Function WriteNameCompressed

engine/dlib/src/test/test_mdns.cpp:555–590

    }

    static void WriteNameCompressed(std::vector<uint8_t>* buffer, const char* name, std::map<std::string, uint16_t>* suffix_offsets)
    {
        const bool enable_compression = suffix_offsets != 0;
        const char* cursor = name;
        while (*cursor)
        {
            if (enable_compression)
            {
                std::map<std::string, uint16_t>::iterator it = suffix_offsets->find(cursor);
                if (it != suffix_offsets->end())
                {
                    const uint16_t pointer = it->second;
                    buffer->push_back((uint8_t) (0xC0 | ((pointer >> 8) & 0x3F)));
                    buffer->push_back((uint8_t) (pointer & 0xFF));
                    return;
                }

                (*suffix_offsets)[cursor] = (uint16_t) buffer->size();
            }

            char label[63];
            uint32_t label_len = 0;
            while (*cursor && *cursor != '.')
            {
                ASSERT_TRUE(label_len < sizeof(label));
                ASSERT_TRUE(DecodeEscapedChar(&cursor, &label[label_len]));
                ++label_len;
            }
            buffer->push_back((uint8_t) label_len);
            buffer->insert(buffer->end(), label, label + label_len);
            if (*cursor == '.')
                ++cursor;
        }

        buffer->push_back(0);
    }

    static void BuildResponsePacket(const RawDnsResponseRecord* records, uint32_t record_count, bool compress_names, std::vector<uint8_t>* buffer)
    {