Returning for example (without newlines):
```
crypto:LibreSSL MD5:off MD5-PEM:off RIPEMD160:off DSA:off
RSA:on RSA-SHA1:on ECDSA:on ED25519:on ML-KEM:off
AES-CTR:on AES-CBC:on BLOWFISH:off RC4:off CAST:off
3DES:off zlib:on clear-memory:on debug-logging:on
```
To allow library users to find out these details, and add a searchable
static string to binaries with this information.
Possible values for `crypto`: `AWS-LC`, `BoringSSL`, `Libgcrypt`,
`LibreSSL`, `mbedTLS`, `OpenSSL`, `OpenSSL/1.1.1`, `OS400QC3`, `WinCNG`,
`wolfSSL`.
Also:
- replace manual translation of crypto engine enum to name in CMake
integration test snippet with the new API.
Fixes#2161Closes#2178
- man pages: grammar
- examples: add missing parentheses to macro values
- examples: replace `write()` with `_write()` on Windows.
(to avoid warnings.)
- examples, tests: drop redundant NULL assigments.
- examples: fix to cleanup on error in ssh2_echo, ssh2_exec.
- libssh2.rpgle.in: make hex notation consistent in comment.
- chacha, session.h: avoid comparison with literal NULL.
- prefer 'unrecognized' vs 'unknown' in error messages.
- mbedtls: sync a code pattern with others in the code in
`ssh2_rsa_new()`.
- openssl: declutter and update comment for wolfSSL `HMAC_Update()`
exception. Also drop FIXME as the upstream incompatibility seems
intentional.
- pem, userauth, wincng: fix, clarify error messages.
- wincng: add explanation for `NOLINT` exception, reword another
comment.
(suggested by Copilot)
- misc: drop redundant parentheses.
- test_read: fix a type mismatch.
- openssl: use indexed syntax for readability.
- vms/man2help: fix tool name is help text.
- formatting: reflow, newlines, spaces, comment typos.
Some of these reported by GitHub Code Quality / Copilot.
Closes#2042
Checker script and wordlist comes from curl.
Also:
- checksrc.pl: sync up with curl.
- unfold an IETF URL.
- update all IETF URLs where missing.
Closes#1959
To render in Git webviews as-is, to make it easier to edit, verify,
and to sync up with curl.
- add options to not build the `.3` man pages:
- autotools: `--disable-docs`
- cmake: `LIBSSH2_BUILD_DOCS=OFF`
- building `.3` man pages requires Perl after this patch.
- drop `mansyntax` and the shell / `grep` / GNU `man` tool requirements with it.
- scripts and most logic were copied from curl.
- add `cd2nroff` from curl, with edits to relax curl-specific checks.
- used `nroff2cd` (from curl) to convert from `.3` to `.md`. Then
manually fixed copyrights, inline function references and a couple
of other things.
Credits-to: Daniel Stenberg
Ref: eefcc1bda4
Ref: https://github.com/curl/curl/pull/12730
Ref: https://github.com/libssh2/www/issues/25#issuecomment-3289431671Closes#1660
