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Improve getsockopt for IP_MULTICAST_LOOP
Changes getsockopt handling for IP_MULTICAST_LOOP to test for UDP and use macro. Also fixes debug message.
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@ -3092,14 +3092,10 @@ lwip_getsockopt_impl(int s, int level, int optname, void *optval, socklen_t *opt
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s, *(u32_t *)optval));
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break;
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case IP_MULTICAST_LOOP:
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LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB(sock, *optlen, u8_t);
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if ((sock->conn->pcb.udp->flags & UDP_FLAGS_MULTICAST_LOOP) != 0) {
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*(u8_t *)optval = 1;
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} else {
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*(u8_t *)optval = 0;
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}
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LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB_TYPE(sock, *optlen, u8_t, NETCONN_UDP);
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*(u8_t *)optval = udp_is_flag_set(sock->conn->pcb.udp, UDP_FLAGS_MULTICAST_LOOP) ? 1 : 0;
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LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_LOOP) = %d\n",
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s, *(int *)optval));
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s, *(u8_t *)optval));
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break;
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#endif /* LWIP_IPV4 && LWIP_MULTICAST_TX_OPTIONS && LWIP_UDP */
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default:
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