{in: testGroupFile, user: "user777", gid: "7", gids: []string{"7", "777", "1000"}},
	{in: testGroupFile, user: "user1111", gid: "1111", gids: []string{"1111", "1000"}},
	{in: testGroupFile, user: "user1000", gid: "1000", gids: []string{"1000"}},
	{in: testGroupFile, user: "user7500", gid: "7500", gids: []string{"1000", "7500"}},
	{in: testGroupFile, user: "no-such-user", gid: "2345", gids: []string{"2345"}},

			return nil, err
		}
	}

	var uids []*runtimeapi.IDMapping
	var gids []*runtimeapi.IDMapping

	for _, u := range userNs.UIDMappings {
		uids = append(uids, &runtimeapi.IDMapping{
			HostId:      u.HostId,
			ContainerId: u.ContainerId,
			Length:      u.Length,
		})
	}
	for _, g := range userNs.GIDMappings {
		gids = append(gids, &runtimeapi.IDMapping{
			HostId:      g.HostId,

	n, err = getgroups(n, &a[0])
	if err != nil {
		return nil, err
	}
	gids = make([]int, n)
	for i, v := range a[0:n] {
		gids[i] = int(v)
	}
	return
}

func Setgroups(gids []int) (err error) {
	if len(gids) == 0 {
		return setgroups(0, nil)
	}

	a := make([]_Gid_t, len(gids))
	for i, v := range gids {
		a[i] = _Gid_t(v)
	}
	return setgroups(len(a), &a[0])
}

func Getegid() int { return syscall.Getegid() }

// Getgroups returns a list of the numeric ids of groups that the caller belongs to.
//
// On Windows, it returns [syscall.EWINDOWS]. See the [os/user] package
// for a possible alternative.
func Getgroups() ([]int, error) {
	gids, e := syscall.Getgroups()
	return gids, NewSyscallError("getgroups", e)
}

// Exit causes the current program to exit with the given status code.

	n, err = getgroups(n, &a[0])
	if err != nil {
		return nil, err
	}
	gids = make([]int, n)
	for i, v := range a[0:n] {
		gids[i] = int(v)
	}
	return
}

func Setgroups(gids []int) (err error) {
	if len(gids) == 0 {
		return setgroups(0, nil)
	}

	a := make([]_Gid_t, len(gids))
	for i, v := range gids {
		a[i] = _Gid_t(v)
	}
	return setgroups(len(a), &a[0])
}

		}
		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

	n, err = getgroups(n, &a[0])
	if err != nil {
		return nil, err
	}
	gids = make([]int, n)
	for i, v := range a[0:n] {
		gids[i] = int(v)
	}
	return
}

func Setgroups(gids []int) (err error) {
	if len(gids) == 0 {
		return setgroups(0, nil)
	}

	a := make([]_Gid_t, len(gids))
	for i, v := range gids {
		a[i] = _Gid_t(v)
	}
	return setgroups(len(a), &a[0])
}

	n, err = getgroups(n, &a[0])
	if err != nil {
		return nil, err
	}
	gids = make([]int, n)
	for i, v := range a[0:n] {
		gids[i] = int(v)
	}
	return
}

func Setgroups(gids []int) (err error) {
	if len(gids) == 0 {
		return setgroups(0, nil)
	}

	a := make([]_Gid_t, len(gids))
	for i, v := range gids {
		a[i] = _Gid_t(v)
	}
	return setgroups(len(a), &a[0])
}

	nsec := nsec()
	*tv = NsecToTimeval(nsec)
	return nil
}

func Getegid() (egid int) { return -1 }
func Geteuid() (euid int) { return -1 }
func Getgid() (gid int)   { return -1 }
func Getuid() (uid int)   { return -1 }

func Getgroups() (gids []int, err error) {
	return make([]int, 0), nil
}

//sys	open(path string, mode int) (fd int, err error)

func Open(path string, mode int) (fd int, err error) {

		if cl.SecurityContext.NamespaceOptions.UsernsOptions != nil {
			for _, mount := range config.Mounts {
				mount.UidMappings = cl.SecurityContext.NamespaceOptions.UsernsOptions.Uids
				mount.GidMappings = cl.SecurityContext.NamespaceOptions.UsernsOptions.Gids
			}
		}
	}
	return nil
}

// generateLinuxContainerConfig generates linux container config for kubelet runtime v1.