From a8adfa7f67840dec0fd94f25eecfb4abda208f23 Mon Sep 17 00:00:00 2001
From: 15596858998 <zhangxiao131@huawei.com>
Date: Wed, 1 Dec 2021 21:47:35 +0800
Subject: [PATCH] fixbug CLI's -D fails when the argument is not a regular file

---
 programs/fileio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/programs/fileio.c b/programs/fileio.c
index 8e5301deed1..d3995a43436 100644
--- a/programs/fileio.c
+++ b/programs/fileio.c
@@ -742,6 +742,8 @@ static size_t FIO_createDictBuffer(void** bufferPtr, const char* fileName, FIO_p
     if (fileHandle==NULL) EXM_THROW(31, "%s: %s", fileName, strerror(errno));
 
     fileSize = UTIL_getFileSize(fileName);
+    if (fileSize == UTIL_FILESIZE_UNKNOWN) 
+    	EXM_THROW(32, "This file format is not supported : Dictionary file %s\n", fileName);
     {
         size_t const dictSizeMax = prefs->patchFromMode ? prefs->memLimit : DICTSIZE_MAX;
         if (fileSize >  dictSizeMax) {