MyHandler: set ip address to an invalid one when getsockname() returns error.

    static void addSDES(int s, const sp<ABuffer> &buffer) {

        struct sockaddr_in addr;

        socklen_t addrSize = sizeof(addr);

        CHECK_EQ(0, getsockname(s, (sockaddr *)&addr, &addrSize));

        if (getsockname(s, (sockaddr *)&addr, &addrSize) != 0) {

            inet_aton("0.0.0.0", &(addr.sin_addr));

        }

        uint8_t *data = buffer->data() + buffer->size();

        data[0] = 0x80 | 1;