From a01f1a4e1d5752ab7c0e8f97d2ba8901eba4cd3b Mon Sep 17 00:00:00 2001
From: slzhou <slzhou@taosdata.com>
Date: Fri, 22 Apr 2022 08:45:38 +0800
Subject: [PATCH] fix unit test case that causes core dump

---
 source/dnode/mgmt/implement/src/dmHandle.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/source/dnode/mgmt/implement/src/dmHandle.c b/source/dnode/mgmt/implement/src/dmHandle.c
index 7b7ab7fa9a..376f589acd 100644
--- a/source/dnode/mgmt/implement/src/dmHandle.c
+++ b/source/dnode/mgmt/implement/src/dmHandle.c
@@ -236,8 +236,12 @@ static int32_t dmSpawnUdfd(SDnode *pDnode) {
   uv_process_options_t options = {0};
 
   char path[PATH_MAX] = {0};
-  strncpy(path, tsProcPath, strlen(tsProcPath));
-  char* dirName = taosDirName(path);
+  if (tsProcPath == NULL) {
+    path[0] = '.';
+  } else {
+    strncpy(path, tsProcPath, strlen(tsProcPath));
+    taosDirName(path);
+  }
   strcat(path, "/udfd");
   char* argsUdfd[] = {path, "-c", configDir, NULL};
   options.args = argsUdfd;