So the functions to choose from are: setuid/setgid: Available on all platforms. Sets effective uid/gid. On Linux, sets real and saved uid/gid if caller is root. On BSD, always sets all of them.
seteuid/setegid: Defined by BSD, available on Linux. Sets effective uid/gid. setreuid/setregid: Also BSD, available on Linux. Sets real and effective uid/gid. Unless I'm missing something, we just want to drop all priveleges and not regain them. Since we're on privileged ports, we're running as root. So setuid/setgid seems to make the most sense. Aaron Dan Weber <[EMAIL PROTECTED]> said: > > On Wed, May 12, 2004 at 10:44:40PM +0200, Paul J Stevens wrote: > > AFAIK setresuid/setresgid are gnu extensions that are also available on > > freebsd and hp-ux. Providing this on debian is of course no immediate > > problem, even though we'd have to #define _GNU_SOURCE; For upstream, > > however: a no go, it seems. > > I think it is necessary tho. I mean you can use the alternatives, but > they don't seem to make a complete solution. For debian this patch is > fine, use some #ifdef statements for systems that don't support it. > They can use the others. configure should be handling this even. > likes if build=3D *-*-gnu, then have it put #define _GNU_SOURCE in > config.h. Then surround the stuff I wrote with #ifdef _GNU_SOURCE > etc. The alternatives are seteuid and setegid which can be there with > an ifndef _GNU_SOURCE > --
