tool_operate: rename functions to make more sense

curl: create easy handles on-demand and not ahead of time

This should again enable crazy-large download ranges of the style
[1-10000000] that otherwise easily ran out of memory starting

curl: create easy handles on-demand and not ahead of time

This should again enable crazy-large download ranges of the style
[1-10000000] that otherwise easily ran out of memory starting in 7.66.0
when this new handle allocating scheme was introduced.

Reported-by: Peter Sumatra
Fixes #4393
Closes #4438

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curl: exit the create_transfers loop on errors

When looping around the ranges and given URLs to create transfers, all
errors should exit the loop and return. Previously it would keep

curl: exit the create_transfers loop on errors

When looping around the ranges and given URLs to create transfers, all
errors should exit the loop and return. Previously it would keep
looping.

Reported-by: SumatraPeter on github
Bug: #4393
Closes #4396

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tool_operate: removed unused variable 'done'

Fixes warning detected by PVS-Studio
Fixes #4374

tool_operate: Expression 'config->resume_from' is always true

Fixes warning detected by PVS-Studio
Fixes #4374

curl: fix memory leaked by parse_metalink()

This commit fixes a regression introduced by curl-7_65_3-5-gb88940850.
Detected by tests 2005, 2008, 2009, 2010, 2011, and 2012 with valgrind

curl: fix memory leaked by parse_metalink()

This commit fixes a regression introduced by curl-7_65_3-5-gb88940850.
Detected by tests 2005, 2008, 2009, 2010, 2011, and 2012 with valgrind
and libmetalink enabled.

Closes #4326

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curl: make sure the parallel transfers do them all

The logic could erroneously break the loop too early before all
transfers had been transferred.

Reported-by: Tom van der Woerd

curl: make sure the parallel transfers do them all

The logic could erroneously break the loop too early before all
transfers had been transferred.

Reported-by: Tom van der Woerdt
Fixes #4316
Closes #4317

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curl: fix include conditions

cleanup: remove DOT_CHAR completely

Follow-up to f9c7ba9096ec

The use of DOT_CHAR for ".ssh" was probably a mistake and is removed
now.

Pointed-out-by: Gisle Vanem

cleanup: remove DOT_CHAR completely

Follow-up to f9c7ba9096ec

The use of DOT_CHAR for ".ssh" was probably a mistake and is removed
now.

Pointed-out-by: Gisle Vanem
Bug: https://github.com/curl/curl/pull/4230#issuecomment-522960638

Closes #4247

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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