Previously this was one single manpage for two functions but as they are
two separate ones since a while back, they should each clearly document
their single specific functions.
Follow-up to eefcc1bda4Closes#14068
- use imperative form
- use lowercase
- no period
- unify some phrases
- fix curl_multi_socket and curl_multi_socket_all to keep their own
descriptions
Closes#14062
When an individual file ended with a quote (typically an example), the
render function would return without ending the quote correctly with a
".fi" (fill in) in the manpage output.
This made the additional text provided below to render wrongly.
Closes#14048
These have lingered in the issue tracker for a long time without action.
We don't expect any fixes in the near term either. Move them to the
KNOWN_BUGS document.
Closes#12177Closes#12171Closes#13350Closes#14042
Fix issues detected.
Also:
- One of the `.vc` files used LF EOLs, while the other didn't.
Make that one also use LF EOLs, as this is apparently supported by
`nmake`.
- Drop `.dsw` and `.btn` types from `.gitattributes`.
The repository doesn't use them.
- Sync section order with the rest of files in
`tests/certs/EdelCurlRoot-ca.prm`.
- Indent/align `.prm` and `.pem` files.
- Delete dummy `[something]` section from `.prm` and `.pem` files.
Mental note:
MSVC `.sln` files seem to accept spaces for indentation and also support
LF line-endings. I cannot test this and I don't know what's more
convenient when updating them, so left them as-is, with specific
exclusions.
Closes#14031
It needs to be set to the leading digits and dots only, so that the
`-[date]` suffix strings are not included, as those used in the daily
snapshots.
Fixes#14035
Reported-by: Marcel Raad
Closes#14036
- when checking for QUIC support in OpenSSL, also check
for it being at least 3.3.0
- remove workarounds for features buggy or missing in 3.2
Closes#14026
When libcurl discards a connection there are two phases this may go
through: "shutdown" and "closing". If a connection is aborted, the
shutdown phase is skipped and it is closed right away.
The connection filters attached to the connection implement the phases
in their `do_shutdown()` and `do_close()` callbacks. Filters carry now a
`shutdown` flags next to `connected` to keep track of the shutdown
operation.
Filters are shut down from top to bottom. If a filter is not connected,
its shutdown is skipped. Notable filters that *do* something during
shutdown are HTTP/2 and TLS. HTTP/2 sends the GOAWAY frame. TLS sends
its close notify and expects to receive a close notify from the server.
As sends and receives may EAGAIN on the network, a shutdown is often not
successful right away and needs to poll the connection's socket(s). To
facilitate this, such connections are placed on a new shutdown list
inside the connection cache.
Since managing this list requires the cooperation of a multi handle,
only the connection cache belonging to a multi handle is used. If a
connection was in another cache when being discarded, it is removed
there and added to the multi's cache. If no multi handle is available at
that time, the connection is shutdown and closed in a one-time,
best-effort attempt.
When a multi handle is destroyed, all connection still on the shutdown
list are discarded with a final shutdown attempt and close. In curl
debug builds, the environment variable `CURL_GRACEFUL_SHUTDOWN` can be
set to make this graceful with a timeout in milliseconds given by the
variable.
The shutdown list is limited to the max number of connections configured
for a multi cache. Set via CURLMOPT_MAX_TOTAL_CONNECTIONS. When the
limit is reached, the oldest connection on the shutdown list is
discarded.
- In multi_wait() and multi_waitfds(), collect all connection caches
involved (each transfer might carry its own) into a temporary list.
Let each connection cache on the list contribute sockets and
POLLIN/OUT events it's connections are waiting for.
- in multi_perform() collect the connection caches the same way and let
them peform their maintenance. This will make another non-blocking
attempt to shutdown all connections on its shutdown list.
- for event based multis (multi->socket_cb set), add the sockets and
their poll events via the callback. When `multi_socket()` is invoked
for a socket not known by an active transfer, forward this to the
multi's cache for processing. On closing a connection, remove its
socket(s) via the callback.
TLS connection filters MUST NOT send close nofity messages in their
`do_close()` implementation. The reason is that a TLS close notify
signals a success. When a connection is aborted and skips its shutdown
phase, the server needs to see a missing close notify to detect
something has gone wrong.
A graceful shutdown of FTP's data connection is performed implicitly
before regarding the upload/download as complete and continuing on the
control connection. For FTP without TLS, there is just the socket close
happening. But with TLS, the sent/received close notify signals that the
transfer is complete and healthy. Servers like `vsftpd` verify that and
reject uploads without a TLS close notify.
- added test_19_* for shutdown related tests
- test_19_01 and test_19_02 test for TCP RST packets
which happen without a graceful shutdown and should
no longer appear otherwise.
- add test_19_03 for handling shutdowns by the server
- add test_19_04 for handling shutdowns by curl
- add test_19_05 for event based shutdowny by server
- add test_30_06/07 and test_31_06/07 for shutdown checks
on FTP up- and downloads.
Closes#13976
This replacing of eight leading spaces into tabs was already done for
the embedded uncompressed version in tool_hugehelp.c so it does not save
anything there. But the gzip compressed version ends up almost 2K
smaller.
The output in a terminal should be identical.
Before using TABs:
curl.txt 282492 bytes
curl.txt.gz 73261 bytes
With this change applied:
curl.txt 249382 bytes
curl.txt.gz 71470 bytes
Closes#14016
- in phase CONNECTING/TUNNELING/PROTOCONNECT, retrieve
the socket from the connection filters and do not rely
on `conn->sockfd` being already set by the transfer.
- this applies to the default behaviour, a protocol handler
may override this via its callbacks.
- add a warning message in multi_getsock() when the transfer
is expected to have something in its pollset, but instead
it is empty.
Reported-by: saurabhsingh-dev on github
Fixes#13998Closes#14011
A previous change sometimes made a command line option's description not
end with a newline immediately before the next command line.
Also widened the lines to wrap on column 79 instead of 78.
Closes#14010
When user sets CURLOPT_SSLCERT but leaves CURLOPT_SSLKEY unset assume
the path passed in CURLOPT_SSLCERT holds the ssl key which is what we do
in openssl implementation.
Fixes#14007Closes#14008
