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/* Common parts of Linux implementation of pathconf and fpathconf.
Copyright (C) 1991,95,96,98,99,2000,2001,2002 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <unistd.h>
#include <errno.h>
#include <sys/statfs.h>
#include "linux_fsinfo.h"
/* Used like: return statfs_link_max (__statfs (name, &buf), &buf); */
static inline long int
statfs_link_max (int result, const struct statfs *fsbuf)
{
if (result < 0)
{
if (errno == ENOSYS)
/* Not possible, return the default value. */
return LINUX_LINK_MAX;
/* Some error occured. */
return -1;
}
switch (fsbuf->f_type)
{
case EXT2_SUPER_MAGIC:
return EXT2_LINK_MAX;
case MINIX_SUPER_MAGIC:
case MINIX_SUPER_MAGIC2:
return MINIX_LINK_MAX;
case MINIX2_SUPER_MAGIC:
case MINIX2_SUPER_MAGIC2:
return MINIX2_LINK_MAX;
case XENIX_SUPER_MAGIC:
return XENIX_LINK_MAX;
case SYSV4_SUPER_MAGIC:
case SYSV2_SUPER_MAGIC:
return SYSV_LINK_MAX;
case COH_SUPER_MAGIC:
return COH_LINK_MAX;
case UFS_MAGIC:
case UFS_CIGAM:
return UFS_LINK_MAX;
case REISERFS_SUPER_MAGIC:
return REISERFS_LINK_MAX;
case XFS_SUPER_MAGIC:
return XFS_LINK_MAX;
default:
return LINUX_LINK_MAX;
}
}
/* Used like: return statfs_filesize_max (__statfs (name, &buf), &buf); */
static inline long int
statfs_filesize_max (int result, const struct statfs *fsbuf)
{
if (result < 0)
{
if (errno == ENOSYS)
/* Not possible, return the default value. */
return 32;
/* Some error occured. */
return -1;
}
switch (fsbuf->f_type)
{
case EXT2_SUPER_MAGIC:
case UFS_MAGIC:
case UFS_CIGAM:
case REISERFS_SUPER_MAGIC:
case XFS_SUPER_MAGIC:
case SMB_SUPER_MAGIC:
case NTFS_SUPER_MAGIC:
case UDF_SUPER_MAGIC:
case JFS_SUPER_MAGIC:
return 64;
case MSDOS_SUPER_MAGIC:
case JFFS_SUPER_MAGIC:
case JFFS2_SUPER_MAGIC:
case NCP_SUPER_MAGIC:
case ROMFS_SUPER_MAGIC:
return 32;
default:
return 32;
}
}
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