Алгоритми маршрутизації в мережах

rip_sock = -1;

/* get non-broadcast sockets to listen to queries.

*/

for (ifp = ifnet; ifp != 0; ifp = ifp->int_next) {

if (ifp->int_state & IS_REMOTE)

continue;

if (ifp->int_rip_sock < 0) {

addr = ((ifp->int_if_flags & IFF_POINTOPOINT)

? ifp->int_dstaddr

: ifp->int_addr);

ifp->int_rip_sock = get_rip_sock(addr, 0);

}

}

fix_select();

age(0);

}

}

/* turn on RIP multicast input via an interface

*/

static void

rip_mcast_on(struct interface *ifp)

{

struct ip_mreq m;

if (!IS_RIP_IN_OFF(ifp->int_state)

&& (ifp->int_if_flags & IFF_MULTICAST)