static void parse_args(int argc, char **argv,
const char * const *usage_str,
int *types, char **object,
- char **name, char **value)
+ char **name, char **value, int min_nonopt_args)
{
int ret;
char *type_str = NULL;
+ int max_nonopt_args = 1;
optind = 1;
while (1) {
}
}
+ if (name)
+ max_nonopt_args++;
+ if (value)
+ max_nonopt_args++;
+
+ if (check_argc_min(argc - optind, min_nonopt_args) ||
+ check_argc_max(argc - optind, max_nonopt_args))
+ usage(usage_str);
+
*types = 0;
if (type_str) {
if (!strcmp(type_str, "s") || !strcmp(type_str, "subvol")) {
}
}
- if (object && optind < argc)
- *object = argv[optind++];
- if (name && optind < argc)
+ *object = argv[optind++];
+ if (optind < argc)
*name = argv[optind++];
- if (value && optind < argc)
+ if (optind < argc)
*value = argv[optind++];
- if (optind != argc) {
- error("unexpected agruments found");
- usage(usage_str);
- }
-
- if (!*types && object && *object) {
+ if (!*types) {
ret = autodetect_object_types(*object, types);
if (ret < 0) {
error("failed to detect object type: %s",
char *name = NULL;
int types = 0;
- if (check_argc_min(argc, 2) || check_argc_max(argc, 5))
- usage(cmd_property_get_usage);
-
parse_args(argc, argv, cmd_property_get_usage, &types, &object, &name,
- NULL);
- if (!object) {
- error("invalid arguments");
- usage(cmd_property_get_usage);
- }
+ NULL, 1);
if (name)
ret = setget_prop(types, object, name, NULL);
char *value = NULL;
int types = 0;
- if (check_argc_min(argc, 4) || check_argc_max(argc, 6))
- usage(cmd_property_set_usage);
-
parse_args(argc, argv, cmd_property_set_usage, &types,
- &object, &name, &value);
- if (!object || !name || !value) {
- error("invalid arguments");
- usage(cmd_property_set_usage);
- }
+ &object, &name, &value, 3);
ret = setget_prop(types, object, name, value);
char *object = NULL;
int types = 0;
- if (check_argc_min(argc, 2) || check_argc_max(argc, 4))
- usage(cmd_property_list_usage);
-
parse_args(argc, argv, cmd_property_list_usage,
- &types, &object, NULL, NULL);
- if (!object) {
- error("invalid arguments");
- usage(cmd_property_list_usage);
- }
+ &types, &object, NULL, NULL, 1);
ret = dump_props(types, object, 1);