From 829ed818141656db7ccf56920aa58b19ce6717f1 Mon Sep 17 00:00:00 2001
From: Vincent Vanackere <vincent.vanackere@gmail.com>
Date: Thu, 14 Sep 2023 14:55:14 +0200
Subject: [PATCH] iso9660: add basic symlink support

---
 filesystem/iso9660/directoryentry.go | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/filesystem/iso9660/directoryentry.go b/filesystem/iso9660/directoryentry.go
index 1f694781..a6f538e0 100644
--- a/filesystem/iso9660/directoryentry.go
+++ b/filesystem/iso9660/directoryentry.go
@@ -482,9 +482,24 @@ func (de *directoryEntry) Size() int64 {
 
 // Mode() FileMode     // file mode bits
 func (de *directoryEntry) Mode() os.FileMode {
+	for _, ext := range de.extensions {
+		if s, ok := ext.(rockRidgeSymlink); ok && !s.continued {
+			return 0o755 | os.ModeSymlink
+		}
+	}
 	return 0o755
 }
 
+// Readlink tries to return the target link, only valid for symlinks
+func (de *directoryEntry) ReadLink() (string, bool) {
+	for _, ext := range de.extensions {
+		if s, ok := ext.(rockRidgeSymlink); ok && !s.continued {
+			return s.name, true
+		}
+	}
+	return "", false
+}
+
 // ModTime() time.Time // modification time
 func (de *directoryEntry) ModTime() time.Time {
 	return de.creation