From eff35e60b63331e3e10f921792baa10b236a721d Mon Sep 17 00:00:00 2001
From: Jakob Unterwurzacher
Date: Fri, 4 Jan 2019 22:22:24 +0100
Subject: fusefrontend: fix setting xattrs on directories

Directories cannot be opened read-write. Retry with RDONLY.
---
 internal/fusefrontend/xattr.go | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'internal/fusefrontend/xattr.go')

diff --git a/internal/fusefrontend/xattr.go b/internal/fusefrontend/xattr.go
index ad1c330..2248bad 100644
--- a/internal/fusefrontend/xattr.go
+++ b/internal/fusefrontend/xattr.go
@@ -71,6 +71,10 @@ func (fs *FS) SetXAttr(relPath string, attr string, data []byte, flags int, cont
 
 	// O_NONBLOCK to not block on FIFOs.
 	fd, err := fs.openBackingFile(relPath, syscall.O_WRONLY|syscall.O_NONBLOCK)
+	// Directories cannot be opened read-write. Retry.
+	if err == syscall.EISDIR {
+		fd, err = fs.openBackingFile(relPath, syscall.O_RDONLY|syscall.O_DIRECTORY|syscall.O_NONBLOCK)
+	}
 	if err != nil {
 		return fuse.ToStatus(err)
 	}
@@ -100,6 +104,10 @@ func (fs *FS) RemoveXAttr(relPath string, attr string, context *fuse.Context) fu
 
 	// O_NONBLOCK to not block on FIFOs.
 	fd, err := fs.openBackingFile(relPath, syscall.O_WRONLY|syscall.O_NONBLOCK)
+	// Directories cannot be opened read-write. Retry.
+	if err == syscall.EISDIR {
+		fd, err = fs.openBackingFile(relPath, syscall.O_RDONLY|syscall.O_DIRECTORY|syscall.O_NONBLOCK)
+	}
 	if err != nil {
 		return fuse.ToStatus(err)
 	}
-- 
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