fix: fix compile issue

source/libs/function/src/udfd.c

@@ -54,16 +54,15 @@ int32_t udfdCPluginOpen(SScriptUdfEnvItem *items, int numItems) { return 0; }
 int32_t udfdCPluginClose() { return 0; }
 
 const char *udfdCPluginUdfInitLoadInitDestoryFuncs(SUdfCPluginCtx *udfCtx, const char *udfName) {
-  char  initFuncName[TSDB_FUNC_NAME_LEN + 5] = {0};
+  char  initFuncName[TSDB_FUNC_NAME_LEN + 6] = {0};
   char *initSuffix = "_init";
-  strcpy(initFuncName, udfName);
-  strncat(initFuncName, initSuffix, strlen(initSuffix));
+  snprintf(initFuncName, sizeof(initFuncName), "%s%s", udfName, initSuffix);
   uv_dlsym(&udfCtx->lib, initFuncName, (void **)(&udfCtx->initFunc));
 
-  char  destroyFuncName[TSDB_FUNC_NAME_LEN + 5] = {0};
+  char  destroyFuncName[TSDB_FUNC_NAME_LEN + 9] = {0};
   char *destroySuffix = "_destroy";
   strcpy(destroyFuncName, udfName);
-  strncat(destroyFuncName, destroySuffix, strlen(destroySuffix));
+  snprintf(destroyFuncName, sizeof(destroyFuncName), "%s%s", udfName, destroySuffix);
   uv_dlsym(&udfCtx->lib, destroyFuncName, (void **)(&udfCtx->destroyFunc));
   return udfName;
 }
@@ -73,22 +72,19 @@ void udfdCPluginUdfInitLoadAggFuncs(SUdfCPluginCtx *udfCtx, const char *udfName)
   strcpy(processFuncName, udfName);
   uv_dlsym(&udfCtx->lib, processFuncName, (void **)(&udfCtx->aggProcFunc));
 
-  char  startFuncName[TSDB_FUNC_NAME_LEN + 6] = {0};
+  char  startFuncName[TSDB_FUNC_NAME_LEN + 7] = {0};
   char *startSuffix = "_start";
-  strncpy(startFuncName, processFuncName, sizeof(startFuncName));
-  strncat(startFuncName, startSuffix, strlen(startSuffix));
+  snprintf(startFuncName, sizeof(startFuncName), "%s%s", processFuncName, startSuffix);
   uv_dlsym(&udfCtx->lib, startFuncName, (void **)(&udfCtx->aggStartFunc));
 
-  char  finishFuncName[TSDB_FUNC_NAME_LEN + 7] = {0};
+  char  finishFuncName[TSDB_FUNC_NAME_LEN + 8] = {0};
   char *finishSuffix = "_finish";
-  strncpy(finishFuncName, processFuncName, sizeof(finishFuncName));
-  strncat(finishFuncName, finishSuffix, strlen(finishSuffix));
+  snprintf(finishFuncName, sizeof(finishFuncName), "%s%s", processFuncName, finishSuffix);
   uv_dlsym(&udfCtx->lib, finishFuncName, (void **)(&udfCtx->aggFinishFunc));
 
-  char  mergeFuncName[TSDB_FUNC_NAME_LEN + 6] = {0};
+  char  mergeFuncName[TSDB_FUNC_NAME_LEN + 7] = {0};
   char *mergeSuffix = "_merge";
-  strncpy(mergeFuncName, processFuncName, sizeof(mergeFuncName));
-  strncat(mergeFuncName, mergeSuffix, strlen(mergeSuffix));
+  snprintf(mergeFuncName, sizeof(mergeFuncName), "%s%s", processFuncName, mergeSuffix);
   uv_dlsym(&udfCtx->lib, mergeFuncName, (void **)(&udfCtx->aggMergeFunc));
 }