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List: u-boot
Subject: [PATCH 5/5] cmd: Convert part uuid to use cmd_result
From: Sean Anderson <seanga2 () gmail ! com>
Date: 2021-02-28 23:47:18
Message-ID: 20210228234718.1208376-6-seanga2 () gmail ! com
[Download RAW message or body]
This is fairly straightforward. This allows
part uuid mmc 0 foo
To be rewritten as
env set foo $(part uuid mmc 0)
or even (if the variable is not required to be environmental)
foo=$(part uuid mmc 0)
Signed-off-by: Sean Anderson <seanga2@gmail.com>
---
cmd/part.c | 18 ++++++++++++++----
1 file changed, 14 insertions(+), 4 deletions(-)
diff --git a/cmd/part.c b/cmd/part.c
index 3395c17b89..97e70d79ff 100644
--- a/cmd/part.c
+++ b/cmd/part.c
@@ -19,9 +19,12 @@
#include <config.h>
#include <command.h>
#include <env.h>
+#include <malloc.h>
#include <part.h>
#include <vsprintf.h>
+DECLARE_GLOBAL_DATA_PTR;
+
enum cmd_part_info {
CMD_PART_INFO_START = 0,
CMD_PART_INFO_SIZE,
@@ -43,12 +46,19 @@ static int do_part_uuid(int argc, char *const argv[])
if (part < 0)
return 1;
- if (argc > 2)
+ if (argc > 2) {
env_set(argv[2], info.uuid);
- else
- printf("%s\n", info.uuid);
+ } else {
+ size_t result_size = sizeof(info.uuid) + 1;
- return 0;
+ gd->cmd_result = malloc(result_size);
+ if (!gd->cmd_result)
+ return CMD_RET_FAILURE;
+
+ snprintf(gd->cmd_result, result_size, "%s\n", info.uuid);
+ }
+
+ return CMD_RET_SUCCESS;
}
static int do_part_list(int argc, char *const argv[])
--
2.30.1
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