lib: separate scheme info from protocol implementation

This allows builds know about all schemes - but only have the protocol
implementations for those actually built-in.

It further allows multiple protocols to reuse the same protocol setup
and functions for both TLS and non-TLS implementations instead of
needing two (or more) structs.

The scheme information is now in 'struct Curl_scheme' and all the
function pointers for each scheme/protocol implementation are in struct
Curl_protocol.

The URL API now always work with all known protocols.

test1560: run without requiring all the protocols

Closes #20351
This commit is contained in:
Daniel Stenberg 2026-01-19 00:15:41 +01:00
parent 9703dabd77
commit fc53df4768
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60 changed files with 830 additions and 1050 deletions

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@ -13,17 +13,6 @@ url
<setenv>
LC_ALL=C.UTF-8
</setenv>
<features>
file
https
http
pop3
smtp
imap
ldap
dict
ftp
</features>
<name>
URL API
</name>