Connection filter code attempts to resolve remote address for listen connection

[piru]

I did this

curl -v --ftp-port "-" ftp://ftp.funet.fi

In output I see a bogus error:

...
* sa_addr inet_ntop() failed with errno 47: Address family not supported by protocol family
...

The error is due to set_remote_ip() call in Curl_conn_tcp_listen_set() with unset ctx->addr.sa_addr. See

curl/lib/cf-socket.c

Line 1816 in cf3e6ce

set_remote_ip(cf, data);

I expected the following

No superfluous errors being reported.

curl/libcurl version

curl 7.88.1 (aarch64-apple-darwin22.3.0) libcurl/7.88.1 OpenSSL/3.0.8 zlib/1.2.13 brotli/1.0.9 zstd/1.5.4 libidn2/2.3.4 libpsl/0.21.2 (+libidn2/2.3.4) nghttp2/1.52.0
Release-Date: 2023-02-20
Protocols: dict file ftp ftps gopher gophers http https imap imaps mqtt pop3 pop3s rtsp smb smbs smtp smtps telnet tftp
Features: alt-svc AsynchDNS brotli HSTS HTTP2 HTTPS-proxy IDN IPv6 Largefile libz NTLM NTLM_WB PSL SSL threadsafe TLS-SRP UnixSockets zstd

operating system

Darwin computername.local 22.3.0 Darwin Kernel Version 22.3.0: Mon Jan 30 20:38:37 PST 2023; root:xnu-8792.81.3~2/RELEASE_ARM64_T6000 arm64

[icing]

Thanks for the report. Please see #10642 for the fix.

[piru]

This fixes the issue for me, thanks!