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lwip: Fix bug with LWIP_SOCKET_OFFSET & IGMP group support

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Angus Gratton 2017-10-04 10:18:10 +11:00 committed by Angus Gratton
parent 48d9d507aa
commit 3f83914f7a
1 changed files with 3 additions and 2 deletions
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5
components/lwip/api/sockets.c
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@ -3139,13 +3139,14 @@ static void lwip_socket_drop_registered_memberships(int s)
(default initialization is to 0) */
int sa = s + 1;
int i;
struct lwip_sock *sock = get_socket(s);
LWIP_ASSERT("socket has no netconn", sockets[s].conn != NULL);
LWIP_ASSERT("socket has no netconn", sock->conn != NULL);
for (i = 0; i < LWIP_SOCKET_MAX_MEMBERSHIPS; i++) {
if (socket_multicast_memberships[i].sa == sa) {
socket_multicast_memberships[i].sa = 0;
netconn_join_leave_group(sockets[s].conn,
netconn_join_leave_group(sock->conn,
&socket_multicast_memberships[i].multi_addr,
&socket_multicast_memberships[i].if_addr,
NETCONN_LEAVE);