SYS_FCHOWNAT             = 464 // { int|sys||fchownat(int fd, const char *path, uid_t owner, gid_t group, int flag); }
	SYS_FEXECVE              = 465 // { int|sys||fexecve(int fd, char * const *argp, char * const *envp); }
	SYS_FSTATAT              = 466 // { int|sys||fstatat(int fd, const char *path, struct stat *buf, int flag); }

//sys	Open(path string, mode int, perm uint32) (fd int, err error)
//sys	Openat(dirfd int, path string, mode int, perm uint32) (fd int, err error)
//sys	Pathconf(path string, name int) (val int, err error)
//sys	pread(fd int, p []byte, offset int64) (n int, err error)
//sys	pwrite(fd int, p []byte, offset int64) (n int, err error)
//sys	read(fd int, p []byte) (n int, err error)

	SYS_CAP_IOCTLS_GET           = 535 // { ssize_t cap_ioctls_get(int fd, u_long *cmds, size_t maxcmds); }
	SYS_CAP_FCNTLS_LIMIT         = 536 // { int cap_fcntls_limit(int fd, uint32_t fcntlrights); }
	SYS_CAP_FCNTLS_GET           = 537 // { int cap_fcntls_get(int fd, uint32_t *fcntlrightsp); }
	SYS_BINDAT                   = 538 // { int bindat(int fd, int s, caddr_t name, int namelen); }

	}
	f := &jsFile{
		path:    path,
		entries: entries,
	}
	filesMu.Lock()
	files[fd] = f
	filesMu.Unlock()
	return fd, nil
}

func Close(fd int) error {
	filesMu.Lock()
	delete(files, fd)
	filesMu.Unlock()
	_, err := fsCall("close", fd)
	return err
}

func CloseOnExec(fd int) {
	// nothing to do - no exec
}

func Mkdir(path string, perm uint32) error {

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

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

func Fstatfs(fd int, buf *Statfs_t) (err error) {
	_, _, e1 := Syscall(SYS_FSTATFS, uintptr(fd), uintptr(unsafe.Pointer(buf)), 0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

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

	SYS_READV          = 120 // { ssize_t sys_readv(int fd, \
	SYS_WRITEV         = 121 // { ssize_t sys_writev(int fd, \
	SYS_KILL           = 122 // { int sys_kill(int pid, int signum); }
	SYS_FCHOWN         = 123 // { int sys_fchown(int fd, uid_t uid, gid_t gid); }
	SYS_FCHMOD         = 124 // { int sys_fchmod(int fd, mode_t mode); }
	SYS_SETREUID       = 126 // { int sys_setreuid(uid_t ruid, uid_t euid); }

			return err
		}
	}
	return sendto(fd, p, flags, ptr, salen)
}

func SetsockoptByte(fd, level, opt int, value byte) (err error) {
	return setsockopt(fd, level, opt, unsafe.Pointer(&value), 1)
}

func SetsockoptInt(fd, level, opt int, value int) (err error) {
	var n = int32(value)
	return setsockopt(fd, level, opt, unsafe.Pointer(&n), 4)
}

func SetsockoptInet4Addr(fd, level, opt int, value [4]byte) (err error) {

}

func Socketpair(domain, typ, proto int) (fd [2]int, err error) {
	var fdx [2]int32
	err = socketpair(domain, typ, proto, &fdx)
	if err == nil {
		fd[0] = int(fdx[0])
		fd[1] = int(fdx[1])
	}
	return
}

var ioSync int64

func CloseOnExec(fd int) { fcntl(fd, F_SETFD, FD_CLOEXEC) }

func SetNonblock(fd int, nonblocking bool) (err error) {
	flag, err := fcntl(fd, F_GETFL, 0)
	if err != nil {

	SYS_MKFIFOAT       = 319 // { int sys_mkfifoat(int fd, const char *path, mode_t mode); }
	SYS_MKNODAT        = 320 // { int sys_mknodat(int fd, const char *path, mode_t mode, dev_t dev); }
	SYS_OPENAT         = 321 // { int sys_openat(int fd, const char *path, int flags, ... mode_t mode); }

	SYS_MKFIFOAT       = 319 // { int sys_mkfifoat(int fd, const char *path, mode_t mode); }
	SYS_MKNODAT        = 320 // { int sys_mknodat(int fd, const char *path, mode_t mode, dev_t dev); }
	SYS_OPENAT         = 321 // { int sys_openat(int fd, const char *path, int flags, ... mode_t mode); }