os: special file name error

source/os/src/osDir.c

@@ -265,9 +265,21 @@ void taosRemoveOldFiles(const char *dirname, int32_t keepDays) {
 
 int32_t taosExpandDir(const char *dirname, char *outname, int32_t maxlen) {
   wordexp_t full_path;
-  if (0 != wordexp(dirname, &full_path, 0)) {
-    printf("failed to expand path:%s since %s", dirname, strerror(errno));
-    wordfree(&full_path);
+  switch (wordexp (dirname, &full_path, 0)) {
+  case 0:
+    break;
+  case WRDE_NOSPACE:
+    wordfree (&full_path);
+    // printf("failed to expand path:%s since Out of memory\n", dirname);
+    return -1;
+  case WRDE_BADCHAR:
+    // printf("failed to expand path:%s since illegal occurrence of newline or one of |, &, ;, <, >, (, ), {, }\n", dirname);
+    return -1;
+  case WRDE_SYNTAX:
+    // printf("failed to expand path:%s since Shell syntax error, such as unbalanced parentheses or unmatched quotes\n", dirname);
+    return -1;
+  default:
+    // printf("failed to expand path:%s since %s\n", dirname, strerror(errno));
     return -1;
   }