mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 08:40:07 +00:00
94 lines
2.6 KiB
C
94 lines
2.6 KiB
C
/* fxstat64 using old-style Unix fstat system call.
|
|
Copyright (C) 1997-2002, 2003, 2006 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, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#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.h>
|
|
#endif
|
|
|
|
#ifdef __NR_fstat64
|
|
# 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. */
|
|
|
|
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>
|
|
|
|
#if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2)
|
|
versioned_symbol (libc, ___fxstat64, __fxstat64, GLIBC_2_2);
|
|
strong_alias (___fxstat64, __old__fxstat64)
|
|
compat_symbol (libc, __old__fxstat64, __fxstat64, GLIBC_2_1);
|
|
hidden_ver (___fxstat64, __fxstat64)
|
|
#else
|
|
strong_alias (___fxstat64, __fxstat64)
|
|
hidden_def (__fxstat64)
|
|
#endif
|