sysdeps/unix/bsd/bsd4.4/kfreebsd/getfsstat.c

   1 /* Copyright (C) 2002 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Petr Salinger, 2006.
   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/mount.h>
  21 #include <alloca.h>
  22
  23 #include "statfsconv.c"
  24
  25 int
  26 __getfsstat (struct statfs *buf, long bufsize, int flags)
  27 {
  28   long bufcount;
  29   struct statfs_fbsd5 *tmpbuf;
  30   int count, i;
  31
  32   if (bufsize < 0)
  33     bufsize = 0;
  34   bufcount = bufsize / sizeof (struct statfs);
  35
  36   if ((bufcount == 0) || (buf == NULL))
  37     tmpbuf = NULL;
  38   else
  39     tmpbuf = alloca(bufcount * sizeof (struct statfs_fbsd5));
  40
  41   count = __syscall_getfsstat (tmpbuf, bufcount * sizeof (struct statfs_fbsd5), flags);
  42   if (tmpbuf && count > 0)
  43     for (i = count - 1; i >= 0; i--)
  44       statfs5_to_statfs (&tmpbuf[i], &buf[i]);
  45
  46   return count;
  47 }
  48
  49 weak_alias (__getfsstat, getfsstat)