>> another option is to force the mapping of types that this interface 
>> provides to those in smf to be 1-1.  the api consumer would then be 
>> required to do range checking specific to the property being handled, 
>> and cast to a more specific type if necessary.  how feasible would 
>> that be?
>>
> 
I agree with this approach.
> 
> uint16_t vlanid = 123;
> dladm_set_conf_field(conf, "vlanid", (void*)&vlanid, DLADM_TYPE_INT);
> 

uint16_t vlanid = 123;
dladm_set_conf_field(conf, "vlanid", (void*)(uintptr_t)vlanid, DLADM_TYPE_INT);

I think the above usage would be better and less error-prone.

Thanks
- Cathy

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