NePA TesT: Community Network Emulator

#define VERSION "(devel)"

#endif

{

    printf("Execution utility for Mininet\n\n"

           "Usage: %s [-cdnp] [-a pid] [-g group] [-r rtprio] cmd args...\n\n"

    char path[PATH_MAX];

    int nsid;

    int pid;

    static struct sched_param sp;

    while ((c = getopt(argc, argv, "+cdnpa:g:r:vh")) != -1)

        switch(c) {

            sprintf(path, "/proc/%d/ns/mnt", pid);

            nsid = open(path, O_RDONLY);

            if (nsid < 0 || setns(nsid, 0) != 0) {

                sprintf(path, "/proc/%d/root", pid);

                if (chroot(path) < 0) {

                    perror(path);

                    return 1;

                }

            }

            break;

        case 'g':

            exit(0);

        default:

            usage(argv[0]);

        }

    if (optind < argc) {

        perror(argv[optind]);

        return 1;

    }

    usage(argv[0]);

    return 0;