1/* xstat using old-style Unix stat system call.
2 Copyright (C) 1991-2022 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#include <sys/stat.h>
20#include <fcntl.h>
21#include <kernel_stat.h>
22#include <sysdep.h>
23
24#if !XSTAT_IS_XSTAT64
25# include <xstatconv.h>
26# include <xstatover.h>
27# include <shlib-compat.h>
28
29# if LIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_33)
30
31/* Get information about the file NAME in BUF. */
32int
33__xstat (int vers, const char *name, struct stat *buf)
34{
35 switch (vers)
36 {
37 case _STAT_VER_KERNEL:
38 {
39# if STAT_IS_KERNEL_STAT
40 /* New kABIs which uses generic pre 64-bit time Linux ABI,
41 e.g. csky, nios2 */
42 int r = INLINE_SYSCALL_CALL (fstatat64, AT_FDCWD, name, buf, 0);
43 return r ?: stat_overflow (buf);
44# else
45 /* Old kABIs with old non-LFS support, e.g. arm, i386, hppa, m68k,
46 microblaze, s390, sh, powerpc, and sparc32. */
47 return INLINE_SYSCALL_CALL (stat, name, buf);
48# endif
49 }
50
51 default:
52 {
53# if STAT_IS_KERNEL_STAT
54 return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
55# else
56 struct stat64 buf64;
57 int r = INLINE_SYSCALL_CALL (stat64, name, &buf64);
58 return r ?: __xstat32_conv (vers, &buf64, buf);
59#endif
60 }
61 }
62}
63
64# endif /* LIB_COMPAT */
65
66#endif /* XSTAT_IS_XSTAT64 */
67

source code of glibc/sysdeps/unix/sysv/linux/xstat.c