This operation removes the terminal atomic name in name from the the target context -- that named by all but the terminal atomic part of name.

This operation is successful even if the terminal atomic name was not bound in target context, but fails if any of the intermediate names are not bound. fn_ctx_unbind() is idempotent.

The operation returns 1 if successful, and 0 otherwise.

fn_ctx_unbind() sets status as described in FN_status_t and xfn_status_codes (3XFN).

Certain naming systems may disallow unbinding a name if the name is bound to an existing context in order to avoid orphan contexts that cannot be reached via any name. In such situations, the status code FN_E_OPERATION_NOT_SUPPORTED is returned.

In naming systems that support attributes, and store the attributes along with the names, the unbind operation removes the name and its associated attributes.

Normal resolution always follows links. In an fn_ctx_unbind() operation, resolution of name continues to the target context; the terminal atomic name is not resolved. If the terminal atomic name is bound to a link, the link is not followed and the link itself is unbound from the terminal atomic name.

See attributes(5) for descriptions of the following attributes:

FN_composite_name_t(3XFN), FN_ctx_t(3XFN), FN_ref_t(3XFN), FN_status_t(3XFN), fn_ctx_bind(3XFN), fn_ctx_lookup(3XFN), xfn_status_codes(3XFN), xfn(3XFN), attributes(5)