unexpected JSON config error

[NeverBehave]

Summary

When using -c arg passing in the following JSON file, an unexpected error occur, while command line with same parameter works well

How to reproduce

{
    "method": "aes-256-gcm",
    "password": "pass",
    "server_port": 8888,
    "server": "[::]"
}

$ ssserver -c shadowsocks.json
2022-05-03T14:59:25.811221563-07:00 INFO  shadowsocks server 1.14.2 build 2022-04-11T03:43:00.819770073+00:00
2022-05-03T14:59:25.812564846-07:00 ERROR servers exited with error: dns resolve [::]:8888 error: proto error: Label contains invalid characters: Err(Errors { invalid_mapping, disallowed_by_std3_ascii_rules })
server aborted with server exited unexpectedly

While the following equivalent works just fine:

$ ssserver -s "[::]:8888" -m "aes-256-gcm" -k "pass"
2022-05-03T15:03:17.690314702-07:00 INFO  shadowsocks server 1.14.2 build 2022-04-11T03:43:00.819770073+00:00
2022-05-03T15:03:17.691616534-07:00 INFO  shadowsocks tcp server listening on [::]:8888, inbound address [::]:8888 

Expected Behavior

JSON file should behave the same as the command args

[database64128]

Don't put :: in [].

[NeverBehave]

Don't put :: in [].

Yes it works. Well I guess we should also revise this part of the docs

shadowsocks-rust/README.md

Line 539 in 32f6a09

// listen on [::] for dual stack support