if (unlikely(!dest))
return -EDESTADDRREQ;
- if (unlikely(dest->family != AF_TIPC))
+ if (unlikely((m->msg_namelen < sizeof(*dest)) ||
+ (dest->family != AF_TIPC)))
return -EINVAL;
needs_conn = (sock->state != SS_READY);
restart:
if (unlikely((skb_queue_len(&sock->sk->sk_receive_queue) == 0) &&
(flags & MSG_DONTWAIT))) {
- res = (sz_copied == 0) ? -EWOULDBLOCK : 0;
+ res = -EWOULDBLOCK;
goto exit;
}
exit:
up(&tsock->sem);
- return res ? res : sz_copied;
+ return sz_copied ? sz_copied : res;
}
/**
if (sock->state == SS_READY)
return -EOPNOTSUPP;
- /* MOVE THE REST OF THIS ERROR CHECKING TO send_msg()? */
+ /* Issue Posix-compliant error code if socket is in the wrong state */
+
if (sock->state == SS_LISTENING)
return -EOPNOTSUPP;
if (sock->state == SS_CONNECTING)
if (sock->state != SS_UNCONNECTED)
return -EISCONN;
- if ((destlen < sizeof(*dst)) || (dst->family != AF_TIPC) ||
- ((dst->addrtype != TIPC_ADDR_NAME) && (dst->addrtype != TIPC_ADDR_ID)))
+ /*
+ * Reject connection attempt using multicast address
+ *
+ * Note: send_msg() validates the rest of the address fields,
+ * so there's no need to do it here
+ */
+
+ if (dst->addrtype == TIPC_ADDR_MCAST)
return -EINVAL;
/* Send a 'SYN-' to destination */
m.msg_name = dest;
+ m.msg_namelen = destlen;
if ((res = send_msg(NULL, sock, &m, 0)) < 0) {
sock->state = SS_DISCONNECTING;
return res;