Category name in products list

[dasteralo]

Hello,

I am using this code to display category name in product list and that works perfectly :

{if isset($product.id_category_default)}
{assign var='catname' value=Category::getCategoryInformations(array($product.id_category_default))}
{$catname[$product.id_category_default].name}
{/if}

but i would like to link the category. How is it possible?
And then i would like to truncate the category name for those who are too long.
How can i do this?
Thank you very much for your help,
Regards

[dasteralo]

Up! I really need your help.
Thank you