linux加入多播组setsockopt返回errno 19设备未找到

我已经设置了UDP非阻塞套接字 . 我正在创建套接字，绑定它，并加入这样的多播组：

int hopLimit = 1;
int bAllowMultiple = 1;
in_addr localAddr;
localAddr.s_addr = 0;

in_addr groupAddress;
groupAddress.s_addr = inet_addr(ADDRESS);

sockaddr_in groupEndPoint;
groupEndPoint.sin_family = AF_INET;
groupEndPoint.sin_addr = groupAddress;
groupEndPoint.sin_port = htons(PORT);

SOCKET udpsocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);

if(udpsocket == -1){
    printf("Socket fail\n%d\n", errno);
    return 1;
}

if(setsockopt(udpsocket, IPPROTO_IP, IP_MULTICAST_TTL, (char *)&hopLimit, sizeof(hopLimit))==-1){
    printf("sockopt failed: IP_MULTICAST_TTL\n%d\n", errno);
    return 1;
}
if(setsockopt(udpsocket, IPPROTO_IP, IP_MULTICAST_IF, (char *)&localAddr, sizeof(localAddr))==-1){
    printf("sockopt failed: IP_MULTICAST_IF\n%d\n", errno);
    return 1;
}
if(setsockopt(udpsocket, SOL_SOCKET, SO_REUSEADDR, &bAllowMultiple, sizeof(bAllowMultiple))==-1){
    printf("sockopt failed: SO_REUSEADDR\n%d\n", errno);
    return errno;
}
        // Set to non-blocking mode
unsigned long bMode = 1;
if(ioctl( udpsocket, FIONBIO, &bMode )==-1){
    printf("ioctl failed\n%d\n", errno);
    return errno;
}
sockaddr_in localEndPoint;
localEndPoint.sin_family = AF_INET;
localEndPoint.sin_addr.s_addr = localAddr.s_addr; 
localEndPoint.sin_port = groupEndPoint.sin_port;

        // Bind the socket to the port
int r = bind(udpsocket, (sockaddr*)&localEndPoint, sizeof(localEndPoint));
if (r != 0)
{
    printf("Bind failed\n%d\n", errno);
    return errno;
}
// Join the multicast group
struct ip_mreq imr;
imr.imr_multiaddr = groupEndPoint.sin_addr;
imr.imr_interface.s_addr = groupEndPoint.sin_addr.s_addr;

r = setsockopt(udpsocket, IPPROTO_IP, IP_ADD_MEMBERSHIP, &imr, sizeof(imr));
printf("%d\n",r);
if (r == -1){
    printf("sockopt failed: IP_ADD_MEMBERSHIP\n%d\n", errno);
    return errno;
}

前3个setsockopt调用 - MULTICAST_TTL，MULTICAST-IF和REUSEADDRESS - 工作正常，并且它绑定 . 当我然后尝试加入多播组时，它返回错误19 - 未找到设备 . 将imr接口地址更改为INADDR_ANY意味着找到了设备，但程序赢了't receive packets. I'已更改了ADDRESS，我知道它在多播范围内 . 我的机器上的eth0已启用多播 . 我已经尝试使用 struct ip_mreqn imr 并更改了接口以适当地解决，没有变化 . 我运行了一个堆栈跟踪，但它没有更多的信息，只是说setsockopt失败了errno 19 .

有没有人有任何想法？我在这里有点绝望，我已经这么久了 .