if err != nil || p > 65535 {
			errs = multierror.Append(errs, fmt.Errorf("bad port (%s): %v", port, err))
		}
	}
	return errs.ErrorOrNil()
}

func validateMapKey(key string) error {
	open := strings.Index(key, "[")
	if strings.HasSuffix(key, "]") && open > 0 && open < len(key)-2 {
		return nil
	}
	return fmt.Errorf("bad key (%s): should have format a[b]", key)
}

	} else {
		t = 128 + 112 - len%128
	}

	// Length in bits.
	len <<= 3
	padlen := tmp[:t+16]
	// Upper 64 bits are always zero, because len variable has type uint64,
	// and tmp is already zeroed at that index, so we can skip updating it.
	// byteorder.BePutUint64(padlen[t+0:], 0)
	byteorder.BePutUint64(padlen[t+8:], len)
	d.Write(padlen)

	if d.nx != 0 {
		panic("d.nx != 0")
	}

	var digest [Size]byte

func isHostIP(ipAddress string) bool {
	host, _, err := net.SplitHostPort(ipAddress)
	if err != nil {
		host = ipAddress
	}
	// Strip off IPv6 zone information.
	if i := strings.Index(host, "%"); i > -1 {
		host = host[:i]
	}
	return net.ParseIP(host) != nil
}

// extractHostPort - extracts host/port from many address formats
// such as, ":9000", "localhost:9000", "http://localhost:9000/"

// for race detector logic. We don't use the actual pointer stored in x
// directly, for fear of conflicting with other synchronization on that address.
// Instead, we hash the pointer to get an index into poolRaceHash.
// See discussion on golang.org/cl/31589.
func poolRaceAddr(x any) unsafe.Pointer {
	ptr := uintptr((*[2]unsafe.Pointer)(unsafe.Pointer(&x))[1])
	h := uint32((uint64(uint32(ptr)) * 0x85ebca6b) >> 16)

		uid, gid := uint32(0), uint32(0)
		if attrs.UID != nil {
			uid = *attrs.UID
		}
		if attrs.GID != nil {
			gid = *attrs.GID
		}
		inDev, outDev := "", ""
		if attrs.InDev != nil {
			ii, err := net.InterfaceByIndex(int(*attrs.InDev))
			if err == nil {
				inDev = ii.Name
			}
		}
		if attrs.OutDev != nil {
			ii, err := net.InterfaceByIndex(int(*attrs.OutDev))
			if err == nil {
				outDev = ii.Name
			}