TCP/IP networking and registry keys

[Alan Chandler]

I spent most of the weekend trying to get Grand Prix Legends GPL to
work.  I achieved my first goal of getting it to run in server mode.

One of the things I needed to get the game to do, was to recognise
that there where some interfaces it could talk TCP/IP out of.  It took
me some time to realise that under windows it was doing this by
looking for the key

[System\\CurrentControlSet\\Services\\Class\\NetTrans]

and was then enumerating the keys under it to establish an IP address
ie the following

[System\\CurrentControlSet\\Services\\Class\\NetTrans\\0000]
"IPAddress"="10.0.10.100"


The thought occurred to me that maybe the tool the builds the registry
during wine install could actually create these keys - since it is
essentially a key part of the system (and other similar keys are also
built in the same way).

I don't think I have the skills to do it myself yet.


Alan

alan(a)chandlerfamily.org.uk
http://www.chandler.u-net.com

[Ove Kaaven]

On Mon, 19 Feb 2001, Alan Chandler wrote:
> and was then enumerating the keys under it to establish an IP address
> ie the following
>
> [System\\CurrentControlSet\\Services\\Class\\NetTrans\\0000]
> "IPAddress"="10.0.10.100"
>
> The thought occurred to me that maybe the tool the builds the registry
> during wine install could actually create these keys - since it is
> essentially a key part of the system (and other similar keys are also
> built in the same way).

Nah... the IP address can change between Wine invocations (PPP, DHCP, and
things like that), so it would have to be a dynamic key, generated at Wine
startup or something like that (I think we already have a couple of
those?), but then there's a question of how to get the OS's network
interface IPs portably...

[Chad Kitching]

"Ove Kaaven" <ovehk(a)ping.uio.no> wrote:
> On Mon, 19 Feb 2001, Alan Chandler wrote:
> > [System\\CurrentControlSet\\Services\\Class\\NetTrans\\0000]
> > "IPAddress"="10.0.10.100"
>
> Nah... the IP address can change between Wine invocations (PPP, DHCP, and
> things like that), so it would have to be a dynamic key, generated at Wine
> startup or something like that (I think we already have a couple of
> those?), but then there's a question of how to get the OS's network
> interface IPs portably...

I just checked on Windows 98, and when the system is set for DHCP, the
IPAddress and IPMask fields are "0.0.0.0".  I doubt that you'd really need
to set the correct, assigned IP address (since Win98 doesn't).  The other
side effect of this would be for a rather brain dead program like this, the
call would succeed since it would be listening on all interfaces.