sysdeps/mach/hurd/statfsconv.c

   1 /* Convert between `struct statfs' format, and `struct statfs64' format.
   2    Copyright (C) 2001,02 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 Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the 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    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <sys/statfs.h>
  21 #include <errno.h>
  22
  23 static inline int
  24 statfs64_conv (struct statfs *buf, const struct statfs64 *buf64)
  25 {
  26 # define DO(memb)                                                             \
  27   buf->memb = buf64->memb;                                                    \
  28   if (sizeof buf->memb != sizeof buf64->memb && buf->memb != buf64->memb)     \
  29     {                                                                         \
  30       __set_errno (EOVERFLOW);                                                \
  31       return -1;                                                              \
  32     }
  33
  34   DO (f_type);
  35   DO (f_bsize);
  36   DO (f_blocks);
  37   DO (f_bfree);
  38   DO (f_bavail);
  39   DO (f_files);
  40   DO (f_fsid);
  41   DO (f_namelen);
  42   DO (f_favail);
  43   DO (f_frsize);
  44   DO (f_flag);
  45
  46 # undef DO
  47
  48   return 0;
  49 }