Add cmd_process() to process commands in one place
We currently have the same code in hush.c and main.c. This brings the
code into one place.
As an added feature, if the command function returns CMD_RET_USAGE then
cmd_process() will print a usage message for the command before
returning the standard failure code of 1.
ARM code size increases about 32 bytes with this clean-up.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/command.c b/common/command.c
index fe29075..aa0fb0a 100644
--- a/common/command.c
+++ b/common/command.c
@@ -499,7 +499,7 @@
* @param argv Arguments
* @return 0 if command succeeded, else non-zero (CMD_RET_...)
*/
-int cmd_call(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int cmd_call(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int result;
@@ -508,3 +508,42 @@
debug("Command failed, result=%d", result);
return result;
}
+
+enum command_ret_t cmd_process(int flag, int argc, char * const argv[],
+ int *repeatable)
+{
+ enum command_ret_t rc = CMD_RET_SUCCESS;
+ cmd_tbl_t *cmdtp;
+
+ /* Look up command in command table */
+ cmdtp = find_cmd(argv[0]);
+ if (cmdtp == NULL) {
+ printf("Unknown command '%s' - try 'help'\n", argv[0]);
+ return 1;
+ }
+
+ /* found - check max args */
+ if (argc > cmdtp->maxargs)
+ rc = CMD_RET_USAGE;
+
+#if defined(CONFIG_CMD_BOOTD)
+ /* avoid "bootd" recursion */
+ else if (cmdtp->cmd == do_bootd) {
+ if (flag & CMD_FLAG_BOOTD) {
+ puts("'bootd' recursion detected\n");
+ rc = CMD_RET_FAILURE;
+ } else {
+ flag |= CMD_FLAG_BOOTD;
+ }
+ }
+#endif
+
+ /* If OK so far, then do the command */
+ if (!rc) {
+ rc = cmd_call(cmdtp, flag, argc, argv);
+ *repeatable &= cmdtp->repeatable;
+ }
+ if (rc == CMD_RET_USAGE)
+ rc = cmd_usage(cmdtp);
+ return rc;
+}