From 23cc0657f43c21a4f249594a5dcc660b2d5fb77a Mon Sep 17 00:00:00 2001
From: Jakob Unterwurzacher
Date: Sun, 26 Jun 2016 19:18:13 +0200
Subject: fusefronted: preserve owner if running as root

If allow_other is set and we run as root, try to give newly created files to
the right user.
---
 internal/fusefrontend/args.go | 3 +++
 internal/fusefrontend/fs.go   | 7 ++++++-
 2 files changed, 9 insertions(+), 1 deletion(-)

(limited to 'internal/fusefrontend')

diff --git a/internal/fusefrontend/args.go b/internal/fusefrontend/args.go
index b3fa665..78b9b5b 100644
--- a/internal/fusefrontend/args.go
+++ b/internal/fusefrontend/args.go
@@ -7,4 +7,7 @@ type Args struct {
 	OpenSSL        bool
 	PlaintextNames bool
 	LongNames      bool
+	// Should we chown a file after it has been created?
+	// This only makes sense if (1) allow_other is set and (2) we run as root.
+	PreserveOwner bool
 }
diff --git a/internal/fusefrontend/fs.go b/internal/fusefrontend/fs.go
index 640c45d..9ae57fa 100644
--- a/internal/fusefrontend/fs.go
+++ b/internal/fusefrontend/fs.go
@@ -145,7 +145,12 @@ func (fs *FS) Create(path string, flags uint32, mode uint32, context *fuse.Conte
 			return nil, fuse.ToStatus(err)
 		}
 	}
-
+	if fs.args.PreserveOwner {
+		err = fd.Chown(int(context.Owner.Uid), int(context.Owner.Gid))
+		if err != nil {
+			tlog.Warn.Printf("PreserveOwner: Chown failed: %v", err)
+		}
+	}
 	return NewFile(fd, writeOnly, fs.contentEnc)
 }
 
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