musl/include/sys/statvfs.h

#ifndef	_SYS_STATVFS_H
#define	_SYS_STATVFS_H

#ifdef __cplusplus
extern "C" {
#endif

#if __STDC_VERSION__ >= 199901L
#define __restrict restrict
#elif !defined(__GNUC__)
#define __restrict
#endif

#define __NEED_fsblkcnt_t
#define __NEED_fsfilcnt_t
#include <bits/alltypes.h>

#include <endian.h>

struct statvfs {
	unsigned long f_bsize, f_frsize;
	fsblkcnt_t f_blocks, f_bfree, f_bavail;
	fsfilcnt_t f_files, f_ffree, f_favail;
#if __BYTE_ORDER == __LITTLE_ENDIAN
	unsigned long f_fsid;
	unsigned :8*(2*sizeof(int)-sizeof(long));
#else
	unsigned :8*(2*sizeof(int)-sizeof(long));
	unsigned long f_fsid;
#endif
	unsigned long f_flag, f_namemax;
	int __reserved[6];
};

int statvfs (const char *__restrict, struct statvfs *__restrict);
int fstatvfs (int, struct statvfs *);

#define ST_RDONLY 1
#define ST_NOSUID 2
#define ST_NODEV  4
#define ST_NOEXEC 8
#define ST_SYNCHRONOUS 16
#define ST_MANDLOCK    64
#define ST_WRITE       128
#define ST_APPEND      256
#define ST_IMMUTABLE   512
#define ST_NOATIME     1024
#define ST_NODIRATIME  2048

#if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)
#define statvfs64 statvfs
#define fstatvfs64 fstatvfs
#define fsblkcnt64_t fsblkcnt_t
#define fsfilcnt64_t fsfilcnt_t
#endif

#ifdef __cplusplus
}
#endif

#endif