AzureIoTResult_t AzureIoTProvisioningClient_GetDeviceAndHub()

in source/azure_iot_provisioning_client.c [909:959]

• 48 lines of code
• 10 McCabe index (conditional complexity)

AzureIoTResult_t AzureIoTProvisioningClient_GetDeviceAndHub( AzureIoTProvisioningClient_t * pxAzureProvClient,
                                                             uint8_t * pucHubHostname,
                                                             uint32_t * pulHostnameLength,
                                                             uint8_t * pucDeviceID,
                                                             uint32_t * pulDeviceIDLength )
{
    uint32_t ulHostnameLength;
    uint32_t ulDeviceIDLength;
    AzureIoTResult_t xResult;
    az_span * pxHostname;
    az_span * pxDeviceID;

    if( ( pxAzureProvClient == NULL ) || ( pucHubHostname == NULL ) ||
        ( pulHostnameLength == NULL ) || ( pucDeviceID == NULL ) || ( pulDeviceIDLength == NULL ) )
    {
        AZLogError( ( "AzureIoTProvisioningClient_GetDeviceAndHub failed: invalid argument" ) );
        xResult = eAzureIoTErrorInvalidArgument;
    }
    else if( pxAzureProvClient->_internal.ulWorkflowState != azureiotprovisioningWF_STATE_COMPLETE )
    {
        AZLogError( ( "AzureIoTProvisioning client state is not in complete state" ) );
        xResult = eAzureIoTErrorFailed;
    }
    else if( pxAzureProvClient->_internal.ulLastOperationResult )
    {
        xResult = pxAzureProvClient->_internal.ulLastOperationResult;
    }
    else
    {
        pxHostname = &pxAzureProvClient->_internal.xRegisterResponse.registration_state.assigned_hub_hostname;
        pxDeviceID = &pxAzureProvClient->_internal.xRegisterResponse.registration_state.device_id;
        ulHostnameLength = ( uint32_t ) az_span_size( *pxHostname );
        ulDeviceIDLength = ( uint32_t ) az_span_size( *pxDeviceID );

        if( ( *pulHostnameLength < ulHostnameLength ) || ( *pulDeviceIDLength < ulDeviceIDLength ) )
        {
            AZLogWarn( ( "AzureIoTProvisioning memory buffer passed is not enough to store hub info" ) );
            xResult = eAzureIoTErrorFailed;
        }
        else
        {
            memcpy( pucHubHostname, az_span_ptr( *pxHostname ), ulHostnameLength );
            memcpy( pucDeviceID, az_span_ptr( *pxDeviceID ), ulDeviceIDLength );
            *pulHostnameLength = ulHostnameLength;
            *pulDeviceIDLength = ulDeviceIDLength;
            xResult = eAzureIoTSuccess;
        }
    }

    return xResult;
}