Scanning machines on a network

[Dar Scott]

On Monday, March 11, 2002, at 06:09 PM, Sarah Reichelt wrote:
> Here is a script to get your local IP address and store it in a field:

Thanks, Sarah.  I thought it would be something like that.

I haven't tried this on a multi-homed system, but it looks to me 
that this approach allows implementers to account for a system with 
multiple IP addresses.  This is a plus!

I realize that this might be the best that can be done with 
Revolution.  However, there are a few things about this that bother 
me:

1.
Some computers are not on the Internet, but are on some local 
network.  Using some known internet site would not work.

2.
This depends on some known Internet site being up and the 
connection to the Internet is up.

3.
I'm not sure what to think about the manners of connecting to 
"yahoo.com".  Hmmm.  ;-)  Maybe the first line the the example 
handler could be changed to this:

   put line 1 of hostnametoaddress("www.runrev.com")& ":80|testSocket" \
       into testSock


I've thought about connecting to the local computer (in the same 
app) and then using hostAddress and peerAddress on both ends; maybe 
one of those four will work.  I suspect not, but I'm so new to 
Revolution, I wouldn't be surprised if one does work.

I _have_ tried opening with UDP which always succeeds, but 
hostAddress returns 0.0.0.0 in that case.  (I'm using OS X.)

So...  Anybody have another method?

Dar Scott