1 files changed, 79 insertions, 0 deletions
diff --git a/cpukit/libfs/src/dosfs/msdos_rmnod.c b/cpukit/libfs/src/dosfs/msdos_rmnod.c
new file mode 100644
index 0000000000..56431b2133
--- /dev/null
+++ b/cpukit/libfs/src/dosfs/msdos_rmnod.c
@@ -0,0 +1,79 @@
+/*
+ *  MSDOS directory handlers implementation
+ *
+ *  Copyright (C) 2001 OKTET Ltd., St.-Petersburg, Russia
+ *  Author: Eugeny S. Mints <Eugeny.Mints@oktet.ru>
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  @(#) $Id$
+ */
+
+#if HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include "msdos.h"
+
+int
+msdos_rmnod(const rtems_filesystem_location_info_t *parent_pathloc,
+            const rtems_filesystem_location_info_t *pathloc)
+{
+    int                rc = RC_OK;
+    fat_file_fd_t     *fat_fd = pathloc->node_access;
+
+    if (fat_fd->fat_file_type == MSDOS_DIRECTORY)
+    {
+        bool is_empty = false;
+
+        /*
+         * You cannot remove a node that still has children
+         */
+        rc = msdos_dir_is_empty(pathloc->mt_entry, fat_fd, &is_empty);
+        if (rc != RC_OK)
+        {
+            return rc;
+        }
+
+        if (!is_empty)
+        {
+            rtems_set_errno_and_return_minus_one(ENOTEMPTY);
+        }
+
+        /*
+         * We deny attempts to delete open directory (if directory is current
+         * directory we assume it is open one)
+         */
+        if (fat_fd->links_num > 1)
+        {
+            rtems_set_errno_and_return_minus_one(EBUSY);
+        }
+
+        /*
+         * You cannot remove the file system root node.
+         */
+        if (rtems_filesystem_location_is_root(pathloc))
+        {
+            rtems_set_errno_and_return_minus_one(EBUSY);
+        }
+
+        /*
+         * You cannot remove a mountpoint.
+         * not used - mount() not implemenetd yet.
+         */
+    }
+
+    /* mark file removed */
+    rc = msdos_set_first_char4file_name(pathloc->mt_entry, &fat_fd->dir_pos,
+                                        MSDOS_THIS_DIR_ENTRY_EMPTY);
+    if (rc != RC_OK)
+    {
+        return rc;
+    }
+
+    fat_file_mark_removed(pathloc->mt_entry, fat_fd);
+
+    return rc;
+}