sysdeps/mach/hurd/statfsconv.c

   1 /* Convert between `struct statfs' format, and `struct statfs64' format.
   2    Copyright (C) 2001-2014 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, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <sys/statfs.h>
  20 #include <errno.h>
  21
  22 static inline int
  23 statfs64_conv (struct statfs *buf, const struct statfs64 *buf64)
  24 {
  25 # define DO(memb)                                                             \
  26   buf->memb = buf64->memb;                                                    \
  27   if (sizeof buf->memb != sizeof buf64->memb && buf->memb != buf64->memb)     \
  28     {                                                                         \
  29       __set_errno (EOVERFLOW);                                                \
  30       return -1;                                                              \
  31     }
  32
  33   DO (f_type);
  34   DO (f_bsize);
  35   DO (f_blocks);
  36   DO (f_bfree);
  37   DO (f_bavail);
  38   DO (f_files);
  39   DO (f_fsid);
  40   DO (f_namelen);
  41   DO (f_favail);
  42   DO (f_frsize);
  43   DO (f_flag);
  44
  45 # undef DO
  46
  47   return 0;
  48 }