TLS: TLSv1.3 earlydata support for curl

Based on #14135, implement TLSv1.3 earlydata support for the curl
command line, libcurl and its implementation in GnuTLS.

If a known TLS

TLS: TLSv1.3 earlydata support for curl

Based on #14135, implement TLSv1.3 earlydata support for the curl
command line, libcurl and its implementation in GnuTLS.

If a known TLS session announces early data support, and the feature is
enabled *and* it is not a "connect-only" transfer, delay the TLS
handshake until the first request is being sent.

- Add --tls-earldata as new boolean command line option for curl.
- Add CURLSSLOPT_EARLYDATA to libcurl to enable use of the feature.
- Add CURLINFO_EARLYDATA_SENT_T to libcurl, reporting the amount of
bytes sent and accepted/rejected by the server.

Implementation details:
- store the ALPN protocol selected at the SSL session.
- When reusing the session and enabling earlydata, use exactly
that ALPN protocol for negoptiation with the server. When the
sessions ALPN does not match the connections ALPN, earlydata
will not be enabled.
- Check that the server selected the correct ALPN protocol for
an earlydata connect. If the server does not confirm or reports
something different, the connect fails.
- HTTP/2: delay sending the initial SETTINGS frames during connect,
if not connect-only.

Verification:
- add test_02_32 to verify earlydata GET with nghttpx.
- add test_07_70 to verify earlydata PUT with nghttpx.
- add support in 'hx-download', 'hx-upload' clients for the feature

Assisted-by: ad-chaos on github
Closes #15211

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lib: use bool/TRUE/FALSE properly

booleans should use the type 'bool' and set the value to TRUE/FALSE

non-booleans should not be 'bool' and should not set the value to
TRUE/FALS

lib: use bool/TRUE/FALSE properly

booleans should use the type 'bool' and set the value to TRUE/FALSE

non-booleans should not be 'bool' and should not set the value to
TRUE/FALSE

Closes #15123

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lib/src: white space edits to comply better with code style

... as checksrc now finds and complains about these.

Closes #14921

connect: limit update IP info

Update IP related information at the connection and the transfer in two
places only: once the filter chain connects and when a transfer is added
to a co

connect: limit update IP info

Update IP related information at the connection and the transfer in two
places only: once the filter chain connects and when a transfer is added
to a connection. The latter only updates on reuse when the filters
already are connected.

The only user of that information before a full connect is the HAProxy
filter. Add cfilter CF_QUERY_IP_INFO query to let it find the
information from the filters "below".

This solves two issues with the previous version:
- updates where often done twice with the same info
- happy eyeballing filter "forks" could overwrite each others
updates before the full winner was determined.

Closes #14699

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getinfo: return zero for unsupported options (when disabled)

instead of returning an error code to the getinfo() call. Like other
info variables work.

Closes #14634

getinfo: add CURLINFO_POSTTRANSFER_TIME_T

Returns the time, in microseconds, from the start until the last byte is
sent by libcurl (i.e. the request is sent off).

Closes #14189

progress: ratelimit/progress tweaks

- multi.c: when ratelimiting a transfer stops (MSTATE_RATELIMITING ->
MSTATE_PERFORMING), run the MSTATE_PERFORMING state right away

- urld

progress: ratelimit/progress tweaks

- multi.c: when ratelimiting a transfer stops (MSTATE_RATELIMITING ->
MSTATE_PERFORMING), run the MSTATE_PERFORMING state right away

- urldata.h: factor out upload and download progress counters into a
struct, use that for passing these to progress update functions

- progress.c/getinfo.c: change names of moved progress counters

- progress.c: use new structs and a helper struct to factor repeated
calculation into static helpers

Closes #14335

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docs: misc language polish

- CURLINFO_FILETIME*: improve language
- add '32bit' and '64bit' as bad words, use 32-bit and 64-bit
- mksymbolsmanpage.pl: avoid "will"

Closes #1

docs: misc language polish

- CURLINFO_FILETIME*: improve language
- add '32bit' and '64bit' as bad words, use 32-bit and 64-bit
- mksymbolsmanpage.pl: avoid "will"

Closes #14070

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lib: tidy up types and casts

Cherry-picked from #13489
Closes #13862

urldata: remove fields not used depending on used features

Reduced size of dynamically_allocated_data structure.

Reduced number of stored values in enum dupstring and enum dupblob.

urldata: remove fields not used depending on used features

Reduced size of dynamically_allocated_data structure.

Reduced number of stored values in enum dupstring and enum dupblob. This
affects the reduced array placed in the UserDefined structure.

