Do not set the easy handle opening a proxy tunnel as userdata on the
stream. The ease handle might go out of scope long before the tunnel
stream is closed.
Closes#21962
Adjust code to avoid `-Wformat-signedness` warnings, while making sure
that enums are always cast to a known type when passing them to `printf`
functions, to support compilers and compiler settings where enums are
not default-size signed ints.
- cast integers printed as hex to `unsigned`. (63 times, 20 of them in
`mbedtls.c`)
- cast misc enums to `int` for printing. (31 times)
- cast `CURL_LOCK_DATA_*` enums to `int`. (4 times)
- cast `CURL_FORMADD_*` enums to `int`. (13 times)
- cast `CURLSHE_*` enums to `int`. (3 times)
- cast `CURLUE_*` enums to `int`. (33 times)
- cast `CURLMSG_*` enums to `int`. (6 times)
- cast `CURLE_*` enums to `int`. (~380 times)
- unit1675: fix mask.
Follow-up to 7c34365cce#21879
Ref: #18343 (initial attempt)
Closes#20848
Share common functions/structs between ngtcp2 HTTP/3 and the proxy
version.
Fix bugs in proxy implementation when it comes to stream and pollset
handling and transfer lifetimes.
Curl_multi_xfer_sockbuf_borrow: work without multi
When a connection gets shutdown by a share, the easy handle used is
share->admin and it does not have a multi handle. In that case let
Curl_multi_xfer_sockbuf_borrow() allocate a buffer to be freed on
release.
This happens when a TLS filter sends its last notify through a HTTP/3
proxy tunnel.
Closes#21871
