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

61 lines
2.1 KiB
C

/* Get file status. Linux version.
Copyright (C) 2020-2024 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/>. */
#include <sys/stat.h>
#include <kernel_stat.h>
#include <sysdep.h>
#if !XSTAT_IS_XSTAT64
int
__fstatat (int fd, const char *file, struct stat *buf, int flag)
{
struct __stat64_t64 st64;
int r = __fstatat64_time64 (fd, file, &st64, flag);
if (r == 0)
{
if (! in_ino_t_range (st64.st_ino)
|| ! in_off_t_range (st64.st_size)
|| ! in_blkcnt_t_range (st64.st_blocks)
|| ! in_time_t_range (st64.st_atim.tv_sec)
|| ! in_time_t_range (st64.st_mtim.tv_sec)
|| ! in_time_t_range (st64.st_ctim.tv_sec))
return INLINE_SYSCALL_ERROR_RETURN_VALUE (EOVERFLOW);
/* Clear internal pad and reserved fields. */
memset (buf, 0, sizeof (*buf));
buf->st_dev = st64.st_dev;
buf->st_ino = st64.st_ino;
buf->st_mode = st64.st_mode;
buf->st_nlink = st64.st_nlink;
buf->st_uid = st64.st_uid;
buf->st_gid = st64.st_gid;
buf->st_rdev = st64.st_rdev;
buf->st_size = st64.st_size;
buf->st_blksize = st64.st_blksize;
buf->st_blocks = st64.st_blocks;
buf->st_atim = valid_timespec64_to_timespec (st64.st_atim);
buf->st_mtim = valid_timespec64_to_timespec (st64.st_mtim);
buf->st_ctim = valid_timespec64_to_timespec (st64.st_ctim);
}
return r;
}
weak_alias (__fstatat, fstatat)
#endif