sysdeps/unix/sysv/linux/alpha/xstatconv.c

   1 /* Convert between the kernel's `struct stat' format, and libc's.
   2    Copyright (C) 1997 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library 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 GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #include <string.h>
  21
  22
  23 static inline int
  24 xstat_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
  25 {
  26   switch (vers)
  27     {
  28     case _STAT_VER_KERNEL:
  29       /* Nothing to do.  The struct is in the form the kernel expects.
  30          We should have short-circuted before we got here, but for
  31          completeness... */
  32       memcpy ((struct kernel_stat *) ubuf, kbuf, sizeof (*kbuf));
  33       break;
  34
  35     case _STAT_VER_GLIBC2:
  36       {
  37         struct glibc2_stat *buf = ubuf;
  38
  39         buf->st_dev = kbuf->st_dev;
  40         buf->st_ino = kbuf->st_ino;
  41         buf->st_mode = kbuf->st_mode;
  42         buf->st_nlink = kbuf->st_nlink;
  43         buf->st_uid = kbuf->st_uid;
  44         buf->st_gid = kbuf->st_gid;
  45         buf->st_rdev = kbuf->st_rdev;
  46         buf->st_size = kbuf->st_size;
  47         buf->st_atime = kbuf->st_atime;
  48         buf->st_mtime = kbuf->st_mtime;
  49         buf->st_ctime = kbuf->st_ctime;
  50         buf->st_blksize = kbuf->st_blksize;
  51         buf->st_blocks = kbuf->st_blocks;
  52         buf->st_flags = kbuf->st_flags;
  53         buf->st_gen = kbuf->st_gen;
  54       }
  55       break;
  56
  57     case _STAT_VER_GLIBC2_1:
  58       {
  59         struct stat64 *buf = ubuf;
  60
  61         buf->st_dev = kbuf->st_dev;
  62         buf->st_ino = kbuf->st_ino;
  63         buf->st_mode = kbuf->st_mode;
  64         buf->st_nlink = kbuf->st_nlink;
  65         buf->st_uid = kbuf->st_uid;
  66         buf->st_gid = kbuf->st_gid;
  67         buf->st_rdev = kbuf->st_rdev;
  68         buf->st_size = kbuf->st_size;
  69         buf->st_atime = kbuf->st_atime;
  70         buf->st_mtime = kbuf->st_mtime;
  71         buf->st_ctime = kbuf->st_ctime;
  72         buf->st_blocks = kbuf->st_blocks;
  73         buf->st_blksize = kbuf->st_blksize;
  74         buf->st_flags = kbuf->st_flags;
  75         buf->st_gen = kbuf->st_gen;
  76         buf->__pad3 = 0;
  77         buf->__unused[0] = 0;
  78         buf->__unused[1] = 0;
  79         buf->__unused[2] = 0;
  80         buf->__unused[3] = 0;
  81       }
  82       break;
  83
  84     default:
  85       __set_errno (EINVAL);
  86       return -1;
  87     }
  88
  89   return 0;
  90 }