From c91fccf29cded78a19e862aa811356631fead602 Mon Sep 17 00:00:00 2001
From: Shuduo Sang <sangshuduo@gmail.com>
Date: Thu, 1 Apr 2021 17:49:19 +0800
Subject: [PATCH] Hotfix/sangshuduo/td 3633 taosdemo segfault (#5649)

* [TD-3633] <fix>: fix taosdemo segfault.

* [TD-3633] <fix>: fix taosdemo segfault.

use snprintf instead of sprintf.

Co-authored-by: Shuduo Sang <sdsang@taosdata.com>
---
 src/kit/taosdemo/taosdemo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/kit/taosdemo/taosdemo.c b/src/kit/taosdemo/taosdemo.c
index d76185ca43..df1c7bee26 100644
--- a/src/kit/taosdemo/taosdemo.c
+++ b/src/kit/taosdemo/taosdemo.c
@@ -4455,7 +4455,7 @@ static int generateDataTail(char *tableName, int32_t tableSeq,
         break;
       }
 
-      buffer += sprintf(buffer, " %s", data);
+      buffer += snprintf(buffer, retLen + 1, "%s", data);
       k++;
       len += retLen;
       remainderBufLen -= retLen;
-- 
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