Function: network-interface-info

network-interface-info is a function defined in process.c.

Signature

(network-interface-info IFNAME)

Documentation

Return information about network interface named IFNAME.

The return value is a list (ADDR BCAST NETMASK HWADDR FLAGS), where ADDR is the layer 3 address, BCAST is the layer 3 broadcast address, NETMASK is the layer 3 network mask, HWADDR is the layer 2 address, and FLAGS is the current flags of the interface.

Data that is unavailable is returned as nil.

Probably introduced at or before Emacs version 22.1.

Source Code

// Defined in /usr/src/emacs/src/process.c
{
#if ((defined HAVE_NET_IF_H			       \
      && (defined SIOCGIFADDR || defined SIOCGIFHWADDR \
	  || defined SIOCGIFFLAGS))		       \
     || defined WINDOWSNT)
  return network_interface_info (ifname);
#else
  return Qnil;
#endif
}