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timeout.tv_sec = 3;
timeout.tv_usec = 0;

FD_ZERO(&fds);
FD_SET(sock_fd, &fds);

while(running) {
        printf("Waiting for connect");

        if((result = select(32, &fds, NULL, NULL, &timeout)) == -1) {
                printf("select returned an error");
                return -1;
        }

        if(result == 0) {
                printf("no connections");
        }
}