1/* Get file status.  Linux version.
 2   Copyright (C) 2020-2025 Free Software Foundation, Inc.
 3   This file is part of the GNU C Library.
 4
 5   The GNU C Library is free software; you can redistribute it and/or
 6   modify it under the terms of the GNU Lesser General Public
 7   License as published by the Free Software Foundation; either
 8   version 2.1 of the License, or (at your option) any later version.
 9
10   The GNU C Library is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13   Lesser General Public License for more details.
14
15   You should have received a copy of the GNU Lesser General Public
16   License along with the GNU C Library; if not, see
17   <https://www.gnu.org/licenses/>.  */
18
19/* zig patch: fixes to make this file compile */
20
21#include <inttypes.h>
22#include <sys/stat.h>
23#include <kernel_stat.h>
24#include <sysdep.h>
25#include <string.h>
26
27#if !XSTAT_IS_XSTAT64
28
29static inline bool
30in_time_t_range (__time64_t t)
31{
32  time_t s = t;
33  return s == t;
34}
35
36static inline struct timespec
37valid_timespec64_to_timespec (const struct __timespec64 ts64)
38{
39  struct timespec ts;
40
41  ts.tv_sec = (time_t) ts64.tv_sec;
42  ts.tv_nsec = ts64.tv_nsec;
43
44  return ts;
45}
46
47int
48__fstatat (int fd, const char *file, struct stat *buf, int flag)
49{
50  struct __stat64_t64 st64;
51  int r = __fstatat64_time64 (fd, file, &st64, flag);
52  if (r == 0)
53    {
54      if (! in_ino_t_range (st64.st_ino)
55	  || ! in_off_t_range (st64.st_size)
56	  || ! in_blkcnt_t_range (st64.st_blocks)
57	  || ! in_time_t_range (st64.st_atim.tv_sec)
58	  || ! in_time_t_range (st64.st_mtim.tv_sec)
59	  || ! in_time_t_range (st64.st_ctim.tv_sec))
60	return INLINE_SYSCALL_ERROR_RETURN_VALUE (EOVERFLOW);
61
62      /* Clear internal pad and reserved fields.  */
63      memset (buf, 0, sizeof (*buf));
64
65      buf->st_dev = st64.st_dev;
66      buf->st_ino = st64.st_ino;
67      buf->st_mode = st64.st_mode;
68      buf->st_nlink = st64.st_nlink;
69      buf->st_uid = st64.st_uid;
70      buf->st_gid = st64.st_gid;
71      buf->st_rdev = st64.st_rdev;
72      buf->st_size = st64.st_size;
73      buf->st_blksize = st64.st_blksize;
74      buf->st_blocks  = st64.st_blocks;
75      buf->st_atim = valid_timespec64_to_timespec (st64.st_atim);
76      buf->st_mtim = valid_timespec64_to_timespec (st64.st_mtim);
77      buf->st_ctim = valid_timespec64_to_timespec (st64.st_ctim);
78    }
79  return r;
80}
81
82weak_alias (__fstatat, fstatat)
83#endif