1#include <sys/statvfs.h>
 2#include <sys/statfs.h>
 3#include "syscall.h"
 4
 5static int __statfs(const char *path, struct statfs *buf)
 6{
 7	*buf = (struct statfs){0};
 8#ifdef SYS_statfs64
 9	return syscall(SYS_statfs64, path, sizeof *buf, buf);
10#else
11	return syscall(SYS_statfs, path, buf);
12#endif
13}
14
15static int __fstatfs(int fd, struct statfs *buf)
16{
17	*buf = (struct statfs){0};
18#ifdef SYS_fstatfs64
19	return syscall(SYS_fstatfs64, fd, sizeof *buf, buf);
20#else
21	return syscall(SYS_fstatfs, fd, buf);
22#endif
23}
24
25weak_alias(__statfs, statfs);
26weak_alias(__fstatfs, fstatfs);
27
28static void fixup(struct statvfs *out, const struct statfs *in)
29{
30	*out = (struct statvfs){0};
31	out->f_bsize = in->f_bsize;
32	out->f_frsize = in->f_frsize ? in->f_frsize : in->f_bsize;
33	out->f_blocks = in->f_blocks;
34	out->f_bfree = in->f_bfree;
35	out->f_bavail = in->f_bavail;
36	out->f_files = in->f_files;
37	out->f_ffree = in->f_ffree;
38	out->f_favail = in->f_ffree;
39	out->f_fsid = in->f_fsid.__val[0];
40	out->f_flag = in->f_flags;
41	out->f_namemax = in->f_namelen;
42	out->f_type = in->f_type;
43}
44
45int statvfs(const char *restrict path, struct statvfs *restrict buf)
46{
47	struct statfs kbuf;
48	if (__statfs(path, &kbuf)<0) return -1;
49	fixup(buf, &kbuf);
50	return 0;
51}
52
53int fstatvfs(int fd, struct statvfs *buf)
54{
55	struct statfs kbuf;
56	if (__fstatfs(fd, &kbuf)<0) return -1;
57	fixup(buf, &kbuf);
58	return 0;
59}