explicit LogonInfoVersion1_Recv(InStream & stream) :
    cbDomain(0),
    cbUserName(0),
    SessionId(0) {
        memset(Domain,   0, sizeof(Domain));
        memset(UserName, 0, sizeof(UserName));

        unsigned expected = 4;  // cbDomain(4)
        if (!stream.in_check_rem(expected)) {
            LOG(LOG_ERR,
                "Truncated Logon Info Version 1 (data): expected=%u remains=%zu",
                expected, stream.in_remain());
            throw Error(ERR_RDP_DATA_TRUNCATED);
        }

        this->cbDomain = stream.in_uint32_le();

        expected = 52 +	// Domain(52)
                   4;   // cbUserName(4)
        if (!stream.in_check_rem(expected)) {
            LOG(LOG_ERR,
                "Truncated Logon Info Version 1 (data): expected=%u remains=%zu",
                expected, stream.in_remain());
            throw Error(ERR_RDP_DATA_TRUNCATED);
        }

        stream.in_uni_to_ascii_str(this->Domain, this->cbDomain,
            sizeof(this->Domain));

        stream.in_skip_bytes(52 -  // Domain(52)
            this->cbDomain);

        this->cbUserName = stream.in_uint32_le();

        expected = 512 +    // UserName(512)
                   4;       // SessionId(4)
        if (!stream.in_check_rem(expected)) {
            LOG(LOG_ERR,
                "Truncated Logon Info Version 1 (data): expected=%u remains=%zu",
                expected, stream.in_remain());
            throw Error(ERR_RDP_DATA_TRUNCATED);
        }

        stream.in_uni_to_ascii_str(this->UserName, this->cbUserName,
            sizeof(this->UserName));

        stream.in_skip_bytes(512 - // UserName(512)
            this->cbUserName);

        this->SessionId = stream.in_uint32_le();

        LOG(LOG_INFO,
            "Logon Info Version 1 (data): Domain=\"%s\" UserName=\"%s\" SessionId=%d",
            this->Domain, this->UserName, this->SessionId);
    }   // LogonInfoVersion1_Recv(InStream & stream)
    explicit LogonInfoVersion2_Recv(InStream & stream) :
    Version(0),
    Size(0),
    SessionId(0),
    cbDomain(0),
    cbUserName(0) {
        memset(Pad,      0, sizeof(Pad));
        memset(Domain,   0, sizeof(Domain));
        memset(UserName, 0, sizeof(UserName));

        unsigned expected = 2 +     // Version(2)
                            4 +     // Size(4)
                            4 +     // SessionId(4)
                            4 +     // cbDomain(4)
                            4 +     // cbUserName(4)
                            558;    // Pad(558)
        if (!stream.in_check_rem(expected)) {
            LOG(LOG_ERR,
                "Truncated Logon Info Version 2 (data): expected=%u remains=%zu",
                expected, stream.in_remain());
            throw Error(ERR_RDP_DATA_TRUNCATED);
        }

        this->Version    = stream.in_uint16_le();
        this->Size       = stream.in_uint32_le();
        this->SessionId  = stream.in_uint32_le();
        this->cbDomain   = stream.in_uint32_le();
        this->cbUserName = stream.in_uint32_le();

        stream.in_copy_bytes(this->Pad, sizeof(this->Pad));

        expected = this->cbDomain +
                   this->cbUserName;    // SessionId(4)
        if (!stream.in_check_rem(expected)) {
            LOG(LOG_ERR,
                "Truncated Logon Info Version 2 (data): expected=%u remains=%zu",
                expected, stream.in_remain());
            throw Error(ERR_RDP_DATA_TRUNCATED);
        }

        stream.in_uni_to_ascii_str(this->Domain, this->cbDomain,
            sizeof(this->Domain));
        stream.in_uni_to_ascii_str(this->UserName, this->cbUserName,
            sizeof(this->UserName));

        LOG(LOG_INFO,
            "Logon Info Version 2 (data): Domain=\"%s\" UserName=\"%s\" SessionId=%d",
            this->Domain, this->UserName, this->SessionId);
    }   // LogonInfoVersion2_Recv(InStream & stream)