1 /* vi: set sw=4 ts=4: */
2 /*
3 * statfs() for uClibc
4 *
5 * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
6 *
7 * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
8 */
9
10 #include <sys/syscall.h>
11 #include <string.h>
12 #include <sys/param.h>
13 #include <sys/vfs.h>
14
15 extern __typeof(statfs) __libc_statfs attribute_hidden;
16
17 #if defined __NR_statfs64 && !defined __NR_statfs
18
__libc_statfs(const char * path,struct statfs * buf)19 int __libc_statfs(const char *path, struct statfs *buf)
20 {
21 int err = INLINE_SYSCALL(statfs64, 3, path, sizeof(*buf), buf);
22
23 if (err == 0) {
24 /* Did we overflow? */
25 if (buf->__pad1 || buf->__pad2 || buf->__pad3 ||
26 buf->__pad4 || buf->__pad5) {
27 __set_errno(EOVERFLOW);
28 return -1;
29 }
30 }
31
32 return err;
33 }
34 # if defined __UCLIBC_LINUX_SPECIFIC__ || defined __UCLIBC_HAS_THREADS_NATIVE__
35 /* statfs is used by NPTL, so it must exported in case */
36 weak_alias(__libc_statfs, statfs)
37 # endif
38
39 /* For systems which have both, prefer the old one */
40 #else
41
42 # define __NR___libc_statfs __NR_statfs
43 _syscall2(int, __libc_statfs, const char *, path, struct statfs *, buf)
44
45 # if defined __UCLIBC_LINUX_SPECIFIC__ || defined __UCLIBC_HAS_THREADS_NATIVE__
46 /* statfs is used by NPTL, so it must exported in case */
47 weak_alias(__libc_statfs, statfs)
48 # endif
49
50 #endif
51 libc_hidden_def(statfs)
52