"strconv"
	"strings"
	"syscall"
	"testing"
	"time"
	"unsafe"
)

// whoamiNEWUSER returns a command that runs "whoami" with CLONE_NEWUSER,
// mapping uid and gid 0 to the actual uid and gid of the test.
func whoamiNEWUSER(t *testing.T, uid, gid int, setgroups bool) *exec.Cmd {
	t.Helper()
	testenv.MustHaveExecPath(t, "whoami")
	cmd := testenv.Command(t, "whoami")
	cmd.SysProcAttr = &syscall.SysProcAttr{

					"-o", "lo", "-m", "owner", "!", "--gid-owner", gid, "-j", constants.RETURN)
			}
		}

		// Avoid infinite loops. Don't redirect Envoy traffic directly back to
		// Envoy for non-loopback traffic.
		cfg.ruleBuilder.AppendRule(iptableslog.UndefinedCommand, constants.ISTIOOUTPUT, constants.NAT, "-m", "owner", "--gid-owner", gid, "-j", constants.RETURN)
	}

		{call: "Setregid(101,0)", fn: func() error { return syscall.Setregid(101, 0) }, filter: "Gid:", expect: "\t101\t0\t0\t0"},
		{call: "Setregid(0,102)", fn: func() error { return syscall.Setregid(0, 102) }, filter: "Gid:", expect: "\t0\t102\t102\t102"},
		{call: "Setregid(0,0)", fn: func() error { return syscall.Setregid(0, 0) }, filter: "Gid:", expect: "\t0\t0\t0\t0"},

	verifyString(h.Gname, len(ustar.groupName()), "Gname", paxGname)
	verifyNumeric(h.Mode, len(v7.mode()), "Mode", paxNone)
	verifyNumeric(int64(h.Uid), len(v7.uid()), "Uid", paxUid)
	verifyNumeric(int64(h.Gid), len(v7.gid()), "Gid", paxGid)
	verifyNumeric(h.Size, len(v7.size()), "Size", paxSize)
	verifyNumeric(h.Devmajor, len(ustar.devMajor()), "Devmajor", paxNone)
	verifyNumeric(h.Devminor, len(ustar.devMinor()), "Devminor", paxNone)

				Uid:      73025,
				Gid:      5000,
				Uname:    "dsymonds",
				Gname:    "eng",
				ModTime:  time.Unix(1246508266, 0),
			}, nil},
			testWrite{"Kilts", 5, nil},

			testHeader{Header{
				Typeflag: TypeReg,
				Name:     "small2.txt",
				Size:     11,
				Mode:     0640,
				Uid:      73025,
				Uname:    "dsymonds",
				Gname:    "eng",
				Gid:      5000,

}

// getExtraSupplementalGid returns the value of an extra supplemental GID as
// defined by an annotation on a volume and a boolean indicating whether the
// volume defined a GID that the pod doesn't already request.
func getExtraSupplementalGid(volumeGidValue string, pod *v1.Pod) (int64, bool) {
	if volumeGidValue == "" {
		return 0, false
	}

	gid, err := strconv.ParseInt(volumeGidValue, 10, 64)
	if err != nil {

		return
	}

	if len(userNs.UIDMappings) != len(userNs.GIDMappings) {
		err = fmt.Errorf("invalid user namespace configuration: GID and UID mappings should be identical.")
		return
	}

	if userNs.UIDMappings[0] != userNs.GIDMappings[0] {
		err = fmt.Errorf("invalid user namespace configuration: GID and UID mapping should be identical")
		return
	}

}

func Fchmod(fd int, mode uint32) error {
	var stat Stat_t
	return Fstat(fd, &stat)
}

func Chown(path string, uid, gid int) error {
	return ENOSYS
}

func Fchown(fd int, uid, gid int) error {
	return ENOSYS
}

func Lchown(path string, uid, gid int) error {
	return ENOSYS
}

func UtimesNano(path string, ts []Timespec) error {

			it.preInit = false
			for gid := range it.createdPreInit {
				// These are goroutines that already existed when tracing started but for which we
				// received neither GoWaiting, GoInSyscall, or GoStart. These are goroutines that are in
				// the states _Gidle or _Grunnable.
				it.extra = append(it.extra, Event{
					ctx: schedCtx{
						// G: GoID(gid),
						G: NoGoroutine,
						P: NoProc,

	PPS_GETCAP    = 0x400870a3
	PPS_FETCH     = 0xc00870a4
)

const (
	PIDFD_NONBLOCK = 0x80
)

type SysvIpcPerm struct {
	Key  int32
	Uid  uint32
	Gid  uint32
	Cuid uint32
	Cgid uint32
	Mode uint32
	_    [0]uint8
	Seq  uint16
	_    uint16
	_    uint64
	_    uint64
}
type SysvShmDesc struct {
	Perm   SysvIpcPerm
	Segsz  uint64
	Atime  int64