According to the the dictionary:
openSockets: Returns a list of the currently open sockets.
I believe they mean on the localhost, although it doesn't specifically
say so.
I think you will need to use the shell command to ping whatever
address(es) you had in mind. On a class C, or 24 bit CIDR network there
may be up to 254 addresses in use. If you wanted to check them all you
would have to loop through the address range with something like the
following:
put "192.168.1" into myNetwork
repeat with ipOctet = 1 to 254
put shell("ping -c1 " & myNetwork & ipOctet) into tResult
if tResult is not empty then
-- check result
end if
end repeat
Please note the "-c 1" option passed to ping, this will cause ping to
send only one packet. By default on unix platforms ping will continue
until interrupted, on windows ping quits after 4 packets have been sent.
Either way be aware that your script will block until the repeat
sequence is done unless you do this as a message event.
If on the other hand you have a set of known clients you provide a
service to and you just want to see if they are around, you could send
out a broadcast packet on the network (address 255) and have the clients
available answer up when they get it.
Hope this is of some help.
Daryl
On 6/13/13 2:13 PM, dunb...@aol.com wrote:
Richard.
Would the "openSockets" function do what you need? Not as direct as what OS9
could do, but those days are over. And I am sure there must be an appleScript gadget that
could query the network.
Craig Newman
-----Original Message-----
From: Dr. Hawkins <doch...@gmail.com>
To: How to use LiveCode <use-livecode@lists.runrev.com>
Sent: Thu, Jun 13, 2013 5:02 pm
Subject: a *fast* check for whether another machine is on the local network?
Is there a *fast* way to see if another machine is currently on the
local network, by name (somemachine.local) or otherwise, from within
livecode?
There's always sending a message and waiting for it to hang, but I'd
like something that happens quickly.
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