tidy-up: spelling quiche and Rustls

Closes #14605

rustls: add support for setting TLS version and ciphers

Add support for CURLOPT_SSLVERSION, CURLOPT_TLS13_CIPHERS and
CURLOPT_SSL_CIPHER_LIST.

Closes #14535

wolfssl: fix CURLOPT_SSLVERSION

Before, setting CURLOPT_SSLVERSION with wolfSSL restricted the the tls
proto to just the specified version. Now it properly supports a range.
So it ca

wolfssl: fix CURLOPT_SSLVERSION

Before, setting CURLOPT_SSLVERSION with wolfSSL restricted the the tls
proto to just the specified version. Now it properly supports a range.
So it can set the min and max tls proto (max requires wolfSSL 4.2.0).

Bump the absolute minimum required version of wolfSSL to 3.4.6 (released
2015) because it is needed for the wolfSSL_CTX_SetMinVersion() function.

Closes #14480

show more ...

curldown: fixups

- make DEFAULT sections less repetitive

- make historic mentions use HISTORY

- generate the protocols section on `# %PROTOCOLS%` instead of guessing

curldown: fixups

- make DEFAULT sections less repetitive

- make historic mentions use HISTORY

- generate the protocols section on `# %PROTOCOLS%` instead of guessing
where to put it

- generate the availability section on `# %AVAILABILITY%` instead of
guessing where to put it

- make the protocols section more verbose

Closes #14227

show more ...

curldown: make 'added-in:' a mandatory header field

- generate AVAILABILITY manpage sections automatically - for consistent
wording

- allows us to double-check against other d

curldown: make 'added-in:' a mandatory header field

- generate AVAILABILITY manpage sections automatically - for consistent
wording

- allows us to double-check against other documumentation (symbols-in-versions
etc)

- enables proper automation/scripting based on this data

- lots of them were wrong or missing in the manpages

- several of them repeated (sometimes mismatching) backend support info

Add test 1488 to verify "added-in" version numbers against
symbols-in-versions.

Closes #14217

show more ...

tidy-up: adjust casing of project names

Mostly TLS/SSH project name.

Closes #14160

cd2nroff: use an empty "##" to signal end of .IP sequence

Like when we list a series of options and then want to add "normal" text
again afterwards.

Without this, the indentatio

cd2nroff: use an empty "##" to signal end of .IP sequence

Like when we list a series of options and then want to add "normal" text
again afterwards.

Without this, the indentation level wrongly continues even after the
final "##" header, making following text wrongly appear to belong to the
header above.

Adjusted several curldown files to use this.

Fixes #13803
Reported-by: Jay Satiro
Closes #13806

show more ...

docs/libcurl: generate PROTOCOLS from meta-data

Remove the PROTOCOLS section from the source files completely and
instead generate them based on the header data in the curldown files.

docs/libcurl: generate PROTOCOLS from meta-data

Remove the PROTOCOLS section from the source files completely and
instead generate them based on the header data in the curldown files.

It also generates TLS backend information for options marked for TLS as
protocol.

Closes #13175

show more ...

docs/libcurl: add TLS backend info for all TLS options

All man pages that are listed to be for TLS now must also specify
exactly what TLS backends the option works for, or use All if the

docs/libcurl: add TLS backend info for all TLS options

All man pages that are listed to be for TLS now must also specify
exactly what TLS backends the option works for, or use All if they all
work.

cd2nroff makes sure this is done and that the listed backends exist.

Closes #13168

show more ...

docs: make each libcurl man specify protocol(s)

The mandatory header now has a mandatory list of protocols for which the
manpage is relevant.

Most man pages already has a "PROTO

docs: make each libcurl man specify protocol(s)

The mandatory header now has a mandatory list of protocols for which the
manpage is relevant.

Most man pages already has a "PROTOCOLS" section, but this introduces a
stricter way to specify the relevant protocols.

cd2nroff verifies that at least one protocol is mentioned (which can be
`*`).

This information is not used just yet, but A) the PROTOCOLS section can
now instead get generated and get a unified wording across all manpages
and B) this allows us to more reliably filter/search for protocol
specific manpages/options.

Closes #13166

show more ...

curldown: Fix email address in Copyright

The curldown conversion accidentally replaced daniel@haxx.se with
just daniel.se. This reverts back to the proper email address in
the curld

curldown: Fix email address in Copyright

The curldown conversion accidentally replaced daniel@haxx.se with
just daniel.se. This reverts back to the proper email address in
the curldown docs as well as in a few other stray places where it
was incorrect (while unrelated to curldown).

Reviewed-by: Daniel Stenberg <daniel@haxx.se>
Closes: #12997

show more ...

docs: introduce "curldown" for libcurl man page format

curldown is this new file format for libcurl man pages. It is markdown
inspired with differences:

- Each file has a set of

docs: introduce "curldown" for libcurl man page format

curldown is this new file format for libcurl man pages. It is markdown
inspired with differences:

- Each file has a set of leading headers with meta-data
- Supports a small subset of markdown
- Uses .md file extensions for editors/IDE/GitHub to treat them nicely
- Generates man pages very similar to the previous ones
- Generates man pages that still convert nicely to HTML on the website
- Detects and highlights mentions of curl symbols automatically (when
their man page section is specified)

tools:

- cd2nroff: converts from curldown to nroff man page
- nroff2cd: convert an (old) nroff man page to curldown
- cdall: convert many nroff pages to curldown versions
- cd2cd: verifies and updates a curldown to latest curldown

This setup generates .3 versions of all the curldown versions at build time.

CI:

Since the documentation is now technically markdown in the eyes of many
things, the CI runs many more tests and checks on this documentation,
including proselint, link checkers and tests that make sure we capitalize the
first letter after a period...

Closes #12730

show more ...