From 5ffab7f2784fef5c0ab05a81c0fb693c7fe1426f Mon Sep 17 00:00:00 2001
From: Brian Cox <bcox@tripwire.com>
Date: Mon, 9 May 2016 10:34:53 -0700
Subject: [PATCH] Only posix_fadvise() on close if stream is nonnull, since
 fileno() segfaults (on Linux) if you try that.

---
 src/core/file_unix.cpp | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/core/file_unix.cpp b/src/core/file_unix.cpp
index 5526025..c969398 100644
--- a/src/core/file_unix.cpp
+++ b/src/core/file_unix.cpp
@@ -1,4 +1,4 @@
-//
+
 // The developer of the original code and/or files is Tripwire, Inc.
 // Portions created by Tripwire, Inc. are copyright (C) 2000 Tripwire,
 // Inc. Tripwire is a registered trademark of Tripwire, Inc.  All rights
@@ -229,12 +229,12 @@ void cFile::Open( const TSTRING& sFileNameC, uint32 flags )
 ///////////////////////////////////////////////////////////////////////////
 void cFile::Close() //throw(eFile)
 {
-#ifdef HAVE_POSIX_FADVISE
-    posix_fadvise(fileno(mpData->mpCurrStream),0,0, POSIX_FADV_DONTNEED);
-#endif
-
     if(mpData->mpCurrStream != NULL)
     {
+#ifdef HAVE_POSIX_FADVISE
+        posix_fadvise(fileno(mpData->mpCurrStream),0,0, POSIX_FADV_DONTNEED);
+#endif
+
         fclose( mpData->mpCurrStream );
         mpData->mpCurrStream = NULL;
     }