From 2ee0cf6701b4b62648ff70bd99de44921e7ab5a8 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Wed, 9 Nov 2022 15:19:27 +0800
Subject: [PATCH] fix(query): fix the string copy error.

---
 source/libs/function/src/tudf.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source/libs/function/src/tudf.c b/source/libs/function/src/tudf.c
index 1dedfe8364..8715aa0be1 100644
--- a/source/libs/function/src/tudf.c
+++ b/source/libs/function/src/tudf.c
@@ -131,7 +131,8 @@ static int32_t udfSpawnUdfd(SUdfdData *pData) {
 
   char   udfdPathLdLib[1024] = {0};
   size_t udfdLdLibPathLen = strlen(tsUdfdLdLibPath);
-  strncpy(udfdPathLdLib, tsUdfdLdLibPath, udfdLdLibPathLen);
+  strncpy(udfdPathLdLib, tsUdfdLdLibPath, tListLen(udfdPathLdLib));
+
   udfdPathLdLib[udfdLdLibPathLen] = ':';
   strncpy(udfdPathLdLib + udfdLdLibPathLen + 1, pathTaosdLdLib, sizeof(udfdPathLdLib) - udfdLdLibPathLen - 1);
   if (udfdLdLibPathLen + taosdLdLibPathLen < 1024) {
-- 
GitLab