INSTALL: update the list known OSes and CPU archs curl has run on

Closes #6366

curl: fix handling of -q option

The match of the "-q" option (short for "--disable") should:
a) allow concatenation with other single-letters; and
b) be case-sensitive, lest confusin

curl: fix handling of -q option

The match of the "-q" option (short for "--disable") should:
a) allow concatenation with other single-letters; and
b) be case-sensitive, lest confusing with "-Q" ("--quote")

Closes #6364

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tests/badsymbols.pl: ignore stand-alone single hash lines

Bug: https://curl.se/mail/lib-2020-12/0084.html
Reported-by: Dennis Clarke
Assisted-by: Jay Satiro

Closes #6355

curl_easy_pause.3: add multiplexed pause effects

and generally refresh and update. Remove details for ancient versions.

Reviewed-by: Jay Satiro
Closes #6360

curl_easy_pause.3: fix man page reference

Follow-up to ac9a724 from earlier today.

Ref: https://github.com/curl/curl/pull/6359

EXPERIMENTAL: add the Hyper backend to the list

... of current experimental features in curl.

speedcheck: exclude paused transfers

Paused transfers should not be stopped due to slow speed even when
CURLOPT_LOW_SPEED_LIMIT is set. Additionally, the slow speed timer is
now rese

speedcheck: exclude paused transfers

Paused transfers should not be stopped due to slow speed even when
CURLOPT_LOW_SPEED_LIMIT is set. Additionally, the slow speed timer is
now reset when the transfer is unpaused - as otherwise it would easily
just trigger immediately after unpausing.

Reported-by: Harry Sintonen
Fixes #6358
Closes #6359

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h2: do not wait for RECV on paused transfers

... as the socket might be readable all the time when paused and thus
causing a busy-loop.

Reported-by: Harry Sintonen
Reviewed-

h2: do not wait for RECV on paused transfers

... as the socket might be readable all the time when paused and thus
causing a busy-loop.

Reported-by: Harry Sintonen
Reviewed-by: Jay Satiro
Fixes #6356
Closes #6357

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RELEASE-NOTES: synced

cmdline-opts/gen.pl: return hard on errors

... as the warnings tend to go unnoticed otherwise!

Closes #6354

examples/libtest: add .checksrc to dist

... so that (auto)builds from tarballs also get the correct instructions.

Fixes #6176
Closes #6353

test: verify new --write-out variables

Extended test 1029 and added 1188

test970: adapted to the new internal order of variables

curl: add variables to --write-out

In particular, these ones can help a user to create its own error
message when one or transfers fail.

writeout: add 'onerror', 'url', 'urlnum'

curl: add variables to --write-out

In particular, these ones can help a user to create its own error
message when one or transfers fail.

writeout: add 'onerror', 'url', 'urlnum', 'exitcode', 'errormsg'

onerror - lets a user only show the rest on non-zero exit codes

url - the input URL used for this transfer

urlnum - the numerical URL counter (0 indexed) for this transfer

exitcode - the numerical exit code for the transfer

errormsg - obvious

Reported-by: Earnestly on github
Fixes #6199
Closes #6207

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tests: add very simple AWS HTTP v4 Signature test

Signed-off-by: Matthias Gatto <matthias.gatto@outscale.com>

docs: add AWS HTTP v4 Signature

tool: add AWS HTTP v4 Signature support

Signed-off-by: Matthias Gatto <matthias.gatto@outscale.com>

http: Make the call to v4 signature

This patch allow to call the v4 signature introduce in previous commit

Signed-off-by: Matthias Gatto <matthias.gatto@outscale.com>

http: introduce AWS HTTP v4 Signature

It is a security process for HTTP.

It doesn't seems to be standard, but it is used by some cloud providers.

Aws:
https://docs.aws.

http: introduce AWS HTTP v4 Signature

It is a security process for HTTP.

It doesn't seems to be standard, but it is used by some cloud providers.

Aws:
https://docs.aws.amazon.com/general/latest/gr/signature-version-4.html
Outscale:
https://wiki.outscale.net/display/EN/Creating+a+Canonical+Request
GCP (I didn't test that this code work with GCP though):
https://cloud.google.com/storage/docs/access-control/signing-urls-manually

most of the code is in lib/http_v4_signature.c

Information require by the algorithm:
- The URL
- Current time
- some prefix that are append to some of the signature parameters.

The data extracted from the URL are: the URI, the region,
the host and the API type

example:
https://api.eu-west-2.outscale.com/api/latest/ReadNets
~~~ ~~~~~~~~ ~~~~~~~~~~~~~~~~~~~
^ ^ ^
/ \ URI
API type region

Small description of the algorithm:
- make canonical header using content type, the host, and the date
- hash the post data
- make canonical_request using custom request, the URI,
the get data, the canonical header, the signed header
and post data hash
- hash canonical_request
- make str_to_sign using one of the prefix pass in parameter,
the date, the credential scope and the canonical_request hash
- compute hmac from date, using secret key as key.
- compute hmac from region, using above hmac as key
- compute hmac from api_type, using above hmac as key
- compute hmac from request_type, using above hmac as key
- compute hmac from str_to_sign using above hmac as key
- create Authorization header using above hmac, prefix pass in parameter,
the date, and above hash

Signed-off-by: Matthias Gatto <matthias.gatto@outscale.com>

Closes #5703

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http: add hmac support for sha256

It seems current hmac implementation use md5 for the hash,
V4 signature require sha256, so I've added the needed struct in
this commit.

I'v

http: add hmac support for sha256

It seems current hmac implementation use md5 for the hash,
V4 signature require sha256, so I've added the needed struct in
this commit.

I've added the functions that do the hmac in v4 signature file
as a static function ,in the next patch of the serie,
because it's used only by this file.

Signed-off-by: Matthias Gatto <matthias.gatto@outscale.com>

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connect: on linux, enable reporting of all ICMP errors on UDP sockets

The linux kernel does not report all ICMP errors back to userspace due
to historical reasons.

IP*_RECVERR s

connect: on linux, enable reporting of all ICMP errors on UDP sockets

The linux kernel does not report all ICMP errors back to userspace due
to historical reasons.

IP*_RECVERR sockopt must be turned on to have the correct behaviour
which is to pass all ICMP errors to userspace.

See https://bugzilla.kernel.org/show_bug.cgi?id=202355

Closes #6341

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curl: add --create-file-mode [mode]

This option sets the (octal) mode to use for the remote file when one is
created, using the SFTP, SCP or FILE protocols. When not set, the
default

curl: add --create-file-mode [mode]

This option sets the (octal) mode to use for the remote file when one is
created, using the SFTP, SCP or FILE protocols. When not set, the
default is 0644.

Closes #6244

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c-hyper: fix compiler warnings

Identified by clang on windows.

Reported-by: Gisle Vanem
Bug: 58974d25d8173aec154e593ed9d866da566c9811

Closes #6351

KNOWN_BUGS: Remote recursive folder creation with SFTP

Closes #5204

badsymbols.pl: Add verbose mode -v

Use -v as the first option to enable verbose mode which will show source
input, extracted symbol and line info. For example:

Source: ./../incl

badsymbols.pl: Add verbose mode -v

Use -v as the first option to enable verbose mode which will show source
input, extracted symbol and line info. For example:

Source: ./../include/curl/typecheck-gcc.h
Symbol: curlcheck_socket_info(info)
Line #423: #define curlcheck_socket_info(info) \

Ref: https://curl.se/mail/lib-2020-12/0084.html

Closes https://github.com/curl/curl/pull/6349

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