1#define _GNU_SOURCE
 2#include <sys/stat.h>
 3#include <string.h>
 4#include <syscall.h>
 5#include <sys/sysmacros.h>
 6#include <errno.h>
 7
 8int statx(int dirfd, const char *restrict path, int flags, unsigned mask, struct statx *restrict stx)
 9{
10	int ret = __syscall(SYS_statx, dirfd, path, flags, mask, stx);
11
12#ifndef SYS_fstatat
13	return __syscall_ret(ret);
14#endif
15
16	if (ret != -ENOSYS) return __syscall_ret(ret);
17
18	struct stat st;
19	ret = fstatat(dirfd, path, &st, flags);
20	if (ret) return ret;
21
22	stx->stx_dev_major = major(st.st_dev);
23	stx->stx_dev_minor = minor(st.st_dev);
24	stx->stx_ino = st.st_ino;
25	stx->stx_mode = st.st_mode;
26	stx->stx_nlink = st.st_nlink;
27	stx->stx_uid = st.st_uid;
28	stx->stx_gid = st.st_gid;
29	stx->stx_size = st.st_size;
30	stx->stx_blksize = st.st_blksize;
31	stx->stx_blocks = st.st_blocks;
32	stx->stx_atime.tv_sec = st.st_atim.tv_sec;
33	stx->stx_atime.tv_nsec = st.st_atim.tv_nsec;
34	stx->stx_mtime.tv_sec = st.st_mtim.tv_sec;
35	stx->stx_mtime.tv_nsec = st.st_mtim.tv_nsec;
36	stx->stx_ctime.tv_sec = st.st_ctim.tv_sec;
37	stx->stx_ctime.tv_nsec = st.st_ctim.tv_nsec;
38	stx->stx_btime = (struct statx_timestamp){.tv_sec=0, .tv_nsec=0};
39	stx->stx_mask = STATX_BASIC_STATS;
40
41	return 0;
42}