From 2bc70843156c342f763512043e2178f18e1297a5 Mon Sep 17 00:00:00 2001
From: Thomas Schmitt <scdbackup@gmx.net>
Date: Tue, 30 Aug 2011 19:20:18 +0200
Subject: [PATCH] Adaptions and remarks about GNU/Hurd

---
 libisofs/aaip-os-linux.c | 8 ++++++--
 libisofs/aaip_0_2.c      | 7 +++++++
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/libisofs/aaip-os-linux.c b/libisofs/aaip-os-linux.c
index ede44fc..a01b2ca 100644
--- a/libisofs/aaip-os-linux.c
+++ b/libisofs/aaip-os-linux.c
@@ -216,8 +216,12 @@ int aaip_get_attr_list(char *path, size_t *num_attrs, char ***names,
       list_size= listxattr(path, list, 0);
     else
       list_size= llistxattr(path, list, 0);
-    if(list_size == -1)
-      {ret= -1; goto ex;}
+    if(list_size == -1) {
+      if(errno == ENOSYS) /* Function not implemented */
+        list_size= 0;     /* Handle as if xattr was disabled at compile time */
+      else
+        {ret= -1; goto ex;}
+    }
     if(list_size > 0) {
       list= calloc(list_size, 1);
       if(list == NULL)
diff --git a/libisofs/aaip_0_2.c b/libisofs/aaip_0_2.c
index 48062b8..ecadc51 100644
--- a/libisofs/aaip_0_2.c
+++ b/libisofs/aaip_0_2.c
@@ -2186,6 +2186,13 @@ ex:;
 
 #include "aaip-os-linux.c"
 
+/* August 2011: aaip-os-linux.c would also work for GNU/Hurd : ifdef __GNU__
+   Libraries and headers are present on Debian GNU/Hurd but there is no
+   ACL or xattr support in the filesystems yet.
+   Further, llistxattr() produces ENOSYS "Function not implemented".
+   So it makes few sense to enable it here.
+*/
+
 #else
 
 #include "aaip-os-dummy.c"