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remove.h

/* Remove directory entries.

   Copyright (C) 1998, 2000, 2002, 2003, 2004 Free Software
   Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software Foundation,
   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */

#ifndef REMOVE_H
# define REMOVE_H

# include "dev-ino.h"

struct rm_options
{
  /* If true, ignore nonexistent files.  */
  bool ignore_missing_files;

  /* If true, query the user about whether to remove each file.  */
  bool interactive;

  /* If true, recursively remove directories.  */
  bool recursive;

  /* Pointer to the device and inode numbers of `/', when --recursive.
     Otherwise NULL.  */
  struct dev_ino *root_dev_ino;

  /* If nonzero, stdin is a tty.  */
  bool stdin_tty;

  /* If true, remove directories with unlink instead of rmdir, and don't
     require a directory to be empty before trying to unlink it.
     Only works for the super-user.  */
  bool unlink_dirs;

  /* If true, display the name of each file removed.  */
  bool verbose;

  /* If true, treat the failure by the rm function to restore the
     current working directory as a fatal error.  I.e., if this field
     is true and the rm function cannot restore cwd, it must exit with
     a nonzero status.  Some applications require that the rm function
     restore cwd (e.g., mv) and some others do not (e.g., rm,
     in many cases).  */
  bool require_restore_cwd;
};

enum RM_status
{
  /* These must be listed in order of increasing seriousness. */
  RM_OK = 2,
  RM_USER_DECLINED,
  RM_ERROR,
  RM_NONEMPTY_DIR
};

# define VALID_STATUS(S) \
  ((S) == RM_OK || (S) == RM_USER_DECLINED || (S) == RM_ERROR)

# define UPDATE_STATUS(S, New_value)                        \
  do                                            \
    {                                           \
      if ((New_value) == RM_ERROR                     \
        || ((New_value) == RM_USER_DECLINED && (S) == RM_OK))     \
      (S) = (New_value);                              \
    }                                           \
  while (0)

enum RM_status rm (size_t n_files, char const *const *file,
               struct rm_options const *x);

#endif

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