Split out adding of individual request headers into a switch. Check
the connection http version only on fresh connections, use separate
methods.
Add TE: header directly without allocation. Add bit for indicating
Connection: header has been added and custom headers should not do
that again.
Closes#18444
Setting `CURL_ENTROPY` in debug-enabled builds overrides the code paths
responsible for random number generation. To avoid masking issue there,
this patch moves `CURL_ENTROPY` settings to each test that requires it,
and stop setting it by default for all tests (in `runner.pm`).
This makes it possible to catch random generator issues in debug-enabled
builds; extending test coverage.
To keep offering a well-defined state for tests, make `runner.pm` delete
the `CURL_ENTROPY` env, if present.
Ref: #17970Closes#17971
Some feature names used in tests had minor differences compared to
the well-known ones from `curl -V`. This patch syncs them to make test
results easier to grok.
Closes#14183
- add websockets support to sws
- 2300: first very basic websockets test
- 2301: first libcurl test for ws (not working yet)
- 2302: use the ws callback
- 2303: test refused upgrade