On Aug 1, 2007, at 2:27 AM, Arne H. Juul wrote:

>> On Jul 31, 2007, at 4:59 PM, Daniel Carosone wrote:
>>> You want getsockopt and the SO_PEERCRED option.  AFAICT, this is the
>>> 'conventional' way of getting this functionality across (at least)
>>> Linux and *BSD - the FreeBSD syscall seems to be an extra.  (Is it
>>> really a syscall, or a convenient library wrapper around  
>>> getsockopt?)
>
> On Tue, 31 Jul 2007, Jason Thorpe wrote:
>> The latter, I believe.  If we have the sockopt, might as well have  
>> the API call as well.
>
> you're both right in that - the FreeBSD getpeereid() is just a wrapper
> around getsockopt with their LOCAL_PEERCRED option.  But my NetBSD
> -current machine has neither SO_PEERCRED nor LOCAL_PEERCRED defined
> anywhere:

Right, we don't implement that socket option yet.  We'd need to do  
that first.

>
>
> blackbox:~:$ uname -s -r
> NetBSD 4.99.25
> blackbox:~:$ grep -r SO_PEERCRED /usr/include/
> blackbox:~:$ grep -r LOCAL_PEERCRED /usr/include/
> blackbox:~:$ grep -r LOCAL_CREDS /usr/include/
> /usr/include/sys/un.h:#define   LOCAL_CREDS     0x0001          /*  
> pass
> credentials to receiver */
>
> only the LOCAL_CREDS that I mentioned in my first mail is defined.
>
>>> For usage examples, see postgresql or ssh code.
>
> the ssh code looks really bad to me when SO_PEERCRED is undefined.
>
>  -  Arne H. J.

-- thorpej