From 90f3a5cec0e7e6c99699f9fc143fb9c44d6e2f9a Mon Sep 17 00:00:00 2001
From: root <root@ip-172-31-19-166.us-east-2.compute.internal>
Date: Sun, 28 Nov 2021 08:59:26 +0000
Subject: [PATCH] =?UTF-8?q?=EC=A0=95=EC=88=98=20=EC=98=A4=EB=B2=84?=
 =?UTF-8?q?=ED=94=8C=EB=A1=9C=EC=9A=B0=20=EB=B0=A9=EC=A7=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 client/fdfs_download_file.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/client/fdfs_download_file.c b/client/fdfs_download_file.c
index 7cf5f93..8f59c83 100644
--- a/client/fdfs_download_file.c
+++ b/client/fdfs_download_file.c
@@ -27,6 +27,10 @@ int main(int argc, char *argv[])
 	int64_t file_offset;
 	int64_t download_bytes;
 	
+	if(argc<0)
+	{
+		return NULL;
+	}
 	if (argc < 3)
 	{
 		printf("Usage: %s <config_file> <file_id> " \