ifignore
provides a filtering mechanism for network applications which would
otherwise indiscriminately send packets over all network interfaces
attached to the machine.
The function consults the file /etc/inet/if.ignore
and returns a value to indicate whether or not
a particular network interface should
be ``ignored'' by the invoking server.
This indication should then be used by the server itself in determining
how to deal with the interface in question.
ifignore returns a non-zero value if if_name
should be ignored by serv_name; otherwise, zero is returned.