glibc/sysdeps/unix/sysv/linux/fxstatat.c

66 lines
1.9 KiB
C

/* Copyright (C) 2005-2020 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
<https://www.gnu.org/licenses/>. */
/* Ho hum, if fxstatat == fxstatat64 we must get rid of the prototype or gcc
will complain since they don't strictly match. */
#define __fxstatat64 __fxstatat64_disable
#include <errno.h>
#include <fcntl.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <kernel_stat.h>
#include <sysdep.h>
#include <sys/syscall.h>
#include <xstatconv.h>
/* Get information about the file NAME in BUF. */
int
__fxstatat (int vers, int fd, const char *file, struct stat *st, int flag)
{
int result;
INTERNAL_SYSCALL_DECL (err);
#ifdef STAT_IS_KERNEL_STAT
# define kst (*st)
#else
struct kernel_stat kst;
#endif
result = INTERNAL_SYSCALL (newfstatat, err, 4, fd, file, &kst, flag);
if (!__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1))
{
#ifdef STAT_IS_KERNEL_STAT
return 0;
#else
return __xstat_conv (vers, &kst, st);
#endif
}
else
return INLINE_SYSCALL_ERROR_RETURN_VALUE (INTERNAL_SYSCALL_ERRNO (result,
err));
}
libc_hidden_def (__fxstatat)
#if XSTAT_IS_XSTAT64
# undef __fxstatat64
strong_alias (__fxstatat, __fxstatat64);
libc_hidden_def (__fxstatat64)
#endif