name = append(name, '.')
			currOff = endOff
		case 0xC0: // Pointer
			if currOff >= len(msg) {
				return off, errInvalidPtr
			}
			c1 := msg[currOff]
			currOff++
			if ptr == 0 {
				newOff = currOff
			}
			// Don't follow too many pointers, maybe there's a loop.
			if ptr++; ptr > 10 {
				return off, errTooManyPtr
			}
			currOff = (c^0xC0)<<8 | int(c1)
		default: