-int udp_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
-{
- struct inet_opt *inet = inet_sk(sk);
- struct sockaddr_in *usin = (struct sockaddr_in *) uaddr;
- struct rtable *rt;
- u32 saddr;
- int oif;
- int err;
-
-
- if (addr_len < sizeof(*usin))
- return -EINVAL;
-
- if (usin->sin_family != AF_INET)
- return -EAFNOSUPPORT;
-
- sk_dst_reset(sk);
-
- oif = sk->sk_bound_dev_if;
- saddr = inet->saddr;
- if (MULTICAST(usin->sin_addr.s_addr)) {
- if (!oif)
- oif = inet->mc_index;
- if (!saddr)
- saddr = inet->mc_addr;
- }
- err = ip_route_connect(&rt, usin->sin_addr.s_addr, saddr,
- RT_CONN_FLAGS(sk), oif,
- IPPROTO_UDP,
- inet->sport, usin->sin_port, sk);
- if (err)
- return err;
- if ((rt->rt_flags & RTCF_BROADCAST) && !sock_flag(sk, SOCK_BROADCAST)) {
- ip_rt_put(rt);
- return -EACCES;
- }
- if (!inet->saddr)
- inet->saddr = rt->rt_src; /* Update source address */
- if (!inet->rcv_saddr)
- inet->rcv_saddr = rt->rt_src;
- inet->daddr = rt->rt_dst;
- inet->dport = usin->sin_port;
- sk->sk_state = TCP_ESTABLISHED;
- inet->id = jiffies;
-
- sk_dst_set(sk, &rt->u.dst);
- return(0);
-}