1  /* Rename a file to a backup name, Emacs style.
       2  
       3     Copyright 2017-2023 Free Software Foundation, Inc.
       4  
       5     This program is free software: you can redistribute it and/or modify
       6     it under the terms of the GNU General Public License as published by
       7     the Free Software Foundation, either version 3 of the License, or
       8     (at your option) any later version.
       9  
      10     This program is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      13     GNU General Public License for more details.
      14  
      15     You should have received a copy of the GNU General Public License
      16     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <config.h>
      19  
      20  #include "backup-internal.h"
      21  
      22  /* Relative to DIR_FD, rename the existing file FILE to a backup name,
      23     allocated with malloc, and return the backup name.  On failure
      24     return a null pointer, setting errno.  Do not call this function if
      25     backup_type == no_backups.  */
      26  
      27  char *
      28  backup_file_rename (int dir_fd, char const *file, enum backup_type backup_type)
      29  {
      30    return backupfile_internal (dir_fd, file, backup_type, true);
      31  }