+ case ARG_FACILITY: {
+ const char *p;
+
+ for (p = optarg;;) {
+ _cleanup_free_ char *fac = NULL;
+ int num;
+
+ r = extract_first_word(&p, &fac, ",", 0);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse facilities: %s", optarg);
+ if (r == 0)
+ break;
+
+ if (streq(fac, "help")) {
+ help_facilities();
+ return 0;
+ }
+
+ num = log_facility_unshifted_from_string(fac);
+ if (num < 0)
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "Bad --facility= argument \"%s\".", fac);
+
+ if (set_ensure_put(&arg_facilities, NULL, INT_TO_PTR(num)) < 0)
+ return log_oom();
+ }
+
+ break;
+ }
+