- int left;
- unsigned i;
-
- assert(argc >= 0);
- assert(argv);
-
- left = argc - optind;
-
- if (left <= 0) {
- log_error("Missing command.");
- help();
- return -EINVAL;
- }
-
- for (i = 0; i < ELEMENTSOF(verbs); i++)
- if (streq(argv[optind], verbs[i].verb))
- break;
-
- if (i >= ELEMENTSOF(verbs)) {
- log_error("Unknown command %s.", argv[optind]);
- help();
- return -EINVAL;
- }
-
- switch (verbs[i].argc_cmp) {
- case EQUAL:
- if (left != verbs[i].argc) {
- log_error("Invalid number of arguments.");
- help();
- return -EINVAL;
- }
-
- break;
-
- case MORE:
- if (left < verbs[i].argc) {
- log_error("Too few arguments.");
- help();
- return -EINVAL;
- }
-
- break;
- case LESS:
- if (left > verbs[i].argc) {
- log_error("Too many arguments.");
- help();
- return -EINVAL;
- }
-
- break;
- default:
- assert_not_reached("Unknown comparison operator.");
- }
-
- return verbs[i].dispatch(argv + optind, left);
+ return dispatch_verb(argc, argv, verbs, NULL);