[cw-discuss] Obtaining MAC Address while in xover office

[Dan Phillips]

Well I've never had/read a more concise answer in such a short time for any
question I've ever seen posted to this forum.  Thanks Robert, I'll stop
working on it from that standpoint unless you know of a way that I can call
the Linux command from within my app and receive the feedback?

On 3/7/07, Robert Shearman <rob at codeweavers.com> wrote:
>
> Dan Phillips wrote:
> > Ok, I know this is a wierd routine to do but I have a program that
> > grabs the MAC address of a local network card.  Actually, as long as
> > the network card is on the same subnet, you just tell the program the
> > IP of that card and it will get its MAC address.
> >
> > I have a vmware session running XP and the program will obtain the
> > vmware's MAC address, the SuSE 9.2 Linux host eth0's MAC address, and
> > it'll even get the MAC address of my laptop's wireless card as long as
> > the program runs from within the vmware session.  The problem comes in
> > when trying to run the program from the linux host through xover
> > v6.0.  The SendARP command reports an error when run regardless of
> > which IP address I use to lookup the MAC address.
> >
> > Here's a code snippet and the declaration showing where the routine is
> > stored, possibly this is an API call not yet implemented in xover or
> > maybe its implemented wrong or something (not trying to tell anyone
> > else how to program, I'm definitely not a programmer on a day to day
> > basis, just trying to get this working).
> >
> > Oh, I failed to mention this is done in Visual Basic 6.x (patched)
> >
> > Private Declare Function inet_addr Lib "wsock32.dll" _
> >  (ByVal s As String) As Long
> >
> > Private Declare Function SendARP Lib " iphlpapi.dll" _
> >  (ByVal DestIP As Long, _
> >   ByVal SrcIP As Long, _
> >   pMacAddr As Long, _
> >   PhyAddrLen As Long) As Long
> >
> > Here is the command that generates the error:
> >  If SendARP(dwRemoteIP, 0&, pMacAddr, PhyAddrLen) = NO_ERROR Then
> >
> > Again, no code change, the program works perfectly within the vmware
> > session using XP.
> >
> > Hints, Ideas, Gripes, shotty comments?   :)
>
> The SendARP function isn't implemented in CrossOver.
>
> In Linux, you can use arping command from the command line instead.
> For example:
> $ arping -c 1 172.16.0.12
> WARNING: interface is ignored: Operation not permitted
> ARPING 172.16.0.12 from 172.16.0.11 eth0
> Unicast reply from 172.16.0.12 [01:FE:9B:3E:BA:AD]  50.549ms
> Sent 1 probes (1 broadcast(s))
> Received 1 response(s)
>
> Of course, if the program wants to do something with the MAC address
> then this isn't going to help.
>
> --
> Rob Shearman
>
>


-- 
Thanks, Dan Phillips
Registered Linux User #373395
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