Regression in hostname handling behavior during IP entry

[bbrauchl]

Moonlight Version

1.6.18

Device Type

webOS TV

Device Model

LG

Device OS

webOS 03.40.82

Host OS

None

Host Software

None

Host Setup

N/A

Bug Description

Add computer UI input no longer will accept a hostname as the input. (the OK button never becomes active)
This seems to be related to #354 where sockaddr_parse was introduced to validate this input in src/app/ui/launcher/add.dialog.c.

Reproduction Steps

1. Add computer
2. Attempt to enter a hostname

Expected Behavior

Hostname should be accepted