Linux kernel mirror (for testing)
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linux
1/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
2/*
3 * stat definition for NOLIBC
4 * Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu>
5 */
6
7/* make sure to include all global symbols */
8#include "../nolibc.h"
9
10#ifndef _NOLIBC_SYS_STAT_H
11#define _NOLIBC_SYS_STAT_H
12
13#include "../arch.h"
14#include "../types.h"
15#include "../sys.h"
16
17/*
18 * int statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf);
19 * int stat(const char *path, struct stat *buf);
20 * int fstatat(int fd, const char *path, struct stat *buf, int flag);
21 * int fstat(int fildes, struct stat *buf);
22 * int lstat(const char *path, struct stat *buf);
23 */
24
25static __attribute__((unused))
26int sys_statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf)
27{
28#ifdef __NR_statx
29 return my_syscall5(__NR_statx, fd, path, flags, mask, buf);
30#else
31 return __nolibc_enosys(__func__, fd, path, flags, mask, buf);
32#endif
33}
34
35static __attribute__((unused))
36int statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf)
37{
38 return __sysret(sys_statx(fd, path, flags, mask, buf));
39}
40
41
42static __attribute__((unused))
43int fstatat(int fd, const char *path, struct stat *buf, int flag)
44{
45 struct statx statx;
46 long ret;
47
48 ret = __sysret(sys_statx(fd, path, flag | AT_NO_AUTOMOUNT, STATX_BASIC_STATS, &statx));
49 if (ret == -1)
50 return ret;
51
52 buf->st_dev = ((statx.stx_dev_minor & 0xff)
53 | (statx.stx_dev_major << 8)
54 | ((statx.stx_dev_minor & ~0xff) << 12));
55 buf->st_ino = statx.stx_ino;
56 buf->st_mode = statx.stx_mode;
57 buf->st_nlink = statx.stx_nlink;
58 buf->st_uid = statx.stx_uid;
59 buf->st_gid = statx.stx_gid;
60 buf->st_rdev = ((statx.stx_rdev_minor & 0xff)
61 | (statx.stx_rdev_major << 8)
62 | ((statx.stx_rdev_minor & ~0xff) << 12));
63 buf->st_size = statx.stx_size;
64 buf->st_blksize = statx.stx_blksize;
65 buf->st_blocks = statx.stx_blocks;
66 buf->st_atim.tv_sec = statx.stx_atime.tv_sec;
67 buf->st_atim.tv_nsec = statx.stx_atime.tv_nsec;
68 buf->st_mtim.tv_sec = statx.stx_mtime.tv_sec;
69 buf->st_mtim.tv_nsec = statx.stx_mtime.tv_nsec;
70 buf->st_ctim.tv_sec = statx.stx_ctime.tv_sec;
71 buf->st_ctim.tv_nsec = statx.stx_ctime.tv_nsec;
72
73 return 0;
74}
75
76static __attribute__((unused))
77int stat(const char *path, struct stat *buf)
78{
79 return fstatat(AT_FDCWD, path, buf, 0);
80}
81
82static __attribute__((unused))
83int fstat(int fildes, struct stat *buf)
84{
85 return fstatat(fildes, "", buf, AT_EMPTY_PATH);
86}
87
88static __attribute__((unused))
89int lstat(const char *path, struct stat *buf)
90{
91 return fstatat(AT_FDCWD, path, buf, AT_SYMLINK_NOFOLLOW);
92}
93
94#endif /* _NOLIBC_SYS_STAT_H */