n = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func Fchown(fd int, uid int, gid int) (err error) {
	_, _, e1 := Syscall(SYS_FCHOWN, uintptr(fd), uintptr(uid), uintptr(gid))
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func Fstat(fd int, stat *Stat_t) (err error) {

//sys	Adjtime(delta *Timeval, olddelta *Timeval) (err error)
//sys	Chdir(path string) (err error)
//sys	Chflags(path string, flags int) (err error)
//sys	Chmod(path string, mode uint32) (err error)
//sys	Chown(path string, uid int, gid int) (err error)
//sys	Chroot(path string) (err error)
//sys	Close(fd int) (err error)
//sys	closedir(dir uintptr) (err error)
//sys	Dup(fd int) (nfd int, err error)
//sys	Dup2(from int, to int) (err error)

func getgroups(ngid int, gid *_Gid_t) (n int, err error) {
	r0, _, e1 := RawSyscall(SYS_GETGROUPS, uintptr(ngid), uintptr(unsafe.Pointer(gid)), 0)
	n = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func setgroups(ngid int, gid *_Gid_t) (err error) {

func getgroups(ngid int, gid *_Gid_t) (n int, err error) {
	r0, _, e1 := RawSyscall(SYS_GETGROUPS, uintptr(ngid), uintptr(unsafe.Pointer(gid)), 0)
	n = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func setgroups(ngid int, gid *_Gid_t) (err error) {

	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func Fchown(fd int, uid int, gid int) (err error) {
	_, _, e1 := Syscall(SYS_FCHOWN, uintptr(fd), uintptr(uid), uintptr(gid))
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func getgroups(ngid int, gid *_Gid_t) (n int, err error) {
	r0, _, e1 := rawSyscall6(uintptr(unsafe.Pointer(&libc_getgroups)), 2, uintptr(ngid), uintptr(unsafe.Pointer(gid)), 0, 0, 0, 0)
	n = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func setgroups(ngid int, gid *_Gid_t) (err error) {

	}
	n := clen(buf[:])
	if n < 1 {
		return "", EINVAL
	}
	return string(buf[:n]), nil
}

/*
 * Wrapped
 */

//sysnb	getgroups(ngid int, gid *_Gid_t) (n int, err error)
//sysnb	setgroups(ngid int, gid *_Gid_t) (err error)

func Getgroups() (gids []int, err error) {
	n, err := getgroups(0, nil)
	if err != nil {
		return nil, err
	}
	if n == 0 {
		return nil, nil
	}

	Max uint64
}

type _Gid_t uint32

type Stat_t struct {
	Dev               uint64
	Ino               uint64
	Mode              uint32
	Nlink             uint32
	Uid               uint32
	Gid               uint32
	Rdev              uint64
	X__pad1           uint64
	Size              int64
	Blksize           int32
	X__pad2           int32
	Blocks            int64
	Atim              Timespec

		}
		return EACCES
	}

	var fmode uint32
	if uint32(uid) == st.Uid {
		fmode = (st.Mode >> 6) & 7
	} else {
		var gid int
		if flags&_AT_EACCESS != 0 {
			gid = Getegid()
		} else {
			gid = Getgid()
		}

		if uint32(gid) == st.Gid || isGroupMember(int(st.Gid)) {
			fmode = (st.Mode >> 3) & 7
		} else {
			fmode = st.Mode & 7
		}
	}

	if fmode&mode == mode {
		return nil

	SYS_LCHOWN               = 275 // { int|sys||lchown(const char *path, uid_t uid, gid_t gid); }
	SYS___POSIX_CHOWN        = 283 // { int|sys||__posix_chown(const char *path, uid_t uid, gid_t gid); }
	SYS___POSIX_FCHOWN       = 284 // { int|sys||__posix_fchown(int fd, uid_t uid, gid_t gid); }
	SYS___POSIX_LCHOWN       = 285 // { int|sys||__posix_lchown(const char *path, uid_t uid, gid_t gid); }
	SYS_GETSID               = 286 // { pid_t|sys||getsid(pid_t pid); }