From 4ecdb004e81a459ea63ebd7127e1c945df43f9ce Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Mon, 17 Jul 2017 18:55:36 +0300
Subject: Fix issues detected by coverity.

---
 src/fs/virtfs/fsdir.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/fs/virtfs/fsdir.cpp')

diff --git a/src/fs/virtfs/fsdir.cpp b/src/fs/virtfs/fsdir.cpp
index 60fc9f977..be980ae65 100644
--- a/src/fs/virtfs/fsdir.cpp
+++ b/src/fs/virtfs/fsdir.cpp
@@ -377,6 +377,11 @@ namespace FsDir
         }
 #ifdef USE_FILE_FOPEN
         const long pos = ftell(fd);
+        if (pos < 0)
+        {
+            reportAlways("FsDir::fileLength ftell error.");
+            return -1;
+        }
         fseek(fd, 0, SEEK_END);
         const long sz = ftell(fd);
         fseek(fd, pos, SEEK_SET);
@@ -483,6 +488,13 @@ namespace FsDir
 #ifdef USE_FILE_FOPEN
         fseek(fd, 0, SEEK_END);
         const long sz = ftell(fd);
+        if (sz < 0)
+        {
+            reportAlways("FsDir::fileLength ftell error.");
+            if (fd != FILEHDEFAULT)
+                FILECLOSE(fd);
+            return nullptr;
+        }
         fseek(fd, 0, SEEK_SET);
         fileSize = static_cast<int>(sz);
 #else  // USE_FILE_FOPEN
-- 
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