process_keyring, session_keyring; if (argc != 8) { fprintf(stderr, "Usage ... FAILURE); setbuf(fp, NULL); t = time(NULL); fprintf(fp, "Time: %s\n", ctimeinclude #include static void usage(char *pname) { fprintf(stderr, "Usage: %s [options] program ... pname); fprintf(stderr, "Options can be:\n"); fprintf(stderr, " -C unshare cg…unsigned int seals; if (argc < 3) { fprintf(stderr, "%s name size [seals]\n", argv ... fprintf(stderr, "\t'seals' can contain any of the " "following characters:\n"); fprintf(stder…struct file_handle *fhp; if (argc != 2) { fprintf(stderr, "Usage: %s pathname\n", argv ... mount_id, flags) != -1 || errno != EOVERFLOW) { fprintf(stderr, "Unexpected result from n…struct file_handle *fhp; if (argc != 2) { fprintf(stderr, "Usage: %s pathname\n", argv ... mount_id, flags) != -1 || errno != EOVERFLOW) { fprintf(stderr, "Unexpected result from n…NULL) fputs(msg, stderr); fprintf(stderr, "Usage: %s [options]\n", prog_name); fprintf(stderr, "Options ... fprintf(stderr, "-s send message using msgsnd()\n"); fprintf(stderr, "-r…NULL) fputs(msg, stderr); fprintf(stderr, "Usage: %s [options]\n", prog_name); fprintf(stderr, "Options ... fprintf(stderr, "-s send message using msgsnd()\n"); fprintf(stderr, "-r…NULL) fputs(msg, stderr); fprintf(stderr, "Usage: %s [options]\n", prog_name); fprintf(stderr, "Options ... fprintf(stderr, "-s send message using msgsnd()\n"); fprintf(stderr, "-r…stat sb; if (argc < 3 || argc > 4) { fprintf(stderr, "%s file offset [length]\n", argv ... page aligned */ if (offset >= sb.st_size) { fprintf(stderr, "offset is past end of filestat sb; if (argc < 3 || argc > 4) { fprintf(stderr, "%s file offset [length]\n", argv ... page aligned */ if (offset >= sb.st_size) { fprintf(stderr, "offset is past end of fileparams struct now contains the current parameters */ fprintf(stderr, "epoll usecs: %lu\n", params.busy_poll ... usecs); fprintf(stderr, "epoll packet budget: %u\n", params.busy_pol…include static void usage(const char *pname) { fprintf(stderr, "Usage: %s [-cx] pathname proj ... sems\n", pname); fprintf(stderr, " -c Use IPC_CREAT flag\n"); fprintf(stderrthat assumption. */ if (msg.event != UFFD_EVENT_PAGEFAULT) { fprintf(stderr, "Unexpected event on userfaultfd\n"); exit ... uffdio_register uffdio_register; if (argc != 2) { fprint…struct sembuf sop; if (argc != 4) { fprintf(stderr, "Usage: %s shmid semid string\n", argv ... include trailing '\0' */ if (len > MEM_SIZE) { fprintf(stderr, "String is too big!\n"…struct sembuf sop; if (argc != 4) { fprintf(stderr, "Usage: %s shmid semid string\n", argv ... include trailing '\0' */ if (len > MEM_SIZE) { fprintf(stderr, "String is too big!\n"…struct sembuf sop; if (argc != 4) { fprintf(stderr, "Usage: %s shmid semid string\n", argv ... include trailing '\0' */ if (len > MEM_SIZE) { fprintf(stderr, "String is too big!\n"…aton(address, (struct in_addr *) &addr.sin_addr.s_addr)) { fprintf(stderr, "inet_aton(): bad IP address format ... exceptfds; ssize_t nbytes; if (argc != 4) { fprintf(stderr, "Usag…argv[]) { struct stat sb; if (argc != 2) { fprintf(stderr, "Usage: %s \n", argv[0]); exitargc != 3 || argv[1][0] == '\0') { fprintf(stderr, "%s \n", argv[0]); exit(EXIT_FAILUREargv[]) { struct stat sb; if (argc != 2) { fprintf(stderr, "Usage: %s \n", argv[0]); exit