INNER CODE UNIT · C

nfds

ukanth/afwall · external/nflog/nflog.c:645

    nfds = (sock_fd > stdin_fd ? sock_fd : stdin_fd) + 1;

    if (fcntl(sock_fd,  F_SETFL, O_NONBLOCK) < 0 ||
        fcntl(stdin_fd, F_SETFL, O_NONBLOCK) < 0) {
        perror("fcntl");
        exit(EXIT_FAILURE);
    }

    fprintf(stderr, "Enhanced NFLOG started on queue %u\n", qnum);

    // Enhanced main loop with better error handling
    while (!shutdown_requested) {
        fd_set fds;
        char c;
        int select_result;

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

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