From d718331e59afb35e56445f3a1597ed74a7f3a3e2 Mon Sep 17 00:00:00 2001
From: Nicolas Iooss <nicolas.iooss@m4x.org>
Date: Sat, 4 Jan 2014 03:03:51 +0000
Subject: copy: fix a segfault in SELinux context copying code

* src/selinux.c (restorecon_private): On ArchLinux the
`fakeroot cp -a file1 file2` command segfaulted due
to getfscreatecon() returning a NULL context.
So map this to the sometimes ignored ENODATA error,
rather than crashing.
* tests/cp/no-ctx.sh: Add a new test case.
* tests/local.mk: Reference the new test.
* NEWS: Mention the fix.
Fixes http://bugs.gnu.org/16335
---
 src/selinux.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/selinux.c')

diff --git a/src/selinux.c b/src/selinux.c
index cd38a81e8..016db1626 100644
--- a/src/selinux.c
+++ b/src/selinux.c
@@ -192,6 +192,11 @@ restorecon_private (char const *path, bool local)
     {
       if (getfscreatecon (&tcon) < 0)
         return rc;
+      if (!tcon)
+        {
+          errno = ENODATA;
+          return rc;
+        }
       rc = lsetfilecon (path, tcon);
       freecon (tcon);
       return rc;
-- 
cgit v1.2.3-54-g00ecf