getpwnam/uid for group with ID_TYPE_BOTH

[Uri Simchoni]

On 9/24/19 12:45 AM, Stefan Metzmacher via samba-technical wrote:
> Hi Rowland,
> 
> No, it did with 4.5 and that's how it's supposed to be.
> That's exactly what ID_TYPE_BOTH is all about.
> 
> metze
> 

Hi metze,

Can you elaborate on that sentence, and what is the use case for 
generating passwd for a group? Is it related to a file being owned by a 
group SID (administrators)?

I'm not sure I ever understood this ID_TYPE_BOTH thing - I seem to 
remember that my understanding has been that it simplifies the code - 
that some rid backends don't know and don't care if a SID is a group or 
a user, but they sure can convert it to a unix ID, hence the "both", but 
that explanation doesn't mandate ability to generate passwd for a group, 
so hearing that this is actually what ID_TYPE_BOTH is all about was 
surprising to me.

Thanks,
Uri.