From ae84737c1bc0a5e137e1a25d7344f2ab8e420489 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@lukeshu.com>
Date: Wed, 13 Jul 2022 02:22:21 -0600
Subject: mount: Implement symlinks

---
 lib/btrfsprogs/btrfsinspect/mount.go | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'lib')

diff --git a/lib/btrfsprogs/btrfsinspect/mount.go b/lib/btrfsprogs/btrfsinspect/mount.go
index 2df84f5..c171ed3 100644
--- a/lib/btrfsprogs/btrfsinspect/mount.go
+++ b/lib/btrfsprogs/btrfsinspect/mount.go
@@ -397,7 +397,17 @@ func (sv *subvolume) ReleaseFileHandle(_ context.Context, op *fuseops.ReleaseFil
 }
 
 func (sv *subvolume) ReadSymlink(_ context.Context, op *fuseops.ReadSymlinkOp) error {
-	return syscall.ENOSYS
+	file, err := sv.LoadFile(btrfs.ObjID(op.Inode))
+	if err != nil {
+		return err
+	}
+	reader := io.NewSectionReader(file, 0, file.InodeItem.Size)
+	tgt, err := io.ReadAll(reader)
+	if err != nil {
+		return err
+	}
+	op.Target = string(tgt)
+	return nil
 }
 
 func (sv *subvolume) GetXattr(_ context.Context, op *fuseops.GetXattrOp) error { return syscall.ENOSYS }
-- 
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