#pragma once

/***
  This file was originally part of systemd.

  Copyright 2010 Lennart Poettering

  systemd is free software; you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 of the License, or
  (at your option) any later version.

  systemd 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

/* Missing glibc definitions to access certain kernel APIs.
   This file is last updated from systemd git:

   commit 71e5200f94b22589922704aa4abdf95d4fe2e528
   Author:     Daniel Mack <daniel@zonque.org>
   AuthorDate: Tue Oct 18 17:57:10 2016 +0200
   Commit:     Lennart Poettering <lennart@poettering.net>
   CommitDate: Fri Sep 22 15:24:54 2017 +0200

   Add abstraction model for BPF programs
*/

#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <sys/resource.h>
#include <sys/syscall.h>
#include <unistd.h>

/* The precise definition of __O_TMPFILE is arch specific; use the
 * values defined by the kernel (note: some are hexa, some are octal,
 * duplicated as-is from the kernel definitions):
 * - alpha, parisc, sparc: each has a specific value;
 * - others: they use the "generic" value.
 */

#ifndef __O_TMPFILE
#if defined(__alpha__)
#define __O_TMPFILE     0100000000
#elif defined(__parisc__) || defined(__hppa__)
#define __O_TMPFILE     0400000000
#elif defined(__sparc__) || defined(__sparc64__)
#define __O_TMPFILE     0x2000000
#else
#define __O_TMPFILE     020000000
#endif
#endif

/* a horrid kludge trying to make sure that this will fail on old kernels */
#ifndef O_TMPFILE
#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
#endif

#ifndef RENAME_NOREPLACE
#define RENAME_NOREPLACE (1 << 0)
#endif
#ifndef RENAME_EXCHANGE
#define RENAME_EXCHANGE (1 << 1)
#endif

#ifndef F_LINUX_SPECIFIC_BASE
#define F_LINUX_SPECIFIC_BASE 1024
#endif

#ifndef F_ADD_SEALS
#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
#define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10)

#define F_SEAL_SEAL     0x0001  /* prevent further seals from being set */
#define F_SEAL_SHRINK   0x0002  /* prevent file from shrinking */
#define F_SEAL_GROW     0x0004  /* prevent file from growing */
#define F_SEAL_WRITE    0x0008  /* prevent writes */
#endif

#ifndef MFD_ALLOW_SEALING
#define MFD_ALLOW_SEALING 0x0002U
#endif

#ifndef MFD_CLOEXEC
#define MFD_CLOEXEC 0x0001U
#endif

#include "glnx-missing-syscall.h"