command: Introduce functions to obtain command arguments
Add some functions which provide an argument to a command, or NULL if
the argument does not exist.
Use the same numbering as argv[] since it seems less confusing than the
previous idea.
Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: Tom Rini <trini@konsulko.com>
diff --git a/cmd/booti.c b/cmd/booti.c
index dc73c83..2db8f4a 100644
--- a/cmd/booti.c
+++ b/cmd/booti.c
@@ -95,8 +95,8 @@
* Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
* have a header that provide this informaiton.
*/
- if (bootm_find_images(image_load_addr, argc > 1 ? argv[1] : NULL,
- argc > 2 ? argv[2] : NULL, relocated_addr,
+ if (bootm_find_images(image_load_addr, cmd_arg1(argc, argv),
+ cmd_arg2(argc, argv), relocated_addr,
image_size))
return 1;
diff --git a/cmd/bootz.c b/cmd/bootz.c
index bcf232b..a652879 100644
--- a/cmd/bootz.c
+++ b/cmd/bootz.c
@@ -54,8 +54,8 @@
* Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
* have a header that provide this informaiton.
*/
- if (bootm_find_images(image_load_addr, argc > 1 ? argv[1] : NULL,
- argc > 2 ? argv[2] : NULL, images->ep,
+ if (bootm_find_images(image_load_addr, cmd_arg1(argc, argv),
+ cmd_arg2(argc, argv), images->ep,
zi_end - zi_start))
return 1;
diff --git a/cmd/disk.c b/cmd/disk.c
index 3d7bc2f..92eaa02 100644
--- a/cmd/disk.c
+++ b/cmd/disk.c
@@ -40,8 +40,8 @@
bootstage_mark(BOOTSTAGE_ID_IDE_BOOT_DEVICE);
- part = blk_get_device_part_str(intf, (argc == 3) ? argv[2] : NULL,
- &dev_desc, &info, 1);
+ part = blk_get_device_part_str(intf, cmd_arg2(argc, argv),
+ &dev_desc, &info, 1);
if (part < 0) {
bootstage_error(BOOTSTAGE_ID_IDE_TYPE);
return 1;
diff --git a/cmd/fuse.c b/cmd/fuse.c
index 0676bb7..f884c89 100644
--- a/cmd/fuse.c
+++ b/cmd/fuse.c
@@ -44,7 +44,7 @@
static int do_fuse(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
- const char *op = argc >= 2 ? argv[1] : NULL;
+ const char *op = cmd_arg1(argc, argv);
int confirmed = argc >= 3 && !strcmp(argv[2], "-y");
u32 bank, word, cnt, val, cmp;
ulong addr;
diff --git a/cmd/mmc.c b/cmd/mmc.c
index 96befb2..2d5430a 100644
--- a/cmd/mmc.c
+++ b/cmd/mmc.c
@@ -946,7 +946,7 @@
}
if (argc == 2 || argc == 3)
- return mmc_partconf_print(mmc, argc == 3 ? argv[2] : NULL);
+ return mmc_partconf_print(mmc, cmd_arg2(argc, argv));
ack = dectoul(argv[2], NULL);
part_num = dectoul(argv[3], NULL);