gids := make([]string, 0, n)
	for _, g := range gidsC[:n] {
		gids = append(gids, strconv.Itoa(int(g)))
	}
	return gids, nil
}

// groupRetry retries getGroupList with much larger size for n. The result is
// stored in gids.
func groupRetry(username string, name []byte, userGID _C_gid_t, gids *[]_C_gid_t, n *_C_int) error {
	// More than initial buffer, but now n contains the correct size.
	if *n > maxGroups {

	// input
	in   string
	user string
	gid  string
	// output
	gids []string
	err  bool
}{
	{in: testGroupFile, user: "root", gid: "0", gids: []string{"0", "1", "2", "7"}},
	{in: testGroupFile, user: "jill", gid: "33", gids: []string{"33", "777"}},
	{in: testGroupFile, user: "jody", gid: "34", gids: []string{"34", "777"}},
	{in: testGroupFile, user: "john", gid: "35", gids: []string{"35", "777"}},

//go:build !osusergo && darwin

package user

import (
	"internal/syscall/unix"
)

func getGroupList(name *_C_char, userGID _C_gid_t, gids *_C_gid_t, n *_C_int) _C_int {
	err := unix.Getgrouplist(name, userGID, gids, n)
	if err != nil {
		return -1
	}
	return 0

	return getgrouplist(user, group, groups, ngroups);
}
*/
import "C"

func getGroupList(name *_C_char, userGID _C_gid_t, gids *_C_gid_t, n *_C_int) _C_int {
	return C.mygetgrouplist(name, userGID, gids, 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 ReadDirent(fd int, buf []byte) (n int, err error) {
	// Final argument is (basep *uintptr) and the syscall doesn't take nil.

		groupsToCreate []*entry
		uids           []int64
		gids           []int64
		expectedUsers  []*entry
		expectedGroups []*entry
		expectedError  bool
	}{
		{
			name: "not enough UIDs",
			usersToCreate: []*entry{
				{name: "foo"},
				{name: "bar"},
			},
			uids:          []int64{100},
			expectedError: true,
		},
		{
			name: "not enough GIDs",
			groupsToCreate: []*entry{
				{name: "foo"},

		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])
}

// Wait status is 7 bits at bottom, either 0 (exited),
// 0x7F (stopped), or a signal number that caused an exit.
// The 0x80 bit is whether there was a core dump.

			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,
			ContainerId: g.ContainerId,

	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])
}

// and assigns UIDs and GIDs to the users and groups to be created based on a list of provided UIDs and GIDs.
// Returns an error if not enough UIDs or GIDs are passed. It does not perform any other validation.
func assignUserAndGroupIDs(groups, usersToCreate, groupsToCreate []*entry, uids, gids []int64) error {
	if len(gids) < len(groupsToCreate) {