments

By default the API inhibits empty queries and fragments extracted.
Unless this new flag is set.

This also makes the b

urlapi: add CURLU_GET_EMPTY for empty queries and fragments

By default the API inhibits empty queries and fragments extracted.
Unless this new flag is set.

This also makes the behavior more consistent: without it set, zero
length queries and fragments are considered not present in the URL. With
the flag set, they are returned as a zero length strings if they were in
fact present in the URL.

This applies when extracting the individual query and fragment
components and for the full URL.

Closes #13396

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RELEASE-NOTES: synced

lib1560: test with leading zeroes and more IPv4 versions

Inspired by WHATWG URL Spec test inputs

Closes #13400

smtp: result of Curl_bufq_cread was not used

return the result back to the caller.

Closes #13398

urlapi: fix relative redirects to fragment-only

Using the URL API for a redirect URL when the redirected-to string
starts with a hash, ie is only a fragment, the API would produce the

urlapi: fix relative redirects to fragment-only

Using the URL API for a redirect URL when the redirected-to string
starts with a hash, ie is only a fragment, the API would produce the
wrong final URL.

Adjusted test 1560 to test for several new redirect cases.

Closes #13394

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url: fix use of an uninitialized variable

Closes #13399

os400: sync with latest changes

- Conversion support for new version info character field rtmp_version.
- New ILE/RPG declarations.

Closes #13402

ngtcp2: fix macro use

macro "H3_STREAM_CTX" requires 2 arguments, but only 1 given

Follow-up to c6655f7029ec5c128561e3ecf1f93db3ed0432a4

Closes #13401

sendf: fix two typos in comments

The parameters are named data, not date.

Closes #13393

lib: silence warnings on comma misuse

Building curl with -Wcomma, I see warnings about "possible misuse of
comma operator here" and moving fields assignment out of the for() fixes
it

lib: silence warnings on comma misuse

Building curl with -Wcomma, I see warnings about "possible misuse of
comma operator here" and moving fields assignment out of the for() fixes
it.

Closes #13392

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http/2, http/3: decouple stream state from easy handle

- add `Curl_hash_offt` as hashmap between a `curl_off_t` and
an object. Use this in h2+h3 connection filters to associate
`

http/2, http/3: decouple stream state from easy handle

- add `Curl_hash_offt` as hashmap between a `curl_off_t` and
an object. Use this in h2+h3 connection filters to associate
`data->id` with the internal stream state.
- changed implementations of all affected connection filters
- removed `h2_ctx*` and `h3_ctx*` from `struct HTTP` and thus
the easy handle
- solves the problem of attaching "foreign protocol" easy handles
during connection shutdown

Test 1616 verifies the new hash functions.

Closes #13204

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ROADMAP: remove completed entries, mention websocket

THANKS-filter: name fixes

winbuild: add ENABLE_WEBSOCKETS option

Closes #13232

dmaketgz: compacter

Removes the need for disabling shellcheck warnings.

Follow-up to d28f74913c2
Proposed-by: Viktor Szakats
Closes #13391

tests: Fix uninitialized value warning

The check for an option must be predicated on options existing at all.

Follow-up to f7cc9e91

idn: add native AppleIDN (icucore) support for macOS/iOS

I implemented the IDN functions for macOS and iOS using Unicode
libraries coming with macOS and iOS.

Builds and runs her

idn: add native AppleIDN (icucore) support for macOS/iOS

I implemented the IDN functions for macOS and iOS using Unicode
libraries coming with macOS and iOS.

Builds and runs here on macOS 14.2.1. Also verified to load and
run on older macOS version 10.13.

Build requires macOS SDK 13 or equivalent.

Set `-DUSE_APPLE_IDN=ON` CMake option to enable it.
With autotools and other build tools, set these manual options:
```
CPPFLAGS=-DUSE_APPLE_IDN
LIBS=-licucore
```

Completes TODO 1.6.

TODO: add autotools option and feature-detection.

Refs: #5330 #5371
Co-authored-by: Viktor Szakats
Closes #13246

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http3: extend download abort tests, fixes in ngtcp2

- fix flow handling in ngtcp2 to ACK data on streams
we abort ourself.
- extend test_02_23* cases to also run for h3
- skip

http3: extend download abort tests, fixes in ngtcp2

- fix flow handling in ngtcp2 to ACK data on streams
we abort ourself.
- extend test_02_23* cases to also run for h3
- skip test_02_23* for OpenSSL QUIC as it gets stalled
on progressing the connection

Closes #13374

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tests: add -q as first option when invoking curl for tests

To reduce the risk that the user running the tests has a .curlrc present
that messes things up.

Support 'option="no-q"

tests: add -q as first option when invoking curl for tests

To reduce the risk that the user running the tests has a .curlrc present
that messes things up.

Support 'option="no-q"' for the <command> tag to switch it off on demand.
Use this new feature in test 433 and 436.

Ref: #13284
Closes #13387

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dmaketgz: release tarball generation using docker

For easier reproducibility.

Mention using this script in RELEASE-PROCEDURE

Closes #13388

cmake: update ECH code and minor fixups

- `openssl_check_symbol_exists()` expects a 4th argument now.
Follow-up to edc2702a1fe3a4a5386ffd9aa4f240f0c0197fa2 #13373

- minor comm

cmake: update ECH code and minor fixups

- `openssl_check_symbol_exists()` expects a 4th argument now.
Follow-up to edc2702a1fe3a4a5386ffd9aa4f240f0c0197fa2 #13373

- minor comment/script touch-ups.
Follow-up to a362962b7289ec02b412890c9515657cf0ed50ac #11922

- fix indentation.

Closes #13383

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tests: fix shellcheck issues in `ech_tests.sh`

Add double-quotes where missing.

Follow-up to a362962b7289ec02b412890c9515657cf0ed50ac #11922
Closes #13382

dist: add ECH files to tarball

Also sort `EXTRA_DIST` list in `tests/Makefile.am` and make it diffable.

Follow-up to a362962b7289ec02b412890c9515657cf0ed50ac #11922
Closes #13381

openvms: look for `USE_IPV6` in `config.h` (was: `ENABLE_IPV6`)

The OpenVMS script `config_h.com` is parsing the config header
generated by autotools. Let's make it look for the macro na

openvms: look for `USE_IPV6` in `config.h` (was: `ENABLE_IPV6`)

The OpenVMS script `config_h.com` is parsing the config header
generated by autotools. Let's make it look for the macro name we now
use universally across the codebase.

Follow-up to e411c98f702f0fb38dceec95e7507ef15a00d12c #13349
Closes #13360

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