Method WritePacketBytes

utils/binary/builder.go:81–104

WritePacketBytes prefix must not be empty

(v []byte, prefix string, withPrefix bool)

// WritePacketBytes prefix must not be empty
func (b *Builder) WritePacketBytes(v []byte, prefix string, withPrefix bool) *Builder {
	n := len(v)
	if withPrefix {
		plus, err := strconv.Atoi(prefix[1:])
		if err != nil {
			panic(err)
		}
		n += plus / 8
	}
	switch prefix {
	case "u8":
		b.WriteU8(uint8(n))
	case "u16":
		b.WriteU16(uint16(n))
	case "u32":
		b.WriteU32(uint32(n))
	case "u64":
		b.WriteU64(uint64(n))
	default:
		panic("invaild prefix")
	}
	b.WriteBytes(v)
	return b
}

func (b *Builder) WritePacketString(s, prefix string, withPrefix bool) *Builder {
	return b.WritePacketBytes(utils.S2B(s), prefix, withPrefix)