[guardian-dev] Connecting to nearby peers without user interaction

[Michael Rogers]

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On 02/02/15 16:51, Nathan of Guardian wrote:
> I think this all works without being on a WiFi LAN of any kind. It
> is similar to the code I have in Gilga.

It turns out that my peer-discovery code does almost exactly the same
thing as FireChat. If you run peer-discovery within range of a
FireChat device you'll see something like this:

Discovered TXT record:
	Android_3a39 1e:66:aa:dc:95:88
	firechat._firechat._tcp.local.
	channel = 15
	mac = 1C:66:AA:DC:95:87

Whereas for a peer-discovery peer it would show this:

Discovered TXT record:
	Android_3a39 1e:66:aa:dc:95:88
	foo._example._tcp.local.
	bt = 1C:66:AA:DC:95:87

In both cases, the Bluetooth MAC address is published in a DNS TXT
record via Wi-Fi Direct service discovery. Reverse engineering the
rest of the FireChat protocol is left as an exercise for the reader. ;-)

Cheers,
Michael
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