CK_RV PKCS11_PAL_DestroyObject()

in components/pkcs11_pal/source/core_pkcs11_pal.c [441:496]
43 lines of code
5 McCabe index (conditional complexity)

CK_RV PKCS11_PAL_DestroyObject( CK_OBJECT_HANDLE xHandle )
{
    CK_RV xResult = CKR_OK;
    CK_BYTE_PTR pxZeroedData = NULL;
    CK_BYTE_PTR pxObject = NULL;
    CK_BBOOL xIsPrivate = ( CK_BBOOL ) CK_TRUE;
    CK_OBJECT_HANDLE xPalHandle2 = CK_INVALID_HANDLE;
    CK_ULONG ulObjectLength = sizeof( CK_BYTE );
    char * pcLabel = NULL;
    CK_ATTRIBUTE xLabel;

    prvHandleToLabel( &pcLabel, xHandle );

    if( pcLabel != NULL )
    {
        xLabel.type = CKA_LABEL;
        xLabel.pValue = pcLabel;
        xLabel.ulValueLen = strlen( pcLabel );

        xResult = PKCS11_PAL_GetObjectValue( xHandle, &pxObject, &ulObjectLength, &xIsPrivate );
    }   
    else
    {
        xResult = CKR_OBJECT_HANDLE_INVALID;
    }   

    if( xResult == CKR_OK )
    {
        /* Some ports return a pointer to memory for which using memset directly won't work. */
        pxZeroedData = pvPortMalloc( ulObjectLength * sizeof( CK_BYTE ) );

        if( NULL != pxZeroedData )
        {
            /* Zero out the object. */
            ( void ) memset( pxZeroedData, 0x0, ulObjectLength );
            /* Create an object label attribute. */
            /* Overwrite the object in NVM with zeros. */
            xPalHandle2 = PKCS11_PAL_SaveObject( &xLabel, pxZeroedData, ( size_t ) ulObjectLength );

            if( xPalHandle2 != xHandle )
            {
                xResult = CKR_GENERAL_ERROR;
            }

            vPortFree( pxZeroedData );
        }
        else
        {
            xResult = CKR_HOST_MEMORY;
        }

        PKCS11_PAL_GetObjectValueCleanup( pxObject, ulObjectLength );
    }

    return xResult;
}