static SntpStatus_t addClientAuthentication()

in source/core_sntp_client.c [382:425]
34 lines of code
3 McCabe index (conditional complexity)

static SntpStatus_t addClientAuthentication( SntpContext_t * pContext )
{
    SntpStatus_t status = SntpSuccess;
    uint16_t authDataSize = 0U;

    assert( pContext != NULL );
    assert( pContext->authIntf.generateClientAuth != NULL );
    assert( pContext->currentServerIndex <= pContext->numOfServers );

    status = pContext->authIntf.generateClientAuth( pContext->authIntf.pAuthContext,
                                                    &pContext->pTimeServers[ pContext->currentServerIndex ],
                                                    pContext->pNetworkBuffer,
                                                    pContext->bufferSize,
                                                    &authDataSize );

    if( status != SntpSuccess )
    {
        LogError( ( "Unable to send time request: Client authentication function failed: "
                    "RetStatus=%s", Sntp_StatusToStr( status ) ) );
    }

    /* Sanity check that the returned authentication data size fits in the remaining space
     * of the request buffer besides the first #SNTP_PACKET_BASE_SIZE bytes. */
    else if( authDataSize > ( pContext->bufferSize - SNTP_PACKET_BASE_SIZE ) )
    {
        LogError( ( "Unable to send time request: Invalid authentication code size: "
                    "AuthCodeSize=%lu, NetworkBufferSize=%lu",
                    ( unsigned long ) authDataSize, ( unsigned long ) pContext->bufferSize ) );
        status = SntpErrorAuthFailure;
    }
    else
    {
        /* With the authentication data added. calculate total SNTP request packet size. The same
         * size would be expected in the SNTP response from server. */
        pContext->sntpPacketSize = SNTP_PACKET_BASE_SIZE + authDataSize;

        LogInfo( ( "Appended client authentication code to SNTP request packet:"
                   " AuthCodeSize=%lu, TotalPacketSize=%lu",
                   ( unsigned long ) authDataSize,
                   ( unsigned long ) pContext->sntpPacketSize ) );
    }

    return status;
}