Ethernet cards

[Zebra2k]

How would I do in a C/C++ program to detect if there is any ethernet card installed in a system?. If one exists, the program needs to get its interface name or the IP address to which it binds to.

Thanks for your help.
zb

 

[victorv]

If your target is diagnostic, you have to go deep in
the system and look for routines that manages cards not
ip address ( remember that your tcpip may not be still
configured or a card may have more than an address).

However, for normal purposes, you have first to configure, then test the network at system layer ( network neighb., ping local and after remote address, and so on) and then
use high level (application layer) api ( sockets, ftp, http)
making accurate attention to the return code of these.

 

[KeavDog]

You can try

int result = GetSystemMetrics( SM_NETWORK ) ;

if( 0 == result )
{
// No network
}