static int constructConnectVariableHeader()

in src/mqtt_codec.c [196:224]

• 29 lines of code
• 4 McCabe index (conditional complexity)

static int constructConnectVariableHeader(BUFFER_HANDLE ctrlPacket, const MQTT_CLIENT_OPTIONS* mqttOptions, STRING_HANDLE trace_log)
{
    int result = 0;
    if (BUFFER_enlarge(ctrlPacket, CONNECT_VARIABLE_HEADER_SIZE) != 0)
    {
        result = MU_FAILURE;
    }
    else
    {
        uint8_t* iterator = BUFFER_u_char(ctrlPacket);
        if (iterator == NULL)
        {
            result = MU_FAILURE;
        }
        else
        {
            if (trace_log != NULL)
            {
                STRING_sprintf(trace_log, " | VER: %d | KEEPALIVE: %d | FLAGS:", PROTOCOL_NUMBER, mqttOptions->keepAliveInterval);
            }
            byteutil_writeUTF(&iterator, "MQTT", 4);
            byteutil_writeByte(&iterator, PROTOCOL_NUMBER);
            byteutil_writeByte(&iterator, 0); // Flags will be entered later
            byteutil_writeInt(&iterator, mqttOptions->keepAliveInterval);
            result = 0;
        }
    }
    return result;
}