From: Andre Nathan <andre@...>
Date: 2004-05-19T20:44:25+09:00
Subject: Re: RCR: UNIX credentials

On Wed, 2004-05-19 at 07:04, Guillaume Marcais wrote:
> 1) This works fine too:
> class UNIXSocket
>    def getpeercredentials
>      getsockopt(Socket::SOL_SOCKET, Socket::SO_PEERCRED).unpack("i3")
>    end
> end
> 
> No need for C code. Tested on Linux. A web search tells me that the 
> SO_PEERCRED option is supported on the BSD family as well.

According to David Wheeler[1] this is a Linux-only thing.

Also, the Unix Network Programming book says there's no portable way of
doing that (but shows how to do it on FreeBSD, using SCM_CREDS IIRC).

Best regards,
Andre


[1]http://www.dwheeler.com/secure-programs/Secure-Programs-HOWTO/sockets.html

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design, v.: What you regret not doing later on.