/* Convert between the kernel's `struct stat' format, and libc's.

   Copyright (C) 1997-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library 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.

   The GNU C Library 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 the GNU C Library.  If not, see

   <http://www.gnu.org/licenses/>.  */

#include <errno.h>

#include <string.h>

#include <sys/stat.h>

#include <kernel_stat.h>

#include <xstatconv.h>

#include <sys/syscall.h>

int

__xstat_conv (int vers, struct kernel_stat *kbuf, void *ubuf)

{

  switch (vers)

    {

    case _STAT_VER_KERNEL:

      *(struct kernel_stat *) ubuf = *kbuf;

      break;

    case _STAT_VER_GLIBC2:

      {

	struct glibc2_stat *buf = ubuf;

	buf->st_dev = kbuf->st_dev;

	buf->st_ino = kbuf->st_ino;

	buf->st_mode = kbuf->st_mode;

	buf->st_nlink = kbuf->st_nlink;

	buf->st_uid = kbuf->st_uid;

	buf->st_gid = kbuf->st_gid;

	buf->st_rdev = kbuf->st_rdev;

	buf->st_size = kbuf->st_size;

	buf->st_atime = kbuf->st_atime;

	buf->st_mtime = kbuf->st_mtime;

	buf->st_ctime = kbuf->st_ctime;

	buf->st_blksize = kbuf->st_blksize;

	buf->st_blocks = kbuf->st_blocks;

	buf->st_flags = kbuf->st_flags;

	buf->st_gen = kbuf->st_gen;

      }

      break;

    case _STAT_VER_GLIBC2_1:

      {

	struct glibc21_stat *buf = ubuf;

	buf->st_dev = kbuf->st_dev;

	buf->st_ino = kbuf->st_ino;

	buf->st_mode = kbuf->st_mode;

	buf->st_nlink = kbuf->st_nlink;

	buf->st_uid = kbuf->st_uid;

	buf->st_gid = kbuf->st_gid;

	buf->st_rdev = kbuf->st_rdev;

	buf->st_size = kbuf->st_size;

	buf->st_atime = kbuf->st_atime;

	buf->st_mtime = kbuf->st_mtime;

	buf->st_ctime = kbuf->st_ctime;

	buf->st_blocks = kbuf->st_blocks;

	buf->st_blksize = kbuf->st_blksize;

	buf->st_flags = kbuf->st_flags;

	buf->st_gen = kbuf->st_gen;

	buf->__pad3 = 0;

	buf->__glibc_reserved[0] = 0;

	buf->__glibc_reserved[1] = 0;

	buf->__glibc_reserved[2] = 0;

	buf->__glibc_reserved[3] = 0;

      }

      break;

    case _STAT_VER_GLIBC2_3_4:

      {

	struct stat64 *buf = ubuf;

	buf->st_dev = kbuf->st_dev;

	buf->st_ino = kbuf->st_ino;

	buf->st_rdev = kbuf->st_rdev;

	buf->st_size = kbuf->st_size;

	buf->st_blocks = kbuf->st_blocks;

	buf->st_mode = kbuf->st_mode;

	buf->st_uid = kbuf->st_uid;

	buf->st_gid = kbuf->st_gid;

	buf->st_blksize = kbuf->st_blksize;

	buf->st_nlink = kbuf->st_nlink;

	buf->__pad0 = 0;

	buf->st_atime = kbuf->st_atime;

	buf->st_atimensec = 0;

	buf->st_mtime = kbuf->st_mtime;

	buf->st_mtimensec = 0;

	buf->st_ctime = kbuf->st_ctime;

	buf->st_ctimensec = 0;

	buf->__glibc_reserved[0] = 0;

	buf->__glibc_reserved[1] = 0;

	buf->__glibc_reserved[2] = 0;

      }

      break;

    default:

      __set_errno (EINVAL);

      return -1;

    }

  return 0;

}