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
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
/* fxstat64 using old-style Unix fstat system call.
Copyright (C) 1997, 1998, 1999, 2000, 2001 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 <sys/stat.h>
#include <kernel_stat.h>
#include <sysdep.h>
#include <sys/syscall.h>
#include <bp-checks.h>
#include "kernel-features.h"
#if __ASSUME_STAT64_SYSCALL == 0
# include <xstatconv.c>
#endif
extern int __syscall_fstat (int, struct kernel_stat *__unbounded);
#ifdef __NR_fstat64
extern int __syscall_fstat64 (int, struct stat64 *__unbounded);
# if __ASSUME_STAT64_SYSCALL == 0
/* The variable is shared between all wrappers around *stat64 calls. */
extern int __have_no_stat64;
# endif
#endif
/* Get information about the file FD in BUF. */
extern int ___fxstat64 (int vers, int fd, struct stat64 *buf);
int
___fxstat64 (int vers, int fd, struct stat64 *buf)
{
int result;
#if __ASSUME_STAT64_SYSCALL > 0
result = INLINE_SYSCALL (fstat64, 2, fd, CHECK_1 (buf));
# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
if (__builtin_expect (!result, 1) && buf->__st_ino != (__ino_t) buf->st_ino)
buf->st_ino = buf->__st_ino;
# endif
return result;
#else
struct kernel_stat kbuf;
# if defined __NR_fstat64
if (! __have_no_stat64)
{
int saved_errno = errno;
result = INLINE_SYSCALL (fstat64, 2, fd, CHECK_1 (buf));
if (result != -1 || errno != ENOSYS)
{
# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
if (!result && buf->__st_ino != (__ino_t)buf->st_ino)
buf->st_ino = buf->__st_ino;
# endif
return result;
}
__set_errno (saved_errno);
__have_no_stat64 = 1;
}
# endif
result = INLINE_SYSCALL (fstat, 2, fd, __ptrvalue (&kbuf));
if (result == 0)
result = xstat64_conv (vers, &kbuf, buf);
return result;
#endif
}
#include <shlib-compat.h>
versioned_symbol (libc, ___fxstat64, __fxstat64, GLIBC_2_2);
#if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2)
strong_alias (___fxstat64, __old__fxstat64)
compat_symbol (libc, __old__fxstat64, __fxstat64, GLIBC_2_1);
#endif
|
