[lwip-devel] [bug #44649] lwip_socket_drop_registered_memberships

[Mateusz Klatecki]

URL:
  <http://savannah.nongnu.org/bugs/?44649>

                 Summary: lwip_socket_drop_registered_memberships
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: klatecki
            Submitted on: Fri 27 Mar 2015 11:35:30 AM GMT
                Category: sockets/netconn
                Severity: 3 - Normal
              Item Group: Crash Error
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: 
            lwIP version: git head

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Details:

I think in lwip_socket_drop_registered_memberships is error

netconn_join_leave_group has parameters:
 struct netconn *conn,
 const ip_addr_t *multiaddr,
 const ip_addr_t *netif_addr,
 enum netconn_igmp join_or_leave


but is run in that way: 
netconn_join_leave_group(sockets[s].conn,
&socket_ipv4_multicast_memberships[i].if_addr,
        &socket_ipv4_multicast_memberships[i].multi_addr, NETCONN_LEAVE);

so multiaddr and netif_addr are swaped.


I think this is correct:
      netconn_join_leave_group(sockets[s].conn,
&socket_ipv4_multicast_memberships[i].multi_addr, 
                  &socket_ipv4_multicast_memberships[i].if_addr, NETCONN_LEAVE);




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