Fix for o_rdonly and getattr delegation

1 files changed, 15 insertions, 1 deletions

diff --git a/FuseArchive/ChunkFile.py b/FuseArchive/ChunkFile.py
index 8e4f2eb..62d2c1e 100644
--- a/FuseArchive/ChunkFile.py
+++ b/FuseArchive/ChunkFile.py
@@ -116,11 +116,25 @@ class ChunkFile(object):
         # files works (in the create a read-only file for writing case)
         src = "./tree" + path
         logging.debug( "Saving fh for " + src )
-        nflags = os.O_RDWR | os.O_APPEND
+
+        if flags == 0:
+            # o_rdonly
+            nflags = flags
+        else:
+            # We need rw to cp -a on r/o files, actually we need rw on
+            # almost any write only operation to read out our chunks list
+            nflags = os.O_RDWR | os.O_APPEND
+
         if flags & os.O_CREAT:
             logging.debug( "Adding O_CREAT" )
             nflags = nflags | os.O_CREAT
 
+        logging.debug( "Flags & O_RDONLY %d" % (flags & os.O_RDONLY) );
+        logging.debug( "Flags & O_RDWR %d" % (flags & os.O_RDWR) );
+        logging.debug( "Flags & O_WRONLY %d" % (flags & os.O_WRONLY) );
+        logging.debug( "Flags & O_APPEND %d" % (flags & os.O_APPEND) );
+        logging.debug( "Flags & O_CREAT %d" % (flags & os.O_CREAT) );
+
         self.file = os.fdopen( os.open( src, nflags, *mode ),
             flag2mode( nflags ) )