IMFS: Add CONFIGURE_IMFS_DISABLE_READDIR

1 files changed, 52 insertions, 0 deletions

diff --git a/cpukit/libfs/src/imfs/imfs_dir.c b/cpukit/libfs/src/imfs/imfs_dir.c
new file mode 100644
index 0000000000..2aefc936b4
--- /dev/null
+++ b/cpukit/libfs/src/imfs/imfs_dir.c
@@ -0,0 +1,52 @@
+/**
+ * @file
+ *
+ * @ingroup IMFS
+ */
+
+/*
+ *  COPYRIGHT (c) 1989-1999.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#if HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include "imfs.h"
+
+IMFS_jnode_t *IMFS_node_initialize_directory(
+  IMFS_jnode_t *node,
+  void *arg
+)
+{
+  IMFS_directory_t *dir = (IMFS_directory_t *) node;
+
+  rtems_chain_initialize_empty( &dir->Entries );
+
+  return node;
+}
+
+static bool IMFS_is_mount_point( const IMFS_directory_t *dir )
+{
+  return dir->mt_fs != NULL;
+}
+
+IMFS_jnode_t *IMFS_node_remove_directory( IMFS_jnode_t *node )
+{
+  IMFS_directory_t *dir = (IMFS_directory_t *) node;
+
+  if ( !rtems_chain_is_empty( &dir->Entries ) ) {
+    errno = ENOTEMPTY;
+    dir = NULL;
+  } else if ( IMFS_is_mount_point( dir ) ) {
+    errno = EBUSY;
+    dir = NULL;
+  }
+
+  return &dir->Node;
+}