C_GetSlotList

CK_DECLARE_FUNCTION( CK_RV, C_GetSlotList )( CK_BBOOL tokenPresent,
                                             CK_SLOT_ID_PTR pSlotList,
                                             CK_ULONG_PTR pulCount )
{
    CK_RV xResult = CKR_OK;
 
    /* Since the mbedTLS implementation of PKCS#11 does not depend
     * on a physical token, this parameter is ignored. */
    ( void ) ( tokenPresent );
 
    /* See explanation in prvCheckValidSessionAndModule for this exception. */
    /* coverity[misra_c_2012_rule_10_5_violation] */
    if( xP11Context.xIsInitialized != ( CK_BBOOL ) CK_TRUE )
    {
        xResult = CKR_CRYPTOKI_NOT_INITIALIZED;
        LogError( ( "Failed to get slot list. PKCS #11 must be initialized "
                    "before any operations." ) );
    }
 
    if( NULL == pulCount )
    {
        xResult = CKR_ARGUMENTS_BAD;
        LogError( ( "Failed to get slot list. Count pointer was NULL." ) );
    }
 
    if( xResult == CKR_OK )
    {
        if( NULL == pSlotList )
        {
            *pulCount = 1;
        }
        else
        {
            if( 0u == *pulCount )
            {
                xResult = CKR_BUFFER_TOO_SMALL;
                LogWarn( ( "The buffer is too small to contain the slot list." ) );
            }
            else
            {
                pSlotList[ 0 ] = pkcs11SLOT_ID;
                *pulCount = 1;
                LogDebug( ( "Successfully Returned a PKCS #11 slot with ID "
                            "%lu with a count of %lu.", ( unsigned long int ) pkcs11SLOT_ID, ( unsigned long int ) *pulCount ) );
            }
        }
    }
 
    return xResult;
}