Closes #13188

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lib: keep conn IP information together

new struct ip_quadruple for holding local/remote addr+port

- used in data->info and conn and cf-socket.c
- copy back and forth complete st

lib: keep conn IP information together

new struct ip_quadruple for holding local/remote addr+port

- used in data->info and conn and cf-socket.c
- copy back and forth complete struct
- add 'secondary' to conn
- use secondary in reporting success for ftp 2nd connection

Reported-by: DasKutti on github
Fixes #13084
Closes #13090

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CURLINFO_USED_PROXY: return bool whether the proxy was used

Adds test536 to verify

Closes #12719

getinfo: CURLINFO_QUEUE_TIME_T

Returns the time, in microseconds, during which this transfer was held
in a waiting queue before it started "for real". A transfer might be put
in a qu

getinfo: CURLINFO_QUEUE_TIME_T

Returns the time, in microseconds, during which this transfer was held
in a waiting queue before it started "for real". A transfer might be put
in a queue if after getting started, it cannot create a new connection
etc due to set conditions and limits imposed by the application.

Ref: #12293
Closes #12368

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lib: add CURLINFO_CONN_ID and CURLINFO_XFER_ID

- add an `id` long to Curl_easy, -1 on init
- once added to a multi (or its own multi), it gets
a non-negative number assigned by the

lib: add CURLINFO_CONN_ID and CURLINFO_XFER_ID

- add an `id` long to Curl_easy, -1 on init
- once added to a multi (or its own multi), it gets
a non-negative number assigned by the connection cache
- `id` is unique among all transfers using the same
cache until reaching LONG_MAX where it will wrap
around. So, not unique eternally.
- CURLINFO_CONN_ID returns the connection id attached to
data or, if none present, data->state.lastconnect_id
- variables and type declared in tool for write out

Closes #11185

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copyright: update all copyright lines and remove year ranges

- they are mostly pointless in all major jurisdictions
- many big corporations and projects already don't use them
- save

copyright: update all copyright lines and remove year ranges

- they are mostly pointless in all major jurisdictions
- many big corporations and projects already don't use them
- saves us from pointless churn
- git keeps history for us
- the year range is kept in COPYING

checksrc is updated to allow non-year using copyright statements

Closes #10205

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lib: connection filters (cfilter) addition to curl:

- general construct/destroy in connectdata
- default implementations of callback functions
- connect: cfilters for connect and

lib: connection filters (cfilter) addition to curl:

- general construct/destroy in connectdata
- default implementations of callback functions
- connect: cfilters for connect and accept
- socks: cfilter for socks proxying
- http_proxy: cfilter for http proxy tunneling
- vtls: cfilters for primary and proxy ssl
- change in general handling of data/conn
- Curl_cfilter_setup() sets up filter chain based on data settings,
if none are installed by the protocol handler setup
- Curl_cfilter_connect() boot straps filters into `connected` status,
used by handlers and multi to reach further stages
- Curl_cfilter_is_connected() to check if a conn is connected,
e.g. all filters have done their work
- Curl_cfilter_get_select_socks() gets the sockets and READ/WRITE
indicators for multi select to work
- Curl_cfilter_data_pending() asks filters if the have incoming
data pending for recv
- Curl_cfilter_recv()/Curl_cfilter_send are the general callbacks
installed in conn->recv/conn->send for io handling
- Curl_cfilter_attach_data()/Curl_cfilter_detach_data() inform filters
and addition/removal of a `data` from their connection
- adding vtl functions to prevent use of Curl_ssl globals directly
in other parts of the code.

Reviewed-by: Daniel Stenberg
Closes #9855

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getinfo: return better error on NULL as first argument

Closes #9114

copyright: make repository REUSE compliant

Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the

copyright: make repository REUSE compliant

Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the file
`.reuse/dep5`.

This commit also adds a Github workflow to check pull requests and adapts
copyright.pl to the changes.

Closes #8869

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lib: make more protocol specific struct fields #ifdefed

... so that they don't take up space if the protocols are disabled in
the build.

Closes #8944

CURLINFO_CAPATH/CAINFO: get the default CA paths from libcurl

Closes #8888

urldata: merge "struct DynamicStatic" into "struct UrlState"

Both were used for the same purposes and there was no logical separation
between them. Combined, this also saves 16 bytes in

urldata: merge "struct DynamicStatic" into "struct UrlState"

Both were used for the same purposes and there was no logical separation
between them. Combined, this also saves 16 bytes in less holes in my
test build.

Closes #6798

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http: add support to read and store the referrer header

- add CURLINFO_REFERER libcurl option
- add --write-out '%{referer}' command-line option
- extend --xattr command-line option

http: add support to read and store the referrer header

- add CURLINFO_REFERER libcurl option
- add --write-out '%{referer}' command-line option
- extend --xattr command-line option to fill user.xdg.referrer.url extended
attribute with the referrer (if there was any)

Closes #6591

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urldata: move 'followlocation' to UrlState

As this is a state variable it does not belong in UserDefined which is
used to store values set by the user.

Closes #6582

getinfo: build with disabled HTTP support

curl.se: new home

Closes #6172