+ static const struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "version" , no_argument, NULL, ARG_VERSION },
+ { "no-pager", no_argument, NULL, ARG_NO_PAGER },
+ { "follow", no_argument, NULL, 'f' },
+ { "output", required_argument, NULL, 'o' },
+ { "all", no_argument, NULL, 'a' },
+ { "lines", optional_argument, NULL, 'n' },
+ { "no-tail", no_argument, NULL, ARG_NO_TAIL },
+ { "new-id128", no_argument, NULL, ARG_NEW_ID128 },
+ { "quiet", no_argument, NULL, 'q' },
+ { "merge", no_argument, NULL, 'm' },
+ { "this-boot", no_argument, NULL, 'b' },
+ { "directory", required_argument, NULL, 'D' },
+ { "header", no_argument, NULL, ARG_HEADER },
+ { "priority", no_argument, NULL, 'p' },
+ { "setup-keys", no_argument, NULL, ARG_SETUP_KEYS },
+ { "interval", required_argument, NULL, ARG_INTERVAL },
+ { "verify", no_argument, NULL, ARG_VERIFY },
+ { "verify-key", required_argument, NULL, ARG_VERIFY_KEY },
+ { "disk-usage", no_argument, NULL, ARG_DISK_USAGE },
+ { "cursor", required_argument, NULL, 'c' },
+ { "since", required_argument, NULL, ARG_SINCE },
+ { "until", required_argument, NULL, ARG_UNTIL },
+ { "unit", required_argument, NULL, 'u' },
+ { NULL, 0, NULL, 0 }
+ };
+
+ int c, r;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while ((c = getopt_long(argc, argv, "hfo:an::qmbD:p:c:u:", options, NULL)) >= 0) {
+
+ switch (c) {
+
+ case 'h':
+ help();
+ return 0;
+
+ case ARG_VERSION:
+ puts(PACKAGE_STRING);
+ puts(DISTRIBUTION);
+ puts(SYSTEMD_FEATURES);
+ return 0;
+
+ case ARG_NO_PAGER:
+ arg_no_pager = true;
+ break;
+
+ case 'f':
+ arg_follow = true;
+ signal(SIGWINCH, columns_cache_reset);
+ break;
+
+ case 'o':
+ arg_output = output_mode_from_string(optarg);
+ if (arg_output < 0) {
+ log_error("Unknown output format '%s'.", optarg);
+ return -EINVAL;
+ }
+
+ if (arg_output == OUTPUT_EXPORT ||
+ arg_output == OUTPUT_JSON ||
+ arg_output == OUTPUT_JSON_PRETTY ||
+ arg_output == OUTPUT_JSON_SSE ||
+ arg_output == OUTPUT_CAT)
+ arg_quiet = true;
+
+ break;
+
+ case 'a':
+ arg_show_all = true;
+ break;
+
+ case 'n':
+ if (optarg) {
+ r = safe_atou(optarg, &arg_lines);
+ if (r < 0 || arg_lines <= 0) {
+ log_error("Failed to parse lines '%s'", optarg);
+ return -EINVAL;
+ }
+ } else
+ arg_lines = 10;
+
+ break;
+
+ case ARG_NO_TAIL:
+ arg_no_tail = true;
+ break;
+
+ case ARG_NEW_ID128:
+ arg_action = ACTION_NEW_ID128;
+ break;
+
+ case 'q':
+ arg_quiet = true;
+ break;
+
+ case 'm':
+ arg_merge = true;
+ break;
+
+ case 'b':
+ arg_this_boot = true;
+ break;
+
+ case 'D':
+ arg_directory = optarg;
+ break;
+
+ case 'c':
+ arg_cursor = optarg;
+ break;
+
+ case ARG_HEADER:
+ arg_action = ACTION_PRINT_HEADER;
+ break;
+
+ case ARG_VERIFY:
+ arg_action = ACTION_VERIFY;
+ break;
+
+ case ARG_DISK_USAGE:
+ arg_action = ACTION_DISK_USAGE;
+ break;
+
+#ifdef HAVE_GCRYPT
+ case ARG_SETUP_KEYS:
+ arg_action = ACTION_SETUP_KEYS;
+ break;
+
+
+ case ARG_VERIFY_KEY:
+ arg_action = ACTION_VERIFY;
+ arg_verify_key = optarg;
+ arg_merge = false;
+ break;
+
+ case ARG_INTERVAL:
+ r = parse_usec(optarg, &arg_interval);
+ if (r < 0 || arg_interval <= 0) {
+ log_error("Failed to parse sealing key change interval: %s", optarg);
+ return -EINVAL;
+ }
+ break;
+#else
+ case ARG_SETUP_KEYS:
+ case ARG_VERIFY_KEY:
+ case ARG_INTERVAL:
+ log_error("Forward-secure sealing not available.");
+ return -ENOTSUP;
+#endif
+
+ case 'p': {
+ const char *dots;
+
+ dots = strstr(optarg, "..");
+ if (dots) {
+ char *a;
+ int from, to, i;
+
+ /* a range */
+ a = strndup(optarg, dots - optarg);
+ if (!a)
+ return log_oom();
+
+ from = log_level_from_string(a);
+ to = log_level_from_string(dots + 2);
+ free(a);
+
+ if (from < 0 || to < 0) {
+ log_error("Failed to parse log level range %s", optarg);
+ return -EINVAL;
+ }
+
+ arg_priorities = 0;
+
+ if (from < to) {
+ for (i = from; i <= to; i++)
+ arg_priorities |= 1 << i;
+ } else {
+ for (i = to; i <= from; i++)
+ arg_priorities |= 1 << i;
+ }
+
+ } else {
+ int p, i;
+
+ p = log_level_from_string(optarg);
+ if (p < 0) {
+ log_error("Unknown log level %s", optarg);
+ return -EINVAL;
+ }
+
+ arg_priorities = 0;
+
+ for (i = 0; i <= p; i++)
+ arg_priorities |= 1 << i;
+ }
+
+ break;
+ }
+
+ case ARG_SINCE:
+ r = parse_timestamp(optarg, &arg_since);
+ if (r < 0) {
+ log_error("Failed to parse timestamp: %s", optarg);
+ return -EINVAL;
+ }
+ arg_since_set = true;
+ break;
+
+ case ARG_UNTIL:
+ r = parse_timestamp(optarg, &arg_until);
+ if (r < 0) {
+ log_error("Failed to parse timestamp: %s", optarg);
+ return -EINVAL;
+ }
+ arg_until_set = true;
+ break;
+
+ case 'u':
+ arg_unit = optarg;
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ log_error("Unknown option code %c", c);
+ return -EINVAL;
+ }