From 32ffc768152ff5dddf0c2c0b5a60cf4e0611834f Mon Sep 17 00:00:00 2001
From: Kenneth Skovhede <kenneth@hexad.dk>
Date: Wed, 4 Mar 2015 16:53:40 +0100
Subject: [PATCH] Suppress error messages when reading extended attributes from
 a mounted filesystem that does not support extended attributes. This solves
 #1303.

---
 Duplicati/Library/Snapshots/SystemIOLinux.cs |   8 +++++---
 thirdparty/UnixSupport/File.cs               |   7 +++++++
 thirdparty/UnixSupport/UnixSupport.dll       | Bin 8192 -> 8192 bytes
 3 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/Duplicati/Library/Snapshots/SystemIOLinux.cs b/Duplicati/Library/Snapshots/SystemIOLinux.cs
index 2d2267760..bd3395495 100644
--- a/Duplicati/Library/Snapshots/SystemIOLinux.cs
+++ b/Duplicati/Library/Snapshots/SystemIOLinux.cs
@@ -173,10 +173,12 @@ namespace Duplicati.Library.Snapshots
         public Dictionary<string, string> GetMetadata(string file)
         {
             var f = file.EndsWith(DIR_SEP) ? file.Substring(0, file.Length - 1) : file;
-            var n = UnixSupport.File.GetExtendedAttributes(f);
             var dict = new Dictionary<string, string>();
-            foreach(var x in n)
-                dict["unix-ext:" + x.Key] = Convert.ToBase64String(x.Value);
+
+            var n = UnixSupport.File.GetExtendedAttributes(f);
+            if (n != null)
+                foreach(var x in n)
+                    dict["unix-ext:" + x.Key] = Convert.ToBase64String(x.Value);
 
             var fse = UnixSupport.File.GetUserGroupAndPermissions(f);
             dict["unix:uid-gid-perm"] = string.Format("{0}-{1}-{2}", fse.UID, fse.GID, fse.Permissions);
diff --git a/thirdparty/UnixSupport/File.cs b/thirdparty/UnixSupport/File.cs
index 0fd2d1d0e..f96152201 100644
--- a/thirdparty/UnixSupport/File.cs
+++ b/thirdparty/UnixSupport/File.cs
@@ -190,7 +190,14 @@ namespace UnixSupport
             string[] values;
             var size = SUPPORTS_LLISTXATTR ? Mono.Unix.Native.Syscall.llistxattr(path, out values) : Mono.Unix.Native.Syscall.listxattr(path, out values);
             if (size < 0)
+            {
+                // In case the underlying filesystem does not support extended attributes,
+                // we simply return that there are no attributes
+                if (Syscall.GetLastError() == Errno.EOPNOTSUPP)
+                    return null;
+
                 throw new FileAccesException(path, "llistxattr");
+            }
             
             var dict = new Dictionary<string, byte[]>();
             foreach(var s in values)
diff --git a/thirdparty/UnixSupport/UnixSupport.dll b/thirdparty/UnixSupport/UnixSupport.dll
index 4dac8d3d362885bb17102b932462002224b94de3..da54cd4dee266e7dadfb5c5f3087b797fb2a1f88 100755
GIT binary patch
delta 459
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CJcXbD

delta 447
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