/*

 * pam_fprint: PAM module for fingerprint authentication through fprintd

 * Copyright (C) 2020 Marco Trevisan <marco.trevisan@canonical.com>

 *

 * 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 of the License, 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.

 */

#pragma once

#include <stdlib.h>

/* Define auto-pointers functions, based on GLib Macros */

#define _CLEANUP_FUNC(func) __attribute__((cleanup (func)))

#define _PF_AUTOPTR_FUNC_NAME(TypeName) pf_autoptr_cleanup_ ## TypeName

#define _PF_AUTOPTR_TYPENAME(TypeName)  TypeName ## _pf_autoptr

#define PF_DEFINE_AUTOPTR_CLEANUP_FUNC(TypeName, cleanup) \

  typedef TypeName *_PF_AUTOPTR_TYPENAME (TypeName);    \

  static __attribute__((__unused__)) inline void        \

  _PF_AUTOPTR_FUNC_NAME (TypeName) (TypeName **_ptr)    \

  { if (_ptr) (cleanup) (*_ptr); }

#define PF_DEFINE_AUTO_CLEAN_FUNC(TypeName, cleanup)  \

  static __attribute__((__unused__)) inline void    \

  _PF_AUTOPTR_FUNC_NAME (TypeName) (TypeName *_ptr) \

  { cleanup (_ptr); }

static inline void

autoptr_cleanup_generic_free (void *p)

{

  void **pp = (void **) p;

  free (*pp);

}

#define pf_autofree _CLEANUP_FUNC (autoptr_cleanup_generic_free)

#define pf_autoptr(TypeName) \

  _CLEANUP_FUNC (_PF_AUTOPTR_FUNC_NAME (TypeName)) \

  _PF_AUTOPTR_TYPENAME (TypeName)

#define pf_auto(TypeName) \

  _CLEANUP_FUNC (_PF_AUTOPTR_FUNC_NAME (TypeName)) TypeName

PF_DEFINE_AUTOPTR_CLEANUP_FUNC (sd_bus, sd_bus_unref)

PF_DEFINE_AUTOPTR_CLEANUP_FUNC (sd_bus_message, sd_bus_message_unref)

PF_DEFINE_AUTOPTR_CLEANUP_FUNC (sd_bus_slot, sd_bus_slot_unref)

PF_DEFINE_AUTO_CLEAN_FUNC (sd_bus_error, sd_bus_error_free)