+static int com_help(void)
+{
+ int ret;
+ char *errctx, *help;
+ const char *arg;
+ const struct lls_command *cmd;
+
+ ret = lls_check_arg_count(sublpr, 0, 1, &errctx);
+ if (ret < 0)
+ return lopsub_error(ret, &errctx);
+ if (lls_num_inputs(sublpr) == 0) {
+ show_subcommand_summary(OPT_GIVEN(HELP, LONG));
+ return 0;
+ }
+ arg = lls_input(0, sublpr);
+ ret = lls_lookup_subcmd(arg, dss_suite, &errctx);
+ if (ret < 0)
+ return lopsub_error(ret, &errctx);
+ cmd = lls_cmd(ret, dss_suite);
+ if (OPT_GIVEN(HELP, LONG))
+ help = lls_long_help(cmd);
+ else
+ help = lls_short_help(cmd);
+ printf("%s\n", help);
+ free(help);
+ return 0;
+}
+EXPORT_CMD_HANDLER(help);
+