From 37cf68c8c596c5b80aa4cc45a3e9355f9d46e532 Mon Sep 17 00:00:00 2001
From: Charles Munson <jetwhiz@jetwhiz.com>
Date: Fri, 12 Aug 2016 08:00:56 +0200
Subject: [PATCH] Bugfix: Segfault when running paranoid config in verbose mode

When "external IV chaining" is enabled, cipherName_ parameter may be
  NULL, resulting in segfault in verbose log attempt
---
 encfs/FileNode.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/encfs/FileNode.cpp b/encfs/FileNode.cpp
index e13b9df..0e20f76 100644
--- a/encfs/FileNode.cpp
+++ b/encfs/FileNode.cpp
@@ -100,7 +100,9 @@ static bool setIV(const std::shared_ptr<FileIO> &io, uint64_t iv) {
 bool FileNode::setName(const char *plaintextName_, const char *cipherName_,
                        uint64_t iv, bool setIVFirst) {
   // Lock _lock( mutex );
-  VLOG(1) << "calling setIV on " << cipherName_;
+  if (cipherName_)
+    VLOG(1) << "calling setIV on " << cipherName_;
+
   if (setIVFirst) {
     if (fsConfig->config->externalIVChaining && !setIV(io, iv)) return false;