Interface index

[sysctl]

Hi,


How can I get interface index when enumerating interfaces using GetOpt with socket option KSoInetNextInterface?

The option fills in a TSoInetInterfaceInfo structure, but it doesn't contain interface index (a piece of information that I need).

User::LeaveIfError(sock.SetOpt(KSoInetEnumInterfaces, KSolInetIfCtrl));
TPckgBuf<TSoInetInterfaceInfo> iface;
while(sock.GetOpt(KSoInetNextInterface, KSolInetIfCtrl, iface) == KErrNone)
{
	// ...
}

Alternatively, how can I find interface index at all, using any piece of information (like interface IP address)? I tried GetOpt(KSoInetIfQueryByIndex, KSolInetIfQuery, ...), but it returns -5 (KErrNotSupported).

RSocket sock;
User::LeaveIfError(sock.Open(serv, KAfInet, KSockDatagram, KProtocolInetUdp));

//...

TPckgBuf<TSoInetIfQuery> ifq;
ifq().iSrcAddr = someIPAddress;

// this leaves with -5
User::LeaveIfError(sock.GetOpt(KSoInetIfQueryBySrcAddr, KSolInetIfQuery, ifq));

[sysctl]

If anyone is looking for the answer, this question was answered at NewLC.

[tonmoy_symbian]

Hi sysctl,

I got one solution to find interface index. Here is the code snippet that returns my interface index:

---------------------------------------------------------------------
void CClientSocket::testAdapterInfo()
{
RSocket iSocket;
RSocketServ iServer;
TInt result;

result = iServer.Connect();
result = iSocket.Open(iServer,KAfInet,KSockDatagram,KProtocolInetUdp);

TPckgBuf<TSoInetInterfaceInfo>iface;
TPckgBuf<TSoInetIfQuery>ifq;


// init the iterator

result = iSocket.SetOpt(KSoInetEnumInterfaces, KSolInetIfCtrl);

while(iSocket.GetOpt(KSoInetNextInterface, KSolInetIfCtrl, iface) == KErrNone)
{
TSoInetInterfaceInfo &info = iface();

if(info.iState == EIfUp){
ifq().iName = info.iName;
result = iSocket.GetOpt(KSoInetIfQueryByName, KSolInetIfQuery, ifq); // returns 0
result = ifq().iIndex; // returns index (in my case, returns 2)


}
}
}
--------------------------------------------------------------------------
Cheers!!!!

Tonmoy