1 files changed, 113 insertions, 0 deletions
diff --git a/cpukit/libcsupport/src/_rename_r.c b/cpukit/libcsupport/src/_rename_r.c
new file mode 100644
index 0000000000..51010df28e
--- /dev/null
+++ b/cpukit/libcsupport/src/_rename_r.c
@@ -0,0 +1,113 @@
+/*
+ *  _rename_r() - POSIX 1003.1b - 5.3.4 - Rename a file
+ *
+ *  COPYRIGHT (c) 1989-2007.
+ *  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.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#if defined(RTEMS_NEWLIB) && !defined(HAVE__RENAME_R)
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <rtems/libio_.h>
+#include <rtems/seterr.h>
+
+int _rename_r(
+  struct _reent *ptr __attribute__((unused)),
+  const char    *old,
+  const char    *new
+)
+{
+  int                                 old_parent_pathlen;
+  rtems_filesystem_location_info_t    old_loc;
+  rtems_filesystem_location_info_t    old_parent_loc;
+  rtems_filesystem_location_info_t    new_parent_loc;
+  int                                 i;
+  int                                 result;
+  const char                         *name;
+  bool                                free_old_parentloc = false;
+
+  /*
+   *  Get the parent node of the old path to be renamed. Find the parent path.
+   */
+
+  old_parent_pathlen = rtems_filesystem_dirname ( old );
+
+  if ( old_parent_pathlen == 0 )
+    rtems_filesystem_get_start_loc( old, &i, &old_parent_loc );
+  else {
+    result = rtems_filesystem_evaluate_path( old, old_parent_pathlen,
+                                             RTEMS_LIBIO_PERMS_WRITE,
+                                             &old_parent_loc,
+                                             false );
+    if ( result != 0 )
+      return -1;
+
+    free_old_parentloc = true;
+  }
+
+  /*
+   * Start from the parent to find the node that should be under it.
+   */
+
+  old_loc = old_parent_loc;
+  name = old + old_parent_pathlen;
+  name += rtems_filesystem_prefix_separators( name, strlen( name ) );
+
+  result = rtems_filesystem_evaluate_relative_path( name , strlen( name ),
+                                                    0, &old_loc, false );
+  if ( result != 0 ) {
+    if ( free_old_parentloc )
+      rtems_filesystem_freenode( &old_parent_loc );
+    return -1;
+  }
+  
+  /*
+   * Get the parent of the new node we are renaming to.
+   */
+
+  rtems_filesystem_get_start_loc( new, &i, &new_parent_loc );
+
+  result = (*new_parent_loc.ops->evalformake_h)( &new[i], &new_parent_loc, &name );
+  if ( result != 0 ) {
+    rtems_filesystem_freenode( &new_parent_loc );
+    if ( free_old_parentloc )
+      rtems_filesystem_freenode( &old_parent_loc );
+    rtems_filesystem_freenode( &old_loc );
+    return -1;
+  }
+
+  /*
+   *  Check to see if the caller is trying to rename across file system
+   *  boundaries.
+   */
+
+  if ( old_parent_loc.mt_entry != new_parent_loc.mt_entry ) {
+    rtems_filesystem_freenode( &new_parent_loc );
+    if ( free_old_parentloc )
+      rtems_filesystem_freenode( &old_parent_loc );
+    rtems_filesystem_freenode( &old_loc );
+    rtems_set_errno_and_return_minus_one( EXDEV );
+  }
+
+  result = (*new_parent_loc.ops->rename_h)( &old_parent_loc, &old_loc, &new_parent_loc, name );
+
+  rtems_filesystem_freenode( &new_parent_loc );
+  if ( free_old_parentloc )
+    rtems_filesystem_freenode( &old_parent_loc );
+  rtems_filesystem_freenode( &old_loc );
+
+  return result;
+}
+#endif