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Re: [libvirt] [PATCH 0/4] uid_t|gid_t fixes for 32 bit Linux

On 02/22/2013 09:58 AM, Philipp Hahn wrote:
> @Guido: for Debian only the 4th patch is relevant, which applies with some
> re-indention.

Unfortunately, the 4th patch is the one that needs rework.

> Additional issues:
>  - UID and GID 4294967295 happens to be the same as -1, so hopefully nobody
>    uses it. Should this be documented somewhere?

Unless someone ever invents a system with 64-bit uid_t (to date, no one
has - your claims about u64 to the contrary), treating 4294967295 as
(uid_t)-1 is safe.  POSIX already guaranteed that (uid_t)-1 cannot be
used as a valid user id.

>  - Some regression test?

Did you run 'make check' on your patch?  We already have XML output that
is affected by the change in output format, and can write the test so
that we prove that multiple ways of formatting input all get
canonicalized to the same output.

Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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