CURLOPT_HTTP_VERSION: seting this to 3 forces HTTP/3 use directly

Even though it cannot fall-back to a lower HTTP version automatically. The
safer way to upgrade remains via CURLOPT_ALTS

CURLOPT_HTTP_VERSION: seting this to 3 forces HTTP/3 use directly

Even though it cannot fall-back to a lower HTTP version automatically. The
safer way to upgrade remains via CURLOPT_ALTSVC.

CURLOPT_H3 no longer has any bits that do anything and might be removed
before we remove the experimental label.

Updated the curl tool accordingly to use "--http3".

Closes #4197

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curl: make use of CURLINFO_RETRY_AFTER when retrying

If a Retry-After: header was used in the response, that value overrides
other retry timing options.

Fixes #3794
Closes #

curl: make use of CURLINFO_RETRY_AFTER when retrying

If a Retry-After: header was used in the response, that value overrides
other retry timing options.

Fixes #3794
Closes #4195

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curl: use CURLINFO_PROTOCOL to check for HTTP(s)

... instead of CURLINFO_EFFECTIVE_URL to avoid string operations.

curl: --sasl-authzid added to support CURLOPT_SASL_AUTHZID from the tool

Ref: https://github.com/curl/curl/issues/3653
Ref: https://github.com/curl/curl/pull/3790

NOTE: This com

curl: --sasl-authzid added to support CURLOPT_SASL_AUTHZID from the tool

Ref: https://github.com/curl/curl/issues/3653
Ref: https://github.com/curl/curl/pull/3790

NOTE: This commit was cherry-picked and is part of a series of commits
that added the authzid feature for upcoming 7.66.0. The series was
temporarily reverted in db8ec1f so that it would not ship in a 7.65.x
patch release.

Closes https://github.com/curl/curl/pull/4186

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curl_multi_poll: a sister to curl_multi_wait() that waits more

Repeatedly we see problems where using curl_multi_wait() is difficult or
just awkward because if it has no file descriptor

curl_multi_poll: a sister to curl_multi_wait() that waits more

Repeatedly we see problems where using curl_multi_wait() is difficult or
just awkward because if it has no file descriptor to wait for
internally, it returns immediately and leaves it to the caller to wait
for a small amount of time in order to avoid occasional busy-looping.

This is often missed or misunderstood, leading to underperforming
applications.

This change introduces curl_multi_poll() as a replacement drop-in
function that accepts the exact same set of arguments. This function
works identically to curl_multi_wait() - EXCEPT - for the case when
there's nothing to wait for internally, as then this function will by
itself wait for a "suitable" short time before it returns. This
effectiely avoids all risks of busy-looping and should also make it less
likely that apps "over-wait".

This also changes the curl tool to use this funtion internally when
doing parallel transfers and changes curl_easy_perform() to use it
internally.

Closes #4163

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curl: remove outdated comment

Turned bad with commit b8894085000

Reported-by: niallor on github
Fixes #4172
Closes #4173

curl: avoid uncessary libcurl timeouts (in parallel mode)

When curl_multi_wait() returns OK without file descriptors to wait for,
it might already have done a long timeout.

Clos

curl: avoid uncessary libcurl timeouts (in parallel mode)

When curl_multi_wait() returns OK without file descriptors to wait for,
it might already have done a long timeout.

Closes #4159

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tool_operate: fix implicit call to easysrc_cleanup

easysrc_cleanup is only defined when CURL_DISABLE_LIBCURL_OPTION is not
defined, and prior to this change would be called regardless.

tool_operate: fix implicit call to easysrc_cleanup

easysrc_cleanup is only defined when CURL_DISABLE_LIBCURL_OPTION is not
defined, and prior to this change would be called regardless.

Bug: https://github.com/curl/curl/pull/3804#issuecomment-513922637
Reported-by: Marcel Raad

Closes https://github.com/curl/curl/pull/4142

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curl:create_transfers check return code from curl_easy_setopt

From commit b8894085

Pointed out by Coverity CID 1451703

Closes #4134

HTTP3: initial (experimental) support

USe configure --with-ngtcp2 or --with-quiche

Using either option will enable a HTTP3 build.
Co-authored-by: Alessandro Ghedini <alessandro@

HTTP3: initial (experimental) support

USe configure --with-ngtcp2 or --with-quiche

Using either option will enable a HTTP3 build.
Co-authored-by: Alessandro Ghedini <alessandro@ghedini.me>

Closes #3500

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curl: remove dead code

The loop never loops (since b889408500), pointed out by Coverity (CID
1451702)

Closes #4133

curl: support parallel transfers

This is done by making sure each individual transfer is first added to a
linked list as then they can be performed serially, or at will, in
parallel.

curl: support parallel transfers

This is done by making sure each individual transfer is first added to a
linked list as then they can be performed serially, or at will, in
parallel.

