From 16e66419ad20692e9637b09e56db3cfa10589da1 Mon Sep 17 00:00:00 2001
From: Gymee <8039110+Gymee@user.noreply.gitee.com>
Date: Sun, 20 Sep 2020 12:36:53 +0800
Subject: [PATCH] add return value checking for fseek before calling ftell

---
 apphilogcat/hiview_applogcat.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/apphilogcat/hiview_applogcat.c b/apphilogcat/hiview_applogcat.c
index 69d0348..58b844d 100755
--- a/apphilogcat/hiview_applogcat.c
+++ b/apphilogcat/hiview_applogcat.c
@@ -43,10 +43,13 @@ static int FileSize(const char *filename)
     if (!fp) {
         return -1;
     }
-    fseek(fp, 0L, SEEK_END);
-    int size = ftell(fp);
-    fclose(fp);
 
+    int size = 0;
+    int ret = fseek(fp, 0L, SEEK_END);
+    if (ret == 0) {
+        size = ftell(fp);
+    }
+    fclose(fp);
     return size;
 }
 
-- 
Gitee