travis: make torture use --shallow=40

As a first step to enable it to run over a more diverse set of tests in
a reasonable time.

runtests: introduce --shallow to reduce huge torture tests

When set, shallow mode limits runtests -t to make no more than NUM fails
per test case. If more are found, it will randomly dis

runtests: introduce --shallow to reduce huge torture tests

When set, shallow mode limits runtests -t to make no more than NUM fails
per test case. If more are found, it will randomly discard entries until
the number is right. The random seed can also be set.

This is particularly useful when running MANY tests as then most torture
failures will already fail the same functions over and over and make the
total operation painfully tedious.

Closes #4699

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conncache: CONNECT_ONLY connections assumed always in-use

This makes them never to be considered "the oldest" to be discarded when
reaching the connection cache limit. The reasoning here

conncache: CONNECT_ONLY connections assumed always in-use

This makes them never to be considered "the oldest" to be discarded when
reaching the connection cache limit. The reasoning here is that
CONNECT_ONLY is primarily used in combination with using the
connection's socket post connect and since that is used outside of
curl's knowledge we must assume that it is in use until explicitly
closed.

Reported-by: Pavel Pavlov
Reported-by: Pavel Löbl
Fixes #4426
Fixes #4369
Closes #4696

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vtls: make BearSSL possible to set with CURL_SSL_BACKEND

Ref: https://github.com/curl/curl/commit/9b879160df01e7ddbb4770904391d3b74114302b#commitcomment-36355622

Closes #4698

RELEASE-NOTES: synced

travis: remove "coverage", make it "torture"

The coveralls service and test coverage numbers are just too unreliable.
Removed badge from README.md as well.

Fixes #4694
Close

travis: remove "coverage", make it "torture"

The coveralls service and test coverage numbers are just too unreliable.
Removed badge from README.md as well.

Fixes #4694
Closes #4695

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azure: add libssh2 and cmake macos builds

Removed the macos libssh2 build from travis

Closes #4686

curl: use errorf() better

Change series of error outputs to use errorf().

Only errors that are due to mistakes in command line option usage should
use helpf(), other types of er

curl: use errorf() better

Change series of error outputs to use errorf().

Only errors that are due to mistakes in command line option usage should
use helpf(), other types of errors in the tool should rather use
errorf().

Closes #4691

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tests: make it possible to set executable extensions

This enables the use of Windows Subsystem for Linux (WSL) to run the
testsuite against Windows binaries while using Linux servers.

tests: make it possible to set executable extensions

This enables the use of Windows Subsystem for Linux (WSL) to run the
testsuite against Windows binaries while using Linux servers.

This commit introduces the following environment variables:
- CURL_TEST_EXE_EXT: set the executable extension for all components
- CURL_TEST_EXE_EXT_TOOL: set it for the curl tool only
- CURL_TEST_EXE_EXT_SSH: set it for the SSH tools only

Later testcurl.pl could be adjusted to make use of those variables.
- CURL_TEST_EXE_EXT_SRV: set it for the test servers only

(This is one of several commits to support use of WSL for the tests.)

Closes https://github.com/curl/curl/pull/3899

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tests: fix permissions of ssh keys in WSL

Keys created on Windows Subsystem for Linux (WSL) require it for some
reason.

(This is one of several commits to support use of WSL for

tests: fix permissions of ssh keys in WSL

Keys created on Windows Subsystem for Linux (WSL) require it for some
reason.

(This is one of several commits to support use of WSL for the tests.)

Ref: https://github.com/curl/curl/pull/3899

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tests: use \r\n for log messages in WSL

Bash in Windows Subsystem for Linux (WSL) requires it for some reason.

(This is one of several commits to support use of WSL for the tests.)

tests: use \r\n for log messages in WSL

Bash in Windows Subsystem for Linux (WSL) requires it for some reason.

(This is one of several commits to support use of WSL for the tests.)

Ref: https://github.com/curl/curl/pull/3899

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winbuild: Define CARES_STATICLIB when WITH_CARES=static

When libcurl is built with MODE=static, c-ares is forced into static
linkage too. That doesn't happen when MODE=dll so linker woul

winbuild: Define CARES_STATICLIB when WITH_CARES=static

When libcurl is built with MODE=static, c-ares is forced into static
linkage too. That doesn't happen when MODE=dll so linker would break
over undefined symbols.

closes https://github.com/curl/curl/pull/4688

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conn: always set bits.close with connclose()

Closes #4690

cirrus: enable clang sanitizers on freebsd 13

conncache: fix multi-thread use of shared connection cache

It could accidentally let the connection get used by more than one
thread, leading to double-free and more.

Reported-b

conncache: fix multi-thread use of shared connection cache

It could accidentally let the connection get used by more than one
thread, leading to double-free and more.

Reported-by: Christopher Reid
Fixes #4544
Closes #4557

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azure: add a vanilla macos build

Closes #4685

curl: make the etag load logic work without fseek

The fseek()s were unnecessary and caused Coverity warning CID 1456554

Closes #4681

mailmap: Mohammad Hasbini

docs: fix some typos

Closes #4680

RELEASE-NOTES: synced

lib: fix some loose ends for recently added CURLSSLOPT_NO_PARTIALCHAIN

Add support for CURLSSLOPT_NO_PARTIALCHAIN in CURLOPT_PROXY_SSL_OPTIONS
and OS400 package spec.

Also I add

lib: fix some loose ends for recently added CURLSSLOPT_NO_PARTIALCHAIN

Add support for CURLSSLOPT_NO_PARTIALCHAIN in CURLOPT_PROXY_SSL_OPTIONS
and OS400 package spec.

Also I added the option to the NameValue list in the tool even though it
isn't exposed as a command-line option (...yet?). (NameValue stringizes
the option name for the curl cmd -> libcurl source generator)

Follow-up to 564d88a which added CURLSSLOPT_NO_PARTIALCHAIN.

Ref: https://github.com/curl/curl/pull/4655

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setopt: Fix ALPN / NPN user option when built without HTTP2

- Stop treating lack of HTTP2 as an unknown option error result for
CURLOPT_SSL_ENABLE_ALPN and CURLOPT_SSL_ENABLE_NPN.

setopt: Fix ALPN / NPN user option when built without HTTP2

- Stop treating lack of HTTP2 as an unknown option error result for
CURLOPT_SSL_ENABLE_ALPN and CURLOPT_SSL_ENABLE_NPN.

Prior to this change it was impossible to disable ALPN / NPN if libcurl
was built without HTTP2. Setting either option would result in
CURLE_UNKNOWN_OPTION and the respective internal option would not be
set. That was incorrect since ALPN and NPN are used independent of
HTTP2.

Reported-by: Shailesh Kapse

Fixes https://github.com/curl/curl/issues/4668
Closes https://github.com/curl/curl/pull/4672

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etag: allow both --etag-compare and --etag-save in same cmdline

Fixes #4669
Closes #4678

curl_setup: fix `CURLRES_IPV6` condition

Move the definition of `CURLRES_IPV6` to before undefining
`HAVE_GETADDRINFO`. Regression from commit 67a08dca27a which caused
some tests to

curl_setup: fix `CURLRES_IPV6` condition

Move the definition of `CURLRES_IPV6` to before undefining
`HAVE_GETADDRINFO`. Regression from commit 67a08dca27a which caused
some tests to fail and others to be skipped with c-ares.

Fixes https://github.com/curl/curl/issues/4673
Closes https://github.com/curl/curl/pull/4677

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test342: make it return a 304 as the tag matches