[fallingsquirrel]

Works for me. I bet your OS ships a crippled version of curl.

  $ curl --version
  curl 8.7.1 (x86_64-pc-linux-gnu) [...]

  $ curl dict://dict.org/d:Internet
  220 dict.dict.org dictd 1.12.1/rf on Linux 4.19.0-10-amd64 <auth.mime> <[e-mail]>
  250 ok
  150 1 definitions retrieved
  [...]

[bloopernova]

Possibly Fedora. I'm using Fedora 40 and its curl reports thus:

  curl 8.6.0 (x86_64-redhat-linux-gnu) libcurl/8.6.0 OpenSSL/3.2.2 zlib/1.3.1.zlib-ng libidn2/2.3.7 nghttp2/1.59.0
  Release-Date: 2024-01-31
  Protocols: file ftp ftps http https ipfs ipns
  Features: alt-svc AsynchDNS GSS-API HSTS HTTP2 HTTPS-proxy IDN IPv6 Kerberos Largefile libz SPNEGO SSL threadsafe UnixSockets

And the dict protocol is indeed unsupported by system curl.

EDIT: https://fedoraproject.org/wiki/Changes/CurlMinimal_as_Defaul...

EDIT2: To change from libcurl-minimal to libcurl, run:

  dnf swap libcurl-minimal libcurl
  dnf swap curl-minimal curl

The second step there may not be needed, at least my system had curl paired with libcurl-minimal so your situation may not match mine.

EDIT3: This is the output of my curl now:

  curl 8.6.0 (x86_64-redhat-linux-gnu) libcurl/8.6.0 OpenSSL/3.2.2 zlib/1.3.1.zlib-ng brotli/1.1.0 libidn2/2.3.7 libpsl/0.21.5 libssh/0.10.6/openssl/zlib nghttp2/1.59.0 OpenLDAP/2.6.7
  Release-Date: 2024-01-31
  Protocols: dict file ftp ftps gopher gophers http https imap imaps ipfs ipns ldap ldaps mqtt pop3 pop3s rtsp scp sftp smb smbs smtp smtps telnet tftp ws wss
  Features: alt-svc AsynchDNS brotli GSS-API HSTS HTTP2 HTTPS-proxy IDN IPv6 Kerberos Largefile libz NTLM PSL SPNEGO SSL threadsafe TLS-SRP UnixSockets

[soraminazuki]

Manual build with an explicit `--disable-dict` perhaps? Because it's not Debian, Fedora, Homebrew, Nix, Alpine, Arch, or Gentoo, judging by their package definitions.

[mogoh]

I am on Fedora Silverblue

  $>curl --version
  curl 8.6.0 (x86_64-redhat-linux-gnu) libcurl/8.6.0 OpenSSL/3.2.2 zlib/1.3.1.zlib-ng libidn2/2.3.7 nghttp2/1.59.0
  Release-Date: 2024-01-31
  Protocols: file ftp ftps http https ipfs ipns
  Features: alt-svc AsynchDNS GSS-API HSTS HTTP2 HTTPS-proxy IDN IPv6 Kerberos Largefile libz SPNEGO SSL threadsafe UnixSockets

I am not sure I I understand you correctly. Should it work on Fedora?

[SushiHippie]

The description on this page at least lists the dict protocol

https://src.fedoraproject.org/rpms/curl/

Only the minimal build disables the dict protocol, maybe you have installed the curl-minimal package?

https://src.fedoraproject.org/rpms/curl/blob/rawhide/f/curl....

[soraminazuki]

Ah, it appears that curl-minimal became the default curl for Fedora recently. curl-full has to be installed for full functionality. I initially ignored it because I assumed the default was curl-full.

https://fedoraproject.org/wiki/Changes/CurlMinimal_as_Defaul...

Curl devs are predictably not too happy about this change.

https://daniel.haxx.se/blog/2022/03/16/fedora-and-curl-minim...

[marxisttemp]

You mentioned Homebrew but missed the standard macOS package manager, MacPorts.

[kragen]

works for me too. but it takes about 6 seconds so curl dict://localhost/d:Internet is vastly preferable