[Y2038] Trying Debian/armhf rebootstrap with time64

[Ben Hutchings]

On Fri, 2020-03-20 at 00:09 +0100, Florian Weimer wrote:
> * Ben Hutchings:
> 
> > On Mon, 2020-03-16 at 16:02 +0100, Arnd Bergmann wrote:
> > > On Mon, Mar 16, 2020 at 3:47 PM Rich Felker <dalias@libc.org> wrote:
> > > 
> > > > libtirpc is the replacement. I wasn't aware if uses libc-provided rpc
> > > > headers (presumably only if they exist, since folks are using it fine
> > > > on musl) but even if so I think the types will automatically update
> > > > when time_t changes. Of course that leaves the libtirpc ABI dependent
> > > > on which time_t is used.
> > > 
> > > Ok, makes sense. I suppose it just provides a header with the same
> > > name then.
> > 
> > * nfs-utils build-depends on libtirpc-dev, and isn't using the glibc
> > SunRPC headers except for <rpc/netdb.h>.  libtirpc's <rpc/rpcent.h>
> > specifically avoids declaring things that are also declared in glibc's
> > <rpc/netdb.h>.
> > 
> > * ntirpc is a different port of the SunRPC code, used by nfs-ganesha.
> > 
> > * nis and nfswatch really are using the glibc SunRPC headers.
> 
> Which part of NIS?  There's a new upstream for libnsl
> <https://github.com/thkukuk/libnsl> and the NSS module
> <https://github.com/thkukuk/libnss_nis>;.  (There is a nisplus module
> as well.)

This is Debian's "nis" source package, which is a bundle of yp-tools,
ypserv, and ypbind-mt from the same upstream author.  It's unmaintained
and has lots of bug reports in Debian.

> All these use libtirpc and support IPv6 in addition to IPv4.  As far
> as I know, it is possible to build a full NIS stack without relying on
> any of the legacy glibc code.
> 
> (I don't know about nfswatch.)

The upstream for that is <https://sourceforge.net/projects/nfswatch/>. 
The current Fedora package is patched to use libtirpc.

Ben.

-- 
Ben Hutchings, Software Developer                         Codethink Ltd
https://www.codethink.co.uk/                 Dale House, 35 Dale Street
                                     Manchester, M1 2HF, United Kingdom