BUFFER_HANDLE mqtt_codec_ping()

in src/mqtt_codec.c [894:923]

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

BUFFER_HANDLE mqtt_codec_ping()
{
    /* Codes_SRS_MQTT_CODEC_07_021: [On success mqtt_codec_ping shall construct a BUFFER_HANDLE that represents a MQTT PINGREQ packet.] */
    BUFFER_HANDLE result = BUFFER_new();
    if (result != NULL)
    {
        if (BUFFER_enlarge(result, 2) != 0)
        {
            /* Codes_SRS_MQTT_CODEC_07_022: [If any error is encountered mqtt_codec_ping shall return NULL.] */
            BUFFER_delete(result);
            result = NULL;
        }
        else
        {
            uint8_t* iterator = BUFFER_u_char(result);
            if (iterator == NULL)
            {
                /* Codes_SRS_MQTT_CODEC_07_022: [If any error is encountered mqtt_codec_ping shall return NULL.] */
                BUFFER_delete(result);
                result = NULL;
            }
            else
            {
                iterator[0] = PINGREQ_TYPE;
                iterator[1] = 0;
            }
        }
    }
    return result;
}