func Uname(uname *Utsname) error {
	mib := []_C_int{CTL_KERN, KERN_OSTYPE}
	n := unsafe.Sizeof(uname.Sysname)
	// Suppress ENOMEM errors to be compatible with the C library __xuname() implementation.
	if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil && !errors.Is(err, ENOMEM) {
		return err
	}

	mib = []_C_int{CTL_KERN, KERN_HOSTNAME}
	n = unsafe.Sizeof(uname.Nodename)

const (
	paxNone     = "" // Indicates that no PAX key is suitable
	paxPath     = "path"
	paxLinkpath = "linkpath"
	paxSize     = "size"
	paxUid      = "uid"
	paxGid      = "gid"
	paxUname    = "uname"
	paxGname    = "gname"
	paxMtime    = "mtime"
	paxAtime    = "atime"
	paxCtime    = "ctime"   // Removed from later revision of PAX spec, but was valid
	paxCharset  = "charset" // Currently unused

// The key must not contain an '=' character.
func validPAXRecord(k, v string) bool {
	if k == "" || strings.Contains(k, "=") {
		return false
	}
	switch k {
	case paxPath, paxLinkpath, paxUname, paxGname:
		return !hasNUL(v)
	default:
		return !hasNUL(k)
	}

		if v == "" {
			continue // Keep the original USTAR value
		}
		var id64 int64
		switch k {
		case paxPath:
			hdr.Name = v
		case paxLinkpath:
			hdr.Linkname = v
		case paxUname:
			hdr.Uname = v
		case paxGname:
			hdr.Gname = v
		case paxUid:
			id64, err = strconv.ParseInt(v, 10, 64)
			hdr.Uid = int(id64) // Integer overflow possible
		case paxGid:

new Error("DuplicateDefinitionError: a type with name '"+String(t)+"' is already registered");return c.prototype||(c.prototype=Object.create(HTMLElement.prototype)),c.__name=t.toLowerCase(),c["extends"]&&(c["extends"]=c["extends"].toLowerCase()),c.lifecycle=c.lifecycle||{},c.ancestry=i(c["extends"]),a(c),s(c),n(c.prototype),u(c.__name,c),c.ctor=d(c),c.ctor.prototype=c.prototype,c.prototype.constructor=c.ctor,e.ready&&w(document),c.ctor}function n(e){if(!e.setAttribute._polyfilled){var t=e.setAttri...