1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
/* Copyright (C) 1991, 1995, 1996, 1998 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <errno.h>
#include <stddef.h>
#include <unistd.h>
#include <limits.h>
#include <fcntl.h>
#include <sys/statfs.h>
#define EXT2_SUPER_MAGIC 0xef53
#define UFS_MAGIC 0x00011954
#define UFS_CIGAM 0x54190100 /* byteswapped MAGIC */
static long int default_pathconf (const char *path, int name);
/* Get file-specific information about PATH. */
long int
__pathconf (const char *path, int name)
{
if (name == _PC_FILESIZEBITS)
{
/* Test whether this is on a ext2 or UFS filesystem which
support large files. */
struct statfs fs;
if (__statfs (path, &fs) < 0
|| (fs.f_type != EXT2_SUPER_MAGIC
&& fs.f_type != UFS_MAGIC
&& fs.f_type != UFS_CIGAM))
return 32;
/* This filesystem supported files >2GB. */
return 64;
}
/* Fallback to the generic version. */
return default_pathconf (path, name);
}
#define __pathconf static default_pathconf
#include <sysdeps/posix/pathconf.c>
|