Closes #3804

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curl: skip CURLOPT_PROXY_CAPATH for disabled-proxy builds

Closes #4061

curl: improved skip-setopt-options when built with disabled features

Reduces #ifdefs in src/tool_operate.c

Follow-up from 4e86f2fc4e6
Closes #3936

Revert all SASL authzid (new feature) commits

- Revert all commits related to the SASL authzid feature since the next
release will be a patch release, 7.65.1.

Prior to this ch

Revert all SASL authzid (new feature) commits

- Revert all commits related to the SASL authzid feature since the next
release will be a patch release, 7.65.1.

Prior to this change CURLOPT_SASL_AUTHZID / --sasl-authzid was destined
for the next release, assuming it would be a feature release 7.66.0.
However instead the next release will be a patch release, 7.65.1 and
will not contain any new features.

After the patch release after the reverted commits can be restored by
using cherry-pick:

git cherry-pick a14d72c a9499ff 8c1cc36 c2a8d52 0edf690

Details for all reverted commits:

Revert "os400: take care of CURLOPT_SASL_AUTHZID in curl_easy_setopt_ccsid()."

This reverts commit 0edf6907ae37e2020722e6f61229d8ec64095b0a.

Revert "tests: Fix the line endings for the SASL alt-auth tests"

This reverts commit c2a8d52a1356a722ff9f4aeb983cd4eaf80ef221.

Revert "examples: Added SASL PLAIN authorisation identity (authzid) examples"

This reverts commit 8c1cc369d0c7163c6dcc91fd38edfea1f509ae75.

Revert "curl: --sasl-authzid added to support CURLOPT_SASL_AUTHZID from the tool"

This reverts commit a9499ff136d89987af885e2d7dff0a066a3e5817.

Revert "sasl: Implement SASL authorisation identity via CURLOPT_SASL_AUTHZID"

This reverts commit a14d72ca2fec5d4eb5a043936e4f7ce08015c177.

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curl: --sasl-authzid added to support CURLOPT_SASL_AUTHZID from the tool

curl: make code work with protocol-disabled libcurl

Closes #3844

cleanup: remove FIXME and TODO comments

They serve very little purpose and mostly just add noise. Most of them
have been around for a very long time. I read them all before removing

cleanup: remove FIXME and TODO comments

They serve very little purpose and mostly just add noise. Most of them
have been around for a very long time. I read them all before removing
or rephrasing them.

Ref: #3876
Closes #3883

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curl: don't set FTP options for FTP-disabled builds

... since libcurl has started to be totally unaware of options for
disabled protocols they now return error.

Bug: https://git

curl: don't set FTP options for FTP-disabled builds

... since libcurl has started to be totally unaware of options for
disabled protocols they now return error.

Bug: https://github.com/curl/curl/commit/c9c5304dd4747cbe75d2f24be85920d572fcb5b8#commitcomment-33533937

Reported-by: Marcel Raad
Closes #3886

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tool_operate: build on AmigaOS

alt-svc: the curl command line bits

cli tool: fix mime post with --disable-libcurl-option configure option

Reported-by: Marcel Raad
Fixes #3576
Closes #3583

tool_operate: fix typecheck warning

Use long for CURLOPT_HTTP09_ALLOWED to fix the following warning:
tool_operate.c: In function 'operate_do':
../include/curl/typecheck-gcc.h:47:9:

tool_operate: fix typecheck warning

Use long for CURLOPT_HTTP09_ALLOWED to fix the following warning:
tool_operate.c: In function 'operate_do':
../include/curl/typecheck-gcc.h:47:9: error: call to
'_curl_easy_setopt_err_long' declared with attribute warning:
curl_easy_setopt expects a long argument for this option [-Werror]

Closes https://github.com/curl/curl/pull/3534

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schannel: stop calling it "winssl"

Stick to "Schannel" everywhere. The configure option --with-winssl is
kept to allow existing builds to work but --with-schannel is added as an
alia

schannel: stop calling it "winssl"

Stick to "Schannel" everywhere. The configure option --with-winssl is
kept to allow existing builds to work but --with-schannel is added as an
alias.

Closes #3504

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http: added options for allowing HTTP/0.9 responses

Added CURLOPT_HTTP09_ALLOWED and --http0.9 for this purpose.

For now, both the tool and library allow HTTP/0.9 by default.
do

http: added options for allowing HTTP/0.9 responses

Added CURLOPT_HTTP09_ALLOWED and --http0.9 for this purpose.

For now, both the tool and library allow HTTP/0.9 by default.
docs/DEPRECATE.md lays out the plan for when to reverse that default: 6
months after the 7.64.0 release. The options are added already now so
that applications/scripts can start using them already now.

Fixes #2873
Closes #3383

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