open https://gitlab.synchro.net/main/sbbs/-/issues/400

When running ircd via SBBSEXEC in an environment without IPv6 (such as default docker configurations), the script crashes.

```
!IRCd ERROR -9 calling getaddrinfo() on ::
!Error Error: Unable to add host to socket set creating listening socket on port 6667
!Module (/sbbs/exec/ircd.js) set exit_code: 1
```

I attempted to force a PLine entry (`P:0.0.0.0:::6667`), but still seeing the same error.

ASIDE: this also happens with SBBS executable as well, with default configuration, which is easy enough to change the sbbs.ini for.

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þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net

https://gitlab.synchro.net/main/sbbs/-/issues/400#note_2576

What happens if you run it with '-a 0.0.0.0'?

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þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net

https://gitlab.synchro.net/main/sbbs/-/issues/400#note_2578

@cyan will give that a try this weekend when I'm working on it again... I had just changed my config to launch the instance with sbbs.exe only using services with services.irc.ini (hsostname).

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þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net

https://gitlab.synchro.net/main/sbbs/-/issues/400#note_2683

Closing since I assume -a fixed it.

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þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net

close https://gitlab.synchro.net/main/sbbs/-/issues/400

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þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net