From de0aa53174594face59478a9b9fb4419ac3e96f6 Mon Sep 17 00:00:00 2001
From: Christian Ebner <c.ebner@proxmox.com>
Date: Wed, 27 Nov 2019 16:27:56 +0100
Subject: [PATCH] pxar: decoder: fix incorrect read for hardlinks.

Decoders read must check if the file is a hardlink and read data from the
corresponding offset if so.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
---
 src/pxar/decoder.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/pxar/decoder.rs b/src/pxar/decoder.rs
index 39a8096f..6e3a5b23 100644
--- a/src/pxar/decoder.rs
+++ b/src/pxar/decoder.rs
@@ -381,6 +381,10 @@ impl Decoder {
         let _filename = self.inner.read_filename(head.size)?;
 
         let head: PxarHeader = self.inner.read_item()?;
+        if head.htype == PXAR_FORMAT_HARDLINK {
+            let (_, diff) = self.inner.read_hardlink(head.size)?;
+            return self.read(offset - diff, size, data_offset);
+        }
         check_ca_header::<PxarEntry>(&head, PXAR_ENTRY)?;
         let _: PxarEntry = self.inner.read_item()?;