From 9ce4a03887c7bc580545597f02108c9a9c67aa3d Mon Sep 17 00:00:00 2001
From: Valient Gough <vgough@pobox.com>
Date: Fri, 11 Apr 2008 08:36:51 +0000
Subject: [PATCH] add error checking to setfsuid/setfsgid calls

git-svn-id: http://encfs.googlecode.com/svn/trunk@13 db9cf616-1c43-0410-9cb8-a902689de0d6
---
 encfs/FileNode.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/encfs/FileNode.cpp b/encfs/FileNode.cpp
index 6b1f577..afe18e3 100644
--- a/encfs/FileNode.cpp
+++ b/encfs/FileNode.cpp
@@ -176,9 +176,23 @@ int FileNode::mknod(mode_t mode, dev_t rdev, uid_t uid, gid_t gid)
     int olduid = -1;
     int oldgid = -1;
     if(uid != 0)
+    {
 	olduid = setfsuid( uid );
+        if(olduid == -1)
+        {
+            rInfo("setfsuid error: %s", strerror(errno));
+            return -EPERM;
+        }
+    }
     if(gid != 0)
+    {
 	oldgid = setfsgid( gid );
+        if(oldgid == -1)
+        {
+            rInfo("setfsgid error: %s", strerror(errno));
+            return -EPERM;
+        }
+    }
 
     /*
      * cf. xmp_mknod() in fusexmp.c