If I am understanding correctly you might try using either the netstat or route commands to find your default gateway, and if there is none then save things to the local database.

The problem with this approach will be determining the right syntax to use for the current platform your code is running on. Unfortunately the syntax is a bit different from windows to os x to linux, but they will all report on the routing tables, including the default router, at which point you just need to parse the command output (again different from platform to platform) an take the appropriate action. The output can be rather detailed and verbose, but should not too hard to parse.

Regards,

Daryl


On 6/13/13 4:19 PM, Dr. Hawkins wrote:
On Thu, Jun 13, 2013 at 3:11 PM, Daryl Williams
<da...@synergetic-data.com> wrote:
It sounds like what you are really looking for is a local gateway to get to
the Internet, and to where ever the time entries are made?

No; actually the opposite.

If I have a connection, presumably by vpn (this is for postgres), I
want to use it.  If there is no connection to the server, I want to
put things into a local sqlite database, and use that to update the
postgres base later.  I'm looking for a quick way to achieve this,
rather than something with a lengthy timeout



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